Service and Maintenance Instructions

Service and Maintenance Instructions
50HCQ*04---12
Single Package Heat Pump/Electric Heat
Nominal 3 to 10 Tons
With Puron (R---410A) Refrigerant
Service and Maintenance Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1
Installation and servicing of air-conditioning equipment
can be hazardous due to system pressure and electrical
components. Only trained and qualified service personnel
should install, repair, or service air-conditioning
equipment. Untrained personnel can perform only the
basic maintenance functions such as replacing filters.
Trained service personnel should perform all other service
and maintenance operations.
UNIT ARRANGEMENT AND ACCESS . . . . . . . . . . . 3
RETURN AIR FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . 3
SUPPLY FAN (BLOWER) SECTION . . . . . . . . . . . . . . 4
HEAT PUMP REFRIGERATION SYSTEM . . . . . . . . . 9
PURON (R-- 410A) REFRIGERANT . . . . . . . . . . . . . 12
THERMOSTATIC EXPANSION VALVE (TXV) . . . . 13
COOLING CHARGING CHARTS . . . . . . . . . . . . . . . . 16
CONVENIENCE OUTLETS . . . . . . . . . . . . . . . . . . . . 22
HEAT PUMP CONTROLS . . . . . . . . . . . . . . . . . . . . . . 23
PROTECTIVE CONTROLS . . . . . . . . . . . . . . . . . . . . . 23
COMMERCIAL DEFROST CONTROL . . . . . . . . . . . 24
ELECTRIC HEATERS . . . . . . . . . . . . . . . . . . . . . . . . . 27
SMOKE DETECTORS . . . . . . . . . . . . . . . . . . . . . . . . . 30
PREMIERLINK CONTROL . . . . . . . . . . . . . . . . . . . 37
RTU-- OPEN CONTROL SYSTEM . . . . . . . . . . . . . . . . 38
SENSORY/ACCESSORY INSTALLATION . . . . . . . . 38
ADDITIONAL RTU-- OPEN INSTALLATION AND
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 38
PRE-- START-- UP START-UP . . . . . . . . . . . . . . . . . . . . 40
START-UP, GENERAL . . . . . . . . . . . . . . . . . . . . . . . . 40
START-UP, PREMIERLINK . . . . . . . . . . . . . . . . . . . 42
START-UP, RTU-- OPEN
. . . . . . . . . . . . . . . . . . . . . . . 42
FASTENER TORQUE VALUES . . . . . . . . . . . . . . . . . 43
APPENDIX I. MODEL NUMBER SIGNIFICANCE . . . 44
APPENDIX II. PHYSICAL DATA . . . . . . . . . . . . . . . . 46
APPENDIX III. FAN PERFORMANCE . . . . . . . . . . . 52
APPENDIX IV. ELECTRICAL INFORMATION . . . . 62
APPENDIX V. WIRING DIAGRAMS . . . . . . . . . . . . . 87
APPENDIX VI. MOTORMASTER SENSOR
LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
UNIT START-UP CHECKLIST . . . . . . . . . . . . . . . . . 109
When working on air-conditioning equipment, observe
precautions in the literature, tags and labels attached to
the unit, and other safety precautions that can apply.
Follow all safety codes. Wear approved safety glasses and
leather work gloves. Use quenching cloth for unbrazing
operations. Have fire extinguishers available for all
brazing operations.
Read these instructions thoroughly and follow all
warnings or cautions attached to the unit. Consult local
building codes and National Electrical Code (NEC) for
special requirements.
Recognize safety information. This is the safety ALERT
. When you see this symbol on the unit and in
symbol
instructions or manuals, be aware of the potential for
physical injury hazards.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety-- ALERT
symbol. DANGER indicates a hazardous situation which,
if not avoided, will result in death or severe personal
injury. WARNING indicates a hazardous situation which,
if not avoided, could result in death or personal injury.
CAUTION indicates a hazardous situation which, if not
avoided, could result in minor to moderate injury or
product and property damage. NOTICE is used to address
practices not related to physical injury. NOTE is used to
highlight suggestions which will result in enhanced
installation, reliability, or operation.
!
WARNING
!
FIRE, EXPLOSION HAZARD
Failure to follow this
warning could result in
death, serious personal
injury and/or property
damage.
Never use air or gases containing oxygen for leak testing
or for operating refrigerant compressors. Pressurized
mixtures of air or gases containing oxygen can lead to an
explosion.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Before performing service or maintenance operations
on unit, LOCK-- OUT/TAGOUT the main power
switch to unit. Electrical shock and rotating equipment
could cause severe injury.
!
WARNING
!
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits can use
multiple disconnects. Check convenience outlet for
power status before opening unit for service. Locate
the disconnect switch and lock it in the open position
it. LOCK-- OUT/TAGOUT this switch to notify others.
!
WARNING
FIRE, EXPLOSION HAZARD
Failure to follow this
warning could result in
death, serious personal
injury and/or property
damage.
Never use non-- certified refrigerants in this product.
Non-- certified refrigerants could contain contaminates
that could lead to unsafe operating conditions. Use
ONLY refrigerants that conform to AHRI Standard
700.
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
Puron (R-- 410A) refrigerant systems operate at higher
pressures than standard R-- 22 systems. Do not use
R-- 22 service equipment or components on Puron
refrigerant equipment.
!
WARNING
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in reduced
unit performance or unit shutdown.
High velocity water from a pressure washer, garden
hose, or compressed air should never be used to
clean a coil. The force of the water or air jet will
bend the fin edges and increase airside pressure drop.
WARNING
FIRE, EXPLOSION HAZARD
Failure to follow this
warning could result in
death, serious personal
injury and/or property
damage.
Disconnect gas piping from unit when pressure testing
at pressure greater than 0.5 psig. Pressures greater than
0.5 psig will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure
greater than 0.5 psig, it must be replaced before use.
When pressure testing field-supplied gas piping at
pressures of 0.5 psig or less, a unit connected to such
piping must be isolated by closing the manual gas
valve(s).
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
Pressing the controller’s test/reset switch for longer
than seven seconds will put the duct detector into the
alarm state and activate all automatic alarm responses.
2
UNIT ARRANGEMENT AND ACCESS
Seasonal Maintenance
General
The following items should be checked at the beginning
of each season (or more often if local conditions and
usage patterns dictate):
CONTROL BOX
INDOOR BLOWER
ACCESS
Air Conditioning/Heat Pump:
S
S
S
S
S
S
S
S
S
Ensure outdoor fan motor mounting bolts are tight
Ensure compressor mounting bolts are tight
Inspect outdoor fan blade positioning
Ensure control box is clean
Check control box wiring condition
Ensure wire terminals are tight
Check refrigerant charge level
Ensure indoor coils are clean
Check supply blower motor amperage
Electric Heating:
COMPRESSORS
(A07, D08-09 only)
C09190
Fig. 1 - Typical Access Panel Location (Front)
FILTER ACCESS PANEL
S Inspect power wire connections
S Ensure fuses are operational
S Ensure manual-- reset limit switch is closed
Economizer or Outside Air Damper
S Check inlet filters condition
S Check damper travel (economizer)
S Check gear and dampers for debris and dirt
Air Filters and Screens
Each unit is equipped with return air filters. If the unit has
an economizer, it will also have an outside air screen. If a
manual outside air damper is added, it will also have a an
inlet air screen.
Each of these filters and screens will need to be
periodically cleaned or replaced.
RETURN AIR FILTERS:
INDOOR COIL ACCESS PANEL
C08449
CAUTION
Fig. 2 - Typical Access Panel Locations (Rear)
Routine Maintenance
EQUIPMENT DAMAGE HAZARD
Failure to follow this CAUTION can result in
premature wear and damage to equipment.
These items should be part of a routine maintenance
program, to be checked every month or two, until a
specific schedule for each can be identified for this
installation:
DO NOT OPERATE THE UNIT WITHOUT THE
RETURN AIR FILTERS IN PLACE.
Quarterly Inspection (and 30 days after initial start):
S
S
S
S
S
S
S
S
Replace return air filter
Clean outdoor hood inlet filters
Check belt tension
Check belt condition
Inspect pulley alignment
Check fan shaft bearing locking collar tightness
Check outdoor coil cleanliness
Check condensate drain
Dirt and debris build-- up on components can cause
premature wear on components resulting in
component failure.
Return Air Filters are disposable fiberglass filters. Access
to the filters is through the lift-- out filter access panel
located on the rear side of the unit, above the indoor coil
access panel. See Fig. 2.
3
50HCQ
Fig. 1 and Fig. 2 show general unit arrangement and
access locations.
Removing the Return Air Filters:
1. Grasp the bottom flange of the upper panel.
2. Lift up and swing the bottom out until the panel
disengages and pulls out.
3. Reach inside and remove filters from the filter rack.
4. Replace filters as required with similar replacement
filters of same size.
Re-- installing the Access Panel:
1. Slide the top of the panel up under the unit top panel.
2. Slide the bottom into the side channels.
3. Push the bottom flange down until it contacts the top
of the lower panel (or economizer top).
C07156
Fig. 4 - Screens Installed on Outdoor-- Air Hood
(Sizes A07, D08-- 09s Shown)
50HCQ
Outside Air Hood:
Outside Air Hood inlet screens are permanent
aluminum-- mesh type filters. Check these for cleanliness.
Remove the screens when cleaning is required. Clean by
washing with hot low-- pressure water and soft detergent
and replace all screens before restarting the unit. Observe
the flow direction arrows on the side of each filter frame.
Economizer Inlet Air Screen:
Remove the screen by loosening the three screws in the
top retainer and move the retainer up until the filter can be
removed.
Re-- install the Manual Outside Air Hood Screen by
placing the screen frame in its track, rotating the retainer
back down. Tighten all screws.
This air screen is retained by filter clips under the top
edge of the hood. See Fig. 3.
SUPPLY FAN (BLOWER) SECTION
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning can cause personal
injury or death.
Before performing service or maintenance operations
on the fan system, disconnect all electrical power to
the unit and apply approved Lock-- out/Tagout
procedures to the unit disconnect switch. Do not
reach into the fan section with power applied to unit.
DIVIDER
OUTSIDE
AIR
HOOD
CLEANABLE
ALUMINUM
FILTER
WARNING
FILTER
BAROMETRIC
RELIEF
FILTER
CLIP
C08634
Fig. 3 - Filter Installation
To remove the filter, open the spring clips. Re-- install the
filter by placing the frame in its track, then closing the
filter clips.
Supply Fan (Direct--Drive)
For unit sizes 04, 05 and 06, a direct-- drive
forward-- curved centrifugal blower wheel is an available
option. The motor has taps to provide the servicer with the
selection of one of five motor torque/speed ranges to best
match wheel performance with attached duct system. See
Fig. 5 (50HCQ Direct-- Drive Fan Assembly) and Fig. 6
(ECM Motor Connectors).
Manual Outside Air Hood Screen
The Manual Outside Air Hood Screen is secured by three
screws and a retainer angle across the top edge of the
hood. See Fig. 4.
4
ECM Motor
L2
YEL
Gnd
GRN/YEL
95°
Motor
Power
Connections
L1
BLU
Motor Plug Position
(95° from vertical)
ECM Power
Transformer
(460, 575v)
C L G N
Com
BRN
Speed
Taps
1 2 3 4 5
C09260
Fig. 5 - 50HCQ Direct-- Drive Supply Fan Assembly
VIO
Default Connection
C09261
50HCQ
Fig. 6 - ECM Motor Connectors
208/230, 460V Units
575V Units
C09263
Fig. 7 - ECM Unit Wiring
5
50HCQ
ECM Motor — The direct-- drive motor is an X13
Electronically Commutated Motor (ECM). An ECM
motor contains electronic circuitry used to convert
single-- phase line AC voltage into 3-- phase DC voltage to
power the motor circuit. The motor circuit is a DC
brushless design with a permanent magnet rotor. On the
X13 ECM Motor design, the electronic circuitry is
integral to the motor assembly and cannot be serviced or
replaced separately.
208/230V units use a 230V motor and 460V units use a
460V motor. 575V units use a 460V motor with an
autotransformer. Motor power voltage is connected to
motor terminals L and N (see Fig. 6 and Fig. 7); ground
is connected at terminal G. The motor power voltage is
ALWAYS present; it is not switched off by a motor
contactor.
Motor operation is initiated by the presence of a 24V
control signal to one of the five motor communications
terminals. When the 24V signal is removed, the motor
will stop. The motor control signal is switched by the
defrost board’s IFO output.
Evaluating motor speed — The X13 ECM Motor uses a
constant torque motor design. The motor speed is adjusted
by the motor control circuitry to maintain the programmed
shaft torque. Consequently there is no specific speed value
assigned to each control tap setting. At the Position 5 tap,
the motor speed is approximately 1050 RPM (17.5 r/s) but
varies depending on fan wheel loading.
Selecting speed tap — The five communication terminals
are each programmed to provide a different motor torque
output. See Table 1. Factory default tap selection is
Position 1 for lowest torque/speed operation.
Table 1 – Motor Tap Programing (percent of full--load
torque)
Unit Size
04
05
06
Tap 1
29
46
49
Tap 2
33
49
55
Tap 3
41
57
79
Tap 4
48
67
90
X13 ECM requires a voltmeter.
1. Disconnect main power to the unit.
2. Remove the motor power plug (including the control
BRN lead) and VIO control signal lead at the motor
terminals.
3. Restore main unit power.
4. Check for proper line voltage at motor power leads
BLK (at L terminal) and YEL (at N terminal).
Table 2 – Motor Test Volts
Unit Voltage
208/230
460
575
Replacing the X-- 13 ECM Motor — Before removing
the ECM belly-- band mounting ring from old motor:
1. Measure the distance from base of the motor shaft to
the edge of the mounting ring.
2. Remove the motor mounting band and transfer it to
the replacement motor.
3. Position the mounting band at the same distance that
was measured in Step 1.
4. Hand-- tighten mounting bolt only. Do not tighten
securely at this time.
5. Insert the motor shaft into the fan wheel hub.
6. Securely tighten the three motor mount arms to the
support cushions and torque the arm mounting screws
to 60 in-- lbs (6.8 Nm).
7. Center the fan wheel in the fan housing. Tighten the
fan wheel hub setscrew and torque to 120 in-- lbs (13.6
Nm).
8. Ensure the motor terminals are located at a position
below the 3 o’clock position. See Fig. 5. Tighten the
motor belly-- band bolt and torque to 80 in-- lbs (9.0
Nm).
Factory Default: Tap 1 (VIO)
Selecting another speed:
1. Disconnect main power to the unit. Apply
lockout/tagout procedures.
2. Remove the default motor signal lead (VIO) from
terminal 1 at the motor communications terminal.
3. Reconnect the motor signal lead to the desired speed
(terminals 1 through 5).
4. Connect main power to the unit.
Troubleshooting the ECM motor — Troubleshooting the
Min---Max Volts
187--- 253
414--- 506
414--- 506
5. Using a jumper wire from unit control terminals R to
G, engage motor operation. Check for 24v output at
the defrost board terminal IFO.
6. Check for proper control signal voltages of 22V to
28V at motor signal leads VIO and BRN.
7. Disconnect unit main power. Apply lockout/tagout
procedures.
8. Reconnect motor power and control signal leads at
the motor terminals.
9. Restore unit main power.
10. The motor should start and run. If the motor does not
start, remove the motor assembly. Replace the motor
with one having the same part number. Do not
substitute with an alternate design motor as the
torque/ speed programming will not be the same as
that on an original factory motor.
Tap 5
100
100
100
Motor “rocking” on start-- up — When the motor first
starts, the rotor (and attached wheel) will “rock” back and
forth as the motor tests for rotational direction. Once the
correct rotational direction is determined by the motor
circuitry, the motor will ramp up to the specified speed.
The “rocking” is a normal operating characteristic of
ECM motors.
Motor Voltage
230
460
460
Supply Fan (Belt--Drive)
The belt-- drive supply fan system consists of a
forward-- curved centrifugal blower wheel on a solid shaft
with two concentric type bearings, one on each side of the
blower housing. A fixed-- pitch driven pulley is attached to
6
the fan shaft and an adjustable-- pitch driver pulley is on
the motor. The pulleys are connected using a V-- belt. See
Fig. 8.
STRAIGHTEDGE
BROWNING BELT
TENSION CHECKER
BLOWER PULLEY
1/2”
(1.3 cm)
V-BELT
MOTOR
PULLEY
MOTOR
MOUNTING
BOLTS (4)
MOTOR MOUNTING
PLATE
C12093
C11504
Fig. 9 - Checking Blower Motor Belt Tension
Fig. 8 - Typical Belt Drive Motor Mounting
Variable Frequency Drive (VFD)
Replacing the Belt:
For units equipped with a VFD factory installed option
(FIOP), refer to the following supplement: “Variable
Frequency Drive (VFD) Installation, Setup and
Troubleshooting.”
NOTE: Use a belt with same section type or similar size.
Do not substitute a FHP-- type belt. When installing the
new belt, do not use a tool (screwdriver or pry-- bar) to
force the belt over the pulley flanges, this will stress the
belt and cause a reduction in belt life. Damage to the
pulley can also occur.
Belt
Check the belt condition and tension quarterly. Inspect the
belt for signs of cracking, fraying or glazing along the
inside surfaces. Check belt tension by using a spring-- force
tool, such as Browning’s “Belt Tension Checker” (p/n:
1302546 or equivalent tool); tension should be 6-- lbs at a
5/ - in (1.6 cm). deflection when measured at the
8
centerline of the belt span. This point is at the center of
the belt when measuring the distance between the motor
shaft and the blower shaft.
Use the following steps to replace the V-- belt. See Fig. 8.
1. Loosen the front and rear motor mounting plate bolts.
2. Push the motor and its mounting plate towards the
blower housing as close as possible to reduce the
center distance between fan shaft and motor shaft.
3. Remove the belt by gently lifting the old belt over
one of the pulleys.
4. Install the new belt by gently sliding the belt over
both pulleys and then sliding the motor and plate
away from the fan housing until proper tension is
achieved.
5. Check the alignment of the pulleys, adjust if necessary.
6. Tighten all bolts and torque to 65-- 70 in-- lb (7.4 to 7.9
Nm).
7. Check the tension after a few hours of runtime and
re-- adjust as required.
NOTE: Without the spring-- tension tool, place a straight
edge across the belt surface at the pulleys, then push down
on the belt at mid-- span using one finger until a 1/2 - in.
(1.3 cm) deflection is reached. See Fig. 9.
Adjust belt tension by loosening the motor mounting plate
front and rear bolts and sliding the plate toward the fan (to
reduce tension) or away from fan (to increase tension).
Ensure the blower shaft and the motor shaft are parallel to
each other (pulleys aligned). When finished, tighten all
bolts and torque to 65-- 70 in-- lb (7.4 to 7.9 Nm).
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this CAUTION can result in
premature wear and damage to equipment.
Do not use a screwdriver or a pry bar to place the new
V-- belt in the pulley groove. This can cause stress on
the V-- belt and the pulley resulting in premature wear
on the V-- belt and damage to the pulley.
Adjustable-- Pitch Pulley on Motor:
The motor pulley is an adjustable-- pitch type that allows a
7
50HCQ
BELT
DEFLECTION
servicer to implement changes in the fan wheel speed to
match as-- installed ductwork systems. The pulley consists
of a fixed flange side that faces the motor (secured to the
motor shaft) and a movable flange side that can be rotated
around the fixed flange side that increases or reduces the
pitch diameter of this driver pulley. See Fig. 10.
used to tighten the locking collars. Tighten the locking
collar by holding it tightly against the inner race of the
bearing. Tighten the socket head cap screw. Torque cap
screw to 55-- 60 in-- lb (6.2-- 6.8 Nm). See Fig. 11. Check
the condition of the motor pulley for signs of wear.
Glazing of the belt contact surfaces and erosion on these
surfaces are signs of improper belt tension and/or belt
slippage. Pulley replacement can be necessary.
FAN PULLEY
MOVABLE
FLANGE
MOTOR AND
FANSHAFTS
MUST BE
PARALLEL
LOCKING COLLAR
STRAIGHT EDGE
MUST BE PARALLEL
WITH BELT
50HCQ
SETSCREWS
FIXED FLANGE
MOTOR PULLEY
SINGLE - GROOVE
T--- 25 TORX SOCKET
HEAD CAP SCREW
C07075
C11505
Fig. 10 - Supply-- Fan Pulley Adjustment
As the pitch diameter is changed by adjusting the position
of the movable flange, the centerline on this pulley shifts
laterally (along the motor shaft). This creates a
requirement for a realignment of the pulleys after any
adjustment of the movable flange. Reset the belt tension
after each realignment.
Inspect the condition of the motor pulley for signs of
wear. Glazing of the belt contact surfaces and erosion on
these surfaces are signs of improper belt tension and/or
belt slippage. Replace pulley if wear is excessive.
Changing the Fan Speed:
1. Shut off unit power supply. Use proper lockout/tagout
procedures.
2. Loosen belt by loosening fan motor mounting nuts.
See Fig. 8.
3. Loosen movable pulley flange setscrew. See Fig. 10.
4. Screw movable flange toward fixed flange to increase
speed and away from fixed flange to decrease speed.
Increasing fan speed increases load on motor. Do not
exceed the maximum specified speed.
5. Set movable flange at nearest keyway of pulley hub.
Tighten setscrew and torque to 65-- 70 in-- lb (7.4 to 7.9
Nm).
Aligning Blower and Motor Pulleys:
1. Loosen blower pulley setscrews.
2. Slide blower pulley along blower shaft. Make angular
alignment by loosening motor mounting plate front
and rear bolts.
3. Tighten blower pulley setscrews and motor mounting
bolts. Torque bolts to 65-- 70 in-- lb (7.4 to 7.9 Nm).
4. Recheck belt tension.
Fig. 11 - Tightening Locking Collar
Motor
When replacing the motor, also replace the external-- tooth
lock washer (star washer) under the motor mounting base;
this is part of the motor grounding system. Ensure the
teeth on the lock washer are in contact with the motor’s
painted base. Tighten motor mounting bolts and torque to
120  12 in-- lbs (14  1.4 Nm).
Change fan wheel speed by changing the fan pulley
(larger pitch diameter to reduce wheel speed, smaller
pitch diameter to increase wheel speed) or select a new
system (both pulleys and matching belt). The horsepower
rating of the belt is primarily dictated by the pitch
diameter of the smaller pulley in the drive system
(typically the motor pulley in these units). Do not install a
replacement motor pulley with a smaller pitch diameter
than was provided on the original factory pulley.
Before changing pulleys to increase fan wheel speed,
check the fan performance at the target speed and airflow
rate to determine new motor loading (bhp). Use the fan
performance tables or use the Packaged Rooftop Builder
software program. Confirm that the motor in this unit is
capable of operating at the new operating condition. Fan
shaft loading increases dramatically as wheel speed is
increased.
To reduce vibration, replace the motor’s adjustable pitch
pulley with a fixed pitch pulley (after the final airflow
balance adjustment). This will reduce the amount of
vibration generated by the motor/belt-- drive system.
Bearings:
The fan system uses bearings featuring concentric split
locking collars. A Torx T-- 25 socket head cap screw is
8
!
WARNING
A periodic clean water rinse is very beneficial for coils
that are applied in coastal or industrial environments.
However, it is very important that the water rinse is made
with very low velocity water stream to avoid damaging
the fin edges. Monthly cleaning as described below is
recommended.
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
This system uses PuronR (R410A) refrigerant that
operates at higher pressures than standard R-- 22
systems and other refrigerants. No other refrigerant
can be used in this system. Gauge set, hoses, and
recovery system must be designed to handle Puron
refrigerant. If unsure about equipment, consult the
equipment manufacturer.
!
CAUTION
PERSONAL INJURY AND UNIT DAMAGE
HAZARD
Failure to follow this caution can result in personal
injury or equipment damage.
Only approved cleaning is recommended.
Routine Cleaning of Indoor Coil Surfaces:
Outdoor Coil
The 50HCQ outdoor coil is fabricated with round tube
copper hairpins and plate fins of various materials and/or
coatings (see “Appendix I - Model Number Significance”
to identify the materials provided in this unit). All unit
sizes use composite-- type two-- row coils. Composite
two-- row coils are two single-- row coils fabricated with a
single return bend end tubesheet.
Indoor Coil
The indoor coil is traditional round-- tube, plate-- fin
technology. Tube and fin construction is of various
optional materials and coatings (see Model Number
Format). Coils are multiple-- row.
Recommended Outdoor Coil Maintenance
and Cleaning
Routine cleaning of coil surfaces is essential to maintain
proper operation of the unit. Elimination of contamination
and removal of harmful residues will greatly increase the
life of the coil and extend the life of the unit. The
following maintenance and cleaning procedures are
recommended as part of the routine maintenance activities
to extend the life of the coil.
Remove Surface Loaded Fibers:
Surface loaded fibers or dirt should be removed with a
vacuum cleaner. If a vacuum cleaner is not available, a
soft non-- metallic bristle brush can be used. In either case,
the tool should be applied in the direction of the fins. Coil
surfaces can be easily damaged (fin edges can be easily
bent over and damage the coating of a protected coil)
when the tool is applied across the fins.
Periodic cleaning with Totaline Environmentally Sound
Coil Cleaner is essential in extending the life of coils.
This cleaner is available from Carrier Replacement
Components Division (p/n P902-- 0301 for one gallon
[3.8L] container, and p/n P902-- 0305 for a 5 gallon [19L]
container). It is recommended that all coils (including
standard aluminum, pre-- coated, copper/copper or
E-- coated coils) be cleaned with the Totaline
Environmentally Sound Coil Cleaner as described below.
Coil cleaning should be part of the unit’s regularly
scheduled maintenance procedures ensuring the long life
of the coil. Failure to clean the coils can result in reduced
durability in the environment.
Avoid the use of:
S
S
S
S
coil brighteners
acid cleaning prior to painting
high pressure washers
poor quality water for cleaning
Totaline Environmentally Sound Coil Cleaner is non-flammable, hypoallergenic, non bacterial and a USDA
accepted biodegradable agent that will not harm the coil
or surrounding components, such as electrical wiring,
painted metal surfaces or insulation. Use of
non-- recommended coil cleaners is strongly discouraged
because coil and unit durability can be affected.
Clean coil as follows:
1. Turn off unit power. Use lockout/tagout procedures
on unit power switch.
2. Remove top panel screws on outdoor coil end of unit.
3. Remove coil corner post. See Fig. 12. To hold top
panel open, place coil corner post between top panel
and center post. See Fig. 13.
NOTE: Use of a water stream, such as a garden hose,
against a surface loaded coil will drive the fibers and dirt
into the coil. This will make cleaning efforts more
difficult. Surface loaded fibers and dirt must be
completely removed prior to using low velocity clean
water rinse.
Periodic Clean Water Rinse:
9
50HCQ
HEAT PUMP REFRIGERATION
SYSTEM
OUTDOOR
COIL
OUTDOOR
COIL
50HCQ
C09219
C09220
Fig. 12 - Cleaning Condenser Coil (Size 04-- 06 shown)
Fig. 14 - Separating Coil Sections
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution can result in corrosion
and damage to the unit.
Harsh chemicals, household bleach, acid or basic
cleaners should not be used to clean outdoor or indoor
coils of any kind. These cleaners can be very difficult
to rinse out of the coil and can accelerate corrosion at
the fin/tube interface where dissimilar materials are in
contact. If there is dirt below the surface of the coil,
use the Totaline Environmentally Sound Coil Cleaner
as described below.
C08206
Fig. 13 - Propping Up Top Panel
4. For Sizes 04-- 06: Remove screws securing coil to
compressor plate and compressor access panel.
5. For Sizes 07-- 12: Remove fastener holding coil
sections together at return end of condenser coil.
Carefully separate the outdoor coil section 3 to 4 in.
(7.6-- 10 cm) from the inner coil section. See Fig. 14.
6. Clean the outer surfaces with a stiff brush in the
normal manner. Use a water hose or other suitable
equipment to flush down between the 2 coil sections
to remove dirt and debris.
7. Secure inner and outer coil rows together with a
field-- supplied fastener.
8. Reposition the outer coil section and remove the coil
corner post from between the top panel and center
post. Reinstall the coil corner post and replace all
screws.
Totaline Environmentally Sound Coil Cleaner
Application Equipment:
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution can result in reduced
unit performance.
High velocity water from a pressure washer, garden
hose, or compressed air should never be used to clean
a coil. The force of the water or air jet will bend the
fin edges and increase airside pressure drop.
Totaline Environmentally Sound Coil Cleaner
Application Instructions:
1. Proper protection equipment, such as approved safety
glasses and gloves, is recommended during mixing
and application of Totaline Environmentally Sound
Coil Cleaner.
2. Remove all surface loaded fibers and debris using a
vacuum cleaner or a soft non-- metallic bristle brush
as described above.
3. Thoroughly wet all finned surfaces with clean water
using a low velocity garden hose being careful not to
bend fins.
4. Mix Totaline Environmentally Sound Coil Cleaner in
a 2.5 gal (9.5L) garden spryer according to the
S 2.5 gal (9.5L) garden sprayer
S Water rinse with low velocity spray nozzle
10
instructions included with the cleaner. The optimum
solution temperature is 100F (38C).
NOTE: Do NOT USE water in excess of 130F (54C), as
the enzymatic activity will be destroyed.
5. Thoroughly apply Totaline Environmentally Sound
Coil Cleaner solution to all coil surfaces including
finned area, tube sheets and coil headers.
6. Hold garden sprayer nozzle close to finned areas and
apply cleaner with a vertical, up--and--down motion.
Avoid spraying in horizontal pattern to minimize
potential for fin damage.
7. Ensure cleaner thoroughly penetrates deep into finned
areas.
8. Interior and exterior finned areas must be thoroughly
cleaned.
9. Finned surfaces should remain wet with cleaning
solution for 10 minutes.
10. Ensure surfaces are not allowed to dry before rinsing.
Reapply cleaner as needed to ensure 10-- minute
saturation is achieved.
11. Thoroughly rinse all surfaces with low velocity clean
water using downward rinsing motion of water spray
nozzle. Protect fins from damage from the spray
nozzle.
3. If economizer or two-- position damper is installed,
remove economizer by disconnecting the Molex
plug and removing mounting screws.
4. Slide filters out of unit.
5. Clean coil using a commercial coil cleaner or
dishwasher detergent in a pressurized spray canister.
Wash both sides of coil and flush with clean water.
For best results, back-- flush toward return-- air section
to remove foreign material. Flush condensate pan
after completion.
6. Reinstall economizer and filters.
7. Reconnect wiring.
8. Replace access panels.
Each heat pump refrigeration system includes a
compressor, accumulator, reversing valve, dual-- function
outdoor coil with vapor header check valve, cooling liquid
line with a filter drier and a check valve, dual-- function
indoor coil with a vapor header check valve, and heating
liquid line with check a valve and a strainer. Unit sizes
A04-- 07 have a single compressor-- circuit; unit sizes D08
through D12 have two compressor-- circuits. See Fig. 15
for typical unit piping schematic (unit size D09 (4-- row
indoor coil) with two compressor-- circuits is shown).
Indoor Coil
Dual-- function outdoor and indoor coils are designed to
provide parallel coil circuits during evaporator-- function
operation and converging coil circuits during the
condenser-- function operation.
Cleaning the Indoor Coil:
1. Turn unit power off. Use proper lockout/tagout
procedures.
2. Remove indoor coil access panel.
FILTER
DRIER
LPS/LOC
2B
FILTER
DRIER
ACCUTROL
COOLING LIQUID LINES
1B
DFT1
TXV 2
1A
TXV1
COMP 2
1D
OUTDOOR COIL
COMPRESSOR
2A
HPS2
ACCUMULATOR
DFT 2
COMPRESSOR
ACCUMULATOR
2D
STRAINER
HPS1
INDOOR COIL
COMP 1
1C
STRAINER
HEATING LIQUID LINES
2C
C09228
Fig. 15 - Typical Unit Piping Schematic (with TXV valves on Indoor Coils)
11
50HCQ
Refrigeration System Components:
Reversing Valve and Check Valve Position
Refer to Fig. 15, above, and the Cooling Mode and
Heating Mode tables (Tables 3 and 4) above.
See Fig. 15 on page 11.
Refrigerant System Pressure Access Ports
Table 3 – Cooling Mode (each circuit)
Component
Status/Position
Reversing Valve
Energized
Check Valve A
Closed
Check Valve B
Open
Check Valve C
Closed
Check Valve D
Open
There are two access ports in each circuit - on the suction
tube and the discharge tube near the compressor. These
are brass fittings with black plastic caps. The hose
connection fittings are standard 1/4 SAE male flare
couplings.
The brass fittings are two-- piece High Flow valves, with a
receptacle base brazed to the tubing and an integral
spring-- closed check valve core screwed into the base. See
Fig. 16. This check valve is permanently assembled into
this core body and cannot be serviced separately. Replace
the entire core body if necessary. Service tools are
available from RCD that allow the replacement of the
check valve core without having to recover the entire
system refrigerant charge. Apply compressor refrigerant
oil to the check valve core’s bottom O-- ring. Install the
fitting body and torque to 9610 in-- lbs (10.9  1 Nm). Do
not exceed 106 in-- lbs (11.9 Nm) when tightening.
50HCQ
Table 4 – Heating Mode (each circuit)
Component
Status/Position
Reversing Valve
De--- energized
Check Valve A
Open
Check Valve B
Closed
Check Valve C
Open
Check Valve D
Closed
Table 5 – Defrost Mode
A04--- A07 and D08--- D12/Circuit 2:
Component
Status/Position
Defrost Thermostat
Closed
Outdoor Fan(s)
Off
Reversing Valve
Energized
Check Valve A
Closed
Check Valve B
Open
Check Valve C
Closed
Check Valve D
Open
Troubleshooting Refrigerant Pressure
Problems and Check Valves
CORE
SEAT
(Part No. EC39EZ067)
1/2-20
UNF RH
0.596
45
o
o
30
WASHER
O-RING
5/8” HEX
.47
1/2” HEX
This surface provides a metal to metal seal when
torqued into the seat. Appropriate handing is
required to not scratch or dent the surface.
DEPRESSOR PER ARI 720
+.01/-.035
FROM FACE OF BODY
7/16-20 UNF RH
C08453
Fig. 16 - CoreMax Access Port Assembly
PURONR (R--410A) REFRIGERANT
This unit is designed for use with Puron (R-- 410A)
refrigerant. Do not use any other refrigerant in this
system.
Puron (R-- 410A) refrigerant is provided in pink (rose)
colored cylinders. These cylinders are available with and
without dip tubes; cylinders with dip tubes will have a
label indicating this feature. For a cylinder with a dip
tube, place the cylinder in the upright position (access
valve at the top) when removing liquid refrigerant for
charging. For a cylinder without a dip tube, invert the
cylinder (access valve on the bottom) when removing
liquid refrigerant.
12
TXV Operation
The TXV is a metering device that is used in air
conditioning and heat pump systems to adjust to changing
load conditions by maintaining a preset superheat
temperature at the outlet of the evaporator coil. The
volume of refrigerant metered through the valve seat is
dependent upon the following (see Fig. 17):
1. Superheat temperature is sensed by the cap tube
sensing bulb on the suction tube at outlet of the
evaporator coil. This temperature is converted into
pressure by refrigerant in the bulb pushing downward
on the diaphragm which opens the valve using the
push rods. As long as this bulb and cap tube contain
any liquid refrigerant, this temperature is converted
into suction pressure pushing downward on the
diaphragm, which tends to open the TXV valve
through the push rods.
2. The suction pressure at the outlet of the evaporator
coil is transferred through the external equalizer tube
to the underside of the diaphragm.
3. The needle valve on the pin carrier is spring loaded,
exerting pressure on the underside of the diaphragm.
Therefore, the bulb pressure equals evaporator
pressure (at outlet of coil) plus spring pressure. If the
load increases, the temperature increases at the bulb,
which increases the pressure on the top side of the
diaphragm, pushing the carrier away from the seat,
opening the valve and increasing the flow of
refrigerant. The increased refrigerant flow causes
increased leaving evaporator pressure which is
transferred through the equalizer tube to the underside
of the diaphragm. This causes pin carrier spring
pressure to close the TXV valve. The refrigerant flow
is effectively stabilized to the load demand with a
negligible change in superheat.
Refrigerant Charge
The amount of refrigerant charge is listed on the unit’s
nameplate. Refer to Carrier Publication, “GTAC2-- 5
Charging, Recovery, Recycling and Reclamation Training
Manual” and the following procedures:
Unit panels must be in place when unit is operating during
the charging procedure. If unit is equipped with a head
pressure control device, bypass it to ensure full fan
operation during charging.
Charge checking and adjustments must be made while the
system is operating in Cooling only.
No Charge:
Use standard evacuation techniques for Puron (R-- 410A)
refrigerant.. After evacuating system, weigh the specified
amount of refrigerant.
THERMOSTATIC EXPANSION
VALVE (TXV)
All 50TCQ’s have a factory installed nonadjustable
thermostatic expansion valve (TXV). The TXV will be a
bi-flow, bleed port expansion valve with an external
equalizer. TXVs are specifically designed to operate with
PuronR refrigerant, use only factory authorized TXVs.
See Fig. 15 for a typical piping schematic.
CAPILLARY TUBE
DIAPHRAGM
PUSHRODS
FEEDER TUBES
INLET
COIL
OUTLET
NEEDLE
VALVE
SPRING
DISTRIBUTOR
BULB
EXTERNAL EQUALIZER TUBE
C12046
Fig. 17 - Thermostatic Expansion Valve (TXV) Operation
13
50HCQ
Because Puron (R-- 410A) refrigerant is a blend, it is
strongly recommended that refrigerant always be removed
from the cylinder as a liquid. Add liquid refrigerant into
the system in the discharge line. If adding refrigerant into
the suction line, use a commercial metering/expansion
device at the gauge manifold; remove liquid from the
cylinder, pass it through the metering device at the gauge
set and then pass it into the suction line as a vapor. Do not
remove Puron (R-- 410A) refrigerant from the cylinder as a
vapor.
Replacing TXV
!
CAUTION
50HCQ
PERSONAL INJURY HAZARD
Failure to follow this caution can result in injury to
personnel and damage to components.
Always wear approved safety glasses, work gloves
and other recommended Personal Protective
Equipment (PPE) when working with refrigerants.
THERMAL EXPANSION
(TXV) VALVE
1. Recover refrigerant.
2. Remove TXV support clamp using a 5/l6-in. nut
driver.
3. Remove TXV using a backup wrench on connections
to prevent damage to tubing.
4. Remove equalizer tube from suction line of coil. Use
file or tubing cutter to cut brazed equalizer line
approximately 2 inches above suction tube.
5. Remove bulb from vapor tube inside cabinet.
6. Install the new TXV and avoid damaging the tubing
or the valve when attaching the TXV to the
distributor.
7. Attach equalizer tube to suction line. If coil has
mechanical connection, then use wrench and back up
wrench to attach. If coil has brazed connection, use
file or tubing cutters to remove mechanical flare nut
from equalizer line. Then use coupling to braze the
equalizer line to stub (previous equalizer line) in
suction line.
8. Attach TXV bulb in the same location as original (in
the sensing bulb indent), wrap bulb in protective
insulation and secure using the supplied bulb clamp.
See Fig. 18.
9. Route equalizer tube through suction connection
opening (large hole) in fitting panel and install fitting
panel in place.
10. Sweat inlet of TXV marked “IN” to liquid line. Avoid
excessive heat which could damage valve.
CLAMP
TXV SENSING
BULB
SENSING BULB INSULATION REMOVED FOR CLARITY
C12095
Fig. 18 - TXV Valve and Sensing Bulb
14
COOLING CHARGING CHARTS
How To Use Cooling Charging Charts:
Take the outdoor ambient temperature and read the
suction pressure gauge. Refer to chart to determine what
suction temperature should be. If suction temperature is
high, add refrigerant. If suction temperature is low,
carefully recover some of the charge. Recheck the suction
pressure as charge is adjusted.
A04
A05
A06
A07
D08
D09
D12
NOMINAL TONS
REFERENCE
3
4
5
6
7.5
8.5
10
50HCQ
SIZE DESIGNATION
EXAMPLE:
Model 50TCQ*D14
Outdoor Temperature . . . . . . . . . . . . . . . . . . 85_F (29_C)
Suction Pressure . . . . . . . . . . . . . . . . . 140 psig (965 kPa)
Suction Temperature . . . . . . . . . . . . . . . . . . 55_ F (13_C)
Refer to Fig. 19 through Fig. 26 for Cooling Charging
Charts.
Compressors
Lubrication:
Compressors are charged with the correct amount of oil at
the factory.
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution can result in damage to
components.
The compressor is in a Puron (R-- 410A) refrigerant
system and uses a polyolester (POE) oil. This oil is
extremely hygroscopic, meaning it absorbs water
readily. POE oils can absorb 15 times as much water
as other oils designed for HCFC and CFC refrigerants.
Avoid exposure of POE oil to the atmosphere. This
exposure to the atmosphere can cause contaminants
that are harmful to R-- 410A components to form.
Keep POE oil containers closed until ready for use.
15
COOLING CHARGING CHARTS
CHARGING CHART - R410A REFRIGERANT
COOLING MODE - OUTDOOR FAN MUST BE RUNNING
Outdoor Coil Leaving Temperature, (Degrees °F)
120
Add Charge if Above the Curve
100
80
60
Remove Charge if Below the Curve
40
20
150
200
250
300
350
400
450
500
550
600
Compressor Discharge Pressure (psig)
C12016
Fig. 19 - Cooling Charging Charts-- 50HCQA04
CHARGING CHART - R410A REFRIGERANT
COOLING MODE - OUTDOOR FAN MUST BE RUNNING
140
Outdoor Coil Leaving Temperature, (Degrees °F)
50HCQ
140
120
Add Charge if Above the Curve
100
80
60
Remove Charge if Below the Curve
40
20
150
200
250
300
350
400
450
500
550
600
Compressor Discharge Pressure (psig)
C12017
Fig. 20 - Cooling Charging Charts - 50HCQA05
16
CHARGING CHART - R410A REFRIGERANT
COOLING MODE - OUTDOOR FAN MUST BE RUNNING
120
Add Charge if Above the Curve
100
80
50HCQ
Outdoor Coil Leaving Temperature, (Degrees °F)
140
60
Remove Charge if Below the Curve
40
20
150
200
250
300
350
400
450
500
550
600
Compressor Discharge Pressure (psig)
C12018
Fig. 21 - Cooling Charging Charts - 50HCQA06
CHARGING CHART - R410A REFRIGERANT
COOLING MODE - OUTDOOR FAN MUST BE RUNNING
Outdoor Coil Leaving Temperature, (Degrees °F)
140
120
Add Charge if Above the Curve
100
80
60
Remove Charge if Below the Curve
40
20
150
200
250
300
350
400
450
500
550
600
Compressor Discharge Pressure (psig)
C12019
Fig. 22 - Cooling Charging Charts - 50HCQA07
17
CHARGING CHART - R410A REFRIGERANT
COOLING MODE - OUTDOOR FAN MUST BE RUNNING
Outdoor Coil Leaving Temperature, (Degrees °F)
120
Add Charge if Above the Curve
100
80
60
Remove Charge if Below the Curve
40
20
150
200
250
300
350
400
450
500
550
600
Compressor Discharge Pressure (psig)
C12020
Fig. 23 - Cooling Charging Charts - 50HCQD08
CHARGING CHART - R410A REFRIGERANT
COOLING MODE - OUTDOOR FAN MUST BE RUNNING
140
Outdoor Coil Leaving Temperature, (Degrees °F)
50HCQ
140
120
Add Charge if Above the Curve
100
80
60
Remove Charge if Below the Curve
40
20
150
200
250
300
350
400
450
500
550
600
Compressor Discharge Pressure (psig)
C12021
Fig. 24 - Cooling Charging Charts - 50HCQD09
18
CHARGING CHART - R410A REFRIGERANT
COOLING MODE - OUTDOOR FAN MUST BE RUNNING
120
Add Charge if Above the Curve
100
80
50HCQ
Outdoor Coil Leaving Temperature, (Degrees °F)
140
60
Remove Charge if Below the Curve
40
20
150
200
250
300
350
400
450
500
550
600
Compressor Discharge Pressure (psig)
C12022
Fig. 25 - Cooling Charging Charts - 50HCQD12 Circuit A
CHARGING CHART - R410A REFRIGERANT
COOLING MODE - OUTDOOR FAN MUST BE RUNNING
Outdoor Coil Leaving Temperature, (Degrees °F)
140
120
Add Charge if Above the Curve
100
80
60
Remove Charge if Below the Curve
40
20
150
200
250
300
350
400
450
500
550
600
Compressor Discharge Pressure (psig)
C12023
Fig. 26 - Cooling Charging Charts - 50HCQD12 Circuit B
19
Replacing Compressor
!
WARNING
50HCQ
FIRE, EXPLOSION HAZARD
Failure to follow this
warning could result in
death, serious personal
injury and/or property
damage.
Never use air or gases containing oxygen for leak testing
or for operating refrigerant compressors. Pressurized
mixtures of air or gases containing oxygen can lead to an
explosion.
CAUTION
INSTALLATION SITE DAMAGE
Failure to follow this caution can result in damage to
equipment location site.
SPuron (R-- 410A) refrigerant contains polyolester
(POE) oil that can damage the roof membrane.
Caution should be taken to prevent POE oil from
spilling onto the roof surface.
SThe factory also recommends that the suction and
discharge lines be cut with a tubing cutter instead of
using a torch to remove brazed fittings.
2. Energize the compressor.
3. The suction pressure should drop and the discharge
pressure should rise, as is normal on any start-- up.
NOTE: If the suction pressure does not drop and the
discharge pressure does not rise to normal levels:
4. Note that the evaporator fan is probably also rotating
in the wrong direction.
5. Turn off power to the unit.
6. Reverse any two of the three unit power leads.
7. Reapply electrical power to the compressor.
8. The suction pressure should drop and the discharge
pressure should rise which is normal for scroll
compressors on start-- up.
9. Replace compressor if suction/discharge pressures are
not within specifications for the specific compressor.
Filter Drier
Replace the Filter Drier whenever refrigerant system is
exposed to atmosphere. Only use factory specified
liquid-- line filter driers with working pressures no less
than 650 psig (4482 kPa).
CAUTION
EQUIPMENT DAMAGE
Failure to follow this caution can result in equipment
damage.
Do not install a suction-- line filter drier in liquid line.
A liquid-- line filter drier designed for use with Puron
refrigerant is required on every unit.
NOTE: Only factory-- trained service technicians should
remove and replace compressor units.
Compressors using Puron refrigerant contain a polyolester
(POE) oil. This oil has a high affinity for moisture. Do not
remove the compressor’s tube plugs until ready to insert
the unit suction and discharge tube ends.
Outdoor Fan Location
See Fig. 27.
Compressor Rotation:
1. Shut off unit power supply. Apply lockout/tagout
procedures.
2. Remove condenser-- fan assembly (grille, motor, and
fan).
3. Loosen fan hub setscrews.
4. Adjust fan height as shown in Fig. 27.
5. Tighten setscrews to 84 in-- lbs (9.5 Nm).
6. Replace condenser-- fan assembly.
CAUTION
EQUIPMENT DAMAGE
Failure to follow this caution can result in equipment
damage.
Scroll compressors can only compress refrigerant if
rotating in the right direction. Reverse rotation for
extended times can result in internal damage to the
compressor. Scroll compressors are sealed units and
cannot be repaired on site location.
Conduit
NOTE: When the compressor is rotating in the wrong
direction, the unit makes an elevated level of noise and
does not provide cooling.
On 3-- phase units with scroll compressors, it is important
to be certain compressor is rotating in the proper
direction. To determine whether or not compressor is
rotating in the proper direction:
1. Connect service gauges to suction and discharge
pressure fittings.
0.14 in + 0.0 / -0.03
C08448
Fig. 27 - Outdoor Fan Adjustment
Troubleshooting Cooling System
Refer to Table 6, on the following page, for additional
troubleshooting topics.
20
Table 6 – Heating and Cooling Troubleshooting
CAUSE
REMEDY
Power failure.
Call power company.
Fuse blown or circuit breaker tripped.
Replace fuse or reset circuit breaker. Determine root cause.
Defective thermostat, contactor, transformer,
control relay, or capacitor.
Replace component.
Insufficient line voltage.
Determine cause and correct.
Incorrect or faulty wiring.
Check wiring diagram and rewire correctly.
Thermostat setting too high.
Lower thermostat setting below room temperature.
High pressure switch tripped.
See problem ‘‘Excessive head pressure.’’
Low pressure switch tripped.
Check system for leaks. Repair as necessary.
Freeze-up protection thermostat tripped.
See problem ‘‘Suction pressure too low.’’
Faulty wiring or loose connections in compressor
circuit.
Check wiring and repair or replace.
Compressor motor burned out, seized, or
internal overload open.
Determine cause. Replace compressor or allow enough time for
internal overload to cool and reset.
Defective run/start capacitor, overload, start
relay.
Determine cause and replace compressor.
One leg of 3-phase power dead.
Replace fuse or reset circuit breaker. Determine cause.
Refrigerant overcharge or undercharge.
Recover refrigerant, evacuate system, and recharge to nameplate.
Defective compressor.
Replace and determine cause.
Insufficient line voltage.
Determine cause and correct.
Blocked outdoor coil or dirty air filter.
Determine cause and correct.
Defective run/start capacitor, overload, or start
relay.
Determine cause and replace.
Defective thermostat.
Replace thermostat.
Faulty outdoor-fan (cooling) or indoor-fan
(heating) motor or capacitor.
Replace.
Restriction in refrigerant system.
Locate restriction and remove.
Dirty air filter.
Replace filter.
Unit undersized for load.
Decrease load or increase unit size.
Thermostat set too low (cooling).
Reset thermostat.
Low refrigerant charge.
Locate leak; repair and recharge.
Air in system.
Recover refrigerant, evacuate system, and recharge.
Outdoor coil dirty or restricted.
Clean coil or remove restriction.
Compressor Makes
Excessive Noise.
Compressor rotating in the wrong direction.
Reverse the 3-phase power leads as described in
Start-Up.
Excessive Head
Pressure.
Dirty outside air or return air filter (heating).
Replace filter.
Dirty outdoor coil (cooling).
Clean coil.
Refrigerant overcharged.
Recover excess refrigerant.
Air in system.
Recover refrigerant, evacuate system, and recharge.
Condensing air restricted or air short-cycling.
Determine cause and correct.
Low refrigerant charge.
Check for leaks; repair and recharge.
Compressor scroll plates defective.
Replace compressor.
Restriction in liquid tube.
Remove restriction.
High heat load.
Check for source and eliminate.
Compressor scroll plates defective.
Replace compressor.
Refrigerant overcharged.
Recover excess refrigerant.
Dirty air filter (cooling).
Replace filter.
Dirty or heavily iced outdoor coil (heating).
Clean outdoor coil. Check defrost cycle operation.
Low refrigerant charge.
Check for leaks; repair and recharge.
Metering device or low side restricted.
Remove source of restriction.
Insufficient indoor airflow (cooling mode).
Increase air quantity. Check filter and replace if necessary.
Temperature too low in conditioned area.
Reset thermostat.
Field-installed filter drier restricted.
Replace.
Outdoor ambient below 25_F (cooling).
Install low-ambient kit.
Outdoor fan motor(s) not operating (heating).
Check fan motor operation.
Compressor Will Not
Start But Outdoor
Fan Runs.
Compressor Cycles
(Other Than
Normally Satisfying
Thermostat).
Compressor Operates
Continuously.
Head Pressure
Too Low.
Excessive Suction
Pressure.
Suction Pressure
Too Low.
21
50HCQ
PROBLEM
Compressor and
Outdoor Fan
Will Not Start.
CONVENIENCE OUTLETS
!
slots and align with the gasket; tighten the two screws
until snug (do not over-tighten).
4. Mount the weatherproof cover to the backing plate as
shown in Fig. 29.
5. Remove two slot fillers in the bottom of the cover to
permit service tool cords to exit the cover.
6. Check cover installation for full closing and latching.
WARNING
GFCI RECEPTACLE
NOT INCLUDED
COVER - WHILE-IN-USE
WEATHERPROOF
P
TO
TOP
Convenience Outlets: Two types of convenience outlets are
offered on 50HCQ models: Non--powered and unit--powered.
Both types provide a 125VAC/15A Ground--Fault Circuit
Interrupter (GFCI) duplex receptacle behind a hinged
waterproof access cover, located on the end panel of the
unit. See Fig. 28.
TOP
WET LOCATIONS
50HCQ
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits can use
multiple disconnects. Check convenience outlet for
power status before opening unit for service. Locate
its disconnect switch, if appropriate, and open it.
Apply lockout/tagout to this switch, if necessary.
WET LO
CATIO
NS
GASKET
PWD-CO TRANSFORMER
CONVENIENCE
OUTLET GFCI
BASEPLATE FOR
GFCI RECEPTACLE
C09022
Fig. 29 - Weatherproof Cover Installation
Non-- powered type — This type requires the field
installation of a general-- purpose 125VAC/15AC circuit
powered from a source elsewhere in the building. Observe
national and local codes when selecting wire size, fuse or
breaker requirements and disconnect switch size and
location. Route 125VAC power supply conductors into the
bottom of the utility box containing the duplex receptacle.
PWD-CO FUSE
SWITCH
CONTROL BOX
ACCESS PANEL
C08128
Fig. 28 - Convenience Outlet Location
Installing Weatherproof Cover —
A weatherproof while-in-use cover for the factory
installed convenience outlets is now required by UL
standards. This cover cannot be factory-mounted due its
depth. The cover must be installed at unit installation. For
shipment, the convenience outlet is covered with a blank
cover plate.
The weatherproof cover kit is shipped in the unit’s control
box. The kit includes the hinged cover, a backing plate
and gasket.
NOTE: DISCONNECT ALL POWER TO UNIT AND
CONVENIENCE OUTLET. Use approved lockout/tagout
procedures.
1. Remove the blank cover plate at the convenience
outlet; discard the blank cover.
2. Loosen the two screws at the GFCI duplex outlet,
until approximately 1/2-in (13 mm) under screw heads
are exposed.
3. Press the gasket over the screw heads. Slip the
backing plate over the screw heads at the keyhole
Unit-- powered type — A unit-- mounted transformer is
factory-- installed to step-- down the main power supply
voltage to the unit to 115VAC at the duplex receptacle.
This option also includes a manual switch with fuse,
located in a utility box and mounted on a bracket behind
the convenience outlet; access is through the unit’s control
box access panel. See Fig. 28.
The primary leads to the convenience outlet transformer
are not factory-- connected. Selection of primary power
source is a customer-- option. If local codes permit, the
transformer primary leads can be connected at the
line-- side terminals on the unit-- mounted non-- fused
disconnect or HACR breaker switch. This will provide
service power to the unit when the unit disconnect switch
or HACR switch is open. Other connection methods will
result in the convenience outlet circuit being de-- energized
when the unit disconnect or HACR switch is open. See
Fig. 30.
Duty Cycle — the unit-- powered convenience outlet has a
duty cycle limitation. The transformer is intended to
provide power on an intermittent basis for service tools,
lamps, etc; it is not intended to provide 15 amps loading
for continuous duty loads (such as electric heaters for
overnight use). Observe a 50% limit on circuit loading
above 8 amps (i.e., limit loads exceeding 8 amps to 30
minutes of operation every hour).
22
The CTB contains no software and no logic. But it does
include seven configuration jumpers that are cut to
configure the board to read external optional and
accessory controls, including that the unit is a heat pump.
CUT FOR
REHEAT/HP
W1
Y2
Y2
Y1
Y1
R
R
T-STAT
LPS
CIRCUIT 2
CIRCUIT 1
HPS
HPS
C08232
Table 7 – Jumper Configuration
Jumper
JMP1
JMP2
JMP3
JMP4
JMP5
JMP6
JMP7
Control Function
Phase Monitor
Occupancy Control
Smoke Detector Shutdown
Remote Shutdown
Heat Pump / Reheat
Heat Pump / Reheat
Heat Pump / Reheat
Note
50HCQ default: Cut
50HCQ default: Cut
50HCQ default: Cut
Jumpers JMP5, JMP6 and JMP7 are located in notches
across the top of the CTB. See Fig. 31. These jumpers are
factory cut on all heat pump units. Visually check these
jumpers to confirm that they have been cut.
Central Terminal Board
The Central Terminal Board (CTB) is a large printed
circuit board that is located in the center of the unit
control box. This printed circuit board contains multiple
termination strips and connectors to simplify factory
control box wiring and field control connections.
Terminals are clearly marked on the board surface. See
Fig 31.
W 24V
FOR
I OUT CUT
SMOKE
R
DETECTOR
I
I
N
G
C
Fig. 31 - Central Terminal Board (CTB)
The Fuse on the powered type — The factory fuse is a
Cooper Bussmann Fusetron T-- 15, non-- renewable
screw-- in (Edison base) type plug fuse.
HEAT PUMP CONTROLS
DOWN
LPS
Maintenance — Periodically test the GFCI receptacle by
pressing the TEST button on the face of the receptacle.
This should cause the internal circuit of the receptacle to
trip and open the receptacle. Check for proper grounding
wires and power line phasing if the GFCI receptacle does
not trip as required. Press the RESET button to clear the
tripped condition.
U
N REMOTE
I SHUTDOWN
T
S
H
U
T
D
O
W SMOKE
N SHUT-
SMOKE ALARM
Fig. 30 - Powered Convenience Outlet Wiring
Using unit-- mounted convenience outlets — Units with
unit-- mounted convenience outlet circuits will often
require two disconnects be opened to de-- energize all
power to the unit. Treat all units as electrically energized
until the convenience outlet power is also checked and
de-- energization is confirmed. Observe National Electrical
Code Article 210, Branch Circuits, for use of convenience
outlets.
C
U
T
F
O
R
OCCUPANCY
R
H1
H2
CUT FOR
REMOTE
SHUTDOWN
50HCQ
W1
CUT
FOR PMR
PMR
L1: RED
L2: GRA
W2
CLO/COMP
600
W2
CONTROL BOARD
575
G
REHEAT/HP
480
TRANSFORMER
TERMINALS
H1 + H3
H2 + H4
H1
H2 + H3
H4
G
DDC T-STAT
460
240
PRIMARY
CONNECTIONS
L1: RED +YEL
L2: BLU + GRA
L1: RED
Splice BLU + YEL
L2: GRA
C
SAT/OAT
CONNECT
AS
C
DDC
UNIT
VOLTAGE
208,
230
X
ECON
CO8283
X
CLO/COMP
CUT FOR
REHEAT/HP
PROTECTIVE CONTROLS
Compressor Protection
Over-- current
The compressor has internal line-- break motor protection.
Over-- temperature:
The compressor has an internal protector to protect it
against excessively high discharge gas temperatures.
23
50HCQ
High Pressure Switch:
The system is provided with a high pressure switch
mounted on the discharge line. The switch is
stem-- mounted and brazed into the discharge tube. Trip
setting is 630 psig  10 psig (4344  69 kPa) when hot.
Reset is automatic at 505 psig (3482 kPa).
unit-- duct system increases and to INCREASE when the
static pressure in the unit-- duct system decreases (and fan
airflow rate increases). Motor overload conditions
typically develop when the unit is operated with an access
panel removed, with unfinished duct work, in an
economizer-- open mode, or a leak develops in the duct
system that allows a bypass back to unit return opening.
Loss of Charge Switch:
Outdoor Fan Motor Protection:
The system is protected against a loss of charge and low
evaporator coil loading condition by a loss of charge
switch located on the liquid line and a freeze protection
thermostat on the indoor coil. The switch is
stem-- mounted. Loss of Charge Switch trip setting is
27 psig  3 psig (186  21 kPa). Reset is automatic at 44 
3 psig (303  21 kPa).
The outdoor fan motor is internally protected against
over-- temperature.
Freeze Protection Thermostat trip setting is 30_F  5_F
(-- 1_C  3_C). Reset is automatic at 45_F  5_F (7_C
3_C).
Supply (Indoor) Fan Motor Protection:
Disconnect all electrical power and apply appropriate
Lock-- out/Tagout procedures when servicing the fan
motor.
Motors are equipped with an over-- temperature device
(Thermik), internal line break, external circuit breaker or
electronic controlled circuits for overload protection. All
protection schemes are automatically reset except for
units having the 2-- speed indoor fan option (VFD) or
external circuit breakers. These two protection schemes
are classified as manual reset. The type of device depends
on several factors including motor size, voltage and other
options in the unit (i.e. VFD).
The Thermik device is a snap-- action over-- temperature
protection device that is imbedded in the motor windings.
It is also a pilot-- circuit device that is wired into the unit’s
24V control circuit. When this device reaches its trip set
point, it opens the 24V control circuit and causes all unit
operation to stop. This device resets automatically when
the motor windings cool. Do not bypass this device to
correct trouble. Determine the cause of the problem and
correct it.
The
External
motor
overload
device
is a
specially-- calibrated circuit breaker that is UL recognized
as a motor overload controller. It is an over-- current
device. When the motor current exceeds the circuit
breaker set point, the device opens all motor power leads
and the motor shuts down. Reset requires a manual reset
at the overload switch. This device (designated IFCB) is
located on the side of the supply fan housing, behind the
fan access panel.
Troubleshooting supply fan motor overload trips —
The supply fan used in the 50HCQ units is a
forward-- curved centrifugal wheel. At a constant wheel
speed, this wheel has a characteristic that causes the fan
shaft load to DECREASE when the static pressure in the
Control Circuit, 24V
The control circuit is protected against over-- current
conditions by a circuit breaker mounted on control
transformer TRAN. The Control Circuit is reset manually.
COMMERCIAL DEFROST CONTROL
The Commercial Defrost Control Board (DFB)
coordinates thermostat demands for supply fan control, 1
or 2 stage cooling, 2 stage heating, emergency heating and
defrost control with unit operating sequences. The DFB
also provides an indoor fan off delay feature (user
selectable). See Fig. 32 for board arrangement.
DIP
Switches
Speed-Up
Jumpers
C09275
Fig. 32 - Defrost Control Board Arrangement
The DFB is located in the 50HCQ’s main control box (see
Fig. 33). All connections are factory-- made through
harnesses to the unit’s CTB, to IFC (belt-- drive motor) or
to ECM (direct-- drive motor), reversing valve solenoids
and to defrost thermostats. Refer to Table 8 for details of
DFB Inputs and Outputs. Detailed unit operating
sequences are provided in the Operating Sequences
section starting on page 72.
24
C09276
Fig. 33 - Defrost Control Board Location
Point Name
G Fan
Y1 Cool 1
Y2 Cool 2
W1 Heat 1
W2 Heat 2
R Power
C Common
DFT1
DFT 2
Table 8 – 50HCQ Defrost Board I/O and Jumper Configurations
Type of I/O
DI, 24Vac
DI, 24Vac
DI, 24Vac
DI, 24Vac
DI, 24Vac
24Vac
24Vac
DI, 24Vac
DI, 24Vac
Connection Pin Number
P2--- 3
P2--- 5
P2--- 4
P2--- 7
P2--- 6
P3--- 1
P3--- 2
DFT--- 1 to DFT--- 1
DFT--- 2 to DFT--- 2
Unit Connection
LCTB--- G
LCTB--- Y1
LCTB--- Y2
LCTB--- W1
LCTB--- W2
CONTL BRD--- 8
CONTL BRD--- 4
Note
Type of I/O
DO, 24Vac
DO, 24Vac
DO, 24Vac
DO, 24Vac
DO, 24Vac
DO, 24Vac
DO, 24Vac
24Vac
Connection Pin Number
P3--- 9
OF
P3--- 7 to P3--- 5
P3--- 6 to P3--- 4
P3--- 10
P3--- 8
E--- HEAT
P3--- 3
Unit Connection
REHEAT--- 2
OFR
Note
Type of I/O
24Vac
24Vac
Connection Pin Number
P1--- 1
P1--- 3
Unit Connection
Connection Pin Number
JMP17
JMP18
Unit Connection
Outputs
Point Name
IFO Fan On
OF OD Fan On
RVS1
RVS2
COMP 1
COMP 2
HEAT 2
COM
Energize in COOL
Energize in COOL
FPT --- REHEAT--- 6
REHEAT--- 8
HC --- 1 (TB4--- 1)
HC --- 1 (TB4--- 3)
Configuration
Point Name
Select Jumper
2 Compressor
Note
Use for 50HCQD
Speed-- Up Configuration
Point Name
Speed --- Up Jumper
Speed --- Up Jumper
Type of I/O
Note
Jumper for 1--3 seconds: Factory Test, defrost runs for 9 seconds
Jumper for 5--20 seconds: Forced Defrost, defrost runs for 30 seconds if DFT2 is open
Reversing valve control — The DFB has two outputs for
unit reversing valve control. Operation of the reversing
valves is based on internal logic; this application does not
use an “O” or “B” signal to determine reversing valve
position. Reversing valves are energized during the
cooling stages and the defrost cycle and de-- energized
during heating cycles. Once energized at the start of a
cooling stage, the reversing valve will remain energized
until the next heating cycle demand is received. Once
de-- energized at the start of a Heating cycle, the reversing
valves will remain de-- energized until the next cooling
stage is initiated.
Compressor control — The DFB receives inputs
indicating Stage 1 Cooling, Stage 2 Cooling (sizes 08 12) and Stage 1 Heating from the space thermostat or unit
control system (PremierLink or RTU-- OPEN); it
generates commands to start compressors with or without
reversing valve operation to produce Stage 1 Cooling (one
compressor), Stage 2 Cooling (both compressors run) or
25
50HCQ
Inputs
50HCQ
Stage 1 Heating (both compressors run on 8-- 12 systems.
The 04-- 07 systems have only one compressor).
ice) or a 10 minute elapsed period expires, whichever
comes first.
Auxiliary (Electric) Heat control — The 50HCQ unit
can be equipped with one or two auxiliary electric heaters,
to provide a second stage of heating. The DFB will
energize this Heating System for a Stage 2 Heating
Command
(heaters
operate
concurrently
with
compressor(s) in the Stage 1 Heating cycle), for an
Emergency Heating sequence (compressors are off and
only the electric heaters are energized) and also during the
Defrost cycle (to eliminate a “cold blow” condition in the
space).
On sizes 08-- 12, Circuit 1’s defrost thermostat DFT1
(located on the upper circuit of the outdoor coil on 08-- 09
size and the outdoor coil with one bend on the - 12 size.)
cannot initiate a unit defrost cycle; only DFT2 can do this.
But once Circuit 2 is in defrost, the DFB will monitor the
status of DFT1. If DFT1 closes during a Circuit 2 defrost
cycle, Circuit 1 will also enter a defrost cycle. Circuit 1’s
defrost cycle will end when DFT1 opens (indicating the
upper portion of the outdoor coil is cleared of frost and
ice) or the Circuit 2 defrost cycle is terminated.
Defrost — The defrost control mode is a time/temperature
sequence. There are two time components: The
continuous run period and the test/defrost cycle period.
The temperature component is provided by Defrost
Thermostat 1 and 2 (DFT1 and DFT2 (A08-- D09 only)
mounted on the outdoor coil.
At the end of the unit defrost cycle, the unit will be
returned to Heating cycle for a full continuous run period.
The continuous run period is a fixed time period between
the end of the last defrost cycle (or start of the current
Heating cycle) during which no defrost will be permitted.
This period can be set at 30, 60, 90 or 120 minutes by
changing the positions of DIP switches SW1 and SW2
(see Fig. 34 and Table 9). The default run periods are 60
minutes for unit sizes 04-- 06, 30 minutes for unit size 07,
90 minutes for unit sizes 08-- 09 and 60 minutes for unit
size 12.
C09283
Fig. 34 - DIP Switch Settings — Defrost Board
At the end of the continuous run period, the defrost
control will test for a need to defrost. On unit sizes 04-- 07
(single compressor designs), DFT1 controls the start and
termination of the defrost cycle. If DFT1 is still open, the
defrost test/run window is closed and the control repeats
the continuous run period. If DFT1 is closed, the defrost
cycle is initiated. The defrost period will end when DFT1
opens (indicating the outdoor coil has been cleared of
frost and ice) or a 10 minute elapsed period expires,
whichever comes first.
If the space heating load is satisfied and compressor
operation is terminated, the defrost control will remember
where the run period was interrupted. On restart in
Heating, the defrost control will resume unit operation at
the point in the run period where it was last operating.
Defrost Thermostats — These are temperature switches
that monitor the surface temperature of the outdoor coil
circuits. These switches are mounted on the liquid tube
exiting the outdoor coil heating circuits. These switches
close on temperature drop at 30_F (-- 1_C) and reset open
on temperature rise at 80_F (27_C).
Indoor Fan Off Delay — The DFB can provide a 60 sec
delay on Indoor Fan Off if the thermostat’s fan selector
switch is set on AUTO control. DIP Switch SW3 on the
DFB selects use of the fan off time delay feature. Setting
SW3 in the OPEN position turns the Fan Off Delay
feature on; setting SW3 in the CLOSED position disables
this feature. The delay period begins when Y1 demand or
W1 demand by the space thermostat is removed.
Defrost Speedup Functions — The DFB permits the
servicer to speed-- up the defrost cycle. There are two
speed-- up sequences: relative speed-- up and an immediate
forced defrost. Speed-- up sequences are initiated by
shorting jumper wires JMP17 and JMP18 together (see
Fig. 32); use a flat-- blade screwdriver.
Shorting the jumpers for a period of 1 to 3 seconds
reduces the defrost timer periods by a factor of 0.1
sec/minute. (For example, the 90 minute run period is
reduced to 9 seconds) The DFB will step the unit through
a Heating cycle and a Defrost cycle using these reduced
time periods. This mode ends after the Defrost cycle.
On unit sizes 08 and 12 (two circuit designs), DFT2
(located on the bottom circuit of the outdoor coil on the
08-- 09 size and the outdoor coil with two bends on the 12
size) controls the start and termination of the defrost
cycle. If DFT2 is still open, the defrost test/run window is
closed and the control repeats the continuous run period.
If DFT2 is closed, the defrost cycle is initiated in Circuit
2. The defrost period will end when DFT2 opens
(indicating the outdoor coil has been cleared of frost and
26
Table 9 – Dip Switch Position
Switch No.
2
0
1
1
J
J
90 minutes
0
2
J
J
1
1
2
1
J
0
60 minutes
ELECTRIC HEATERS
2
J
0
J
30 minutes
Shorting the jumpers for a period of 5 to 20 secs bypasses
the remaining continuous run period and places the unit in
a Forced Defrost mode. If the controlling DFT is closed
when this mode is initiated, the unit will complete a
normal defrost period that will terminate when the
controlling DFT opens or the 10 minute defrost cycle limit
is reached. If the controlling DFT is open when this mode
is initiated, the Defrost cycle will run for 30 secs. Both
modes end at the end of the Defrost cycle.
1
J
3
1
0
120 minutes
On
J
Off
Fan Delay
Unit heaters are marked with Heater Model Numbers.
However, heaters are ordered as and shipped in cartons
marked with a corresponding heater Sales Package part
number. See Table 10 for correlation between heater
Model Number and Sales Package part number.
NOTE: The value in position 9 of the part number differs
between the sales package part number (value is 1) and a
bare heater model number (value is 0).
DISCONNECT
MOUNTING
LOCATION
EMT OR RIGID CONDUIT SINGLE
(FIELD-SUPPLIED)
POINT BOX
CENTER MANUAL RESET
POST
LIMIT SWITCH
HEATER
COVERS
50HCQ units can be equipped with field-- installed
accessory electric heaters. The heaters are modular in
design, with heater frames holding open coil resistance
wires strung through ceramic insulators, line-- break limit
switches and a control contactor. One or two heater
modules can be used in a unit.
DISCONNECT MOUNTING
LOCATION
SINGLE POINT
MAIN
BRACKET AND BOX
HEATER
HEATER
HEATER
CONTROL CONDUIT
MOUNTING
MODULE
MODULE
MOUNTING
BOX
DRIP BOOT
SCREW
(LOCATION 1) (LOCATION 2) BRACKET
CONTROL WIRE TERMINAL BLOCK
C08134
Fig. 36 - Typical Component Location
UNIT BLOCK-OFF
PANEL
OUTDOOR
ACCESS PANEL
INDOOR
ACCESS
PANEL
C08133
Fig. 35 - Typical Access Panel Location (3-- 6 Ton)
TRACK
Heater modules are installed in the compartment below
the indoor (supply) fan outlet. Access is through the
indoor access panel. Heater modules slide into the
compartment on tracks along the bottom of the heater
opening. See Fig. 35, Fig. 36 and Fig. 37.
Not all available heater modules can be used in every unit.
Use only those heater modules that are UL listed for use
in a specific size unit. Refer to the label on the unit
cabinet re approved heaters.
FLANGE
C08135
Fig. 37 - Typical Module Installation
27
50HCQ
1
1
Bare Heater Model Number
C
R
H
E
A
T
E
R
0
0
1
A
0
0
Heater Sales Package PNO
Includes:
Bare Heater
Carton and packing materials
Installation sheet
C
R
H
E
A
T
E
R
1
0
1
A
0
0
Single Point Boxes and Supplementary Fuses — When
the unit MOCP device value exceeds 60A, unit-- mounted
supplementary fuses are required for each heater circuit.
These fuses are included in accessory Single Point Boxes,
with power distribution and fuse blocks. The single point
box will be installed directly under the unit control box,
just to the left of the partition separating the indoor
section (with electric heaters) from the outdoor section.
The Single Point Box has a hinged access cover. See
Fig. 38.
21
11
23
13
Single
Point Box
Field Power Connections — Tap conductors must be
installed between the base unit’s field power connection
lugs and the Single Point Box (with or without fuses). See
Fig. 38. Refer to unit wiring schematic. Use copper wire
only. For connection using the single point box without
fuses, connect the field power supply conductors to the
heater power leads and the field-- supplied tap conductors
inside the Single Point Box. Use UL approved pressure
connectors (field-- supplied) for these splice joints.
21 23
Field Power
Connections
pilot-- circuit/manual reset limit switch to protect the unit
against over-- temperature situations.
Line-- break/auto-- reset limit switches are mounted on the
base plate of each heater module. See Fig. 39. These are
accessed through the indoor access panel. Remove the
switch by removing two screws into the base plate and
extracting the existing switch.
Pilot-- circuit/manual reset limit switch is located in the
side plate of the indoor (supply) fan housing. See Fig. 36
and Fig 39.
Completing Heater Installation
11 13
ALLIED
PAC
O
R
P
.
MO
DELNO. O
ERI
ALNO. D
ISTED
AIR
NDITIONING
1 22.2
UIP
ACCESS
23 3
346N.
P/ 2
N-5610
-4 REV
Hinged
Cover
PILOT--- CIRCUIT/MANUAL
RESET LIMIT SWITCH
C11490
LINE--- BREAK
LIMIT SWITCHES
23
13
On 50HCQ units, all fuses are 60A. Single point boxes
containing fuses for 208/230V applications use UL Class
RK5 250V fuses (Bussmann FRNR 60 or Shawmut TR
60R). Single point boxes for 460V and 575V applications
use UL Class T 600V fuses (Bussmann JJS 60 or
Shawmut A6T 60). (Note that all heaters are qualified for
use with a 60A fuse, regardless of actual heater ampacity,
so only 60A fuses are necessary.)
On 07 - 09 size units, unit heater applications not
requiring supplemental fuses require a special Single
Point Box without any fuses. Connect power supply
conductors to heater conductors and field-- supplied base
unit power tap leads (see text below re: “Completing
Heater Installation”) inside the empty Single Point Box
using UL-- approved connectors.
Safety Devices — Electric heater applications use a
combination of line-- break/auto-- reset limit switches and a
21
Fig. 38 - Typical Single Point Installation
11
50HCQ
Table 10 – Heater Model Number
ALLIEDPAC
O
RP
.
MODELNO. OD
ERIA
LNO.
ISTED
AIR3 1 22.2
NDITIONING
UIP
2 3
ACCESS
346N.
P/ N
2-- 5610
-4 REV
C11489
Fig. 39 - Typical Location of Heater Limit Switches
(3-- phase heater shown)
Low-- Voltage Control Connections — Pull the
low-- voltage control leads from the heater module(s). The
50HCQ units use a various number of control wires,
colors and terminal boards depending on voltage and unit
28
size. See Fig. 40 through Fig. 43 and the unit wiring
diagram for proper placement.
CB
24V
3.2 AMPS
TRAN1 FROM POWER SCHEMATIC
24V
GRN/
YEL
BRN
BRN
24V
RED
24V
3.2 AMPS
RED
DEFROST
BOARD
5
TRAN2 FROM POWER SCHEMATIC
CB
BRN
GRN/
YEL
ORN
1 EHR 0
BRN
VIO
1 OFR 0
BRN
3
BRN
24V
BRN
24V
EHR
RED
ORN
P3-3
BRN
6
ORN
ORN
NOTE 4
AND 6
RED
BLK
TB4
ELECTRIC
BRN
HEAT(ACCESSORY)
SEE HEATER LABEL DIAGRAM
FPT
BLK
BRN
BRN
TB4
ORN
BRN
1
3
VIO
C10561
Fig. 42 - TB4 Wiring (HP Only)
BRN BRN
VIO
Field
Connections
NOTE:
Optional Outdoor Temperature Control
at One Heater Stage –
Move heater wire to this terminal and
connect outdoor temperature switch
between 2nd and 3rd terminals.
W2 Use
Elec Htr
VIO HR2
BRN
HR1
BRN
VIO
HR1: On Heater 1 in Position #1
HR2: On Heater 2 in Position #2 (if installed)
C11554
Fig. 40 - Accessory Electric Heater Control
Connections (HP-- 2, Size 06, 575V Only)
R Use
C Use
C10604
Fig. 43 - TB4 Terminal Use (HP Only)
DEFROST
BOARD
E-HEAT
ORN
P3-3
BRN
TB4
ORN
BRN
1
3
VIO
BRN BRN
VIO
Field
Connections
Elec Htr
VIO HR2
BRN
HR1
BRN
VIO
HR1: On Heater 1 in Position #1
HR2: On Heater 2 in Position #2 (if installed)
C09013
Fig. 41 - Accessory Electric Heater Control
Connections (HP-- 1 Except Size 12 and 121, HP-- 2
Except Size 12)
29
50HCQ
E-HEAT
8
SMOKE DETECTORS
Smoke detectors are available as factory-- installed options
(FIOP) on 50HCQ models. Smoke detectors can be
specified for Supply Air only or for Return Air with or
without economizer or in combination of Supply Air and
Return Air. Return Air smoke detectors are arranged for
vertical return configurations only. All components
necessary for operation are factory-- provided and
mounted. The unit is factory-- configured for immediate
smoke detector shutdown operation; additional wiring or
modifications to unit terminal board can be necessary to
complete the unit and smoke detector configuration to
meet project requirements.
printed circuit board, a clear plastic cover, a sampling
tube inlet and an exhaust tube. The sampling tube (when
used) and exhaust tube are attached during installation.
The sampling tube varies in length depending on the size
of the rooftop unit. The clear plastic cover permits visual
inspections without having to disassemble the sensor. The
cover attaches to the sensor housing using four captive
screws and forms an airtight chamber around the sensing
electronics. Each sensor includes a harness with an RJ45
terminal for connecting to the controller. Each sensor has
four LEDs (for Power, Trouble, Alarm and Dirty) and a
manual test/reset button (on the left-- side of the housing).
50HCQ
System
The smoke detector system consists of a four-- wire
controller and one or two sensors. Its primary function is
to shut down the rooftop unit in order to prevent smoke
from circulating throughout the building. It is not to be
used as a life saving device.
Controller
Duct Smoke Sensor
Exhaust Tube
Exhaust Gasket
Sensor Housing
and Electronics
See Detail A
Intake
Gasket
The controller (see Fig. 44) includes a controller housing,
a printed circuit board, and a clear plastic cover. The
controller can be connected to one or two compatible duct
smoke sensors. The clear plastic cover is secured to the
housing with a single captive screw for easy access to the
wiring terminals. The controller has three LEDs (for
Power, Trouble and Alarm) and a manual test/reset button
(on the cover face).
Cover Gasket
(ordering option)
TSD-CO2
(ordering option)
Sensor Cover
Plug
Sampling Tube
(ordered separately)
Coupling
Detail A
Magnetic
Test/Reset
Switch
Alarm
Trouble
Duct Smoke Sensor
Controller
Power
Dirty
Fig. 45 - Smoke Detector Sensor
Conduit Nuts
(supplied by installer)
Conduit Support Plate
Controller Housing
and Electronics
Terminal Block Cover
Conduit Couplings
(supplied by installer)
Controller Cover
Fastener
(2X)
Cover Gasket
(ordering option)
Alarm
Trouble
Power
Test/Reset
Switch
C08208
Fig. 44 - Controller Assembly
C08209
Air is introduced to the duct smoke detector sensor’s
sensing chamber through a sampling tube that extends into
the HVAC duct and is directed back into the ventilation
system through a (shorter) exhaust tube. The difference in
air pressure between the two tubes pulls the sampled air
through the sensing chamber. When a sufficient amount of
smoke is detected in the sensing chamber, the sensor
signals an alarm state and the controller automatically
takes the appropriate action to shut down fans and
blowers, change over air handling systems, notify the fire
alarm control panel, etc.
The sensor uses a process called Differential Sensing to
prevent gradual environmental changes from triggering
false alarms. A rapid change in environmental conditions,
such as smoke from a fire, causes the sensor to signal an
alarm state but dust and debris accumulated over time
does not.
Sensor
The sensor (see Fig. 45) includes a plastic housing, a
30
For installations using two sensors, the duct smoke
detector does not differentiate which sensor signals an
alarm or trouble condition.
Smoke Detector Locations
50HCQ
Supply Air — The Supply Air smoke detector sensor is
located to the left of the unit’s indoor (supply) fan. See
Fig. 46. Access is through the fan access panel. There is
no sampling tube used at this location. The sampling tube
inlet extends through the side plate of the fan housing
(into a high pressure area). The controller is located on a
bracket to the right of the return filter, accessed through
the lift-- off filter panel.
face downward, into the return air stream. The sampling
tube is connected via tubing to the return air sensor that is
mounted on a bracket high on the partition between return
filter and controller location. (This sensor is shipped in a
flat-- mounting location. Installation requires that this
sensor be relocated to its operating location and the tubing
to the sampling tube be connected. See “Completing
Installation of Return Air Smoke Sensor” for installation
steps.)
Return Air
Sampling Tube
Smoke Detector Sensor
C08129
Fig. 48 - Return Air Sampling Tube Location
C08245
Fig. 46 - Typical Supply Air Smoke Detector Sensor
Location
Completing Installation of Return Air Smoke
Sensor
Return Air without Economizer — The sampling tube is
located across the return air opening on the unit base pan.
See Fig. 47. The holes in the sampling tube face
downward, into the return air stream. The sampling tube is
connected by tubing to the return air sensor that is
mounted on a bracket high on the partition between return
filter and controller location. (This sensor is shipped in a
flat-- mounting location. Installation requires that this
sensor be relocated to its operating location and the tubing
to the sampling tube be connected. See “Completing
Installation of Return Air Smoke Sensor” for installation
steps.)
FLEXIBLE EXHAUST TUBES
SCREWS
Return Air Detector module
(shipping position shown)*
SAMPLE TUBE
Controller module
C12049
Fig. 49 - Return Air Detector Shipping Position
1. Unscrew the two screws holding the Return Air
Sensor detector plate. See Fig. 49. Save the screws.
2. Remove the Return Air Sensor and its detector plate.
3. Rotate the detector plate so the sensor is facing
outwards and the sampling tube connection is on the
bottom. See Fig. 50.
4. Screw the sensor and detector plate into its operating
position using screws from Step 1. Make sure the
sampling tube connection is on the bottom and the
exhaust tube is on the top. See Fig. 50.
Return Air Detector Sampling Tube
*RA detector must be moved from shipping position to operating position by installer
C07307
Fig. 47 - Typical Return Air Detector Location
Return Air with Economizer — The sampling tube is
inserted through the side plates of the economizer
housing, placing it across the return air opening on the
unit base pan. See Fig. 48. The holes in the sampling tube
31
5. Connect the flexible tube on the sampling inlet to the
sampling tube on the base pan.
6. For units with an economizer, the sampling tube is
integrated into the economizer housing but the
connection of the flexible tubing to the sampling tube
is the same.
FIOP Smoke Detector Wiring and Response
All units: FIOP smoke detector is configured to
automatically shut down all unit operations when smoke
condition is detected. See Fig. 51, Typical Smoke
Detector System Wiring.
50HCQ
Highlight A: JMP 3 is factory-- cut, transferring unit
control to smoke detector.
Highlight B: Smoke detector NC contact set will open on
smoke alarm condition, de-- energizing the ORN
conductor.
RETURN AIR SENSOR
(Operating Position Shown)
Highlight C: 24V power signal via ORN lead is removed
at Smoke Detector input on CTB (Control Terminal
Board); all unit operations cease immediately.
PremierLink Control: Unit operating functions (fan,
cooling and heating) are terminated as described above. In
addition:
Highlight D: On smoke alarm condition, the smoke
detector NO Alarm contact will close, supplying 24V
power to GRA conductor.
Highlight E: GRA lead at Smoke Alarm input on CTB
provides 24V signal to FIOP DDC control.
PremierLink: This signal is conveyed to PremierLink
FIOPs TB1 at terminal TB1-- 6 (BLU lead). This signal
initiates the FSD sequence by the PremierLink control.
FSD status is reported to connected CCN network.
RTU-- OPEN: The 24V signal is conveyed to
RTU-- OPEN’s J1-- 10 input terminal. This signal initiates
the FSD sequence by the RTU-- OPEN control. FSD status
is reported to connected BAS network.
Using Remote Logic: Five conductors are provided for
field use (see Highlight F in Fig. 51) for additional
annunciation functions.
Additional Application Data — Refer to Catalog No.
HKRNKA-- 1XA for discussions on additional control
features of these smoke detectors including multiple unit
coordination. See Fig. 51.
C12050
Fig. 50 - Return Air Sensor Operating Position
32
B
D
C
F
A
C08246
Fig. 51 - Typical Smoke Detector System Wiring
Sensor and Controller Tests
Controller Alarm Test
Sensor Alarm Test
The controller alarm test checks the controller’s ability to
initiate and indicate an alarm state.
The sensor alarm test checks a sensor’s ability to signal an
alarm state. This test requires that you use a field provided
SD-- MAG test magnet.
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
This test places the duct detector into the alarm state.
Unless part of the test, disconnect all auxiliary
equipment from the controller before performing the
test. If the duct detector is connected to a fire alarm
system, notify the proper authorities before
performing the test.
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
This test places the duct detector into the alarm state.
Unless part of the test, disconnect all auxiliary
equipment from the controller before performing the
test. If the duct detector is connected to a fire alarm
system, notify the proper authorities before
performing the test.
Controller Alarm Test Procedure
1. Press the controller’s test/reset switch for seven
seconds.
2. Verify that the controller’s Alarm LED turns on.
3. Reset the sensor by pressing the test/reset switch for
two seconds.
4. Verify that the controller’s Alarm LED turns off.
Sensor Alarm Test Procedure
1. Hold the test magnet where indicated on the side of
the sensor housing for seven seconds.
2. Verify that the sensor’s Alarm Light Emitting Diode
(LED) turns on.
3. Reset the sensor by holding the test magnet against
the sensor housing for two seconds.
4. Verify that the sensor’s Alarm LED turns off.
33
50HCQ
E
Dirty Controller Test
NOTICE
The dirty controller test checks the controller’s ability to
initiate a dirty sensor test and indicate its results.
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
Changing the dirty sensor test operation will put the
detector into the alarm state and activate all automatic
alarm responses. Before changing dirty sensor test
operation, disconnect all auxiliary equipment from the
controller and notify the proper authorities if
connected to a fire alarm system.
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
Pressing the controller’s test/reset switch for longer
than seven seconds will put the duct detector into the
alarm state and activate all automatic alarm responses.
50HCQ
Changing the Dirty Sensor Test
Dirty Controller Test Procedure
1. Press the controller’s test/reset switch for two
seconds.
2. Verify that the controller’s Trouble LED flashes.
Dirty Sensor Test
The dirty sensor test provides an indication of the sensor’s
ability to compensate for gradual environmental changes.
A sensor that can no longer compensate for environmental
changes is considered 100% dirty and requires cleaning or
replacing. You must use a field provided SD-- MAG test
magnet to initiate a sensor dirty test. The sensor’s Dirty
LED indicates the results of the dirty test as shown in
Table 11.
By default, sensor dirty test results are indicated by:
S The sensor’s Dirty LED flashing.
S The controller’s Trouble LED flashing.
S The controller’s supervision relay contacts toggle.
The operation of a sensor’s dirty test can be changed so
that the controller’s supervision relay is not used to
indicate test results. When two detectors are connected to
a controller, sensor dirty test operation on both sensors
must be configured to operate in the same manner.
Configure the Dirty Sensor Test Operation:
1. Hold the test magnet where indicated on the side of
the sensor housing until the sensor’s Alarm LED turns
on and its Dirty LED flashes twice (approximately 60
seconds).
2. Reset the sensor by removing the test magnet then
holding it against the sensor housing again until the
sensor’s Alarm LED turns off (approximately 2
seconds).
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
Holding the test magnet against the sensor housing for
more than seven seconds will put the duct detector
into the alarm state and activate all automatic alarm
responses.
Remote Station Test
The remote station alarm test checks a test/reset station’s
ability to initiate and indicate an alarm state.
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
This test places the duct detector into the alarm state.
Unless part of the test, disconnect all auxiliary
equipment from the controller before performing the
test. If the duct detector is connected to a fire alarm
system, notify the proper authorities before
performing the test.
Table 11 – Dirty LED Test
FLASHES
1
2
3
4
DESCRIPTION
0--- 25% dirty. (Typical of a newly installed detector)
25--- 50% dirty
51--- 75% dirty
76--- 99% dirty
Dirty Sensor Test Procedure:
1. Hold the test magnet where indicated on the side of
the sensor housing for two seconds.
2. Verify that the sensor’s Dirty LED flashes.
34
NOTICE
12
Smoke Detector Controller
1
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
Holding the test magnet to the target area for longer
than seven seconds will put the detector into the alarm
state and activate all automatic alarm responses.
TB3
3
1
−
2
+
Auxiliary
equipment
14
SD-TR14
Supervision relay
contacts [3]
Trouble
5
13
SD-- TRK4 Remote Alarm Test Procedure:
18 Vdc (+)
1. Turn the key switch to the RESET/TEST position for
seven seconds.
2. Verify that the test/reset station’s Alarm LED turns
on.
3. Reset the sensor by turning the key switch to the
RESET/TEST position for two seconds.
4. Verify that the test/reset station’s Alarm LED turns
off.
Wire must be
added by installer
Power
19
4
15
1
2
3
Alarm
20
18 Vdc (−)
50HCQ
Reset/Test
2
C08247
Fig. 52 - Remote Test/Reset Station Connections
Remote Test/Reset Station Dirty Sensor Test
NOTICE
The test/reset station dirty sensor test checks the test/reset
station’s ability to initiate a sensor dirty test and indicate
the results. It must be wired to the controller as shown in
Fig. 52 and configured to operate the controller’s
supervision relay. For more information, see “Changing
the Dirty Sensor Test.”
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
Holding the test magnet to the target area for longer
than seven seconds will put the detector into the alarm
state and activate all automatic alarm responses.
Dirty Sensor Test Using an SD-- TRK4 Test Set:
1. Turn the key switch to the RESET/TEST position for
two seconds.
2. Verify that the test/reset station’s Trouble LED
flashes.
Table 12 – Detector Indicators
CONTROL OR INDICATOR
Magnetic test/reset switch
Alarm LED
Trouble LED
Dirty LED
Power LED
DESCRIPTION
Resets the sensor when it is in the alarm or trouble state. Activates or tests the sensor when it is in
the normal state.
Indicates the sensor is in the alarm state.
Indicates the sensor is in the trouble state.
Indicates the amount of environmental compensation used by the sensor
(flashing continuously = 100%)
Indicates the sensor is energized.
Detector Cleaning
NOTICE
Cleaning the Smoke Detector:
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
If the smoke detector is connected to a fire alarm
system, first notify the proper authorities that the
detector is undergoing maintenance then disable the
relevant circuit to avoid generating a false alarm.
Clean the duct smoke sensor when the Dirty LED is
flashing continuously or sooner if conditions warrant.
35
50HCQ
1. Disconnect power from the duct detector then remove
the sensor’s cover. See Fig. 53.
2. Using a vacuum cleaner, clean compressed air, or a
soft bristle brush, remove loose dirt and debris from
inside the sensor housing and cover. Use isopropyl
alcohol and a lint-- free cloth to remove dirt and other
contaminants from the gasket on the sensor’s cover.
3. Squeeze the retainer clips on both sides of the optic
housing then lift the housing away from the printed
circuit board.
4. Gently remove dirt and debris from around the optic
plate and inside the optic housing.
5. Replace the optic housing and sensor cover.
6. Connect power to the duct detector then perform a
sensor alarm test.
(100% dirty).
S A wiring fault between a sensor and the controller is
detected.
An internal sensor fault is detected upon entering the
trouble state:
S The contacts on the controller’s supervisory relay
switch positions. See Fig. 54.
S If a sensor trouble, the sensor’s Trouble LED and the
controller’s Trouble LED turn on.
S If 100% dirty, the sensor’s Dirty LED turns on and the
controller’s Trouble LED flashes continuously.
S If a wiring fault between a sensor and the controller, the
controller’s Trouble LED turns on but not the sensor’s.
Trouble
Alarm
HVAC DUCT
SAMPLING
TUBE
Power
SENSOR
HOUSING
Test/reset
switch
OPTIC
PLATE
AIRFLOW
C07298
RETAINER
CLIP
OPTIC
HOUSING
C07305
Fig. 53 - Sensor Cleaning Diagram
Fig. 54 - Controller Assembly
NOTE: All troubles are latched by the duct smoke
detector. The trouble condition must be cleared and then
the duct smoke detector must be reset in order to restore it
to the normal state.
Indicators
Resetting Alarm and Trouble Condition Trips
Normal State:
Manual reset is required to restore smoke detector systems
to Normal operation. For installations using two sensors,
the duct smoke detector does not differentiate which
sensor signals an alarm or trouble condition. Check each
sensor for Alarm or Trouble status (indicated by LED).
Clear the condition that has generated the trip at this
sensor. Then reset the sensor by pressing and holding the
reset button (on the side) for 2 seconds. Verify that the
sensor’s Alarm and Trouble LEDs are now off. At the
controller, clear its Alarm or Trouble state by pressing and
holding the manual reset button (on the front cover) for 2
seconds. Verify that the controller’s Alarm and Trouble
LEDs are now off. Replace all panels.
The smoke detector operates in the normal state in the
absence of any trouble conditions and when its sensing
chamber is free of smoke. In the normal state, the Power
LED on both the sensor and the controller are on and all
other LEDs are off.
Alarm State:
The smoke detector enters the alarm state when the
amount of smoke particulate in the sensor’s sensing
chamber exceeds the alarm threshold value. See Table 12.
Upon entering the alarm state:
S The sensor’s Alarm LED and the controller’s Alarm
LED turn on.
S The contacts on the controller’s two auxiliary relays
switch positions.
S The contacts on the controller’s alarm initiation relay
close.
S The controller’s remote alarm LED output is activated
(turned on).
S The controller’s high impedance multiple fan shutdown
control line is pulled to ground Trouble state.
The SuperDuct duct smoke detector enters the trouble
state under the following conditions:
S A sensor’s cover is removed and 20 minutes pass before
it is properly secured.
S A sensor’s environmental compensation limit is reached
Troubleshooting
Controller’s Trouble LED is On:
1. Check the Trouble LED on each sensor connected to
the controller. If a sensor’s Trouble LED is on,
determine the cause and make the necessary repairs.
2. Check the wiring between the sensor and the
controller. If wiring is loose or missing, repair or
replace as required.
Controller’s Trouble LED is Flashing:
1. One or both of the sensors is 100% dirty.
2. Determine which Dirty LED is flashing then clean
that sensor assembly as described in the detector
cleaning section.
36
1. Check the sensor’s Dirty LED. If it is flashing, the
sensor is dirty and must be cleaned.
2. Check the sensor’s cover. If it is loose or missing,
secure the cover to the sensor housing.
3. Replace sensor assembly.
Remote Test/Reset Station’s Trouble LED Does Not
flash When Performing a Dirty Test, But the Controller’s Trouble LED Does:
1. Verify that the remote test/station is wired as shown
in Fig. 52. Repair or replace loose or missing wiring.
2. Configure the sensor dirty test to activate the
controller’s supervision relay. See “To Configure the
Dirty Sensor Test Operation” for details.
Sensor’s Power LED is Off:
1. Check the controller’s Power LED. If it is off,
determine why the controller does not have power
and make the necessary repairs.
2. Check the wiring between the sensor and the
controller. If wiring is loose or missing, repair or
replace as required.
Controller’s Power LED is Off:
1. Ensure the circuit supplying power to the controller is
operational. If not, make sure JP2 and JP3 are set
correctly on the controller before applying power.
2. Verify that power is applied to the controller’s supply
input terminals. If power is not present, replace or
repair wiring as required.
Sensor’s Trouble LED is On, But the Controller’s
Trouble LED is OFF:
Remove JP1 on the controller.
Supply Air Temperature (SAT) Sensor — On
FIOP-- equipped 50HCQ unit, the unit is supplied with a
supply-- air temperature (SAT) sensor (p/n:33ZCSENSAT).
This sensor is a tubular probe type, approx 6-- inches (12.7
mm) in length. It is a nominal 10-- k ohm thermistor. See
PremierLinkt Installation, Start-- Up and Configuration
Instructions. for temperature-- resistance characteristic.
PREMIERLINK CONTROL
The PremierLink controller (see Fig. 55) is compatible
with Carrier Comfort Networkr (CCN) devices. This
control is designed to allow users the access and ability to
change factory-- defined settings, thus expanding the
function of the standard unit control board. CCN service
access tools include System Pilott, Touch Pilott and
Service Tool. Standard tier display tools Navigatort and
Scrolling Marquee are not suitable for use with latest
PremierLink controller (Version 2.x).
The PremierLink control is factory-- mounted in the
50HCQ unit’s main control box to the left of the CTB.
Factory wiring is completed through harnesses connected
to the LVTB. Field connections are made at a 16-- pole
terminal block (TB1) located on the bottom shelf of the
unit control box in front of the PremierLink controller The
factory-- installed PremierLink control includes the
supply-- air temperature (SAT) sensor. The outdoor air
temperature (OAT) sensor is included in the
FIOP/accessory EconoMi$er 2 package.
Refer to Fig. 55 for PremierLink connection locations.
NOTE: Refer to PremierLinkt Installation, Start-- Up
and Configuration Instructions. Have a copy of this
manual available at unit start-- up.
C08199
Fig. 55 - PremierLink Controller
37
50HCQ
Sensor’s Trouble LED is On:
RTU--OPEN CONTROL SYSTEM
RTU--Open Controller
The RTU-- OPEN controller is an integrated component of
the Carrier rooftop unit. Its internal application
programming provides optimum performance and energy
efficiency. RTU-- OPEN enables the unit to run in 100%
stand-- alone control mode, Carrier’s I-- Vu Open network,
or a Third Party Building Automation System (BAS).
On-- board DIP switches allow you to select your protocol
(and baud rate) of choice among the four most popular
protocols in use today: BACnet, Modbus, Johnson N2 and
LonWorks. (See Fig. 56.)
Carrier’s diagnostic display tools such as Field Assistant
BACview6 Handheld or Virtual BACview can be used
with the RTU-- OPEN controller. Access is available via a
5-- pin J12 access port.
then feed the wires thorough the raceway to the
RTU-OPEN. Connect the wires to the removable Phoenix
connectors and then reconnect the connectors to the board.
See Fig. 56.
IMPORTANT: Refer to the specific sensor or accessory
instructions for its proper installation and for rooftop unit
installation refer to base unit installation instructions and
the unit’s wiring diagrams.
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury, death and/or equipment damage.
Disconnect all electrical power to the unit and use
appropriate Lock--out/Tagout procedures before wiring
the RTU--OPEN controller.
SENSORY/ACCESSORY INSTALLATION
There are a variety of sensors and accessories available
for the RTU-OPEN. Some of these can be factory or field
installed, while others are only field installable. The
RTU-OPEN controller can also require connection to a
building network system or building zoning system. All
field control wiring that connects to the RTU-OPEN must
be routed through the raceway built into the corner post of
the unit or secured to the unit control box with electrical
conduit. The unit raceway provides the UL required
clearance between high and low-voltage wiring. Pass the
control wires through the hole provided in the corner post,
WARNING
ADDITIONAL RTU--OPEN INSTALLATION
AND TROUBLESHOOTING
Refer to the following manuals: “Controls, Start-- up,
Operation and Troubleshooting Instructions,” and “RTU
Open Installation and Start-- up Guide” for additional
installation, wiring and troubleshooting information for
the RTU-- OPEN Controller. Have a copy of this manual
available at unit start-- up.
38
C10818
Fig. 56 -- RTU--OPEN Control Module
39
PRE--START--UP
START--UP
!
2. Read and follow instructions on all WARNING,
CAUTION, and INFORMATION labels attached to,
or shipped with, unit.
WARNING
!
50HCQ
PERSONAL INJURY HAZARD
Failure to follow this warning could result in personal
injury or death.
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could result in personal
injury or death.
Relieve pressure and recover all refrigerant before
system repair or final unit disposal.
Wear safety glasses and leather gloves when handling
refrigerants.
Keep torches and other ignition sources away from
refrigerants and oils.
3. Follow recognized safety practices and wear
approved Personal Protective Equipment (PPE),
including goggles and gloves when checking or
servicing refrigerant system.
4. Do not use a torch to remove any component.
System contains oil and refrigerant under
pressure. To remove a component, wear PPE and
proceed as follows:
a. Shut off all electrical power to unit. Apply
applicable Lock-- out/Tagout procedures.
b. Recover refrigerant to relieve all pressure
from system using both high-- pressure and
low pressure ports.
c. Do not use a torch. Cut component connection tubing with tubing cutter and remove
component from unit.
d. Carefully un-- sweat remaining tubing stubs
when necessary. Oil can ignite when exposed
to torch flame.
5. Do not operate compressor or provide any electric
power to unit unless compressor terminal cover is
in place and secured.
6. Do not remove compressor terminal cover until
all electrical power is disconnected and approved
Lock-- out/Tagout procedures are in place.
7. Relieve all pressure from system before touching
or disturbing anything inside terminal box
whenever refrigerant leak is suspected around
compressor terminals.
8. Never attempt to repair a soldered connection
while refrigerant system is under pressure.
!
3. Perform the following inspections:
a. Inspect for shipping and handling damages such
as broken lines, loose parts, or disconnected
wires, etc.
b. Inspect for oil at all refrigerant tubing
connections and on unit base. Detecting oil
generally indicates a refrigerant leak. Leak-- test
all refrigerant tubing connections using
electronic leak detector, halide torch, or
liquid-- soap solution.
c. Inspect all field-- wiring and factory-- wiring
connections. Be sure that connections are
completed and tight. Be sure that all electrical
wires are not in contact with refrigerant tubing
or sharp edges.
d. Inspect coil fins. If damaged during shipping and
handling, carefully straighten fins with a fin
comb.
4. Verify the following conditions:
a. Ensure that condenser-- fan blades are correctly
positioned in fan orifice. See Condenser-- Fan
Adjustment section for more details.
b. Ensure all air filters are in place.
c. Ensure that condensate drain trap is filled with
water to ensuring proper drainage.
d. Ensure that all tools and miscellaneous loose
parts have been removed.
WARNING
ELECTRICAL OPERATION HAZARD
Failure to follow this warning result in personal injury
or death.
The unit must be electrically grounded in accordance
with local codes and NEC ANSI/NFPA 70 (American
National Standards Institute/National fire Protection
Association.
Proceed as follows to inspect and prepare the unit for
initial start-- up:
1. Remove all access panels.
WARNING
START--UP, GENERAL
IMPORTANT: Follow the base unit’s start-up sequence
as described in the unit’s installation instructions:
In addition to the base unit start-up, there are a few steps
needed to properly start-up the controls. RTU-OPEN’s
Service Test function should be used to assist in the base
unit start-up and also allows verification of output
operation. Controller configuration is also part of start-up.
This is especially important when field accessories have
been added to the unit. The factory pre-configures options
installed at the factory. There may also be additional
installation steps or inspection required during the start-up
process.
40
Additional Installation/Inspection
Unit Preparation
Ensure the unit has been installed in accordance with
installation instructions and applicable codes.
Return--Air Filters
Ensure the correct filters are installed in the unit (see
Appendix II - Physical Data). Do not operate unit without
return-- air filters in place.
Outdoor--Air Inlet Screens
The suction and discharge pressure levels should now
move to their normal start-- up levels.
NOTE: When the compressor is rotating in the wrong
direction, the unit will make an elevated level of noise
and will not provide cooling.
Refrigerant Service Ports
Each unit system has two 1/4” SAE flare (with check
valves) service ports: one on the suction line, and one on
the compressor discharge line. Be sure that caps on the
ports are tight.
Cooling
Compressors are internally spring mounted. Do not loosen
or remove compressor hold down bolts.
Set space thermostat to OFF position. To start unit, turn on
main power supply. Set system selector switch at COOL
position and fan switch to AUTO. position. Adjust
thermostat to a setting below room temperature.
Compressor starts on closure of contactor. (D08–12:
Second stage of thermostat will energize Circuit 2
contactor, start Compressor 2.)
Internal Wiring
Check unit charge. Refer to Refrigerant Charge section.
Check all electrical connections in unit control boxes.
Tighten as required.
Reset thermostat at a position above room temperature.
Compressor will shut off. Evaporator fan will shut off
after a 60-- second delay if the dip switch for the indoor fan
off delay on the Defrost Control Board (DFB) is set to on.
Outdoor-- air inlet screen must be in place before operating
unit.
Compressor Mounting
Compressor Rotation
!
CAUTION
EQUIPMENT DAMAGE
Failure to follow this caution can result in equipment
damage.
Scroll compressors can only compress refrigerant if
rotating in the right direction. Reverse rotation for
extended times can result in internal damage to the
compressor. Scroll compressors are sealed units and
cannot be repaired on site location.
On 3-- phase units with scroll compressors, it is important
to be certain compressor is rotating in the proper
direction. To determine whether or not compressor is
rotating in the proper direction:
1. Connect service gauges to suction and discharge
pressure fittings.
2. Energize the compressor.
3. The suction pressure should drop and the discharge
pressure should rise, as is normal on any start-- up.
If the suction pressure does not drop and the discharge
pressure does not rise to normal levels:
1. Note that the evaporator fan is probably also rotating
in the wrong direction.
To shut off unit - set system selector switch to the OFF
position. Resetting thermostat at a position above room
temperature shuts the unit off temporarily until space
temperature exceeds thermostat setting.
Heating
To start unit, turn on main power supply.
Set system selector switch to the HEAT position and set
thermostat at a setting above room temperature. Set fan to
AUTO position.
First stage of thermostat energizes compressor heating
(D08–12: both compressors will start). Second stage of
thermostat energizes electric heaters (if installed). Check
heating effects at air supply grille(s).
If electric heaters do not energize, reset limit switch
(located on supply-- fan scroll) by pressing button located
between terminals on the switch.
Shut unit off - set system selector switch to the OFF
position. Resetting thermostat at a position below room
temperature temporarily shuts unit off until space
temperature falls below thermostat setting.
Ventilation (Continuous Fan)
Set fan and system selector switches at ON and OFF
positions, respectively. Supply fan operates continuously
to provide constant air circulation.
41
50HCQ
Inspect the field installed accessories for proper
installation, making note of which ones do or do not
require configuration changes. Inspect the RTU-OPEN’s
Alarms for initial insight to any potential issues. See
troubleshooting section for alarms. Inspect the SAT
sensor for relocation as intended during installation.
Inspect special wiring as directed below.
2. Turn off power to the unit and apply lockout/tagout
procedures.
3. Reverse any two of the unit power leads.
4. Re-- energize to the compressor. Check pressures.
START--UP, PREMIERLINK
!
START--UP, RTU--OPEN
NOTICE
WARNING
SET-- UP INSTRUCTIONS
Refer to the following manuals for additional
installation, wiring and troubleshooting information
for the RTU-- OPEN Controller.: “Controls, Start-- up,
Operation and Troubleshooting Instructions,” “RTU
Open Installation and Start-- up Guide” and
“RTU-- Open Integration Guide”. Have a copy of these
manuals available at unit start-- up.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
The unit must be electrically grounded in accordance
with local codes and NEC ANSI/NFPA 70 (American
National Standards Institute/National Fire Protection
Association.)
50HCQ
Use the Carrier Communication Network (CCN) software
to start up and configure the PremierLink controller.
Changes can be made using the ComfortWORKSr
software, ComfortVIEWt software, Network Service
Tool, System Pilott device, or Touch Pilott device. The
System Pilot and Touch Pilot are portable interface
devices that allow the user to change system set-- up and
setpoints from a zone sensor or terminal control module.
During start-- up, the Carrier software can also be used to
verify communication with PremierLink controller.
NOTICE
SET-- UP INSTRUCTIONS
All set-- up and set point configurations are factory set
and field-- adjustable.
Refer to PremierLinkt Installation, Start-- Up and
Configuration Instructions .for specific operating
instructions for the controller. Have a copy of this
manual available at unit start-- up.
Perform System Check--Out
1. Check all power and communication connections
ensuring the are properly connected and securely
tightened.
2. At the unit, check fan and system controls for proper
operation.
3. At the unit, check electrical system and connections
of any optional electric reheat coil.
4. Ensure all area around the unit is clear of construction
dirt and debris.
5. Ensure final filters are installed in the unit. Dust and
debris can adversely affect system operation.
6. Verify the PremierLink controls are properly
connected to the CCN bus.
42
FASTENER TORQUE VALUES
Supply fan motor mounting
120 ¦ 12 in ---lbs
13.6 ¦ 1.4 Nm
Supply fan motor adjustment plate
120 ¦ 12 in ---lbs
13.6 ¦ 1.4 Nm
Motor pulley setscrew
72 ¦ 5 in ---lbs
8.1 ¦ 0.6 Nm
Fan pulley setscrew
72 ¦ 5 in ---lbs
8.1 ¦ 0.6 Nm
Blower wheel hub setscrew
72 ¦5 in ---lbs
8.1 ¦0.6 Nm
Bearing locking collar setscrew
55 to60 in ---lbs
6.2 to 6.8 Nm
Compressor mounting bolts
65 to75 in ---lbs
7.3 to 7.9 Nm
Condenser fan motor mounting bolts
65 to75 in ---lbs
7.3 to 7.9 Nm
Condenser fan motor mounting bolts
20 ¦ 2 in ---lbs
2.3 ¦ 0.2 Nm
Condenser fan hub setscrew
84 ¦ 12 in ---lbs
9.5 ¦ 1.4 Nm
Motor mount arm
60 ¦ 5 in ---lbs
6.8 ¦ 0.5 Nm
Fan wheel hub setscrew
120 ¦ 12 in ---lbs
13.6 ¦ 1.4 Nm
Motor belly band bolt
80 ¦ 5 in ---lbs
9.0 ¦ 0.6 Nm
A04---06 Direct---Drive:
43
50HCQ
Table 13 – Torque Values
APPENDIX I. MODEL NUMBER SIGNIFICANCE
Model Number Nomenclature
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18
5 0 HCQA 0 6 A 0 A 6 A 0 B 0 A 0
Unit Type
50 = Packaged Rooftop
High Efficiency
Brand / Packaging
0 = Standard
1 = LTL
50HCQ
Model
HC = High Efficiency
(with Puron Refrigerant)
Electrical Options
A = None
C = Non-Fused Disconnect
D = Through the Base Connections
F = Non fused Disconnect and Thru-the-Base
Connections
G = 2-Speed Indoor Fan (VFD) Controller
J = 2-Speed Fan Controller (VFD) and Non-Fused
Disconnect
K = 2-Speed Fan Controller (VFD) and Thru-the-Base
Connections
M = 2-Speed Fan Controller (VFD)with Non-Fused
Disconnect and Thru-the-Base Connections
Heat Size
Q = Heat Pump
Refrigeration System Options
A = 1-Stage Cooling Compressor Models
D = 2-Stage Cooling Compressor Models
Cooling Tons
04 = 3 Ton
05 = 4 Ton
06 = 5 Ton
07 = 6 Ton
08 = 7.5 Ton
09 = 8.5 Ton
12 = 10 Ton
Service Options
0 = None
1 = Unpowered Convenience Outlet
2 = Powered Convenience Outlet
3 = Hinged Panels
4 = Hinged Panels, Unpowered Convenience Outlet
5 = Hinged Panels, Powered Convenience Outlet
Sensor Options
A = None
B = RA Smoke Detector
C = SA Smoke Detector
D = RA and SA Smoke Detectors
E = CO2 Sensor
F = RA Smoke Detector and CO2
G = SA Smoke Detector and CO2
H = RA and SA Smoke Detectors with CO2
Indoor Fan Options
0 = Electric (Direct) Drive X13 5-Speed/Torque
Motor (3 - 5 Ton Only)
1 = Standard Static Option - Belt Drive
2 = Medium Static Option - Belt Drive
3 = High Static Option C = High Static Option with High Effieiency
Motor - Belt Drive (10 Ton Only)
Coil Options ( Outdoor - Indoor - Hail Guard)
A = Al/Cu - Al/Cu
B = Precoat Al/Cu - Al/Cu
C = E Coat Al/Cu - Al/Cu
D = E Coat Al/Cu - E Coat Al/Cu
E = Cu/Cu - Al/Cu
F = Cu/Cu - Cu/Cu
M = Al/Cu - Al/Cu - Louvered Hail Guards
N = Precoat Al/Cu - Al/Cu - Louvered Hail Guards
P = E Coat Al/Cu - Al/Cu - Louvered Hail Guards
Q = E coat Al/Cu - E Coat Al/Cu - Louvered Hail Guards
R = Cu/Cu - al/Cu - Louvered Hail Guards
S = Cu/Cu - Cu/Cu - Louvered Hail Guards
Intake / Exhaust Options
A = None
B = Temperature Economizer with Barometric Relief
F = Enthalpy Economizer with Barometric Relief
K = 2-Position Damper
Base Unit Controls
0 = Electromechanical
1 = PremierLink DDC Controller
2 = RTU-Open Multi-Protocol Controller
Design Revision
- = Factory Design Revision
Voltage
1 = 575/3/60
3 = 208 - 230/1/60
5 = 208 - 230/3/60
6 = 460/3/60
44
Serial Number Format
1
0
POSITION
1--- 2
3--- 4
5
6--- 10
2
4
3
0
4
9
5
G
6
1
7
2
8
3
9
4
10
5
DESIGNATES
Week of manufacture (fiscal calendar)
Year of manufacture (“08” = 2008)
Manufacturing location (G = ETP, Texas, USA)
Sequential number
50HCQ
POSITION NUMBER
TYPICAL
45
APPENDIX II. PHYSICAL DATA
50HCQA04
50HCQA05
50HCQA06
50HCQA07
1 / 1 / Scroll
12--- 8 / --25 / --TXV
630 / 505
27 / 44
1 / 1 / Scroll
15--- 8 / --42 / --TXV
630 / 505
27 / 44
1 / 1 / Scroll
17--- 8 / --42 / --TXV
630 / 505
27 / 44
1 / 1 / Scroll
15--- 8 / --56 / --TXV
630 / 505
27 / 44
Cu / Al
3/8” RTPF
3 / 15
5.5
3/4”
Cu / Al
3/8” RTPF
4 / 15
7.3
3/4”
Cu / Al
3/8” RTPF
4 / 15
7.3
3/4”
Cu / Al
3/8” RTPF
4 / 15
8.9
3/4”
Standard Static
1 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1 / Direct
1
600--- 1200
48
1 / Centrifugal
10 x 10
1 / Direct
1
600--- 1200
48
1 / Centrifugal
10 x 10
1 / Direct
1
600--- 1200
48
1 / Centrifugal
11 x 10
n/a
n/a
n/a
n/a
1 / Centrifugal
n/a
Standard Static
3 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1 / Direct
1
600--- 1200
48
1 / Centrifugal
10 x 10
1 / Direct
1
600--- 1200
48
1 / Centrifugal
10 x 10
1 / Direct
1
600--- 1200
48
1 / Centrifugal
11 x 10
1 / Belt
1.2
489--- 747
56
1 / Centrifugal
15 x 15
Medium Static
3 phase
3 - 6 TONS)
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1 / Belt
1.5
819--- 1251
56
1 / Centrifugal
10 x 10
1 / Belt
1.5
920--- 1303
56
1 / Centrifugal
10 x 10
1 / Belt
2.0
1066--- 1380
56
1 / Centrifugal
10 x 10
1 / Belt
2.9
733--- 949
56
1 / Centrifugal
15 x 15
High Static
3 phase
50HCQ
Table 14 – Physical Data (Cooling)
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1 / Belt
2.0
1035--- 1466
56
1 / Centrifugal
10 x 10
1 / Belt
2.0
1035--- 1466
56
1 / Centrifugal
10 x 10
1 / Belt
2.9
1208--- 1639
56
1 / Centrifugal
10 x 10
1 / Belt
4
909--- 1102
145
1 / Centrifugal
15 x 15
Cu / Al
3/8” RTPF
2 / 17
16.5
Cu / Al
3/8” RTPF
2 / 17
21.3
Cu / Al
3/8” RTPF
2 / 17
21.3
Cu / Al
3/8” RTPF
2 / 17
20.5
1/ Direct
1/8 / 825
22
1 / Direct
1/4 / 1100
22
1 / Direct
1/4 / 1100
22
1/ Direct
1/4 / 1100
22
2 / 16 x 25 x 2
1 / 20 x 24 x 1
4 / 16 x 16 x 2
1 / 20 x 24 x 1
4 / 16 x 16 x 2
1 / 20 x 24 x 1
4 / 16 x 20 x 2
1 / 20 x 36 x 1
Refrigeration System
# Circuits / # Comp. / Type
Puron (R--- 410a) charge A/B (lbs)
Oil A/B (oz)
Metering Device
High--- press. Trip / Reset (psig)
Loss of charge press. Trip / Reset (psig)
Indoor Coil
Material
Coil type
Rows / FPI
Total Face Area (ft2)
Condensate Drain Conn. Size
Evaporator Fan and Motor
Outdoor Coil
Material
Coil type
Rows / FPI
Total Face Area (ft2)
Outdoor fan / motor
Qty / Motor Drive Type
Motor HP / RPM
Fan diameter (in)
Filters
RA Filter # / Size (in)
OA inlet screen # / Size (in)
Cu / AI: Copper Tube / Aluminum Fin
RTPF: Round Tube / Plate Fin
46
APPENDIX II. PHYSICAL DATA
50HCQD09
50HCQD12
2 / 2 / Scroll
11--- 12 / 11--- 12
42 / 42
TXV
630 / 505
27 / 44
1 / 1 / Scroll
15--- 8 / --42 / --TXV
630 / 505
27 / 44
1 / 1 / Scroll
17--- 8 / --42 / --TXV
630 / 505
27 / 44
Cu / Al
3/8” RTPF
4 / 15
11.1
3/4”
Cu / Al
3/8” RTPF
4 / 15
7.3
3/4”
Cu / Al
3/8” RTPF
4 / 15
7.3
3/4”
Standard Static
1 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1 / Belt
1.2
518--- 733
56
1 / Centrifugal
15 x 15
1 / Belt
1.2
460--- 652
56
1 / Centrifugal
15 x 15
1 / Belt
2.4
440--- 609
56
1 / Centrifugal
18 x 18
Standard Static
3 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1 / Belt
1.7
690--- 936
56
1 / Centrifugal
15 x 15
1 / Belt
2.9
460--- 652
56
1 / Centrifugal
15 x 15
1 / Belt
2.9
440--- 609
56
1 / Centrifugal
18 x 18
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1 / Belt
2.8
838--- 1084
56
1 / Centrifugal
10 x 10
1 / Belt
2.9
838--- 1084
56
1 / Centrifugal
10 x 10
1 / Belt
6.1
762--- 963
S184T
1 / Centrifugal
18 x 18
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
1 / Belt
6.5 / 6.9 / 7.0 / 8.3
776 / 955
S184T
1 / Centrifugal
18 x 18
Material
Coil type
Rows / FPI
Total Face Area (ft2)
Cu / Al
3/8” RTPF
2 / 17
25.1
Cu / Al
3/8” RTPF
3 / 17
25.1
Cu / Al
3/8” RTPF
2 / 17
46.2
Qty / Motor Drive Type
Motor HP / RPM
Fan diameter (in)
2 / Direct
1/4 / 1100
22
1 / Direct
1 / 1175
30
3 / Direct
1 / 1100
22
4 / 20 x 20 x 2
1 / 20 x 24 x 1
4 / 20 x 20 x 2
1 / 20 x 24 x 1
6 / 18 x 24 x 2
1 / 30 x 39 x 1
Refrigeration System
# Circuits / # Comp. / Type
Puron (R--- 410a) charge A/B (lbs)
Oil A/B (oz)
Metering Device
High--- press. Trip / Reset (psig)
Loss of charge press. Trip / Reset (psig)
Indoor Coil
Material
Coil type
Rows / FPI
Total Face Area (ft2)
Condensate Drain Conn. Size
Evaporator Fan and Motor
Outdoor Coil
Outdoor fan / motor
Filters
RA Filter # / Size (in)
OA inlet screen # / Size (in)
Cu / AI: Copper Tube / Aluminum Fin
RTPF: Round Tube / Plate Fin
47
50HCQ
50HCQD08
Medium Static
3 phase
7.5 - 10 TONS
High Static
3 phase
Table 15 – Physical Data (Cooling)
APPENDIX III. FAN PERFORMANCE
General Fan Performance Notes:
50HCQ
1. Interpolation is permissible. Do not extrapolate.
2. External static pressure is the static pressure difference between the return duct and the supply duct plus the static
pressure caused by any FIOPs or accessories.
3. Tabular data accounts for pressure loss due to clean filters, unit casing, and wet coils. Factory options and accessories
can add static pressure losses.
4. The Fan Performance tables offer motor/drive recommendations. In cases when two motor/drive combinations would
work, Carrier recommended the lower horsepower option.
5. For information on the electrical properties of Carrier’s motors, please see the Electrical information section of this
book.
48
APPENDIX III. FAN PERFORMANCE
SPEED
(TORQUE)
TAP
1
2
3
4
5
CFM
ESP
BHP
900
975
1050
1125
1200
1275
1350
1425
1500
900
975
1050
1125
1200
1275
1350
1425
1500
900
975
1050
1125
1200
1275
1350
1425
1500
900
975
1050
1125
1200
1275
1350
1425
1500
900
975
1050
1125
1200
1275
1350
1425
1500
0.57
0.47
0.37
0.27
0.18
0.09
------0.73
0.62
0.51
0.41
0.30
0.19
0.08
----1.04
0.93
0.82
0.70
0.58
0.46
0.34
0.23
0.12
1.26
1.18
1.09
0.99
0.88
0.76
0.63
0.50
0.37
1.35
1.30
1.26
1.21
1.16
1.12
1.07
1.02
0.87
0.25
0.24
0.22
0.21
0.20
0.20
------0.30
0.29
0.28
0.27
0.25
0.24
0.22
----0.41
0.40
0.39
0.38
0.36
0.35
0.33
0.31
0.30
0.49
0.50
0.50
0.50
0.49
0.47
0.46
0.44
0.42
0.52
0.54
0.57
0.59
0.62
0.64
0.67
0.70
0.73
Table 17 – 50HCQA04 ELECTRIC DRIVE, X13
MOTOR, 3 TON VERTICAL SUPPLY
SPEED
(TORQUE)
TAP
1
2
3
4
5
49
CFM
ESP
BHP
900
975
1050
1125
1200
1275
1350
1425
1500
900
975
1050
1125
1200
1275
1350
1425
1500
900
975
1050
1125
1200
1275
1350
1425
1500
900
975
1050
1125
1200
1275
1350
1425
1500
900
975
1050
1125
1200
1275
1350
1425
1500
0.44
0.34
0.24
0.15
0.07
--------0.60
0.49
0.38
0.28
0.18
0.09
------0.93
0.81
0.70
0.58
0.47
0.36
0.25
0.14
--1.15
1.07
0.97
0.86
0.74
0.61
0.48
0.35
0.23
1.10
1.00
0.90
0.82
0.75
0.70
0.67
0.60
0.62
0.19
0.18
0.17
0.16
0.16
--------0.24
0.23
0.22
0.21
0.20
0.19
------0.36
0.35
0.34
0.33
0.31
0.30
0.29
0.27
--0.44
0.45
0.46
0.46
0.43
0.41
0.40
0.39
0.37
0.51
0.52
0.54
0.57
0.59
0.61
0.64
0.67
0.69
50HCQ
Table 16 – 50HCQA04 ELECTRIC DRIVE, X13
MOTOR, 3 TON HORIZONTAL SUPPLY
APPENDIX III. FAN PERFORMANCE (cont.)
Table 18 – 50HCQA05 ELECTRIC DRIVE, X13
MOTOR, 4 TON HORIZONTAL SUPPLY
SPEED
(TORQUE)
TAP
50HCQ
1
2
3
4
5
CFM
ESP
BHP
1200
1300
1400
1500
1600
1700
1800
1900
2000
1200
1300
1400
1500
1600
1700
1800
1900
2000
1200
1300
1400
1500
1600
1700
1800
1900
2000
1200
1300
1400
1500
1600
1700
1800
1900
2000
1200
1300
1400
1500
1600
1700
1800
1900
2000
0.93
0.80
0.66
0.51
0.36
0.22
0.08
----1.04
0.91
0.76
0.61
0.45
0.30
0.16
0.04
--0.98
0.91
0.82
0.71
0.58
0.45
0.31
0.16
0.03
0.98
0.92
0.86
0.79
0.70
0.62
0.52
0.37
0.21
1.02
0.97
0.92
0.87
0.82
0.77
0.71
0.65
0.58
0.48
0.46
0.44
0.41
0.39
0.36
0.33
----0.53
0.51
0.60
0.60
0.57
0.54
0.51
0.48
0.45
0.58
0.59
0.60
0.60
0.57
0.54
0.51
0.48
0.45
0.60
0.63
0.66
0.71
0.70
0.71
0.71
0.69
0.65
0.61
0.65
0.68
0.68
0.76
0.76
0.84
0.89
0.93
Table 19 – 50HCQA05 ELECTRIC DRIVE, X13
MOTOR, 4 TON VERTICAL SUPPLY
SPEED
(TORQUE)
TAP
1
2
3
4
5
50
CFM
ESP
BHP
1200
1300
1400
1500
1600
1700
1800
1900
2000
1200
1300
1400
1500
1600
1700
1800
1900
2000
1200
1300
1400
1500
1600
1700
1800
1900
2000
1200
1300
1400
1500
1600
1700
1800
1900
2000
1200
1300
1400
1500
1600
1700
1800
1900
2000
0.87
0.73
0.59
0.53
0.27
0.12
------0.96
0.84
0.69
0.53
0.37
0.21
0.06
----1.13
1.06
0.98
0.88
0.76
0.62
0.47
0.31
0.15
1.16
1.12
1.07
1.00
0.91
0.80
0.67
0.52
0.35
1.16
1.11
1.01
0.91
0.96
0.91
0.86
0.80
0.74
0.43
0.41
0.39
0.37
0.34
0.33
------0.48
0.46
0.44
0.41
0.39
0.36
0.34
----0.53
0.53
0.54
0.56
0.54
0.52
0.50
0.47
0.45
0.57
0.59
0.62
0.67
0.66
0.67
0.67
0.63
0.61
0.59
0.63
0.67
0.67
0.75
0.75
0.83
0.87
0.91
APPENDIX III. FAN PERFORMANCE (cont.)
SPEED
(TORQUE)
TAP
1
2
3
4
5
CFM
ESP
BHP
1500
1625
1750
1875
2000
2125
2250
2375
2500
1500
1625
1750
1875
2000
2125
2250
2375
2500
1500
1625
1750
1875
2000
2125
2250
2375
2500
1500
1625
1750
1875
2000
2125
2250
2375
2500
1500
1625
1750
1875
2000
2125
2250
2375
2500
1.37
1.22
0.08
------------0.54
0.37
0.20
0.04
----------1.28
1.10
0.90
0.68
0.47
0.27
0.10
----1.46
1.32
1.16
0.96
0.76
0.54
0.33
0.14
0.00
1.52
1.42
1.16
0.96
1.00
0.82
0.62
0.40
0.16
0.74
0.73
0.70
------------0.44
0.41
0.38
0.35
----------0.83
0.81
0.78
0.74
0.70
0.66
0.62
----0.94
0.92
0.96
0.95
0.91
0.86
0.82
0.78
0.72
0.97
1.01
1.05
1.09
1.09
1.06
1.02
0.98
0.93
Table 21 – 50HCQA06 ELECTRIC DRIVE, X13
MOTOR, 5 TON VERTICAL SUPPLY
SPEED
(TORQUE)
TAP
1
2
3
4
5
51
CFM
ESP
BHP
1500
1625
1750
1875
2000
2125
2250
2375
2500
1500
1625
1750
1875
2000
2125
2250
2375
2500
1500
1625
1750
1875
2000
2125
2250
2375
2500
1500
1625
1750
1875
2000
2125
2250
2375
2500
1500
1625
1750
1875
2000
2125
2250
2375
2500
0.27
0.13
--------------0.42
0.25
0.08
------------1.11
0.91
0.70
0.50
0.30
0.12
------1.29
1.13
0.95
0.74
0.52
0.30
0.11
----1.36
1.24
0.95
0.74
0.74
0.53
0.31
0.08
--- 0.14
0.32
0.30
--------------0.40
0.37
0.34
------------0.79
0.76
0.74
0.70
0.67
0.63
------0.90
0.88
0.91
0.88
0.84
0.80
0.77
----0.94
0.99
1.02
1.05
1.03
0.99
0.94
0.90
0.86
50HCQ
Table 20 – 50HCQA06 ELECTRIC DRIVE, X13
MOTOR, 5 TON HORIZONTAL SUPPLY
APPENDIX III. FAN PERFORMANCE (cont.)
Table 22 – 50HCQA04
CFM
50HCQ
900
975
1050
1125
1200
1275
1350
1425
1500
3 TON HORIZONTAL SUPPLY
BHP
0.13
0.15
0.18
0.20
0.23
0.26
0.30
0.34
0.38
AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
707
0.23
817
0.34
913
727
0.25
835
0.37
929
747
0.28
853
0.40
946
768
0.31
872
0.43
964
790
0.34
892
0.47
982
812
0.38
912
0.51
1001
835
0.42
933
0.55
1020
859
0.46
955
0.60
1040
883
0.51
977
0.65
1061
BHP
0.47
0.50
0.53
0.57
0.61
0.65
0.70
0.75
0.80
RPM
999
1015
1030
1047
1064
1082
1100
1119
1138
BHP
0.77
0.80
0.84
0.88
0.92
0.97
1.02
1.08
1.14
RPM
1151
1165
1180
1195
1210
1226
1243
1260
1278
AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG)
1.4
1.6
1.8
BHP
RPM
BHP
RPM
0.93
1220
1.11
1284
0.97
1233
1.15
1297
1.01
1247
1.19
1311
1.05
1261
1.23
1325
1.10
1276
1.28
1339
1.15
1292
1.33
1354
1.20
1308
1.39
1370
1.26
1325
1.45
1386
1.33
1342
1.52
1403
BHP
1.30
1.33
1.38
1.42
1.47
1.53
1.59
1.65
1.72
RPM
1346
1358
1371
1385
1399
1414
1429
1444
1461
BHP
0.15
0.17
0.19
0.22
0.25
0.29
0.33
0.37
0.42
AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
740
0.25
867
0.37
981
758
0.28
881
0.40
991
777
0.30
896
0.43
1003
797
0.34
912
0.47
1017
818
0.37
930
0.51
1032
841
0.41
949
0.55
1048
864
0.46
968
0.60
1065
888
0.50
989
0.65
1083
913
0.56
1011
0.71
1103
BHP
0.52
0.55
0.58
0.62
0.66
0.71
0.76
0.81
0.87
RPM
1084
1092
1102
1113
1126
1140
1155
1171
1188
BHP
0.86
0.89
0.92
0.97
1.01
1.06
1.12
1.18
1.24
AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG)
1.4
1.6
1.8
BHP
RPM
BHP
RPM
1.05
1354
1.25
1434
1.08
1358
1.29
1437
1.12
1363
1.32
1441
1.16
1370
1.37
1447
1.21
1378
1.42
1454
1.26
1387
1.47
1462
1.32
1397
1.53
1471
1.38
1409
1.59
1481
1.45
1421
1.66
1492
BHP
1.47
1.51
1.54
1.59
1.64
1.69
1.75
1.82
1.89
RPM
1511
1513
1516
1520
1526
1533
1541
–
–
0.2
RPM
574
597
621
646
671
696
723
749
776
1.0
BHP
0.61
0.64
0.68
0.72
0.76
0.81
0.86
0.91
0.97
Med static
High static
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
1.2
RPM
1078
1093
1108
1123
1140
1157
1174
1192
1210
2.0
BHP
1.49
1.53
1.58
1.62
1.68
1.73
1.80
1.86
1.93
Med static
High static
Table 23 – 50HCQA04
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
3 TON VERTICAL SUPPLY
0.2
RPM
594
618
642
668
695
722
750
778
807
1.0
BHP
0.68
0.71
0.75
0.79
0.83
0.88
0.93
0.99
1.05
Med static
High static
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
1.2
RPM
1180
1186
1194
1204
1215
1227
1240
1254
1270
RPM
1269
1275
1281
1289
1298
1309
1321
1333
1347
2.0
BHP
1.70
1.74
1.78
1.82
1.87
1.92
1.99
–
–
Med static
High static
Bold Face indicates field --- supplied drive
1. Recommend using field --- supplied fan pulley (part no. KR11AD561), motor pulley (part no. KR11HY181) and belt (part no. KR29AF041).
52
APPENDIX III. FAN PERFORMANCE (cont.)
Table 24 – 50HCQA05
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
4 TON HORIZONTAL SUPPLY
0.2
RPM
630
659
689
720
752
784
816
849
882
BHP
0.20
0.24
0.28
0.33
0.38
0.44
0.50
0.58
0.66
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
755
0.31
859
0.43
949
781
0.36
883
0.48
972
808
0.40
908
0.53
995
836
0.46
933
0.59
1020
864
0.52
960
0.66
1044
893
0.58
986
0.73
1070
922
0.65
1014
0.81
1096
952
0.73
1042
0.90
1122
982
0.82
1070
0.99
1149
BHP
0.56
0.61
0.67
0.74
0.81
0.89
0.97
1.07
1.17
RPM
1030
1052
1075
1098
1121
1146
1171
1196
1222
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
0.99
1237
1.15
1298
1.06
1258
1.23
1318
1.14
1278
1.31
1338
1.22
1299
1.39
1359
1.31
1321
1.49
1380
1.40
1344
1.59
1402
1.50
1366
1.69
1424
1.61
1390
1.81
1447
1.73
1413
1.93
1470
BHP
1.32
1.40
1.48
1.57
1.67
1.78
1.89
2.01
2.14
RPM
1356
1375
1395
1416
1437
1458
1480
1502
1525
1.0
BHP
0.70
0.76
0.82
0.89
0.97
1.05
1.14
1.24
1.35
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
1.2
RPM
1104
1125
1147
1170
1193
1216
1240
1265
1290
1.4
50HCQ
Med static
High static
2.0
BHP
0.84
0.91
0.98
1.05
1.13
1.22
1.32
1.43
1.54
RPM
1173
1194
1215
1237
1259
1282
1305
1329
1353
BHP
0.25
0.29
0.34
0.40
0.47
0.54
0.62
0.71
0.81
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
800
0.36
897
0.48
982
832
0.42
928
0.55
1011
865
0.48
958
0.61
1041
898
0.54
990
0.69
1071
932
0.62
1022
0.77
1102
966
0.70
1055
0.86
1133
1001
0.79
1088
0.96
1165
1037
0.89
1121
1.07
1197
1073
0.99
1156
1.18
1230
BHP
0.61
0.68
0.76
0.84
0.93
1.03
1.13
1.25
1.37
RPM
1058
1086
1115
1144
1174
1205
1235
1267
1299
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.03
1252
1.18
1309
1.12
1279
1.28
1336
1.22
1306
1.38
1362
1.32
1334
1.49
1389
1.43
1362
1.61
1417
1.55
1390
1.74
1445
1.68
1419
1.87
1474
1.82
1449
2.02
1503
1.97
1478
2.18
1532
BHP
1.34
1.44
1.55
1.67
1.79
1.93
2.07
2.22
2.38
RPM
1363
1389
1416
1443
1470
1498
1526
-----
BHP
1.49
1.58
1.67
1.76
1.86
1.97
2.09
2.22
2.35
Med static
High static
Table 25 – 50HCQA05
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
4 TON VERTICAL SUPPLY
0.2
RPM
682
717
753
789
826
863
901
939
978
1.0
BHP
0.75
0.82
0.91
1.00
1.09
1.20
1.31
1.44
1.57
Med static
High static
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
1.2
RPM
1128
1155
1183
1212
1241
1271
1301
1331
1362
1.4
BHP
0.89
0.97
1.06
1.16
1.26
1.37
1.50
1.63
1.77
RPM
1192
1219
1247
1275
1303
1332
1362
1392
1422
Med static
High static
53
2.0
BHP
1.50
1.61
1.72
1.85
1.98
2.12
2.27
-----
APPENDIX III. FAN PERFORMANCE (cont.)
Table 26 – 50HCQA06
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
5 TON HORIZONTAL SUPPLY
0.2
RPM
725
765
806
847
889
931
974
1018
1061
BHP
0.33
0.40
0.48
0.57
0.66
0.78
0.90
1.03
1.19
0.4
RPM
840
876
912
950
988
1027
1067
1107
1148
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.46
937
0.60
1023
0.54
970
0.68
1054
0.63
1004
0.78
1087
0.72
1039
0.88
1120
0.83
1075
1.00
1154
0.95
1112
1.13
1189
1.08
1149
1.27
1224
1.23
1187
1.43
1261
1.39
1226
1.59
1297
BHP
0.75
0.84
0.94
1.05
1.18
1.31
1.46
1.63
1.81
RPM
1101
1131
1162
1194
1226
1260
1294
1329
1364
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.23
1302
1.40
1361
1.34
1329
1.52
1388
1.46
1358
1.65
1416
1.60
1387
1.79
1445
1.74
1417
1.95
1474
1.90
1447
2.11
1504
2.08
1479
2.29
1534
2.27
1511
2.49
1566
2.47
1543
2.70
---
BHP
1.58
1.71
1.84
1.99
2.15
2.33
2.51
2.72
---
RPM
1418
1444
1472
1499
1528
1557
1587
-----
1.0
BHP
0.90
1.00
1.11
1.23
1.36
1.50
1.66
1.84
2.02
50HCQ
Med static
High static
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
1.2
RPM
1172
1201
1231
1262
1294
1326
1359
1393
1427
1.4
2.0
BHP
1.06
1.16
1.28
1.41
1.55
1.70
1.87
2.05
2.24
RPM
1239
1267
1296
1326
1357
1388
1420
1453
1487
BHP
0.41
0.49
0.59
0.70
0.82
0.96
1.11
1.28
1.47
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
902
0.55
993
0.69
1074
945
0.64
1034
0.80
1113
988
0.75
1075
0.92
1153
1033
0.87
1117
1.05
1193
1078
1.00
1160
1.19
1235
1124
1.15
1204
1.35
1277
1170
1.32
1248
1.53
1319
1217
1.50
1293
1.72
1363
1265
1.70
1339
1.93
1406
BHP
0.85
0.96
1.09
1.23
1.39
1.56
1.74
1.95
2.17
RPM
1147
1185
1223
1263
1303
1343
1385
1427
1470
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.33
1336
1.50
1392
1.47
1371
1.65
1427
1.63
1407
1.81
1462
1.80
1444
1.99
1498
1.98
1482
2.19
1535
2.18
1520
2.40
1573
2.40
1559
2.62
1611
2.63
1598
2.87
--2.89
-------
BHP
1.67
1.83
2.01
2.19
2.40
2.62
2.85
-----
RPM
1445
1479
1514
1550
1586
1623
-------
BHP
1.77
1.90
2.04
2.20
2.36
2.55
2.74
-----
Med static
High static
Table 27 – 50HCQA06
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
5 TON VERTICAL SUPPLY
0.2
RPM
794
840
888
936
984
1033
1083
1133
1183
1.0
BHP
1.00
1.13
1.26
1.41
1.58
1.76
1.96
2.17
2.41
Med static
High static
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
1.2
RPM
1214
1251
1289
1327
1366
1406
1446
1487
1529
1.4
BHP
1.16
1.30
1.44
1.60
1.78
1.97
2.18
2.40
2.64
RPM
1277
1313
1350
1387
1426
1464
1504
1544
1585
Med static
High static
54
2.0
BHP
1.85
2.02
2.20
2.40
2.61
2.84
-------
APPENDIX III. FAN PERFORMANCE (cont.)
Table 28 – 50HCQA07
1800
1950
2100
2250
2400
2550
2700
2850
3000
0.2
RPM
415
431
448
465
483
501
519
538
557
0.4
BHP
0.28
0.32
0.38
0.43
0.49
0.56
0.64
0.72
0.82
Standard Static
CFM
1800
1950
2100
2250
2400
2550
2700
2850
3000
RPM
510
525
540
555
571
587
603
620
637
Medium Static
1.2
RPM
770
782
794
806
819
832
845
859
873
1.4
BHP
1.31
1.40
1.50
1.60
1.71
1.83
1.96
2.10
2.24
Standard Static
RPM
821
832
844
856
868
881
894
907
921
Medium Static
1800
1950
2100
2250
2400
2550
2700
2850
3000
BHP
0.33
0.39
0.45
0.53
0.61
0.71
0.81
0.93
1.06
Standard Static
CFM
1800
1950
2100
2250
2400
2550
2700
2850
3000
Standard Static
RPM
955
966
977
988
1000
1012
1024
1036
1049
2.0
BHP
2.36
2.49
2.61
2.75
2.89
3.05
3.21
3.38
3.56
High Static
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
534
0.50
609
0.70
676
552
0.57
625
0.77
690
571
0.64
642
0.86
706
591
0.73
660
0.95
722
611
0.82
678
1.05
739
631
0.93
697
1.17
756
652
1.04
716
1.29
774
674
1.17
736
1.43
792
696
1.31
756
1.58
811
Medium Static
1.2
RPM
791
804
818
832
847
862
878
895
912
BHP
2.09
2.20
2.32
2.45
2.58
2.73
2.88
3.05
3.22
BHP
1.08
1.16
1.25
1.34
1.45
1.56
1.68
1.80
1.94
6 TON VERTICAL SUPPLY
0.2
RPM
446
467
489
511
534
558
581
605
630
RPM
715
727
740
753
766
779
793
807
822
High Static
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.56
868
1.82
913
1.66
879
1.92
924
1.76
891
2.03
935
1.87
903
2.15
947
1.99
915
2.28
958
2.12
927
2.42
971
2.26
940
2.57
983
2.41
953
2.72
995
2.56
966
2.89
1008
Table 29 – 50HCQA07
CFM
1.0
BHP
0.85
0.93
1.01
1.10
1.19
1.29
1.40
1.52
1.64
1.4
BHP
1.39
1.49
1.59
1.71
1.83
1.97
2.12
2.28
2.46
RPM
843
855
868
882
896
910
926
941
958
Medium Static
1.0
BHP
0.91
0.99
1.08
1.19
1.30
1.42
1.55
1.70
1.86
RPM
736
750
764
779
795
811
828
845
863
BHP
2.22
2.34
2.46
2.59
2.74
2.90
3.07
3.25
3.45
RPM
981
992
1003
1015
1028
1041
1055
1069
1083
BHP
1.14
1.23
1.33
1.44
1.56
1.69
1.83
1.98
2.15
High Static
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.65
892
1.93
938
1.76
903
2.04
949
1.87
915
2.16
961
1.99
928
2.29
973
2.12
942
2.43
986
2.27
956
2.58
999
2.42
971
2.74
1013
2.59
986
2.92
1028
2.78
1001
3.11
1043
High Static
55
2.0
BHP
2.53
2.65
2.78
2.92
3.07
3.23
3.41
3.60
3.80
50HCQ
CFM
6 TON HORIZONTAL SUPPLY
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.46
588
0.65
655
0.51
601
0.71
668
0.57
615
0.78
681
0.64
629
0.86
694
0.71
644
0.94
708
0.79
659
1.04
722
0.88
674
1.14
737
0.98
689
1.24
751
1.08
705
1.36
766
APPENDIX III. FAN PERFORMANCE (cont.)
Table 30 – 50HCQD08
CFM
1800
1950
2100
2250
2400
2550
2700
2850
3000
7.5 TON HORIZONTAL SUPPLY
0.2
RPM
415
431
448
465
483
501
519
538
557
0.4
BHP
0.28
0.32
0.38
0.43
0.49
0.56
0.64
0.72
0.82
50HCQ
Standard Static
CFM
1800
1950
2100
2250
2400
2550
2700
2850
3000
RPM
510
525
540
555
571
587
603
620
637
Medium Static
1.2
RPM
770
782
794
806
819
832
845
859
873
1.4
BHP
1.31
1.40
1.50
1.60
1.71
1.83
1.96
2.10
2.24
Standard Static
RPM
821
832
844
856
868
881
894
907
921
Medium Static
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.46
588
0.65
655
0.51
601
0.71
668
0.57
615
0.78
681
0.64
629
0.86
694
0.71
644
0.94
708
0.79
659
1.04
722
0.88
674
1.14
737
0.98
689
1.24
751
1.08
705
1.36
766
1800
1950
2100
2250
2400
2550
2700
2850
3000
BHP
0.33
0.39
0.45
0.53
0.61
0.71
0.81
0.93
1.06
Standard Static
CFM
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.56
868
1.82
913
1.66
879
1.92
924
1.76
891
2.03
935
1.87
903
2.15
947
1.99
915
2.28
958
2.12
927
2.42
971
2.26
940
2.57
983
2.41
953
2.72
995
2.56
966
2.89
1008
1800
1950
2100
2250
2400
2550
2700
2850
3000
Standard Static
RPM
955
966
977
988
1000
1012
1024
1036
1049
2.0
BHP
2.36
2.49
2.61
2.75
2.89
3.05
3.21
3.38
3.56
High Static
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
534
0.50
609
0.70
676
552
0.57
625
0.77
690
571
0.64
642
0.86
706
591
0.73
660
0.95
722
611
0.82
678
1.05
739
631
0.93
697
1.17
756
652
1.04
716
1.29
774
674
1.17
736
1.43
792
696
1.31
756
1.58
811
Medium Static
1.2
RPM
791
804
818
832
847
862
878
895
912
BHP
2.09
2.20
2.32
2.45
2.58
2.73
2.88
3.05
3.22
BHP
1.08
1.16
1.25
1.34
1.45
1.56
1.68
1.80
1.94
7.5 TON VERTICAL SUPPLY
0.2
RPM
446
467
489
511
534
558
581
605
630
RPM
715
727
740
753
766
779
793
807
822
High Static
Table 31 – 50HCQD08
CFM
1.0
BHP
0.85
0.93
1.01
1.10
1.19
1.29
1.40
1.52
1.64
1.4
BHP
1.39
1.49
1.59
1.71
1.83
1.97
2.12
2.28
2.46
RPM
843
855
868
882
896
910
926
941
958
Medium Static
1.0
BHP
0.91
0.99
1.08
1.19
1.30
1.42
1.55
1.70
1.86
RPM
736
750
764
779
795
811
828
845
863
BHP
2.22
2.34
2.46
2.59
2.74
2.90
3.07
3.25
3.45
RPM
981
992
1003
1015
1028
1041
1055
1069
1083
BHP
1.14
1.23
1.33
1.44
1.56
1.69
1.83
1.98
2.15
High Static
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.65
892
1.93
938
1.76
903
2.04
949
1.87
915
2.16
961
1.99
928
2.29
973
2.12
942
2.43
986
2.27
956
2.58
999
2.42
971
2.74
1013
2.59
986
2.92
1028
2.78
1001
3.11
1043
High Static
56
2.0
BHP
2.53
2.65
2.78
2.92
3.07
3.23
3.41
3.60
3.80
APPENDIX III. FAN PERFORMANCE (cont.)
CFM
1913
2125
2338
2550
2763
2975
3188
3400
3613
3825
4038
4250
8.5 TON HORIZONTAL SUPPLY
0.2
RPM
397
419
443
468
493
520
547
575
603
631
660
689
BHP
0.21
0.26
0.32
0.39
0.47
0.57
0.68
0.80
0.94
1.09
1.26
1.45
Standard Static
CFM
1913
2125
2338
2550
2763
2975
3188
3400
3613
3825
4038
4250
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
492
0.31
575
0.43
652
508
0.37
587
0.49
660
526
0.44
602
0.57
671
546
0.52
618
0.66
684
567
0.61
635
0.76
699
589
0.72
654
0.87
716
613
0.83
675
1.00
733
637
0.96
696
1.14
752
662
1.11
719
1.29
773
688
1.27
742
1.46
794
714
1.45
766
1.65
816
741
1.65
790
1.86
838
Medium Static
1.2
RPM
787
791
798
806
817
829
843
858
874
891
910
930
Standard Static
1.4
BHP
0.81
0.90
1.00
1.11
1.24
1.37
1.53
1.69
1.87
2.07
2.28
2.51
RPM
849
851
856
863
871
882
894
907
922
938
955
973
Medium Static
1.0
BHP
0.55
0.62
0.71
0.80
0.91
1.03
1.17
1.31
1.48
1.66
1.85
2.07
RPM
722
728
737
747
760
774
789
806
824
843
864
885
BHP
1.24
1.36
1.48
1.62
1.77
1.93
2.10
2.29
2.49
2.71
2.95
3.21
RPM
1016
1014
1015
1018
1022
1028
1036
1046
1057
1069
1083
1097
BHP
0.67
0.76
0.85
0.96
1.07
1.20
1.34
1.50
1.67
1.86
2.06
2.29
50HCQ
Table 32 – 50HCQD09
High Static
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
0.95
907
1.09
963
1.05
908
1.20
962
1.16
911
1.32
964
1.28
916
1.45
968
1.41
924
1.59
974
1.55
932
1.74
981
1.71
943
1.90
990
1.88
955
2.09
1001
2.07
968
2.28
1013
2.28
983
2.49
1027
2.50
999
2.72
1041
2.74
1015
2.97
1057
High Static
57
2.0
BHP
1.40
1.52
1.65
1.80
1.95
2.12
2.30
2.50
2.71
2.94
3.19
3.45
APPENDIX III. FAN PERFORMANCE (cont.)
Table 33 – 50HCQD09
50HCQ
CFM
1913
2125
2338
2550
2763
2975
3188
3400
3613
3825
4038
4250
8.5 TON VERTICAL SUPPLY
0.2
RPM
416
441
468
495
524
552
582
611
641
672
702
733
BHP
0.23
0.28
0.35
0.43
0.53
0.63
0.76
0.89
1.05
1.22
1.41
1.62
Standard Static
CFM
1913
2125
2338
2550
2763
2975
3188
3400
3613
3825
4038
4250
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
501
0.32
572
0.42
635
523
0.39
592
0.50
653
546
0.47
613
0.59
672
570
0.56
634
0.70
693
595
0.67
657
0.81
714
620
0.79
681
0.94
736
647
0.92
705
1.08
759
674
1.07
730
1.24
782
701
1.23
756
1.42
806
729
1.42
782
1.61
831
758
1.62
809
1.83
857
787
1.84
836
2.06
883
Medium Static
1.2
RPM
743
759
777
795
814
834
855
876
898
921
944
968
Standard Static
1.4
BHP
0.73
0.84
0.96
1.09
1.24
1.40
1.57
1.76
1.97
2.20
2.45
2.71
RPM
792
807
824
841
859
878
898
919
940
962
984
1007
Medium Static
1.0
BHP
0.52
0.61
0.71
0.83
0.95
1.09
1.25
1.42
1.60
1.81
2.03
2.28
RPM
691
708
727
746
766
787
808
831
854
877
901
926
BHP
1.06
1.19
1.34
1.50
1.68
1.86
2.07
2.29
2.53
2.79
3.07
3.36
RPM
921
935
950
965
982
999
1017
1036
1055
1075
1096
1117
BHP
0.63
0.73
0.84
0.96
1.09
1.24
1.41
1.59
1.79
2.00
2.24
2.49
High Static
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
0.84
837
0.95
880
0.96
852
1.07
894
1.08
868
1.21
910
1.23
885
1.36
926
1.38
902
1.53
943
1.55
921
1.71
961
1.74
940
1.90
979
1.94
960
2.12
998
2.16
980
2.34
1018
2.40
1001
2.59
1039
2.65
1023
2.86
1060
2.93
1045
3.15
1081
High Static
58
2.0
BHP
1.17
1.31
1.47
1.64
1.82
2.02
2.24
2.47
2.72
2.99
3.27
3.58
APPENDIX III. FAN PERFORMANCE (cont.)
0.2
CFM
3000
3250
3500
3750
4000
4250
4500
4750
5000
10 TON HORIZONTAL SUPPLY
RPM
335
350
365
381
397
413
429
445
462
BHP
0.32
0.38
0.45
0.53
0.61
0.70
0.81
0.92
1.04
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
421
0.51
500
0.74
572
430
0.58
505
0.81
575
441
0.65
512
0.89
579
452
0.74
520
0.98
584
464
0.83
529
1.08
590
477
0.93
538
1.19
598
491
1.05
549
1.31
606
505
1.17
561
1.44
615
519
1.30
573
1.58
625
1.0
BHP
1.00
1.08
1.16
1.26
1.36
1.47
1.60
1.73
1.88
RPM
637
640
642
645
650
655
661
667
675
BHP
1.29
1.37
1.46
1.56
1.67
1.78
1.91
2.05
2.21
BHP
2.59
2.71
2.84
2.97
3.11
3.25
3.40
3.56
3.73
2.0
RPM
891
895
898
900
902
903
905
906
908
BHP
2.94
3.08
3.22
3.36
3.51
3.66
3.82
3.99
4.16
50HCQ
Table 34 – 50HCQD12
std static --- 440--- 609 rpm, 1.9 HP (motor is 2.4 HP 3 ph)
med static --- 547--- 757 rpm, 2.9 HP (motor is 2.9 HP 3 ph)
high static --- 762--- 963 rpm, 6.5 HP (motor is 5.0 HP 3 ph)
208v high static--- high efficiency --- 762--- 96355, 6.5 max BHP (motor is 5.00 HP 3 ph)
230v high static--- high efficiency --- 762--- 963, 6.9 max BHP (motor is 5.00 HP 3 ph)
460v high static--- high efficiency --- 762--- 963, 7.0 max BHP (motor is 5.00 HP 3 ph)
575v high static--- high efficiency --- 762--- 963, 8.3 max BHP (motor is 5.00 HP 3 ph)
Bold Face requires standard static drive package with KR11HY153 (1VP34) motor pulley (338 --- 507)
CFM
3000
3250
3500
3750
4000
4250
4500
4750
5000
1.2
RPM
697
699
701
703
706
709
714
719
725
1.4
BHP
1.59
1.68
1.78
1.88
2.00
2.12
2.25
2.40
2.55
RPM
751
753
755
757
759
761
765
768
773
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.91
801
2.24
847
2.01
803
2.35
850
2.12
806
2.47
853
2.23
808
2.59
855
2.35
809
2.72
857
2.48
811
2.86
858
2.62
813
3.00
860
2.77
816
3.15
862
2.93
820
3.32
865
std static --- 440--- 609 rpm, 1.9 HP (motor is 2.4 HP 3 ph)
med static --- 547--- 757 rpm, 2.9 HP (motor is 2.9 HP 3 ph)
high static --- 762--- 963 rpm, 6.5 HP (motor is 5.0 HP 3 ph)
208v high static--- high efficiency --- 762--- 96355, 6.5 max BHP (motor is 5.00 HP 3 ph)
230v high static--- high efficiency --- 762--- 963, 6.9 max BHP (motor is 5.00 HP 3 ph)
460v high static--- high efficiency --- 762--- 963, 7.0 max BHP (motor is 5.00 HP 3 ph)
575v high static--- high efficiency --- 762--- 963, 8.3 max BHP (motor is 5.00 HP 3 ph)
Italics require high static drive package with KR11HY186 (1VM50) motor pulley (684 --- 864)
59
Table 35 – 50HCQD12
CFM
50HCQ
3000
3250
3500
3750
4000
4250
4500
4750
5000
10 Ton VERTICAL SUPPLY
0.2
RPM
383
402
421
441
461
481
502
522
543
BHP
0.39
0.47
0.55
0.65
0.75
0.87
1.01
1.15
1.31
Available External Static Pressure (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
470
0.60
549
0.85
620
483
0.68
559
0.94
629
498
0.78
570
1.04
637
513
0.88
582
1.15
647
529
0.99
594
1.27
657
545
1.12
608
1.41
668
563
1.26
622
1.55
680
581
1.42
637
1.72
693
599
1.59
653
1.90
706
1.0
BHP
1.13
1.22
1.33
1.45
1.58
1.72
1.88
2.05
2.23
RPM
684
692
699
707
716
725
735
746
758
BHP
1.42
1.53
1.65
1.78
1.91
2.06
2.22
2.40
2.59
std static --- 440--- 609 rpm, 1.9 HP (motor is 2.4 HP 3 ph)
med static --- 547--- 757 rpm, 2.9 HP (motor is 2.9 HP 3 ph)
high static --- 762--- 963 rpm, 6.5 HP (motor is 5.0 HP 3 ph)
208v high static--- high efficiency --- 762--- 96355, 6.5 max BHP (motor is 5.00 HP 3 ph)
230v high static--- high efficiency --- 762--- 963, 6.9 max BHP (motor is 5.00 HP 3 ph)
460v high static--- high efficiency --- 762--- 963, 7.0 max BHP (motor is 5.00 HP 3 ph)
575v high static--- high efficiency --- 762--- 963, 8.3 max BHP (motor is 5.00 HP 3 ph)
Bold Face - FIELD SUPPLY DRIVE (motor pulley= KR11HY151, use belt and blower pulley from standard static motor), rpm range=338-507.
Italics - FIELD SUPPLY DRIVE (motor pulley=KR11HY186, blower pulley= KR51BJ413, belt=KR30BE072, use medium static motor) rpm range=684-864.
CFM
3000
3250
3500
3750
4000
4250
4500
4750
5000
1.2
RPM
742
749
756
764
771
780
788
798
808
1.4
BHP
1.73
1.85
1.98
2.12
2.27
2.43
2.60
2.78
2.98
RPM
795
802
809
816
824
831
839
847
856
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
2.05
845
2.38
891
2.19
852
2.54
899
2.33
859
2.69
906
2.48
866
2.86
912
2.64
873
3.03
919
2.81
880
3.21
926
2.99
887
3.40
933
3.18
895
3.60
940
3.38
903
3.81
947
2.0
BHP
2.73
2.89
3.06
3.24
3.42
3.62
3.82
4.03
4.25
RPM
935
943
950
956
963
970
976
983
990
BHP
3.08
3.26
3.45
3.64
3.83
4.04
4.25
4.47
4.71
std static --- 440--- 609 rpm, 1.9 HP (motor is 2.4 HP 3 ph)
med static --- 547--- 757 rpm, 2.9 HP (motor is 2.9 HP 3 ph)
high static --- 762--- 963 rpm, 6.5 HP (motor is 5.0 HP 3 ph)
208v high static--- high efficiency --- 762--- 96355, 6.5 max BHP (motor is 5.00 HP 3 ph)
230v high static--- high efficiency --- 762--- 963, 6.9 max BHP (motor is 5.00 HP 3 ph)
460v high static--- high efficiency --- 762--- 963, 7.0 max BHP (motor is 5.00 HP 3 ph)
575v high static--- high efficiency --- 762--- 963, 8.3 max BHP (motor is 5.00 HP 3 ph)
Underline - FIELD SUPPLY DRIVE (motor pulley=KR11HY194, blower pulley=KR51BJ413, belt=KR30BE072, use high static motor), rpm range=846-1061
60
APPENDIX III. FAN PERFORMANCE (cont.)
Table 36 – PULLEY ADJUSTMENT - MID TIER
04
05
06
07
08
09
12
Motor/Drive
Combo
Motor Pulley Turns Open
2
2.5
3
0
0.5
1
1.5
3.5
4
4.5
5
Medium Static
1251
1208
1165
1121
1078
1035
992
949
905
862
819
High Static
1466
1423
1380
1337
1294
1251
1207
1164
1121
1078
1035
Medium Static
1303
1265
1226
1188
1150
1112
1073
1035
997
958
920
High Static
1466
1423
1380
1337
1294
1251
1207
1164
1121
1078
1035
Medium Static
1380
1349
1317
1286
1254
1223
1192
1160
1129
1097
1066
High Static
1639
1596
1553
1510
1467
1424
1380
1337
1294
1251
1208
Standard Static
Medium Static
High Static
Standard Static
Medium Static
High Static
Standard Static
Medium Static
High Static
Standard Static
Medium Static
High Static
747
949
1102
733
936
1084
652
838
1084
609
757
963
721
927
1083
712
911
1059
633
813
1059
592
736
943
695
906
1063
690
887
1035
614
789
1035
575
715
923
670
884
1044
669
862
1010
594
764
1010
558
694
903
644
863
1025
647
838
986
575
739
986
541
673
883
618
841
1006
626
813
961
556
715
961
525
652
863
592
819
986
604
788
936
537
690
936
508
631
842
566
798
967
583
764
912
518
665
912
491
610
822
541
776
948
561
739
887
498
640
887
474
589
802
515
755
928
540
715
863
479
616
863
457
568
782
489
733
909
518
690
838
460
591
838
440
547
762
Standard Static
Medium Static
NOTE: * Do not set motor pulley above 5 turns open for A or AX belts.
* * Do not set motor pulley below 1 turn open for B or BX section belts.
--- Factory settings
61
50HCQ
03
3 phase 3 phase 3 phase 3 phase 3 phase 3 phase 3 phase 1 phase
Unit
APPENDIX IV. ELECTRICAL INFORMATION
TABLE 37 – 50HCQA04
VOLTAGE
RANGE
V ---Ph---Hz
50HCQ
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
COMP (ea)
OFM (ea)
IFM
MIN
MAX
RLA
LRA
WATTS
FLA
TYPE
230--- 1--- 60
187
253
16.6
79
190
1.0
208--- 3--- 60
187
253
10.4
73
190
1.0
230--- 3--- 60
187
253
10.4
73
190
1.0
460--- 3--- 60
414
506
5.8
38
190
0.5
575--- 3--- 60
518
633
3.8
37
190
0.5
DD--- STD
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
TABLE 38 – 50HCQA05
COMP (ea)
OFM (ea)
7.4
7.4
5.2
5.2
7.4
5.2
5.2
4.0
2.6
2.6
4.0
2.4
2.0
IFM
MIN
MAX
RLA
LRA
WATTS
FLA
TYPE
208--- 1--- 60
187
253
19.8
109
325
1.4
208--- 3--- 60
187
253
13.1
83
325
1.4
230--- 3--- 60
187
253
13.1
83
325
1.4
460--- 3--- 60
414
506
6.1
41
325
0.8
575--- 3--- 60
518
633
4.4
33
325
0.8
DD--- STD
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
TABLE 39 – 50HCQA06
EFF at Full
Load
84%
84%
80%
80%
84%
80%
80%
84%
80%
80%
84%
80%
80%
FLA
7.4
7.4
5.2
5.2
7.4
5.2
5.2
4.0
2.6
2.6
4.0
2.4
2.0
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
VOLTAGE
RANGE
V ---Ph---Hz
FLA
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
VOLTAGE
RANGE
V ---Ph---Hz
EFF at Full
Load
84%
84%
80%
80%
84%
80%
80%
84%
80%
80%
84%
80%
80%
COMP (ea)
OFM (ea)
IFM
MIN
MAX
RLA
LRA
WATTS
FLA
TYPE
208--- 1--- 60
187
253
25.0
134
325
1.4
208--- 3--- 60
187
253
15.9
110
325
1.4
230--- 3--- 60
187
253
15.9
110
325
1.4
460--- 3--- 60
414
506
7.0
52
325
0.8
575--- 3--- 60
518
633
5.1
40
325
0.8
DD--- STD
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
DD--- STD
MED
HIGH
62
EFF at Full
Load
84%
84%
80%
81%
84%
80%
81%
84%
80%
81%
84%
80%
81%
FLA
7.4
7.4
5.2
7.5
7.4
5.2
7.5
4.0
2.6
3.4
4.0
2.0
2.8
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
V ---Ph---Hz
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
VOLTAGE
RANGE
COMP (ea)
OFM (ea)
IFM
MIN
MAX
RLA
LRA
WATTS
FLA
208--- 3--- 60
187
253
19.0
123
325
1.5
230--- 3--- 60
187
253
19.0
123
325
1.5
460--- 3--- 60
414
506
9.7
62
325
0.8
575--- 3--- 60
518
633
7.4
50
325
0.6
TABLE 41 – 50HCQD08
V ---Ph---Hz
VOLTAGE
RANGE
TYPE
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
FLA
5.2
7.5
15.0
5.2
7.5
15.0
2.6
3.4
7.4
2.4
2.8
5.6
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
COMP (Cir 1)
COMP (Cir 2)
OFM (ea)
RLA
LRA
RLA
LRA
WATTS
FLA
MIN
MAX
208--- 3--- 60
187
253
13.1
83
13.1
83
325
1.5
230--- 3--- 60
187
253
13.1
83
13.1
83
325
1.5
460--- 3--- 60
414
506
6.1
41
6.1
41
325
0.8
575--- 3--- 60
518
633
4.4
33
4.4
33
325
0.6
TABLE 42 – 50HCQD08
VOLTAGE
RANGE
EFF at Full
Load
80%
80%
80%
80%
80%
80%
80%
80%
80%
80%
80%
80%
IFM
TYPE
EFF at
Full
Load
FLA
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
80%
80%
81%
80%
80%
81%
80%
80%
81%
80%
80%
81%
5.2
5.2
10.0
5.2
5.2
10.0
2.6
2.6
4.4
2.4
2.0
2.8
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
COMP 1
COMP 2
OFM (ea)
IFM
V ---Ph---Hz
MIN
MAX
RLA
LRA
RLA
LRA
208--- 3--- 60
187
253
13.1
83
13.1
83
230--- 3--- 60
187
253
13.1
83
13.1
83
460--- 3--- 60
414
506
6.1
41
6.1
41
575--- 3--- 60
518
633
4.4
33
4.4
33
63
WATTS
FLA
TYPE
EFF at
Full
Load
FLA
325
325
325
325
325
325
325
325
325
325
325
325
1.5
1.5
1.5
1.5
1.5
1.5
0.8
0.8
0.8
0.6
0.6
0.6
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
84%
77%
82%
84%
77%
82%
79%
77%
82%
81%
80%
84%
5.8
7.1
10.8
5.6
6.8
9.8
2.9
3.8
4.9
2.8
3.5
4.5
50HCQ
TABLE 40 – 50HCQA07
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 43 – 50HCQD09
50HCQ
V ---Ph---Hz
VOLTAGE
RANGE
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
COMP (Cir 1)
COMP (Cir 2)
OFM (ea)
RLA
LRA
RLA
LRA
WATTS
FLA
253
16.0
91
13.7
83
325
6.2
187
253
16.0
91
13.7
83
325
6.2
460--- 3--- 60
414
506
7.0
46
6.2
41
325
3.1
575--- 3--- 60
518
633
5.6
37
4.8
33
325
2.5
MIN
MAX
208--- 3--- 60
187
230--- 3--- 60
TABLE 44 – 50HCQD09
VOLTAGE
RANGE
IFM
TYPE
EFF at
Full
Load
FLA
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
80%
80%
81%
80%
80%
81%
80%
80%
81%
80%
80%
81%
5.2
7.5
10.0
5.2
7.5
10.0
2.6
3.4
4.4
2.0
2.8
2.8
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
COMP 1
COMP 2
OFM (ea)
IFM
V ---Ph---Hz
MIN
MAX
RLA
LRA
RLA
LRA
208--- 3--- 6
0
187
253
16.0
91
13.7
83
230--- 3--- 6
0
187
253
16.0
91
13.7
83
460--- 3--- 6
0
414
506
7.0
46
6.2
41
575--- 3--- 6
0
518
633
5.6
37
4.8
33
64
WATTS
FLA
TYPE
EFF at
Full
Load
FLA
1070
1070
1070
1070
1070
1070
1070
1070
1070
1070
1070
1070
6.2
6.2
6.2
6.2
6.2
6.2
3.1
3.1
3.1
2.5
2.5
2.5
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
84%
85%
82%
84%
85%
82%
79%
85%
82%
80%
84%
84%
5.8
8.6
10.8
5.6
7.8
9.8
2.9
3.8
4.9
3.5
4.5
4.5
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
V ---Ph---Hz
VOLTAGE
RANGE
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
COMP (Cir 1)
COMP (Cir 2)
OFM (ea)
RLA
LRA
RLA
LRA
WATTS
FLA
253
15.6
110
15.9
110
280
1.5
187
253
15.6
110
15.9
110
280
1.5
460--- 3--- 60
414
506
7.7
52
7.7
52
280
0.8
575--- 3--- 60
518
633
5.8
39
5.7
39
280
0.7
MIN
MAX
208--- 3--- 60
187
230--- 3--- 60
TABLE 46 – 50HCQD12
VOLTAGE
RANGE
IFM
TYPE
EFF at
Full
Load
FLA
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
80%
80%
89.5%
80%
80%
89.5%
80%
80%
89.5%
80%
80%
89.5%
5.2
7.5
20.4
5.2
7.5
20.4
2.6
3.4
10.2
2.0
2.8
9.0
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
COMP 1
COMP 2
OFM (ea)
IFM
V ---Ph---Hz
MIN
MAX
RLA
LRA
RLA
LRA
208--- 3--- 60
187
253
15.6
110
15.9
110
230--- 3--- 60
187
253
15.6
110
15.9
110
460--- 3--- 60
414
506
7.7
52
7.7
52
575--- 3--- 60
518
633
5.8
39
5.7
39
65
WATTS
FLA
TYPE
EFF at
Full
Load
FLA
280
280
280
280
280
280
280
280
280
280
280
280
1.5
1.5
1.5
1.5
1.5
1.5
0.8
0.8
0.8
0.7
0.7
0.7
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
STD
MED
HIGH
77%
85%
90%
77%
85%
90%
77%
85%
90%
80%
84%
94%
7.1
8.6
20.4
6.8
7.8
20.4
3.8
3.8
10.2
3.5
4.5
9
50HCQ
TABLE 45 – 50HCQD12
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 47 – 50HCQA04
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
208/
230--- 1--- 60
IFM
TYPE
DD--- STD
50HCQ
DD--- STD
208/
230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
575--- 3--- 60
DD--- STD
MED
HIGH
NOM
(kW)
FLA
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
9.8/13.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
--6.0
8.8
11.5
14.0
--6.0
8.8
11.5
14.0
--6.0
8.8
11.5
14.0
-------
--15.9/18.3
23.5/27.1
31.4/36.3
37.9/43.8
46.9/54.2
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--7.2
10.6
13.8
16.8
--7.2
10.6
13.8
16.8
--7.2
10.6
13.8
16.8
-------
MCA
29.2
49.0/52.0
58.5/63.0
68.4/74.5
76.5/83.9
87.8/96.9
21.4
32.9/34.7
38.4/40.9
44.0/47.5
48.8/53.0
63.2/69.5
19.2
30.7/32.5
36.2/38.7
41.8/45.3
46.6/50.8
61.0/67.3
19.2
30.7/32.5
36.2/38.7
41.8/45.3
46.6/50.8
61.0/67.3
11.8
20.8
25.0
29.0
32.8
10.4
19.4
23.6
27.6
31.4
10.4
19.4
23.6
27.6
31.4
9.3
7.7
7.3
WITHOUT C.O. or UNPWR C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
45
29
88
31.1
45
31
90
60/60
47/50
104/106 50.9/53.9
60/60
49/52
106/108
60/70
56/60
112/115 60.4/64.9
70/70
58/62
114/117
70/80
65/70
119/124 70.3/76.4
80/80
67/73
121/126
80/90
72/79
126/132 78.4/85.8
80/90
75/81
128/134
90/100
83/91
182/196 89.7/98.8
90/100
85/93
184/198
30
22
82
23.3
30
24
84
40/40
32/34
91/93
34.8/36.6
40/40
34/36
93/95
45/45
37/40
96/98
40.3/42.8
45/45
39/42
98/100
45/50
42/46
100/103 45.9/49.4
50/50
45/48
102/105
50/60
47/51
104/107 50.7/54.9
60/60
49/53
106/109
70/70
60/66
115/121 65.1/71.4
70/80
62/68
117/123
25
19
94
21.1
30
21
96
35/40
30/31
103/105 32.6/34.4
40/40
32/33
105/107
40/45
35/37
108/110 38.1/40.6
45/45
37/39
110/112
45/50
40/43
112/115 43.7/47.2
45/50
42/45
114/117
50/60
44/48
116/119 48.5/52.7
50/60
46/50
118/121
70/70
58/63
127/133 62.9/69.2
70/70
60/66
129/135
25
19
105
21.1
30
21
107
35/40
30/31
114/116 32.6/34.4
40/40
32/33
116/118
40/45
35/37
119/121 38.1/40.6
45/45
37/39
121/123
45/50
40/43
123/126 43.7/47.2
45/50
42/45
125/128
50/60
44/48
127/130 48.5/52.7
50/60
46/50
129/132
70/70
58/63
138/144 62.9/69.2
70/70
60/66
140/146
15
12
43
12.8
15
13
44
25
20
50
21.8
25
21
51
25
24
54
26.0
30
25
55
30
28
57
30.0
30
29
58
35
31
60
33.8
35
32
61
15
10
48
11.4
15
11
49
20
19
55
20.4
25
20
56
25
22
59
24.6
25
24
60
30
26
62
28.6
30
27
63
35
30
65
32.4
35
31
66
15
10
54
11.4
15
11
55
20
19
61
20.4
25
20
62
25
22
65
24.6
25
24
66
30
26
68
28.6
30
27
69
35
30
71
32.4
35
31
72
15
10
42
11.2
15
12
44
15
8
45
9.6
15
10
47
15
7
49
9.2
15
9
51
NOTE: See page 133 for table legend and notes.
66
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
208/
DD--- STD
230--- 1--- 60
DD--- STD
208/
230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
575--- 3--- 60
DD--- STD
MED
HIGH
NOM
(kW)
FLA
--3.3/4.4
6.5/8.7
9.8/13.0
13.1/17.4
15.8/21.0
--4.9/6.5
6.5/8.7
12.0/16.0
15.8/21.0
--4.9/6.5
6.5/8.7
12.0/16.0
15.8/21.0
--4.9/6.5
6.5/8.7
12.0/16.0
15.8/21.0
--6.0
11.5
14.0
23.0
--6.0
11.5
14.0
23.0
--6.0
11.5
14.0
23.0
-------
--15.9/18.3
31.4/36.3
46.9/54.2
62.8/72.5
75.8/87.5
--13.6/15.6
18.1/20.9
33.4/38.5
43.8/50.5
--13.6/15.6
18.1/20.9
33.4/38.5
43.8/50.5
--13.6/15.6
18.1/20.9
33.4/38.5
43.8/50.5
--7.2
13.8
16.8
27.7
--7.2
13.8
16.8
27.7
--7.2
13.8
16.8
27.7
-------
MCA
33.6
53.4/56.4
72.8/78.9
92.2/101.3
112.1/124.2
128.3/142.9
25.2
42.2/44.7
47.8/51.3
66.9/73.3
79.9/88.3
23.0
40.0/42.5
45.6/49.1
64.7/71.1
77.7/86.1
23.0
40.0/42.5
45.6/49.1
64.7/71.1
77.7/86.1
12.4
21.4
29.7
33.4
47.1
11.0
20.0
28.3
32.0
45.7
11.0
20.0
28.3
32.0
45.7
10.3
8.7
8.3
WITHOUT C.O. or UNPWR C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
50
33
119
35.5
50
35
121
60/60
51/54
135/137
55.3/58.3
60/60
53/56
137/139
80/80
69/75
150/155
74.7/80.8
80/90
71/77
152/157
100/110
87/95
213/227 94.1/103.2 100/110
89/97
215/229
125/125 105/116 245/264 114.0/126.1 125/150 107/118 247/266
150/150 120/134 271/294 130.2/144.8 150/150 122/136 273/296
30
25
93
27.1
40
27
95
50/50
41/43
107/109
44.1/46.6
50/50
43/45
109/111
50/60
46/49
111/114
49.7/53.2
50/60
48/51
113/116
70/80
64/69
126/132
68.8/75.2
70/80
66/72
128/134
80/90
76/83
181/194
81.8/90.2
90/100
78/85
183/196
30
23
105
24.9
30
25
107
45/50
38/41
119/121
41.9/44.4
50/50
40/43
121/123
50/50
43/47
123/126
47.5/51.0
50/60
46/49
125/128
70/80
61/67
138/144
66.6/73.0
70/80
63/69
140/146
80/90
73/81
193/206
79.6/88.0
80/90
75/83
195/208
30
23
116
24.9
30
25
118
45/50
38/41
130/132
41.9/44.4
50/50
40/43
132/134
50/50
43/47
134/137
47.5/51.0
50/60
46/49
136/139
70/80
61/67
149/155
66.6/73.0
70/80
63/69
151/157
80/90
73/81
204/217
79.6/88.0
80/90
75/83
206/219
15
13
47
13.4
15
14
48
25
21
54
22.4
25
22
55
30
28
61
30.7
35
30
62
35
32
64
34.4
35
33
65
50
44
102
48.1
50
46
103
15
11
52
12.0
15
12
53
25
19
59
21.0
25
20
60
30
27
66
29.3
30
28
67
35
30
69
33.0
35
31
70
50
43
107
46.7
50
44
108
15
11
58
12.0
15
12
59
25
19
65
21.0
25
20
66
30
27
72
29.3
30
28
73
35
30
75
33.0
35
31
76
50
43
113
46.7
50
44
114
15
11
39
12.2
15
13
41
15
9
42
10.6
15
11
44
15
8
46
10.2
15
10
48
NOTE: See page 133 for table legend and notes.
67
50HCQ
TABLE 48 – 50HCQA05
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 49 – 50HCQA06
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
208/
DD--- STD
230--- 1--- 60
50HCQ
DD--- STD
208/
230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
575--- 3--- 60
DD--- STD
MED
HIGH
NOM
(kW)
--4.9/6.5
6.5/8.7
9.8/13.0
13.1/17.4
15.8/21.0
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
--6.0
11.5
14.0
23.0
25.5
--6.0
11.5
14.0
23.0
25.5
--6.0
11.5
14.0
23.0
25.5
-------
FLA
MCA
--40.1
23.5/27.1
69.4/73.9
31.4/36.3
79.3/85.4
46.9/54.2 98.7/107.8
62.8/72.5 118.6/130.7
75.8/87.5 134.8/149.4
--28.7
13.6/15.6
45.7/48.2
21.9/25.3
56.1/60.3
33.4/38.5
70.4/76.8
43.8/50.5
83.4/91.8
55.2/63.8 97.7/108.4
--26.5
13.6/15.6
43.5/46.0
21.9/25.3
53.9/58.1
33.4/38.5
68.2/74.6
43.8/50.5
81.2/89.6
55.2/63.8 95.5/106.2
--28.8
13.6/15.6
45.8/48.3
21.9/25.3
56.2/60.4
33.4/38.5
70.5/76.9
43.8/50.5
83.5/91.9
55.2/63.8 97.8/108.5
--13.6
7.2
22.6
13.8
30.8
16.8
34.6
27.7
48.2
30.7
51.9
--12.2
7.2
21.2
13.8
29.4
16.8
33.2
27.7
46.8
30.7
50.5
--13.0
7.2
22.0
13.8
30.2
16.8
34.0
27.7
47.6
30.7
51.3
--11.2
--9.2
--10.0
WITHOUT C.O. or UNPWR C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
60
39
144
42.0
60
41
146
80/80
66/70
168/171
71.3/75.8
80/80
68/72
170/173
80/100
75/81
175/180
81.2/87.3
90/100
77/83
177/182
100/110
93/101
238/252 100.6/109.7 110/110
95/103
240/254
125/150 111/122 270/289 120.5/132.6 125/150 113/124 272/291
150/150 126/139 296/319 136.7/151.3 150/175 128/142 298/321
40
28
120
30.6
45
31
122
50/60
44/46
134/136
47.6/50.1
60/60
46/49
136/138
60/70
54/58
142/145
58.0/62.2
60/70
56/60
144/147
80/80
67/73
153/159
72.3/78.7
80/80
69/75
155/161
90/100
79/86
208/221
85.3/93.7
90/100
81/89
210/223
100/110
92/102
230/248
99.6/110.3 100/125
94/104
232/250
40
26
143
28.4
40
28
145
50/50
42/44
157/159
45.4/47.9
50/50
44/46
159/161
60/60
51/55
165/168
55.8/60.0
60/60
53/57
167/170
70/80
64/70
176/182
70.1/76.5
80/80
66/72
178/184
90/90
76/84
231/244
83.1/91.5
90/100
78/86
233/246
100/110
89/99
253/271
97.4/108.1 100/110
92/101
255/273
40
29
169
30.7
45
31
171
50/60
44/46
183/185
47.7/50.2
60/60
46/49
185/187
60/70
54/58
191/194
58.1/62.3
60/70
56/60
193/196
80/80
67/73
202/208
72.4/78.8
80/80
69/75
204/210
90/100
79/87
257/270
85.4/93.8
90/100
81/89
259/272
100/110
92/102
279/297
99.7/110.4 100/125
94/104
281/299
20
14
58
14.6
20
15
59
25
22
65
23.6
25
23
66
35
29
72
31.8
35
31
73
35
33
75
35.6
40
34
76
50
45
113
49.2
50
47
114
60
49
119
52.9
60
50
120
15
12
69
13.2
20
13
70
25
20
76
22.2
25
21
77
30
28
83
30.4
35
29
84
35
31
86
34.2
35
32
87
50
44
124
47.8
50
45
125
60
47
130
51.5
60
48
131
15
13
82
14.0
20
14
83
25
21
89
23.0
25
22
90
35
29
96
31.2
35
30
97
35
32
99
35.0
35
33
100
50
45
137
48.6
50
46
138
60
48
143
52.3
60
49
144
15
11
46
13.1
15
14
48
15
9
53
11.1
15
11
55
15
10
64
11.9
15
12
66
NOTE: See page 133 for table legend and notes.
68
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
STD
208/
230--- 3--- 60
MED
HIGH
STD
460--- 3--- 60
MED
HIGH
575--- 3--- 60
STD
MED
HIGH
Nom
(kW)
FLA
--4.9/6.5
7.8/10.4
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.8/10.4
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.8/10.4
12.0/16.0
15.8/21.0
19.9/26.5
--6.0
11.5
14.0
23.0
25.5
--6.0
11.5
14.0
23.0
25.5
--6.0
11.5
14.0
23.0
25.5
-------
--13.6/15.6
21.7/25.0
33.4/38.5
43.8/50.5
55.2/63.8
--13.6/15.6
21.7/25.0
33.4/38.5
43.8/50.5
55.2/63.8
--13.6/15.6
21.7/25.0
33.4/38.5
43.8/50.5
55.2/63.8
--7.2
13.8
16.8
27.7
30.7
--7.2
13.8
16.8
27.7
30.7
--7.2
13.8
16.8
27.7
30.7
-------
MCA
32.0
49.0/51.5
59.1/63.2
73.7/80.1
86.7/95.1
101.0/111.7
34.3
51.3/53.8
61.4/65.5
76.0/82.4
89.0/97.4
103.3/114.0
41.8
58.8/61.3
68.9/73.0
83.5/89.9
96.5/104.9
110.8/121.5
16.3
25.3
33.6
37.3
51.0
54.7
17.1
26.1
34.4
38.1
51.8
55.5
21.1
30.1
38.4
42.1
55.8
59.5
12.9
13.3
16.1
WITHOUT C.O. or UNPWR C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
50
31
148
35.8
50
36
152
60/60
47/49
162/164
52.8/55.3
60/60
51/54
166/168
60/70
56/60
170/173
62.9/67.0
70/70
61/64
174/177
80/90
70/76
181/187
77.5/83.9
80/90
74/80
185/191
90/100
82/89
236/249
90.5/98.9
100/100
86/94
240/253
110/125
95/105
258/276 104.8/115.5 110/125
99/109
262/280
50
34
185
38.1
50
38
189
60/60
50/52
199/201
55.1/57.6
60/60
54/56
203/205
70/70
59/63
207/210
65.2/69.3
70/80
63/67
211/214
80/90
72/78
218/224
79.8/86.2
80/90
77/83
222/228
90/100
84/92
273/286 92.8/101.2 100/110
89/96
277/290
110/125
97/107
295/313 107.1/117.8 110/125 102/112 299/317
60
43
211
45.6
60
47
215
70/70
58/60
225/227
62.6/65.1
70/80
63/65
229/231
80/80
68/71
233/236
72.7/76.8
80/80
72/76
237/240
90/90
81/87
244/250
87.3/93.7
90/100
85/91
248/254
100/110
93/101
299/312 100.3/108.7 110/110
97/105
303/316
125/125 106/116 321/339 114.6/125.3 125/150 110/120 325/343
25
16
75
18.1
25
18
77
30
24
82
27.1
30
26
84
35
32
89
35.4
40
34
91
40
35
92
39.1
40
37
94
60
48
103
52.8
60
50
105
60
51
106
56.5
60
53
108
25
17
94
18.9
25
19
96
30
25
101
27.9
30
27
103
40
33
108
36.2
40
35
110
40
36
111
39.9
45
38
113
60
49
122
53.6
60
51
124
60
52
125
57.3
60
54
127
30
22
107
22.9
30
24
109
35
30
114
31.9
35
32
116
40
37
121
40.2
45
39
123
45
41
124
43.9
45
43
126
60
53
135
57.6
60
55
137
60
57
138
61.3
70
59
140
20
13
61
16.7
20
17
65
20
13
76
17.1
20
17
80
20
16
90
19.9
25
21
94
NOTE: See page 133 for table legend and notes.
69
50HCQ
TABLE 50 – 50HCQA07
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 51 – 50HCQD08
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
50HCQ
STD
208/
230--- 3--- 60
MED
HIGH
STD
460--- 3--- 60
MED
HIGH
STD
575--- 3--- 60
MED
HIGH
Nom
(kW)
FLA
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--17.0
34.0
--17.0
34.0
--17.0
34.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--20.4
40.9
--20.4
40.9
--20.4
40.9
MCA
37.7
64.8/68.9
79.4/85.8
102.3/112.3
121.1/133.9
148.2/165.2
37.7
64.8/68.9
79.4/85.8
102.3/112.3
121.1/133.9
148.2/165.2
42.5
69.6/73.7
84.2/90.6
107.1/117.1
125.9/138.7
153.0/170.0
17.9
38.8
42.7
59.7
67.6
80.7
17.9
38.8
42.7
59.7
67.6
80.7
19.7
40.6
44.5
61.5
69.4
82.5
13.5
39.0
64.6
13.1
38.6
64.2
13.9
39.4
65.0
WITHOUT C.O. or UNPWR C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
50
40
191
41.5
50
44
195
70/70
65/68
213/216
68.6/72.7
70/80
69/73
217/220
80/90
78/84
224/230
83.2/89.6
90/90
82/88
228/234
110/125
99/108
243/251 106.1/116.1 110/125 103/113 247/255
125/150 116/128 258/268 124.9/137.7 125/150 121/132 262/272
150/175 141/157 368/395 152.0/169.0 175/175 146/161 372/399
50
40
202
41.5
50
44
206
70/70
65/68
224/227
68.6/72.7
70/80
69/73
228/231
80/90
78/84
235/241
83.2/89.6
90/90
82/88
239/245
110/125
99/108
254/262 106.1/116.1 110/125 103/113 258/266
125/150 116/128 269/279 124.9/137.7 125/150 121/132 273/283
150/175 141/157 379/406 152.0/169.0 175/175 146/161 383/410
50
45
245
46.3
50
49
249
70/80
70/74
267/270
73.4/77.5
80/80
74/78
271/274
90/100
83/89
278/284
88.0/94.4
90/100
88/94
282/288
110/125 105/114 297/305 110.9/120.9 125/125 109/118 301/309
150/150 122/134 312/322 129.7/142.5 150/150 126/138 316/326
175/175 147/162 422/449 156.8/173.8 175/175 151/167 426/453
20
19
95
19.7
25
21
97
40
38
112
40.6
45
40
114
45
42
115
44.5
45
44
117
60
57
128
61.5
70
59
130
70
65
135
69.4
70
67
137
90
77
195
82.5
90
79
197
20
19
101
19.7
25
21
103
40
38
118
40.6
45
40
120
45
42
121
44.5
45
44
123
60
57
134
61.5
70
59
136
70
65
141
69.4
70
67
143
90
77
201
82.5
90
79
203
25
21
123
21.5
25
23
125
45
40
140
42.4
45
42
142
45
44
143
46.3
50
46
145
70
59
156
63.3
70
61
158
70
67
163
71.2
80
69
165
90
79
223
84.3
90
81
225
15
14
77
17.3
20
19
81
40
38
97
42.8
45
42
101
70
61
118
68.4
70
66
122
15
14
81
16.9
20
18
85
40
37
101
42.4
45
42
105
70
61
122
68.0
70
65
126
20
15
92
17.7
20
19
96
40
38
112
43.2
45
43
116
70
62
133
68.8
70
66
137
NOTE: See page 133 for table legend and notes.
70
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 52 – 50HCQD08
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
IFM
TYPE
STD
208/
230 ---3 ---60
MED
HIGH
460 ---3 ---60
MED
50HCQA06
STD
HIGH
STD
575 ---3 ---60
MED
HIGH
WITHOUT C.O. or UNPWR C.O.
w/ P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MCA
MOCP
FLA
LRA
FLA
LRA
40/40
195
42.1/41.9
50/50
45/44
199
65/69
217/220
69.2/73.1
70/80
70/73
221/224
79/84
228/234
83.8/90.0
90/90
83/89
232/238
100/109
247/255
106.7/116.5
110/125
104/113
251/259
117/129
262/272
125.5/138.1
150/150
121/133
266/276
142/157
372/399
152.6/169.4
175/175
146/162
376/403
42/41
199
43.4/43.1
50/50
46/46
203
67/70
221/224
70.5/74.3
80/80
71/75
225/228
80/86
232/238
85.1/91.2
90/100
85/90
236/242
101/110
251/259
108.0/117.7
110/125
106/114
255/263
118/130
266/276
126.8/139.3
150/150
123/134
270/280
143/159
376/403
153.9/170.6
175/175
148/163
380/407
46/45
249
47.1/46.1
60/50
50/49
253
71/74
271/274
74.2/77.3
80/80
75/78
275/278
84/89
282/288
88.8/94.2
90/100
89/93
286/292
105/114
301/309
111.7/120.7
125/125
110/118
305/313
123/133
316/326
130.5/142.3
150/150
127/138
320/330
148/162
426/453
157.6/173.6
175/175
152/167
430/457
19
97
20.0
25
21
99
38
114
40.9
45
40
116
42
117
44.8
45
44
119
58
130
61.8
70
60
132
65
137
69.7
70
67
139
77
197
82.8
90
79
199
20
100
20.9
25
22
102
39
117
41.8
45
42
119
43
120
45.7
50
45
122
59
133
62.7
70
61
135
66
140
70.6
80
68
142
78
200
83.7
90
80
202
22
125
22.0
25
24
127
41
142
42.9
45
43
144
44
145
46.8
50
46
147
60
158
63.8
70
62
160
67
165
71.7
80
69
167
79
225
84.8
90
81
227
15
79
17.7
20
19
83
38
99
43.2
45
43
103
62
120
68.8
70
66
124
16
83
18.4
20
20
87
39
103
43.9
45
43
107
63
124
69.5
70
67
128
17
92
19.4
25
21
96
40
112
44.9
45
45
116
64
133
70.6
80
68
137
WITHOUT P.E.
Nom
(kW)
FLA
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--17.0
34.0
--17.0
34.0
--17.0
34.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--20.4
40.9
--20.4
40.9
--20.4
40.9
MCA
MOCP
38.3/38.1
65.4/69.3
80.0/86.2
102.9/112.7
121.7/134.3
148.8/165.6
39.6/39.3
66.7/70.5
81.3/87.4
104.2/113.9
123.0/135.5
150.1/166.8
43.3/42.3
70.4/73.5
85.0/90.4
107.9/116.9
126.7/138.5
153.8/169.8
18.2
39.1
43.0
60.0
67.9
81.0
19.1
40.0
43.9
60.9
68.8
81.9
20.2
41.1
45.0
62.0
69.9
83.0
13.9
39.4
65.0
14.6
40.1
65.7
15.6
41.1
66.8
50/50
70/70
90/90
110/125
125/150
150/175
50/50
70/80
90/90
110/125
125/150
175/175
50/50
80/80
90/100
110/125
150/150
175/175
20
40
45
60
70
90
25
40
45
70
70
90
25
45
45
70
70
90
20
40
70
20
45
70
20
45
70
NOTE: See page 133 for table legend and notes.
71
50HCQ
NOM.
V--- Ph--- Hz
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 53 – 50HCQD09
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
50HCQ
STD
208/
230--- 3--- 60
MED
HIGH
STD
460--- 3--- 60
MED
HIGH
STD
575--- 3--- 60
MED
HIGH
Nom
(kW)
FLA
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--17.0
34.0
--17.0
34.0
--17.0
34.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--20.4
40.9
--20.4
40.9
--20.4
40.9
MCA
45.1
72.2/76.4
86.9/93.2
109.7/119.7
128.5/141.4
155.6/172.6
47.4
74.5/78.7
89.2/95.5
112.0/122.0
130.8/143.7
157.9/174.9
49.9
77.0/81.2
91.7/98.0
114.5/124.5
133.3/146.2
160.4/177.4
20.7
41.5
45.4
62.4
70.3
83.4
21.5
42.3
46.2
63.2
71.1
84.2
22.5
43.3
47.2
64.2
72.1
85.2
16.3
41.8
67.4
17.1
42.6
68.2
17.1
42.6
68.2
WITHOUT C.O. or UNPWR C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
60
47
225
48.9
60
52
229
80/80
72/76
247/250
76.0/80.2
80/90
77/80
251/254
90/100
86/92
258/264
90.7/97.0
100/100
90/96
262/268
110/125 107/116 277/285 113.5/123.5 125/125 111/120 281/289
150/150 124/136 292/302 132.3/145.2 150/150 128/140 296/306
175/175 149/165 402/429 159.4/176.4 175/200 153/169 406/433
60
50
262
51.2
60
54
266
80/80
75/79
284/287
78.3/82.5
80/90
79/83
288/291
90/100
88/94
295/301
93.0/99.3
100/100
93/99
299/305
125/125 109/119 314/322 115.8/125.8 125/150 114/123 318/326
150/150 127/138 329/339 134.6/147.5 150/150 131/143 333/343
175/175 152/167 439/466 161.7/178.7 175/200 156/172 443/470
60
53
279
53.7
60
57
283
80/90
78/82
301/304
80.8/85.0
90/90
82/86
305/308
100/100
91/97
312/318 95.5/101.8 100/110
96/101
316/322
125/125 112/121 331/339 118.3/128.3 125/150 117/126 335/343
150/150 129/141 346/356 137.1/150.0 150/150 134/146 350/360
175/200 154/170 456/483 164.2/181.2 175/200 159/174 460/487
25
22
112
22.5
25
24
114
45
41
129
43.3
45
43
131
50
45
132
47.2
50
47
134
70
60
145
64.2
70
62
147
80
67
152
72.1
80
69
154
90
79
212
85.2
90
82
214
25
23
131
23.3
30
25
133
45
42
148
44.1
45
44
150
50
45
151
48.0
50
47
153
70
61
164
65.0
70
63
166
80
68
171
72.9
80
70
173
90
80
231
86.0
90
82
233
25
24
140
24.3
30
26
142
45
43
157
45.1
50
45
159
50
47
160
49.0
50
49
162
70
62
173
66.0
70
64
175
80
69
180
73.9
80
72
182
90
82
240
87.0
90
84
242
20
17
97
20.1
25
22
101
45
41
117
45.6
50
45
121
70
64
138
71.2
80
69
142
20
18
108
20.9
25
22
112
45
42
128
46.4
50
46
132
70
65
149
72.0
80
69
153
20
18
108
20.9
25
22
112
45
42
128
46.4
50
46
132
70
65
149
72.0
80
69
153
NOTE: See page 133 for table legend and notes.
72
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 54 – 50HCQD09
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
IFM
TYPE
STD
208/
230 ---3 ---60
MED
HIGH
STD
460 ---3 ---60
MED
HIGH
STD
575 ---3 ---60
MED
HIGH
WITHOUT C.O. or UNPWR C.O.
w/ P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MCA
MOCP
FLA
LRA
FLA
LRA
48/48
229
49.5/49.3
60/60
52/52
233
73/76
251/254
76.6/80.6
80/90
77/81
255/258
86/92
262/268
91.3/97.4
100/100
91/96
266/272
107/116
281/289
114.1/123.9
125/125
112/121
285/293
125/136
296/306
132.9/145.6
150/150
129/141
300/310
150/165
406/433
160.0/176.8
175/200
154/169
410/437
51/50
259
52.3/51.5
60/60
56/55
263
76/79
281/284
79.4/82.8
80/90
81/83
285/288
90/95
292/298
94.1/99.6
100/100
94/99
296/302
111/119
311/319
116.9/126.1
125/150
115/123
315/323
128/139
326/336
135.7/147.8
150/150
132/143
330/340
153/168
436/463
162.8/179.0
175/200
157/172
440/467
54/53
283
54.5/53.5
60/60
58/57
287
79/81
305/308
81.6/84.8
90/90
83/86
309/312
92/97
316/322
96.3/101.6
100/110
96/101
320/326
113/121
335/343
119.1/128.1
125/150
118/126
339/347
130/141
350/360
137.9/149.8
150/150
135/145
354/364
155/170
460/487
165.0/181.0
175/200
160/174
464/491
22
114
22.8
25
24
116
41
131
43.6
45
43
133
45
134
47.5
50
47
136
60
147
64.5
70
63
149
68
154
72.4
80
70
156
80
214
85.5
90
82
216
23
130
23.7
30
25
132
42
147
44.5
45
44
149
46
150
48.4
50
48
152
62
163
65.4
70
64
165
69
170
73.3
80
71
172
81
230
86.4
90
83
232
24
142
24.8
30
26
144
44
159
45.6
50
46
161
47
162
49.5
50
49
164
63
175
66.5
70
65
177
70
182
74.4
80
72
184
82
242
87.5
90
84
244
19
99
21.6
25
23
103
42
119
47.1
50
47
123
66
140
72.7
80
70
144
20
108
22.6
25
24
112
43
128
48.1
50
48
132
67
149
73.7
80
71
153
20
108
22.6
25
24
112
43
128
48.1
50
48
132
67
149
73.7
80
71
153
WITHOUT P.E.
Nom
(kW)
FLA
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--17.0
34.0
--17.0
34.0
--17.0
34.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--20.4
40.9
--20.4
40.9
--20.4
40.9
MCA
MOCP
45.7/45.5
72.8/76.8
87.5/93.6
110.3/120.1
129.1/141.8
156.2/173.0
48.5/47.7
75.6/79.0
90.3/95.8
113.1/122.3
131.9/144.0
159.0/175.2
50.7/49.7
77.8/81.0
92.5/97.8
115.3/124.3
134.1/146.0
161.2/177.2
21.0
41.8
45.7
62.7
70.6
83.7
21.9
42.7
46.6
63.6
71.5
84.6
23.0
43.8
47.7
64.7
72.6
85.7
17.8
43.3
68.9
18.8
44.3
69.9
18.8
44.3
69.9
60/60
80/80
90/100
125/125
150/150
175/175
60/60
80/80
100/100
125/125
150/150
175/200
60/60
80/90
100/100
125/125
150/150
175/200
25
45
50
70
80
90
25
45
50
70
80
90
25
45
50
70
80
90
20
45
70
25
45
70
25
45
70
NOTE: See page 133 for table legend and notes.
73
50HCQ
NOM.
V--- Ph--- Hz
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 55 – 50HCQD12
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
IFM
V ---PH ---Hz TYPE
50HCQ
STD
208/
230--- 3--- 60
MED
HIGH
STD
460--- 3--- 60
MED
HIGH
STD
575--- 3--- 60
MED
HIGH
NOM
(kW)
FLA
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--12.0
19.9
40.3
52.3
60.2
--12.0
19.9
40.3
52.3
60.2
--12.0
19.9
40.3
52.3
60.2
--9.6
15.9
32.2
41.8
48.1
--9.6
15.9
32.2
41.8
48.1
--9.6
15.9
32.2
41.8
48.1
MCA
45.2
71.3/75.3
88.2/94.8
132.6/145.9
158.6/176.1
175.6/165.5
47.5
73.6/77.6
90.5/97.1
134.9/148.2
160.9/178.4
177.9/167.8
61.5
87.6/91.6
104.5/111.1
148.9/162.3
174.9/192.4
191.9/181.8
22.3
37.3
47.2
72.7
87.7
82.5
23.1
38.1
48.0
73.5
88.5
83.3
30.6
45.6
55.4
80.9
95.9
90.8
17.1
29.1
36.9
57.3
69.3
65.2
17.9
29.9
37.7
58.1
70.1
66.0
24.9
36.9
44.7
65.1
77.1
73.0
WITHOUT C.O. or UNPWR C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
60
47
262
49.0
60
52
266
80/80
71/75
283/286
75.1/79.1
80/80
76/79
287/290
90/100
87/93
296/302
92.0/98.6
100/100
91/97
300/306
150/150 128/140 332/343 136.4/149.7 150/150 132/144 336/347
175/200 152/168 443/471 162.4/179.9 175/200 156/172 447/475
200/175 167/186 471/503 179.4/169.3 200/175 172/190 475/507
60
50
288
51.3
60
54
292
80/80
74/78
309/312
77.4/81.4
80/90
78/82
313/316
100/100
90/96
322/328
94.3/100.9
100/110
94/100
326/332
150/150 130/143 358/369 138.7/152.0 150/175 135/147 362/373
175/200 154/170 469/497 164.7/182.2 175/200 159/175 473/501
200/175 170/188 497/529 181.7/171.6 200/200 174/193 501/533
80
65
324
65.3
80
69
328
100/100
89/93
345/348
91.4/95.4
100/100
93/97
349/352
110/125 104/111 358/364 108.3/114.9 110/125 109/115 362/368
150/175 145/158 394/405 152.7/166.1 175/175 150/162 398/409
175/200 169/185 505/533 178.7/196.2 200/200 174/190 509/537
200/200 185/203 533/565 195.7/185.6 200/200 189/208 537/569
30
23
125
24.1
30
26
127
40
37
137
39.1
40
39
139
50
46
145
49.0
50
48
147
80
70
165
74.5
80
72
167
90
84
230
89.5
90
86
232
90
93
245
84.3
90
95
247
30
24
138
24.9
30
26
140
40
38
150
39.9
40
40
152
50
47
158
49.8
50
49
160
80
71
178
75.3
80
73
180
90
85
243
90.3
100
87
245
90
94
258
85.1
90
96
260
40
32
156
32.4
40
34
158
50
46
168
47.4
50
48
170
60
55
176
57.2
60
57
178
90
79
196
82.7
90
81
198
100
92
261
97.7
100
94
263
100
101
276
92.6
100
104
278
20
18
95
20.9
25
22
99
30
29
105
32.9
35
33
109
40
36
111
40.7
45
41
115
60
55
127
61.1
70
59
131
70
66
179
73.1
80
70
183
70
73
191
69.0
80
78
195
20
19
106
21.7
25
23
110
30
30
116
33.7
35
34
120
40
37
122
41.5
45
42
126
60
56
138
61.9
70
60
142
80
67
190
73.9
80
71
194
70
74
202
69.8
80
79
206
30
26
118
28.7
35
30
122
40
37
128
40.7
45
41
132
45
44
134
48.5
50
49
138
70
63
150
68.9
70
67
154
80
74
202
80.9
90
78
206
80
81
214
76.8
80
86
218
NOTE: See page 133 for table legend and notes.
74
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 56 – 50HCQD12
MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
IFM
TYPE
STD
208/
230 ---3 ---60
MED
HIGH
STD
460 ---3 ---60
MED
HIGH
STD
575 ---3 ---60
MED
HIGH
WITHOUT C.O. or UNPWR C.O.
w/ P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MCA
MOCP
FLA
LRA
FLA
LRA
50/49
259
50.9/50.6
60/60
54/54
263
74/77
280/283
77.0/80.7
80/90
78/81
284/287
89/95
293/299
93.9/100.2
100/110
93/99
297/303
130/142
329/340
138.3/151.3
150/175
134/146
333/344
154/170
440/468
164.3/181.5
175/200
158/174
444/472
170/188
468/500
181.3/170.9
200/175
174/192
472/504
51/50
285
52.4/51.6
60/60
56/55
289
75/78
306/309
78.5/81.7
80/90
80/82
310/313
91/96
319/325
95.4/101.2
100/110
95/100
323/329
132/143
355/366
139.8/152.3
150/175
136/147
359/370
156/171
466/494
165.8/182.5
175/200
160/175
470/498
171/189
494/526
182.8/171.9
200/200
176/193
498/530
65
324
65.3
80
69
328
89/93
345/348
91.4/95.4
100/100
93/97
349/352
104/111
358/364
108.3/114.9
110/125
109/115
362/368
145/158
394/405
152.7/166.1
175/175
150/162
398/409
169/185
505/533
178.7/196.2
200/200
174/190
509/537
185/203
533/565
195.7/185.6
200/200
189/208
537/569
25
124
25.3
30
27
126
39
136
40.3
45
41
138
48
144
50.2
60
50
146
71
164
75.7
80
73
166
85
229
90.7
100
87
231
94
244
85.5
90
96
246
25
137
25.3
30
27
139
39
149
40.3
45
41
151
48
157
50.2
60
50
159
71
177
75.7
80
73
179
85
242
90.7
100
87
244
94
257
85.5
90
96
259
32
156
32.4
40
34
158
46
168
47.4
50
48
170
55
176
57.2
60
57
178
79
196
82.7
90
81
198
92
261
97.7
100
94
263
101
276
92.6
100
104
278
20
97
22.4
25
24
101
31
107
34.4
35
35
111
38
113
42.2
45
42
117
57
129
62.6
70
61
133
68
181
74.6
80
72
185
75
193
70.5
80
79
197
21
106
23.4
25
25
110
32
116
35.4
40
36
120
39
122
43.2
45
43
126
58
138
63.6
70
62
142
69
190
75.6
80
73
194
76
202
71.5
80
81
206
26
118
28.7
35
30
122
37
128
40.7
45
41
132
44
134
48.5
50
49
138
63
150
68.9
70
67
154
74
202
80.9
90
78
206
81
214
76.8
80
86
218
WITHOUT P.E.
Nom
(kW)
FLA
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--12.0
19.9
40.3
52.3
60.2
--12.0
19.9
40.3
52.3
60.2
--12.0
19.9
40.3
52.3
60.2
--9.6
15.9
32.2
41.8
48.1
--9.6
15.9
32.2
41.8
48.1
--9.6
15.9
32.2
41.8
48.1
MCA
MOCP
47.1/46.8
73.2/76.9
90.1/96.4
134.5/147.5
160.5/177.7
177.5/167.1
48.6/47.8
74.7/77.9
91.6/97.4
136.0/148.5
162.0/178.7
179.0/168.1
61.5
87.6/91.6
104.5/111.1
148.9/162.3
174.9/192.4
191.9/181.8
23.5
38.5
48.4
73.9
88.9
83.7
23.5
38.5
48.4
73.9
88.9
83.7
30.6
45.6
55.4
80.9
95.9
90.8
18.6
30.6
38.4
58.8
70.8
66.7
19.6
31.6
39.4
59.8
71.8
67.7
24.9
36.9
44.7
65.1
77.1
73.0
60/60
80/80
100/100
150/150
175/200
200/175
60/60
80/80
100/100
150/150
175/200
200/175
80
100/100
110/125
150/175
175/200
200/200
30
40
50
80
90
90
30
40
50
80
90
90
40
50
60
90
100
100
25
35
40
60
80
70
25
35
40
60
80
70
30
40
45
70
80
80
NOTE: See page 133 for table legend and notes.
75
50HCQ
NOM.
V--- Ph--- Hz
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 57 – 50HCQA04
MCA/MOCP DETERMINATION WITH PWRD C.O.
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
208/
DD--- STD
230--- 1--- 60
50HCQ
DD--- STD
208/
230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
575--- 3--- 60
DD--- STD
MED
HIGH
Nom
(kW)
FLA
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
9.8/13.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
--6.0
8.8
11.5
14.0
--6.0
8.8
11.5
14.0
--6.0
8.8
11.5
14.0
-------
--15.9/18.3
23.5/27.1
31.4/36.3
37.9/43.8
46.9/54.2
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--7.2
10.6
13.8
16.8
--7.2
10.6
13.8
16.8
--7.2
10.6
13.8
16.8
-------
MCA
34.0
53.8/56.8
63.3/67.8
73.2/79.3
81.3/88.7
92.6/101.7
26.2
37.7/39.5
43.2/45.7
48.8/52.3
53.6/57.8
68.0/74.3
24.0
35.5/37.3
41.0/43.5
46.6/50.1
51.4/55.6
65.8/72.1
24.0
35.5/37.3
41.0/43.5
46.6/50.1
51.4/55.6
65.8/72.1
14.0
23.0
27.2
31.2
35.0
12.6
21.6
25.8
29.8
33.6
12.6
21.6
25.8
29.8
33.6
11.0
9.4
9.0
WITH PWRD C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
50
34
93
35.9
50
36
95
60/60
53/55
109/111
55.7/58.7
60/60
55/58
111/113
70/70
61/65
117/120
65.2/69.7
70/70
63/68
119/122
80/80
70/76
124/129
75.1/81.2
80/90
73/78
126/131
90/90
78/85
131/137
83.2/90.6
90/100
80/87
133/139
100/110
88/97
187/201 94.5/103.6 100/110
90/99
189/203
30
27
87
28.1
35
29
89
45/45
38/39
96/98
39.6/41.4
45/45
40/42
98/100
50/50
43/45
101/103
45.1/47.6
50/50
45/47
103/105
50/60
48/51
105/108
50.7/54.2
60/60
50/53
107/110
60/60
52/56
109/112
55.5/59.7
60/60
55/58
111/114
70/80
66/71
120/126
69.9/76.2
70/80
68/74
122/128
30
25
99
25.9
30
27
101
40/45
35/37
108/110
37.4/39.2
45/45
37/39
110/112
45/50
40/43
113/115
42.9/45.4
45/50
42/45
115/117
50/60
45/49
117/120
48.5/52.0
50/60
48/51
119/122
60/60
50/54
121/124
53.3/57.5
60/60
52/56
123/126
70/80
63/69
132/138
67.7/74.0
70/80
65/71
134/140
30
25
110
25.9
30
27
112
40/45
35/37
119/121
37.4/39.2
45/45
37/39
121/123
45/50
40/43
124/126
42.9/45.4
45/50
42/45
126/128
50/60
45/49
128/131
48.5/52.0
50/60
48/51
130/133
60/60
50/54
132/135
53.3/57.5
60/60
52/56
134/137
70/80
63/69
143/149
67.7/74.0
70/80
65/71
145/151
20
14
45
15.0
20
16
46
25
23
52
24.0
25
24
53
30
27
56
28.2
30
28
57
35
30
59
32.2
35
31
60
35
34
62
36.0
40
35
63
15
13
50
13.6
20
14
51
25
21
57
22.6
25
22
58
30
25
61
26.8
30
26
62
30
29
64
30.8
35
30
65
35
32
67
34.6
35
33
68
15
13
56
13.6
20
14
57
25
21
63
22.6
25
22
64
30
25
67
26.8
30
26
68
30
29
70
30.8
35
30
71
35
32
73
34.6
35
33
74
15
12
44
12.9
15
14
46
15
10
47
11.3
15
12
49
15
9
51
10.9
15
11
53
NOTE: See page 133 for table legend and notes.
76
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
MCA/MOCP DETERMINATION WITH PWRD C.O.
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
208/
DD--- STD
230--- 1--- 60
DD--- STD
208/
230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
575--- 3--- 60
DD--- STD
MED
HIGH
Nom
(kW)
--3.3/4.4
6.5/8.7
9.8/13.0
13.1/17.4
15.8/21.0
--4.9/6.5
6.5/8.7
12.0/16.0
15.8/21.0
--4.9/6.5
6.5/8.7
12.0/16.0
15.8/21.0
--4.9/6.5
6.5/8.7
12.0/16.0
15.8/21.0
--6.0
11.5
14.0
23.0
--6.0
11.5
14.0
23.0
--6.0
11.5
14.0
23.0
-------
FLA
MCA
--38.4
15.9/18.3 58.2/61.2
31.4/36.3 77.6/83.7
46.9/54.2 97.0/106.1
62.8/72.5 116.9/129.0
75.8/87.5 133.1/147.7
--30.0
13.6/15.6 47.0/49.5
18.1/20.9 52.6/56.1
33.4/38.5 71.7/78.1
43.8/50.5 84.7/93.1
--27.8
13.6/15.6 44.8/47.3
18.1/20.9 50.4/53.9
33.4/38.5 69.5/75.9
43.8/50.5 82.5/90.9
--27.8
13.6/15.6 44.8/47.3
18.1/20.9 50.4/53.9
33.4/38.5 69.5/75.9
43.8/50.5 82.5/90.9
--14.6
7.2
23.6
13.8
31.9
16.8
35.6
27.7
49.3
--13.2
7.2
22.2
13.8
30.5
16.8
34.2
27.7
47.9
--13.2
7.2
22.2
13.8
30.5
16.8
34.2
27.7
47.9
--12.0
--10.4
--10.0
WITH PWRD C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
50
38
124
40.3
60
41
126
60/70
57/59
140/142
60.1/63.1
70/70
59/62
142/144
80/90
75/80
155/160
79.5/85.6
80/90
77/82
157/162
100/110
92/101
218/232 98.9/108.0 100/110
95/103
220/234
125/150 111/122 250/269 118.8/130.9 125/150 113/124 252/271
150/150 126/139 276/299 135.0/149.6 150/150 128/141 278/301
40
31
98
31.9
40
33
100
50/50
46/49
112/114
48.9/51.4
50/60
49/51
114/116
60/60
52/55
116/119
54.5/58.0
60/60
54/57
118/121
80/80
69/75
131/137
73.6/80.0
80/90
71/77
133/139
90/100
81/89
186/199
86.6/95.0
90/100
83/91
188/201
40
28
110
29.7
40
30
112
50/50
44/46
124/126
46.7/49.2
50/50
46/48
126/128
60/60
49/52
128/131
52.3/55.8
60/60
51/54
130/133
70/80
67/72
143/149
71.4/77.8
80/80
69/75
145/151
90/100
79/86
198/211
84.4/92.8
90/100
81/88
200/213
40
28
121
29.7
40
30
123
50/50
44/46
135/137
46.7/49.2
50/50
46/48
137/139
60/60
49/52
139/142
52.3/55.8
60/60
51/54
141/144
70/80
67/72
154/160
71.4/77.8
80/80
69/75
156/162
90/100
79/86
209/222
84.4/92.8
90/100
81/88
211/224
20
15
49
15.6
20
16
50
25
23
56
24.6
25
24
57
35
31
63
32.9
35
32
64
40
34
66
36.6
40
36
67
50
47
104
50.3
60
48
105
15
13
54
14.2
20
15
55
25
22
61
23.2
25
23
62
35
29
68
31.5
35
30
69
35
33
71
35.2
40
34
72
50
45
109
48.9
50
46
110
15
13
60
14.2
20
15
61
25
22
67
23.2
25
23
68
35
29
74
31.5
35
30
75
35
33
77
35.2
40
34
78
50
45
115
48.9
50
46
116
15
13
41
13.9
20
15
43
15
11
44
12.3
15
13
46
15
10
48
11.9
15
12
50
NOTE: See page 133 for table legend and notes.
77
50HCQ
TABLE 58 – 50HCQA05
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 59 – 50HCQA06
MCA/MOCP DETERMINATION WITH PWRD C.O.
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
208/
DD--- STD
230--- 1--- 60
50HCQ
DD--- STD
208/
230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
575--- 3--- 60
DD--- STD
MED
HIGH
Nom
(kW)
FLA
--4.9/6.5
6.5/8.7
9.8/13.0
13.1/17.4
15.8/21.0
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
--6.0
11.5
14.0
23.0
25.5
--6.0
11.5
14.0
23.0
25.5
--6.0
11.5
14.0
23.0
25.5
-------
--23.5/27.1
31.4/36.3
46.9/54.2
62.8/72.5
75.8/87.5
--13.6/15.6
21.9/25.3
33.4/38.5
43.8/50.5
55.2/63.8
--13.6/15.6
21.9/25.3
33.4/38.5
43.8/50.5
55.2/63.8
--13.6/15.6
21.9/25.3
33.4/38.5
43.8/50.5
55.2/63.8
--7.2
13.8
16.8
27.7
30.7
--7.2
13.8
16.8
27.7
30.7
--7.2
13.8
16.8
27.7
30.7
-------
MCA
44.9
74.2/78.7
84.1/90.2
103.5/112.6
123.4/135.5
139.6/154.2
33.5
50.5/53.0
60.9/65.1
75.2/81.6
88.2/96.6
102.5/113.2
31.3
48.3/50.8
58.7/62.9
73.0/79.4
86.0/94.4
100.3/111.0
33.6
50.6/53.1
61.0/65.2
75.3/81.7
88.3/96.7
102.6/113.3
15.8
24.8
33.0
36.8
50.4
54.1
14.4
23.4
31.6
35.4
49.0
52.7
15.2
24.2
32.4
36.2
49.8
53.5
12.9
10.9
11.7
WITH PWRD C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
60
44
149
46.8
60
47
151
80/80
71/76
173/176
76.1/80.6
80/90
74/78
175/178
100/100
81/86
180/185
86.0/92.1
100/100
83/88
182/187
110/125
98/107
243/257 105.4/114.5 110/125 101/109 245/259
125/150 117/128 275/294 125.3/137.4 150/150 119/130 277/296
150/175 132/145 301/324 141.5/156.1 150/175 134/147 303/326
45
34
125
35.4
50
36
127
60/60
50/52
139/141
52.4/54.9
60/60
52/54
141/143
70/70
59/63
147/150
62.8/67.0
70/70
61/65
149/152
80/90
72/78
158/164
77.1/83.5
80/90
75/80
160/166
90/100
84/92
213/226
90.1/98.5
100/100
86/94
215/228
110/125
97/107
235/253 104.4/115.1 110/125 100/109 237/255
45
31
148
33.2
45
34
150
60/60
47/49
162/164
50.2/52.7
60/60
49/52
164/166
60/70
57/60
170/173
60.6/64.8
70/70
59/63
172/175
80/80
70/76
181/187
74.9/81.3
80/90
72/78
183/189
90/100
82/89
236/249
87.9/96.3
90/100
84/92
238/251
110/125
95/105
258/276 102.2/112.9 110/125
97/107
260/278
45
34
174
35.5
50
36
176
60/60
50/52
188/190
52.5/55.0
60/60
52/54
190/192
70/70
59/63
196/199
62.9/67.1
70/70
61/65
198/201
80/90
72/78
207/213
77.2/83.6
80/90
75/81
209/215
90/100
84/92
262/275
90.2/98.6
100/100
87/94
264/277
110/125
98/107
284/302 104.5/115.2 110/125 100/110 286/304
20
16
60
16.8
20
17
61
25
24
67
25.8
30
26
68
35
32
74
34.0
35
33
75
40
35
77
37.8
40
37
78
60
48
115
51.4
60
49
116
60
51
121
55.1
60
53
122
20
14
71
15.4
20
16
72
25
23
78
24.4
25
24
79
35
30
85
32.6
35
32
86
40
34
88
36.4
40
35
89
50
46
126
50.0
50
47
127
60
50
132
53.7
60
51
133
20
15
84
16.2
20
17
85
25
24
91
25.2
30
25
92
35
31
98
33.4
35
32
99
40
35
101
37.2
40
36
102
50
47
139
50.8
60
48
140
60
51
145
54.5
60
52
146
15
13
48
14.8
20
16
50
15
11
55
12.8
15
13
57
15
12
66
13.6
15
14
68
NOTE: See page 127 for continuation of this table.
78
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
MCA/MOCP DETERMINATION WITH PWRD C.O.
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
STD
208/
230--- 3--- 60
MED
HIGH
STD
460--- 3--- 60
MED
HIGH
575--- 3--- 60
STD
MED
HIGH
Nom
(kW)
FLA
--4.9/6.5
7.8/10.4
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.8/10.4
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.8/10.4
12.0/16.0
15.8/21.0
19.9/26.5
--6.0
11.5
14.0
23.0
25.5
--6.0
11.5
14.0
23.0
25.5
--6.0
11.5
14.0
23.0
25.5
-------
--13.6/15.6
21.7/25.0
33.4/38.5
43.8/50.5
55.2/63.8
--13.6/15.6
21.7/25.0
33.4/38.5
43.8/50.5
55.2/63.8
--13.6/15.6
21.7/25.0
33.4/38.5
43.8/50.5
55.2/63.8
--7.2
13.8
16.8
27.7
30.7
--7.2
13.8
16.8
27.7
30.7
--7.2
13.8
16.8
27.7
30.7
-------
MCA
36.8
53.8/56.3
63.9/68.0
78.5/84.9
91.5/99.9
105.8/116.5
39.1
56.1/58.6
66.2/70.3
80.8/87.2
93.8/102.2
108.1/118.8
46.6
63.6/66.1
73.7/77.8
88.3/94.7
101.3/109.7
115.6/126.3
18.5
27.5
35.8
39.5
53.2
56.9
19.3
28.3
36.6
40.3
54.0
57.7
23.3
32.3
40.6
44.3
58.0
61.7
14.6
15.0
17.8
WITH PWRD C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
50
37
153
40.6
50
41
157
60/60
52/55
167/169
57.6/60.1
60/70
57/59
171/173
70/80
62/66
175/178
67.7/71.8
80/80
66/70
179/182
80/90
75/81
186/192
82.3/88.7
90/90
80/85
190/196
100/100
87/95
241/254 95.3/103.7 100/110
92/99
245/258
110/125 100/110 263/281 109.6/120.3 110/125 105/115 267/285
50
39
190
42.9
60
44
194
60/60
55/57
204/206
59.9/62.4
70/70
59/62
208/210
70/80
64/68
212/215
70.0/74.1
80/80
69/73
216/219
90/90
78/84
223/229
84.6/91.0
90/100
82/88
227/233
100/110
90/98
278/291 97.6/106.0 100/110
94/102
282/295
110/125 103/113 300/318 111.9/122.6 125/125 107/117 304/322
60
48
216
50.4
60
52
220
70/80
64/66
230/232
67.4/69.9
80/80
68/70
234/236
80/80
73/77
238/241
77.5/81.6
80/90
77/81
242/245
90/100
86/92
249/255
92.1/98.5
100/100
91/97
253/259
110/110
98/106
304/317 105.1/113.5 110/125 103/111 308/321
125/150 112/121 326/344 119.4/130.1 125/150 116/126 330/348
25
19
77
20.3
30
21
79
30
27
84
29.3
30
29
86
40
34
91
37.6
40
36
93
45
38
94
41.3
45
40
96
60
50
105
55.0
60
52
107
60
54
108
58.7
60
56
110
25
19
96
21.1
30
22
98
30
28
103
30.1
35
30
105
40
35
110
38.4
40
37
112
45
39
113
42.1
45
41
115
60
51
124
55.8
60
53
126
60
55
127
59.5
60
57
129
30
24
109
25.1
30
26
111
40
32
116
34.1
40
34
118
45
40
123
42.4
45
42
125
45
43
126
46.1
50
45
128
60
56
137
59.8
60
58
139
70
59
140
63.5
70
61
142
20
15
63
18.4
25
19
67
20
15
78
18.8
25
19
82
25
18
92
21.6
25
23
96
NOTE: See page 133 for table legend and notes.
79
50HCQ
TABLE 60 – 50HCQA07
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 61 – 50HCQD08
MCA/MOCP DETERMINATION WITH PWRD C.O.
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
50HCQ
STD
208/
230--- 3--- 60
MED
HIGH
STD
460--- 3--- 60
MED
HIGH
STD
575--- 3--- 60
MED
HIGH
Nom
(kW)
FLA
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--17.0
34.0
--17.0
34.0
--17.0
34.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--20.4
40.9
--20.4
40.9
--20.4
40.9
MCA
42.5
69.6/73.7
84.2/90.6
107.1/117.1
125.9/138.7
153.0/170.0
42.5
69.6/73.7
84.2/90.6
107.1/117.1
125.9/138.7
153.0/170.0
47.3
74.4/78.5
89.0/95.4
111.9/121.9
130.7/143.5
157.8/174.8
20.1
41.0
44.9
61.9
69.8
82.9
20.1
41.0
44.9
61.9
69.8
82.9
21.9
42.8
46.7
63.7
71.6
84.7
15.2
40.7
66.3
14.8
40.3
65.9
15.6
41.1
66.7
WITH PWRD C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
50
45
196
46.3
50
49
200
70/80
70/74
218/221
73.4/77.5
80/80
74/78
222/225
90/100
83/89
229/235
88.0/94.4
90/100
88/94
233/239
110/125
105/114
248/256 110.9/120.9 125/125
109/118
252/260
150/150
122/134
263/273 129.7/142.5 150/150
126/138
267/277
175/175
147/162
373/400 156.8/173.8 175/175
151/167
377/404
50
45
207
46.3
50
49
211
70/80
70/74
229/232
73.4/77.5
80/80
74/78
233/236
90/100
83/89
240/246
88.0/94.4
90/100
88/94
244/250
110/125
105/114
259/267 110.9/120.9 125/125
109/118
263/271
150/150
122/134
274/284 129.7/142.5 150/150
126/138
278/288
175/175
147/162
384/411 156.8/173.8 175/175
151/167
388/415
60
51
250
51.1
60
55
254
80/80
76/79
272/275
78.2/82.3
80/90
80/84
276/279
90/100
89/95
283/289
92.8/99.2
100/100
93/99
287/293
125/125
110/119
302/310 115.7/125.7 125/150
114/124
306/314
150/150
127/139
317/327 134.5/147.3 150/150
132/144
321/331
175/175
152/168
427/454 161.6/178.6 175/200
157/172
431/458
25
21
97
21.9
25
23
99
45
41
114
42.8
45
43
116
45
44
117
46.7
50
46
119
70
60
130
63.7
70
62
132
70
67
137
71.6
80
69
139
90
79
197
84.7
90
81
199
25
21
103
21.9
25
23
105
45
41
120
42.8
45
43
122
45
44
123
46.7
50
46
125
70
60
136
63.7
70
62
138
70
67
143
71.6
80
69
145
90
79
203
84.7
90
81
205
25
23
125
23.7
30
26
127
45
43
142
44.6
45
45
144
50
46
145
48.5
50
48
147
70
62
158
65.5
70
64
160
80
69
165
73.4
80
71
167
90
81
225
86.5
90
83
227
20
16
79
19.0
25
21
83
45
40
99
44.5
45
44
103
70
63
120
70.1
80
68
124
20
16
83
18.6
20
20
87
45
39
103
44.1
45
44
107
70
63
124
69.7
70
67
128
20
17
94
19.4
25
21
98
45
40
114
44.9
45
45
118
70
64
135
70.5
80
68
139
NOTE: See page 127 for continuation of this table.
80
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 62 – 50HCQD08
MCA/MOCP DETERMINATION WITH PWRD C.O.
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
IFM
TYPE
STD
208/
230 ---3 ---60
MED
HIGH
STD
460 ---3 ---60
MED
HIGH
STD
575 ---3 ---60
HIGH
w/ PWRD C.O.
WITHOUT P.E.
Nom
(kW)
FLA
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--17.0
34.0
--17.0
34.0
--17.0
34.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--20.4
40.9
--20.4
40.9
--20.4
40.9
MCA
MOCP
43.1/42.9
70.2/74.1
84.8/91.0
107.7/117.5
126.5/139.1
153.6/170.4
44.4/44.1
71.5/75.3
86.1/92.2
109.0/118.7
127.8/140.3
154.9/171.6
48.1/47.1
75.2/78.3
89.8/95.2
112.7/121.7
131.5/143.3
158.6/174.6
20.4
41.3
45.2
62.2
70.1
83.2
21.3
42.2
46.1
63.1
71.0
84.1
22.4
43.3
47.2
64.2
72.1
85.2
15.6
41.1
66.7
16.3
41.8
67.4
17.3
42.8
68.5
50/50
80/80
90/100
110/125
150/150
175/175
50/50
80/80
90/100
110/125
150/150
175/175
60/60
80/80
90/100
125/125
150/150
175/175
25
45
50
70
80
90
25
45
50
70
80
90
25
45
50
70
80
90
20
45
70
20
45
70
20
45
70
DISC. SIZE
FLA
LRA
46/46
200
71/74
222/225
84/90
233/239
105/114
252/260
122/134
267/277
147/163
377/404
47/47
204
72/76
226/229
86/91
237/243
107/116
256/264
124/135
271/281
149/164
381/408
52/50
254
76/79
276/279
90/95
287/293
111/119
306/314
128/139
321/331
153/168
431/458
22
99
41
116
45
119
60
132
67
139
79
199
23
102
42
119
46
122
61
135
68
142
81
202
24
127
43
144
47
147
62
160
70
167
82
227
17
81
40
101
64
122
17
85
41
105
65
126
19
94
42
114
66
135
NOTE: See page 133 for table legend and notes.
81
MCA
46.9/46.7
74.0/77.9
88.6/94.8
111.5/121.3
130.3/142.9
157.4/174.2
48.2/47.9
75.3/79.1
89.9/96.0
112.8/122.5
131.6/144.1
158.7/175.4
51.9/50.9
79.0/82.1
93.6/99.0
116.5/125.5
135.3/147.1
162.4/178.4
22.2
43.1
47.0
64.0
71.9
85.0
23.1
44.0
47.9
64.9
72.8
85.9
24.2
45.1
49.0
66.0
73.9
87.0
19.4
44.9
70.5
20.1
45.6
71.2
21.1
46.6
72.3
w/ P.E. (pwrd fr/unit)
DISC. SIZE
MOCP
FLA
LRA
60/50
50/50
204
80/80
75/79
226/229
90/100
89/94
237/243
125/125
110/119
256/264
150/150
127/138
271/281
175/175
152/167
381/408
60/60
52/51
208
80/80
77/80
230/233
90/100
90/96
241/247
125/125
111/120
260/268
150/150
128/140
275/285
175/200
153/169
385/412
60/60
56/55
258
80/90
81/83
280/283
100/100
94/99
291/297
125/150
115/123
310/318
150/150
133/143
325/335
175/200
158/172
435/462
25
24
101
45
43
118
50
47
121
70
62
134
80
69
141
90
82
201
25
25
104
45
44
121
50
48
124
70
63
137
80
70
144
90
83
204
30
26
129
50
45
146
50
49
149
70
65
162
80
72
169
90
84
229
25
21
85
45
45
105
80
68
126
25
22
89
50
45
109
80
69
130
25
23
98
50
46
118
80
70
139
50HCQ
ELECTRIC HEATER
NOM.
V--- Ph--- Hz
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 63 – 50HCQD09
MCA/MOCP DETERMINATION WITH PWRD C.O.
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
V ---PH ---Hz
IFM
TYPE
50HCQ
STD
208/
230--- 3--- 60
MED
HIGH
STD
460--- 3--- 60
MED
HIGH
STD
575--- 3--- 60
MED
HIGH
Nom
(kW)
FLA
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--17.0
34.0
--17.0
34.0
--17.0
34.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--20.4
40.9
--20.4
40.9
--20.4
40.9
MCA
49.9
77.0/81.2
91.7/98.0
114.5/124.5
133.3/146.2
160.4/177.4
52.2
79.3/83.5
94.0/100.3
116.8/126.8
135.6/148.5
162.7/179.7
54.7
81.8/86.0
96.5/102.8
119.3/129.3
138.1/151.0
165.2/182.2
22.9
43.7
47.6
64.6
72.5
85.6
23.7
44.5
48.4
65.4
73.3
86.4
24.7
45.5
49.4
66.4
74.3
87.4
18.0
43.5
69.1
18.8
44.3
69.9
18.8
44.3
69.9
WITH PWRD C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
60
53
230
53.7
60
57
234
80/90
78/82
252/255
80.8/85.0
90/90
82/86
256/259
100/100
91/97
263/269 95.5/101.8 100/110
96/101
267/273
125/125 112/121 282/290 118.3/128.3 125/150 117/126 286/294
150/150 129/141 297/307 137.1/150.0 150/150 134/146 301/311
175/200 154/170 407/434 164.2/181.2 175/200 159/174 411/438
60
55
267
56.0
70
60
271
80/90
80/84
289/292
83.1/87.3
90/90
85/89
293/296
100/110
94/100
300/306 97.8/104.1 100/110
98/104
304/310
125/150 115/124 319/327 120.6/130.6 125/150 119/128 323/331
150/150 132/144 334/344 139.4/152.3 150/175 137/148 338/348
175/200 157/173 444/471 166.5/183.5 175/200 161/177 448/475
60
58
284
58.5
70
63
288
90/90
83/87
306/309
85.6/89.8
90/90
88/91
310/313
100/110
97/103
317/323 100.3/106.6 110/110 101/107 321/327
125/150 118/127 336/344 123.1/133.1 125/150 122/131 340/348
150/175 135/147 351/361 141.9/154.8 150/175 139/151 355/365
175/200 160/176 461/488 169.0/186.0 175/200 164/180 465/492
25
24
114
24.7
30
26
116
45
43
131
45.5
50
46
133
50
47
134
49.4
50
49
136
70
63
147
66.4
70
65
149
80
70
154
74.3
80
72
156
90
82
214
87.4
90
84
216
30
25
133
25.5
30
27
135
45
44
150
46.3
50
46
152
50
48
153
50.2
60
50
155
70
64
166
67.2
70
66
168
80
71
173
75.1
80
73
175
90
83
233
88.2
90
85
235
30
26
142
26.5
30
28
144
50
46
159
47.3
50
48
161
50
49
162
51.2
60
51
164
70
65
175
68.2
70
67
177
80
72
182
76.1
80
74
184
90
84
242
89.2
90
86
244
20
19
99
21.8
25
23
103
45
43
119
47.3
50
47
123
70
66
140
72.9
80
70
144
25
20
110
22.6
25
24
114
45
43
130
48.1
50
48
134
70
67
151
73.7
80
71
155
25
20
110
22.6
25
24
114
45
43
130
48.1
50
48
134
70
67
151
73.7
80
71
155
NOTE: See page 133 for table legend and notes.
82
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 64 – 50HCQD09
MCA/MOCP DETERMINATION WITH PWRD C.O.
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
IFM
TYPE
STD
208/
230 ---3 ---60
MED
HIGH
STD
460 ---3 ---60
MED
HIGH
STD
575 ---3 ---60
MED
HIGH
w/ PWRD C.O.
WITHOUT P.E.
Nom
(kW)
FLA
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--7.8/10.4
12.0/16.0
18.6/24.8
24.0/32.0
31.8/42.4
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--13.9
16.5
27.8
33.0
41.7
--17.0
34.0
--17.0
34.0
--17.0
34.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--21.7/25.0
33.4/38.5
51.7/59.7
66.7/77.0
88.4/102.0
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--16.7
19.8
33.4
39.7
50.2
--20.4
40.9
--20.4
40.9
--20.4
40.9
MCA
MOCP
50.5/50.3
77.6/81.6
92.3/98.4
115.1/124.9
133.9/146.6
161.0/177.8
53.3/52.5
80.4/83.8
95.1/100.6
117.9/127.1
136.7/148.8
163.8/180.0
55.5/54.5
82.6/85.8
97.3/102.6
120.1/129.1
138.9/150.8
166.0/182.0
23.2
44.0
47.9
64.9
72.8
85.9
24.1
44.9
48.8
65.8
73.7
86.8
25.2
46.0
49.9
66.9
74.8
87.9
19.5
45.0
70.6
20.5
46.0
71.6
20.5
46.0
71.6
60/60
80/90
100/100
125/125
150/150
175/200
60/60
90/90
100/110
125/150
150/150
175/200
60/60
90/90
100/110
125/150
150/175
175/200
30
45
50
70
80
90
30
45
50
70
80
90
30
50
50
70
80
90
25
45
80
25
50
80
25
50
80
DISC. SIZE
FLA
LRA
53/53
234
78/82
256/259
92/98
267/273
113/122
286/294
130/142
301/311
155/171
411/438
57/56
264
82/85
286/289
95/100
297/303
116/124
316/324
133/144
331/341
158/173
441/468
59/58
288
84/87
310/313
98/102
321/327
119/127
340/348
136/147
355/365
161/175
465/492
25
116
44
133
47
136
63
149
70
156
82
216
26
132
45
149
48
152
64
165
71
172
83
232
27
144
46
161
50
164
65
177
73
184
85
244
21
101
44
121
68
142
22
110
45
130
69
151
22
110
45
130
69
151
NOTE: See page 133 for table legend and notes.
83
MCA
54.3/54.1
81.4/85.4
96.1/102.2
118.9/128.7
137.7/150.4
164.8/181.6
57.1/56.3
84.2/87.6
98.9/104.4
121.7/130.9
140.5/152.6
167.6/183.8
59.3/58.3
86.4/89.6
101.1/106.4
123.9/132.9
142.7/154.6
169.8/185.8
25.0
45.8
49.7
66.7
74.6
87.7
25.9
46.7
50.6
67.6
75.5
88.6
27.0
47.8
51.7
68.7
76.6
89.7
23.3
48.8
74.4
24.3
49.8
75.4
24.3
49.8
75.4
w/ P.E. (pwrd fr/unit)
DISC. SIZE
MOCP
FLA
LRA
60/60
58/58
238
90/90
83/86
260/263
100/110
96/102
271/277
125/150
117/126
290/298
150/175
135/146
305/315
175/200
160/175
415/442
70/70
61/60
268
90/90
86/89
290/293
100/110
99/104
301/307
125/150
121/129
320/328
150/175
138/149
335/345
175/200
163/177
445/472
70/70
64/62
292
90/90
89/91
314/317
110/110
102/107
325/331
125/150
123/131
344/352
150/175
140/151
359/369
175/200
165/180
469/496
30
27
118
50
46
135
50
49
138
70
65
151
80
72
158
90
84
218
30
28
134
50
47
151
60
50
154
70
66
167
80
73
174
90
85
234
30
29
146
50
48
163
60
52
166
70
67
179
80
75
186
90
87
246
25
25
105
50
49
125
80
72
146
30
26
114
50
50
134
80
73
155
30
26
114
50
50
134
80
73
155
50HCQ
ELECTRIC HEATER
NOM.
V--- Ph--- Hz
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 65 – 50HCQD12
MCA/MOCP DETERMINATION WITH PWRD C.O.
2-- STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
ELECTRIC HEATER
NOM.
IFM
V ---PH ---Hz TYPE
STD
MED
50HCQ
208/
230--- 3--- 60
HIGH
STD
460--- 3--- 60
MED
HIGH
STD
575--- 3--- 60
MED
HIGH
Nom
(kW)
FLA
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--12.0
19.9
40.3
52.3
60.2
--12.0
19.9
40.3
52.3
60.2
--12.0
19.9
40.3
52.3
60.2
--9.6
15.9
32.2
41.8
48.1
--9.6
15.9
32.2
41.8
48.1
--9.6
15.9
32.2
41.8
48.1
MCA
50.0
76.1/80.1
93.0/99.6
137.4/150.7
163.4/180.9
180.4/170.3
52.3
78.4/82.4
95.3/101.9
139.7/153.0
165.7/183.2
182.7/172.6
66.3
92.4/96.4
109.3/115.9
153.7/167.1
179.7/197.2
196.7/186.6
24.5
39.5
49.4
74.9
89.9
84.7
25.3
40.3
50.2
75.7
90.7
85.5
32.8
47.8
57.6
83.1
98.1
93.0
18.8
30.8
38.6
59.0
71.0
66.9
19.6
31.6
39.4
59.8
71.8
67.7
26.6
38.6
46.4
66.8
78.8
74.7
WITH PWRD C.O.
WITHOUT P.E.
WITH P.E. (pwrd fr/unit)
DISC. SIZE
DISC. SIZE
MOCP
MCA
MOCP
FLA
LRA
FLA
LRA
60
53
267
53.8
60
57
271
80/90
77/81
288/291
79.9/83.9
80/90
81/85
292/295
100/100
92/99
301/307
96.8/103.4
100/110
97/103
305/311
150/175 133/146 337/348 141.2/154.5 150/175 138/150 341/352
175/200 157/173 448/476 167.2/184.7 175/200 162/178 452/480
200/175 173/191 476/508 184.2/174.1 200/200 177/196 480/512
60
56
293
56.1
70
60
297
80/90
80/83
314/317
82.2/86.2
90/90
84/88
318/321
100/110
95/101
327/333
99.1/105.7
100/110
99/106
331/337
150/175 136/148 363/374 143.5/156.8 150/175 140/153 367/378
175/200 160/176 474/502 169.5/187.0 175/200 164/180 478/506
200/200 175/194 502/534 186.5/176.4 200/200 180/198 506/538
80
70
329
70.1
80
75
333
100/100
94/98
350/353
96.2/100.2
100/110
99/102
354/357
110/125 110/116 363/369 113.1/119.7 125/125 114/120 367/373
175/175 151/163 399/410 157.5/170.9 175/175 155/167 403/414
200/200 175/191 510/538 183.5/201.0 200/225 179/195 514/542
200/200 190/209 538/570 200.5/190.4 225/200 195/213 542/574
30
26
127
26.3
30
28
129
40
40
139
41.3
45
42
141
50
49
147
51.2
60
51
149
80
72
167
76.7
80
74
169
90
86
232
91.7
100
88
234
90
95
247
86.5
90
97
249
30
27
140
27.1
30
29
142
45
41
152
42.1
45
43
154
60
50
160
52.0
60
52
162
80
73
180
77.5
80
75
182
100
87
245
92.5
100
89
247
90
96
260
87.3
90
98
262
40
35
158
34.6
40
37
160
50
49
170
49.6
50
51
172
60
58
178
59.4
60
60
180
90
81
198
84.9
90
83
200
100
95
263
99.9
100
97
265
100
104
278
94.8
100
106
280
25
20
97
22.6
25
24
101
35
31
107
34.6
35
35
111
40
38
113
42.4
45
43
117
60
57
129
62.8
70
61
133
80
68
181
74.8
80
72
185
70
75
193
70.7
80
80
197
25
21
108
23.4
25
25
112
35
32
118
35.4
40
36
122
40
39
124
43.2
45
43
128
60
58
140
63.6
70
62
144
80
69
192
75.6
80
73
196
70
76
204
71.5
80
81
208
30
28
120
30.4
35
32
124
45
39
130
42.4
45
43
134
50
46
136
50.2
60
51
140
70
65
152
70.6
80
69
156
80
76
204
82.6
90
80
208
80
83
216
78.5
90
88
220
NOTE: See page 133 for table legend and notes.
84
APPENDIX IV. ELECTRICAL INFORMATION (cont.)
TABLE 66 – 50HCQD12
MCA/MOCP DETERMINATION WITH PWRD C.O.
2-- STAGE COOLING WITH 2-- SPEED INDOOR FAN MOTOR
IFM
TYPE
STD
208/
230 ---3 ---60
MED
HIGH
STD
460 ---3 ---60
MED
HIGH
STD
575 ---3 ---60
MED
HIGH
w/ PWRD C.O.
WITHOUT P.E.
Nom
(kW)
FLA
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--7.5/10.0
12.4/16.5
25.2/33.5
32.7/43.5
37.6/50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--10.0
16.5
33.5
43.5
50.0
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--20.9/24.1
34.4/39.7
69.9/80.6
90.7/104.7
104.3/120.3
--12.0
19.9
40.3
52.3
60.2
--12.0
19.9
40.3
52.3
60.2
--12.0
19.9
40.3
52.3
60.2
--9.6
15.9
32.2
41.8
48.1
--9.6
15.9
32.2
41.8
48.1
--9.6
15.9
32.2
41.8
48.1
MCA
MOCP
51.9/51.6
78.0/81.7
94.9/101.2
139.3/152.3
165.3/182.5
182.3/171.9
53.4/52.6
79.5/82.7
96.4/102.2
140.8/153.3
166.8/183.5
183.8/172.9
66.3
92.4/96.4
109.3/115.9
153.7/167.1
179.7/197.2
196.7/186.6
25.7
40.7
50.6
76.1
91.1
85.9
25.7
40.7
50.6
76.1
91.1
85.9
32.8
47.8
57.6
83.1
98.1
93.0
20.3
32.3
40.1
60.5
72.5
68.4
21.3
33.3
41.1
61.5
73.5
69.4
26.6
38.6
46.4
66.8
78.8
74.7
60/60
80/90
100/110
150/175
175/200
200/200
60/60
80/90
100/110
150/175
175/200
200/200
80
100/100
110/125
175/175
200/200
200/200
30
45
60
80
100
90
30
45
60
80
100
90
40
50
60
90
100
100
25
35
45
70
80
70
25
35
45
70
80
80
30
45
50
70
80
80
DISC. SIZE
FLA
LRA
55/55
264
79/82
285/288
95/100
298/304
135/147
334/345
159/175
445/473
175/193
473/505
57/56
290
81/84
311/314
96/102
324/330
137/149
360/371
161/176
471/499
177/194
499/531
70
329
94/98
350/353
110/116
363/369
151/163
399/410
175/191
510/538
190/209
538/570
27
126
41
138
50
146
74
166
88
231
97
246
27
139
41
151
50
159
74
179
88
244
97
259
35
158
49
170
58
178
81
198
95
263
104
278
22
99
33
109
40
115
59
131
70
183
77
195
23
108
34
118
41
124
60
140
71
192
78
204
28
120
39
130
46
136
65
152
76
204
83
216
NOTE: See page 133 for table legend and notes.
85
MCA
55.7/55.4
81.8/85.5
98.7/105.0
143.1/156.1
169.1/186.3
186.1/175.7
57.2/56.4
83.3/86.5
100.2/106.0
144.6/157.1
170.6/187.3
187.6/176.7
70.1
96.2/100.2
113.1/119.7
157.5/170.9
183.5/201.0
200.5/190.4
27.5
42.5
52.4
77.9
92.9
87.7
27.5
42.5
52.4
77.9
92.9
87.7
34.6
49.6
59.4
84.9
99.9
94.8
24.1
36.1
43.9
64.3
76.3
72.2
25.1
37.1
44.9
65.3
77.3
73.2
30.4
42.4
50.2
70.6
82.6
78.5
w/ P.E. (pwrd fr/unit)
DISC. SIZE
MOCP
FLA
LRA
60/60
59/59
268
90/90
83/87
289/292
100/110
99/105
302/308
150/175
140/152
338/349
175/200
164/180
449/477
200/200
179/197
477/509
70/70
61/60
294
90/90
85/88
315/318
110/110
101/106
328/334
150/175
142/153
364/375
175/200
165/181
475/503
200/200
181/199
503/535
80
75
333
100/110
99/102
354/357
125/125
114/120
367/373
175/175
155/167
403/414
200/225
179/195
514/542
225/200
195/213
542/574
30
29
128
45
43
140
60
52
148
80
76
168
100
90
233
90
99
248
30
29
141
45
43
153
60
52
161
80
76
181
100
90
246
90
99
261
40
37
160
50
51
172
60
60
180
90
83
200
100
97
265
100
106
280
30
26
103
40
37
113
45
44
119
70
63
135
80
74
187
80
81
199
30
27
112
40
38
122
45
45
128
70
64
144
80
75
196
80
82
208
35
32
124
45
43
134
60
51
140
80
69
156
90
80
208
90
88
220
50HCQ
ELECTRIC HEATER
NOM.
V--- Ph--- Hz
Legend and Notes for Table 47 -- Table 66
% Voltage Imbalance
= 100 x
max voltage deviation from average voltage
average voltage
= 100 x
max voltage deviation from average voltage
average voltage
Example: Supply voltage is 230-3-60
AB = 224V
BC = 231V
AC = 226V
Average Voltage =
=
(224 + 231 + 226)
3
227
=
681
3
Determine maximum deviation from average voltage.
(AB) 227 – 224 = 3V
Maximum deviation is 4V.
(BC) 231 – 227 = 4V
Determine percent of voltage imbalance.
% Voltage Imbalance
= 100 x
= 1.76%
4
227
This amount of phase imbalance is satisfactory as it is below the maximum
allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.
50HCQ
LEGEND
C.O.
--- Convenience outlet
DD
--- Electric Drive X13 Motor
DISC
--- Disconnect
FLA
--- Full load amps
IFM
--- Indoor fan motor
LRA
--- Locked rotor amps
MCA
--- Minimum circuit amps
MOCP
--- Maximum over current protection
P.E. --Power exhaust
UNPWRD C.O.
--- Unpowered Convenience outlet
NOTES:
1. In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the
overcurrent protective device for the unit shall be fuse or HACR
breaker. Canadian units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage
is greater than 2%. Use the following formula to determine the
percentage of voltage imbalance.
% Voltage Imbalance
86
APPENDIX V. WIRING DIAGRAMS
SIZE
A04
A05
A06
A07
SIZE
D08
D09
D12
VOLTAGE
208/230---1---60
208/230---3---60
460---3---60
575---3---60
208/230---1---60
208/230---3---60
460---3---60
575---3---60
208/230---1---60
208/230---3---60
460---3---60
575---3---60
208/230---3---60
460---3---60
575---3---60
50HCQA
CONTROL
48TM501434---E
48TM501434---E
48TM501434---E
48TM501520---F
48TM501434---E
48TM501434---E
48TM501434---E
48TM501520---F
48TM502975---C
48TM502975---C
48TM502975---C
48TM502976---E
48TM502826---E
48TM502826---E
48TM502826---E
VOLTAGE
208/230---3---60
460---3---60
575---3---60
208/230---3---60
460---3---60
575---3---60
208/230---3---60
460---3---60
575---3---60
PremierLink*
50HCQD
CONTROL
48TM501370---J
48TM501370---J
48TM501370---J
48TM501370---J
48TM501370---J
48TM501370---J
48TM501926---G
48TM501926---G
48TM501926---G
48TM501529---G
RTU Open*
50HE500751---J
POWER
48TM501435---I
48TM501436---I
48TM501515---J
48TM501516---J
48TM501435---I
48TM501436---I
48TM501515---J
48TM501516---J
48TM501435---I
48TM501436---I
48TM501515---J
48TM501516---J
48TM502827---C
48TM502827---C
48TM502827---C
POWER
48TM501371---L
48TM501371---L
48TM501371---L
48TM501371---L
48TM501371---L
48TM501371---L
48TM501927---G
48TM501948---G
48TM501948---G
NOTE: Component arrangement on Control; Legend on Power Schematic
* PremierLink and RTU OPEN control labels overlay a portion of the base unit control label. The base unit label drawing and the control option drawing
are required to provide a complete unit control diagram.
87
50HCQ
Wiring Diagrams
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12343
Fig. 57 - 50HCQA04/A05 Control Wiring Diagram - 208/230-- 1-- 60; 208/230-- 3-- 60; 460-- 3-- 60
88
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12357
Fig. 58 - 50HCQA04/A05 Control Wiring Diagram - 575-- 3-- 60
89
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12350
Fig. 59 - 50HCQ*06 Control Wiring Diagram - 208/230-- 1-- 60; 208/230-- 3-- 60; 460-- 3-- 60
90
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12351
Fig. 60 - 50HCQ*06 Control Wiring Diagram - 575-- 3-- 60
91
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12352
Fig. 61 - 50HCQ*07 Control Wiring Diagram - 208/230-- 1-- 60; 208/230-- 3-- 60; 460-- 3-- 60; 575-- 3-- 60
92
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12344
Fig. 62 - 50HCQ*08/09 Control Wiring Diagram - 208/230-- 1-- 60; 208/230-- 3-- 60; 460-- 3-- 60; 575-- 3-- 60
93
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12345
Fig. 63 - 50HCQ*12 Control Wiring Diagram - 208/230-- 1-- 60; 208/230-- 3-- 60; 460-- 3-- 60; 575-- 3-- 60
94
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12346
Fig. 64 - 50HCQ*04/05/06 Power Wiring Diagram - 208/230-- 1-- 60
95
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12347
Fig. 65 - 50HCQ*04/05/06 Power Wiring Diagram - 208/230-- 3-- 60
96
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12353
Fig. 66 - 50HCQ*04/05/06 Power Wiring Diagram - 460-- 3-- 60
97
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12354
Fig. 67 - 50HCQ*04/05/06 Power Wiring Diagram - 575-- 3-- 60
98
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12355
Fig. 68 - 50HCQ*07 Power Wiring Diagram - 208/230-- 3-- 60; 460-- 3-- 60; 575-- 3-- 60
99
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12348
Fig. 69 - 50HCQ*09 Power Wiring Diagram - 208/230-- 3-- 60; 460-- 3-- 60; 575-- 3-- 60
100
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12349
Fig. 70 - 50HCQ*12 Power Wiring Diagram - 208/230-- 3-- 60; 460-- 3-- 60; 575-- 3-- 60
101
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12356
Fig. 71 - 50HCQ*12 Power Wiring Diagram - 460-- 3-- 60; 575-- 3-- 60
102
APPENDIX V. WIRING DIAGRAMS
J
50HCQ
50HE500751
50HE500891
F
C12358
Fig. 72 - 50HCQ PremierLink Control Diagram
103
50HCQ
APPENDIX V. WIRING DIAGRAMS
C12359
Fig. 73 - 50HCQ RTU-- Open Control Diagram
104
APPENDIX VI. MOTORMASTER SENSOR LOCATIONS
50HCQ
SENSOR LOCATION
C10646
Fig. 74 - 50HCQA04 Outdoor Circuiting
SENSOR LOCATION
C12332
Fig. 75 - 50HCQA05/A06 Outdoor Circuiting
105
50HCQ
APPENDIX VI. MOTORMASTER SENSOR LOCATIONS (CONT)
Sensor
Location
C09194
Fig. 76 - 50HCQA07 Outdoor Circuiting
Sensor
Location
C09195
Fig. 77 - 50HCQD08/D09 Outdoor Circuiting
106
APPENDIX VI. MOTORMASTER SENSOR LOCATIONS (CONT)
50HCQ
SENSOR
LOCATION
Locate sensor on
feeder tube
(as shown on coil
whose headers are
closest to the
compressor access
panel)
C10939
Fig. 78 - 50HCQD12 Outdoor Circuiting
107
50HCQ
Copyright 2011 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231
Edition Date: 05/12
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
108
Catalog No: 50HCQ---01SM
New
START-UP CHECKLIST
(Remove and Store in Job File)
I. PRELIMINARY INFORMATION
MODEL NO.:
SERIAL NO.:
DATE:
TECHNICIAN:
II. PRE-START-UP (insert checkmark in box as each item is completed)
j VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE
j VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT
j REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS
j CHECK REFRIGERANT PIPING FOR INDICATIONS OF LEAKS; INVESTIGATE AND REPAIR IF NECESSARY
j CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS
j CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE
j VERIFY THAT UNIT INSTALLATION IS LEVEL
j CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW
TIGHTNESS
j CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES
OR SHARP METAL EDGES
j CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS
III. START-UP
ELECTRICAL
SUPPLY VOLTAGE
CIRCUIT 1 COMPRESSOR AMPS
L1-L2
L1
L2-L3
L3-L1
L2
L3
CIRCUIT 2 COMPRESSOR AMPS
L1
L2
L3
NO. 1
NO. 2
NO. 3
INDOOR-FAN AMPS
OUTDOOR-FAN AMPS
TEMPERATURES
OUTDOOR-AIR TEMPERATURE
DB
WB
RETURN-AIR TEMPERATURE
DB
WB
COOLING SUPPLY AIR
DB
WB
PRESSURES (Cooling Mode)
REFRIGERANT SUCTION, CIRCUIT 1
PSIG
F
REFRIGERANT SUCTION, CIRCUIT 2
PSIG
F
REFRIGERANT DISCHARGE, CIRCUIT 1
PSIG
F
REFRIGERANT DISCHARGE, CIRCUIT 2
PSIG
F
j VERIFY THAT 3-PHASE FAN MOTOR AND BLOWER ARE ROTATING IN CORRECT DIRECTION.
j VERIFY THAT 3-PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION
j VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS
GENERAL
j SET ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO MATCH JOB REQUIREMENTS
(IF EQUIPPED)
109
50HCQ
j VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS
50HCQ
Copyright 2011 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231
Edition Date: 05/12
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
110
Catalog No: 50HCQ---01SM
New
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