installation instructions lgh/lch036, 048, 060, 072 &

INSTALLATION
INSTRUCTIONS
LGH/LCH036, 048,
060, 072 & 074
Litho U.S.A.
©2016
WARNING
Improper installation, adjustment, alteration, ser­
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser­
vice must be performed by a licensed professional
HVAC installer or equivalent, service agency, or the
gas supplier
Table Of Contents
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Arrangements . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rigging Unit For Lifting . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Air Discharge . . . . . . . . . . . . . . . . . . . . . .
Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Test Gas Piping . . . . . . . . . . . . . . . . . . . . .
Page 2
Page 3
Page 5
Page 5
Page 5
Page 6
Page 6
Page 7
Page 7
Page 7
Page 9
Page 10
3, 4, 5 and 6 Ton
GAS AND COOLING PACKAGED UNITS
507410-03
3/2016
Supersedes 1/2016
High Altitude Derate . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . .
Blower Operation and Adjustments . . . . . . . . . . . .
Cooling Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Heat Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating Operation and Adjustments . . . . . . . . . . . .
Electric Heat Start-Up . . . . . . . . . . . . . . . . . . . . . . . .
Advanced Air Flow Control Start-Up . . . . . . . . . . . .
Hot Gas Reheat Startup . . . . . . . . . . . . . . . . . . . . . .
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Factory Unit Controller Settings . . . . . . . . . . . . . . .
CAUTION
Danger of sharp metallic edges. Can cause injury.
Take care and wear protective clothing when
servicing unit to avoid accidental contact with
sharp edges.
RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE
LG STANDARD AND HIGH EFFICIENCY SHOWN
Page 10
Page 11
Page 13
Page 46
Page 57
Page 59
Page 60
Page 61
Page 61
Page 64
Page 66
Page 69
LGH/LCH036, 048, 060, 072 & 074 DIMENSIONS in. - Gas heat section shown
5−5/8
(143)
11
(279)
16−1/4
(413)
18
(457)
AA
BB
7 (178)
BOTTOM
RETURN
AIR
OPENING
29
(737)
BOTTOM
SUPPLY
AIR
OPENING
47 (1194)
BASE
5 (127)
20
(508)
CENTER
OF
GRAVITY
25−3/4
(654)
FF
9−1/2
(241)
6−5/8
(168)
DD
26−1/2
(673)
EE
BOTTOM
CONDENSATE OUTLET
CC
BOTTOM POWER ENTRY
3 X 8 (76 X 203)
TOP VIEW (Base)
47 (1194)
BASE
END VIEW
35−3/8 (899) 036 thru 048S, H
43−3/8 (1102) 060 thru 074S, H
43−3/8 (1102) 036 thru 074U
83−1/4
(2115)
FLUE/VENT
OUTLET
ELECTRICAL
INLET
GAS
INLET
CONDENSATE
OUTLET
(EITHER SIDE)
5−1/2
(140)
15 (381)
1 (25)
3−1/2 (89)
26−1/2
(673)
LIFTING HOLES
(For rigging)
27
(686)
85−1/4 (2165)
BASE
SIDE VIEW
19−1/2
(495)
38-7/8 (987) 036 thru 048S, H
46-7/8 (1191) 060 thru 074S, H
46-7/8 (1191) 036 thru 074U
1 (25)
38−7/8 (987) 036 thru 048S, H
46−7/8 (1191) 060 thru 074S, H
46−7/8 (1191) 036 thru 074U
45
(1143)
18−3/8
(467)
11
(279)
2 (51)
29
(737)
20
(508)
FORKLIFT SLOTS
(Front, Back and
Blower End)
HORIZONTAL
SUPPLY AIR
OPENING
BACK VIEW
5−1/2 HORIZONTAL
RETURN AIR
(140)
OPENING
(Without Economizer)
5−1/2
(140)
85-1/4 (2165)
BASE
Page 2
LGH/LCH036, 048, 060, 072, 074
LGH036, 048, 060S, H & 072, 074H PARTS ARRANGEMENT
EVAPORATOR
COIL
FILTERS (4)
036, 048:16 X 20 X 2”
060, 072, 074: 20 X 20 X 2”
REHEAT COIL
(OPTIONAL)
TXV
BLOWER
MOTOR
(BELT DRIVE SHOWN)
CONDENSER
FAN
ECONOMIZER
(OPTIONAL)
BLOWER
COIL
GUARDS
(OPTIONAL)
CONDENSATE
DRAIN
CONDENSER
COIL
COMBUSTION
AIR INDUCER
BURNERS
GAS VALVE
UNIT
CONTROLLER
COMPRESSOR
LCH036, 048, 060S, H & 072, 074H PARTS ARRANGEMENT
EVAPORATOR
COIL
REHEAT COIL
(OPTIONAL)
TXV
FILTERS (4)
CONDENSER
FAN
036, 048:16 X 20 X 2”
060, 072, 074: 20 X 20 X 2”
BLOWER
CONDENSER
COIL
ECONOMIZER
(OPTIONAL)
CONDENSATE
DRAIN
BLOWER
ELECTRIC HEAT
MOTOR
(Optional)
(BELT DRIVE SHOWN)
UNIT
CONTROLLER
Page 3
LGH/LCH036, 048, 060, 072, 074
COMPRESSOR
LGH036, 048, 060, 074U PARTS ARRANGEMENT
FILTERS (4)
20 X 20 X 2”
EVAPORATOR
COIL
TXV
CONDENSER
FAN
ECONOMIZER
(OPTIONAL)
BLOWER
COIL
GUARDS
(OPTIONAL)
CONDENSER
COIL
CONDENSATE
DRAIN
GAS VALVE 1
(4-STG. GAS
HEAT SHOWN)
COMPRESSOR
BURNERS
GAS VALVE 2
(4-STG. GAS
HEAT SHOWN)
COMBUSTION
AIR INDUCER
UNIT
CONTROLLER
LCH036, 048, 060, 074U PARTS ARRANGEMENT
FILTERS (4)
EVAPORATOR
COIL
TXV
BLOWER
CONDENSER
FAN
20 X 20 X 2”
COIL
GUARDS
(OPTIONAL)
ECONOMIZER
(OPTIONAL)
CONDENSER
COIL
CONDENSATE
DRAIN
ELECTRIC
HEAT
UNIT
CONTROLLER
COMPRESSOR
Page 4
LGH/LCH036, 048, 060, 072, 074
Shipping and Packing List
WARNING
Package 1 of 1 contains:
1- Assembled unit
Check unit for shipping damage. Receiving party should
contact last carrier immediately if shipping damage is found.
Electric shock hazard and danger of
explosion. Can cause injury, death or
product or property damage. Turn off
gas and electrical power to unit before
performing any maintenance or
servicing operations on the unit. Follow
lighting instructions attached to unit
when putting unit back into operation
and after service or maintenance.
General
These instructions are intended as a general guide
and do not supersede local codes in any way.
Authorities having jurisdiction should be consulted
before installation.
The LGH units are available in several heating inputs. The
LCH cooling packaged rooftop unit is the same basic
design as the LGH unit except for the heating section.
Optional electric heat is available for LCH units. LGH and
LCH units have identical refrigerant circuits with
respective 3, 4, 5, and 6 ton cooling capacities.
NOTICE
Roof Damage!
This system contains both refrigerant and oil.
Some rubber roofing material may absorb oil,
causing the rubber to swell. Bubbles in the rubber
roofing material can cause leaks. Protect the roof
surface to avoid exposure to refrigerant and oil
during service and installation. Failure to follow
this notice could result in damage to roof surface.
Standard and high efficiency units are equipped with a
lightweight, all-aluminum condenser coil; optional fin/tube
condenser coils are available. Ultra high efficiency units are
equipped with fin/tube condenser coils.
Units are equipped with the compressors shown in table 1.
TABLE 1
COMPRESSORS
Unit
072H
T'Stat
Compressor
2-Stage
Single-Speed
036S, 048S, 060S,
036H, 048H, 060H, 074H
2- or 3-Stage
2-Step Capacity
036U, 048U, 060U, 074U
2- or 3-Stage
Variable Speed,
2-Step Capacity
036U, 048U, 060U, 074U
Zone Sensor
Variable Speed
UNIT CLEARANCES
C
B
D
In addition to standard heating and cooling, hot gas
reheat units provide a dehumidifying mode of operation.
Refer to Reheat Operation section.
High efficiency units may be equipped with a Unit
Controller that is factory-configured for “Advanced Air
Flow Control”. This option allows the installer to enter both
the design-specified supply air CFM and outdoor air
CFM. See the Advanced Air Flow Control Start-Up
section. These units are equipped with a variable speed,
direct drive blower and an economizer.
A
FIGURE 1
Availability of units and options varies by brand.
Requirements
See figure 1 for unit clearances.
IMPORTANT
The Clean Air Act of 1990 bans the intentional vent­
ing of refrigerant (CFC's and HCFC's) as of July 1,
1992. Approved methods of recovery, recycling or
reclaiming must be followed. Fines and/or incar­
ceration may be levied for non-compliance.
A
in.(mm)
B
in.(mm)
C
in.(mm)
D
in.(mm)
Top
Clearance
Service
Clearance
48
(1219)
36
(914)
36
(914)
36
(914)
Unob­
structed
Clearance to
Combustibles
36
(914)
1
(25)
1
(25)
1
(25)
Unob­
structed
Minimum Opera­
tion Clearance
36
(914)
36
(914)
36
(914)
36
(914)
Unob­
structed
Note - Entire perimeter of unit base requires support when elevated above
mounting surface.
1 Service Clearance - Required for removal of serviceable parts.
Clearance to Combustibles - Required clearance to combustible material
(gas units).
Minimum Operation Clearance - Required clearance for proper unit operation.
Page 5
LGH/LCH036, 048, 060, 072, 074
1Unit
Clearance
Use of this unit as a construction heater or air conditioner
is not recommended during any phase of construction.
Very low return air temperatures, harmful vapors and
operation of the unit with clogged or misplaced filters will
damage the unit.
If this unit has been used for heating or cooling of
buildings or structures under construction, the following
conditions must be met or the warranty will be void:
A room thermostat must control the unit. The use of
fixed jumpers that will provide continuous heating or
cooling is not allowed.
A pre-filter must be installed at the entry to the return
air duct.
The return air duct must be provided and sealed to
the unit.
Return air temperature range between 55°F (13°C)
and 80°F (27°C) must be maintained.
Air filters must be replaced and pre-filters must be
removed upon construction completion.
The input rate and temperature rise must be set per
the unit rating plate.
The heat exchanger, components, duct system, air
filters and evaporator coil must be thoroughly
cleaned following final construction clean-up.
The unit operating conditions (including airflow,
cooling operation, ignition, input rate, temperature
rise and venting) must be verified according to these
installation instructions.
Unit Support
In downflow discharge installations, install the unit on a
non-combustible surface only. Unit may be installed on
combustible surfaces when used in horizontal discharge
applications or in downflow discharge applications when
installed on an T1CURB / C1CURB / E1CURB roof
mounting frame.
NOTE - Securely fasten roof frame to roof per local codes.
CAUTION
To reduce the likelihood of supply / return air by­
pass and promote a proper seal with the RTU, duct
work / duct drops / diffuser assemblies must be
supported independently to the building structure.
A-Downflow Discharge Application
Roof Mounting with T1CURB / C1CURB / E1CURB
1- The roof mounting frame must be installed, flashed
and sealed in accordance with the instructions
provided with the frame.
3- Duct must be attached to the roof mounting frame
and not to the unit; supply and return plenums must
be installed before setting the unit.
Installer's Roof Mounting Frame
Many types of roof frames can be used to install the unit
depending upon different roof structures. Items to keep
in mind when using the building frame or supports are:
1- The base is fully enclosed and insulated, so an
enclosed frame is not required.
2- The frames or supports must be constructed with
non-combustible materials and should be square and
level to 1/16” per linear foot (5mm per linear meter)
in any direction.
3- Frame or supports must be high enough to prevent
any form of moisture from entering unit.
Recommended minimum frame height is 14”
(356mm).
4- Duct must be attached to the roof mounting frame
and not to the unit. Supply and return plenums must
be installed before setting the unit.
5- Units require support along all four sides of unit base.
Supports must be constructed of steel or suitably
treated wood materials.
NOTE-When installing a unit on a combustible surface for
downflow discharge applications, a T1CURB / C1CURB /
E1CURB roof mounting frame is required.
B-Horizontal Discharge Applications
1- Units which are equipped with an optional
economizer and installed in horizontal airflow
applications must use a horizontal conversion kit.
2- Specified installation clearances must be maintained
when installing units. Refer to figure 1.
3- Top of support slab should be approximately 4”
(102mm) above the finished grade and located so no
run-off water from higher ground can collect around
the unit.
4- Units require support along all four sides of unit base.
Supports must be constructed of steel or suitably
treated wood materials.
Duct Connection
All exterior ducts, joints and openings in roof or building
walls must be insulated and weather-proofed with
flashing and sealing compounds in accordance with
applicable codes. Any duct passing through an
unconditioned space must be insulated.
CAUTION
2- The roof mounting frame should be square and level
In downflow applications, do not drill or punch
to 1/16” per linear foot (5mm per linear meter) in any
holes in base of unit. Leaking in roof may occur if
unit base is punctured.
direction.
Page 6
LGH/LCH036, 048, 060, 072, 074
Rigging Unit For Lifting
UNIT SUPPLY AND RETURN AIR OPENINGS
Rig unit for lifting by attaching four cables to holes in unit
base rail. See figure 2.
1- Detach wooden base protection before rigging.
HORIZONTAL
RETURN AIR
OPENING
HORIZONTAL
SUPPLY AIR
OPENING
2- Remove all six base protection brackets before
setting unit.
3- Connect rigging to the unit base using both holes in
each corner.
4- All panels must be in place for rigging.
5- Place field‐provided H‐style pick in place just above
top edge of unit. Frame must be of adequate
strength and length. (H-style pick prevents damage
to unit.)
Unit
*Weight
Lbs. Kg.
LG
960
435
LC
933
423
IMPORTANT - ALL
PANELS MUST
BE IN PLACE
FOR RIGGING.
DOWNFLOW
SUPPLY AIR
OPENING
DOWNFLOW
RETURN AIR
OPENING
FIGURE 3
5- Install return air duct beneath outdoor air intake. See
figure 4. Install barometric relief damper in lower
hood and install in ductwork as shown in figure 4.
HORIZONTAL RETURN AIR DUCTWORK
WITH ECONOMIZER
*Maximum weight with all available
factory-installed accessories.
UNIT
LIFTING POINT SHOULD
BE DIRECTLY ABOVE
CENTER OF GRAVITY
HORIZONTAL
RETURN AIR
DUCT
CAUTION - Do
not walk on unit.
INSTALL BAROMETRIC RELIEF DAMPERS
AND HOOD IN RETURN AIR DUCT
FIGURE 2
Horizontal Air Discharge
Unit is shipped with panels covering the horizontal supply
and return air openings. Remove horizontal covers and
place over downflow openings for horizontal air discharge.
See figure 3. Secure in place with sheet metal screws.
FIGURE 4
Condensate Drains
Make drain connection to the drain coupling provided on
unit. Older model units have a 3/4” N.P.T. coupling and
newer model units have a 1” N.P.T. coupling.
Note - The drain pan is made with a glass reinforced
engineered plastic capable of withstanding typical joint
torque but can be damaged with excessive force. Tighten
pipe nipple hand tight and turn an additional quarter turn.
Units Equipped With An Optional Economizer
1- Remove the horizontal supply air cover and position
over the downflow supply air opening. Secure with
A trap must be installed between drain connection and an
sheet metal screws.
open vent for proper condensate removal. See figure 5 or
2- Leave the horizontal return air cover in place.
6. It is sometimes acceptable to drain condensate onto
3- Locate the separately ordered horizontal air
the roof or grade; however, a tee should be fitted to the
discharge kit. Place the kit panel over the downflow
trap to direct condensate downward. The condensate line
return air opening.
must be vented. Check local codes concerning
condensate disposal. Refer to pages 1 and 2 for
4- Remove and retain the barometric relief dampers and
lower hood.
condensate drain location.
Page 7
LGH/LCH036, 048, 060, 072, 074
Two hinge screws must be removed in addition to the
mullion screws. See figure 8.
CONDENSATE SIDE DRAIN CONNECTION
CAULK AROUND CONDENSATE COUPLING
UNITS WITH HINGED PANELS
NOTE - Allow clearance to
open doors when installing
condensate piping.
Minimum Pitch
1” (25 mm) per
10' (3 m) of line
CONDENSATE
DRAIN MULLION
UNIT
OPEN VENT
ÁÁ
ÁÁ
ÁÁ
ÁÁ
REMOVE
TWO
SCREWS
MOUNTING
FRAME
FIGURE 8
FIGURE 5
2- Lift the front edge of the drain pan and slide pan out
of unit. See figure 9.
CONDENSATE BOTTOM DRAIN CONNECTION
UNIT
REMOVE DRAIN PAN
DRAIN PAN
CAULK AROUND
CONDENSATE COUPLING
OPEN VENT
MOUNTING
FRAME
DRAIN PAN
Minimum Pitch
1” (25 mm) per 10'
(3 m) of line
FIGURE 9
FIGURE 6
3- Make sure the cap over the unit bottom drain hole is
secure.
Units are shipped with the drain coupling facing the front
of the unit. Condensate can be drained from the back or
bottom of the unit with the following modifications. The
unit can be installed in either downflow or horizontal air
discharge regardless of condensate drain location.
4- Rotate the drain pan until the downward slope is
toward the back of the unit. Slide the drain pan back
into the unit. Be careful not to dislodge the cap over
the bottom drain hole.
Rear Drain Connection
1- Remove the condensate drain mullion. See figure 7.
Remove the two panels on each side of the mullion.
5- From the back side of the unit, pull the drain pan
coupling through the rear condensate opening.
6- Replace the condensate drain mullion.
Bottom Drain Connection
1- Remove the condensate drain mullion. See figure 7.
2- Lift the front edge of the drain pan and slide pan out
of unit. See figure 9.
3- Turn the drain pan upside down and drill a pilot hole
through the bottom of the drain pan in the center of
the coupling. See figure 10.
CONDENSATE
DRAIN MULLION
FIGURE 7
Page 8
LGH/LCH036, 048, 060, 072, 074
When making piping connections a drip leg should be
installed on vertical pipe runs to serve as a trap for
sediment or condensate. A 1/8” N.P.T. plugged tap is
located on gas valve for test gauge connection. Refer to
Heating Start-Up section for tap location. Install a ground
joint union between the gas control manifold and the
main manual shut-off valve. See figure 11 for gas supply
piping entering outside the unit. Figure 12 shows
complete bottom gas entry piping.
BOTTOM CONDENSATE DRAIN
CAUTION: Be careful not to
damage the coupling threads
when drilling the hole.
DRILL A PILOT
HOLE IN CENTER
OF COUPLING
Compounds used on threaded joints of gas piping shall be
resistant to the action of liquified petroleum gases.
Do not use Teflon® tape to seal gas piping. Use a
moderate amount of pipe compound on the gas pipe only.
Make sure the two end threads are bare.
After drilling the pilot
hole, drill a 7/8” hole from
the inside of the pan.
CAUTION
FIGURE 10
4- From the inside of the pan, use a Vari-Bit® bit to
enlarge the hole to 7/8”. Do not damage coupling
threads.
If a flexible gas connector is required or allowed by
the authority that has jurisdiction, black iron pipe
shall be installed at the gas valve and extend out­
side the furnace cabinet.
WARNING
5- Remove the cap over the unit bottom drain hole.
Do not exceed 600 in-lbs (50 ft.-lbs) torque when at­
taching the gas piping to the gas valve.
6- Slide the drain pan back into the unit.
7- From the back side of the unit, pull the drain pan
coupling through the rear condensate opening.
8- From the front side of the unit, move the drain pan
until the bottom coupling settles into the unit bottom
drain opening. Once in place, check to make sure the
coupling is still positioned through the rear
condensate drain hole.
IMPORTANT
Compounds used on threaded joints of gas piping
must be resistant to the actions of liquified petro­
leum gases.
OUTSIDE OF UNIT GAS PIPE CONNECTION
TO GAS
VALVE
9- Use a field-provided 3/4” plug to seal side drain
connection.
10- Replace the condensate drain mullion.
Connect Gas Piping (Gas Units)
Before connecting field-provided piping, check with gas
company or authorities having jurisdiction for local code
requirements. When installing gas supply piping, length
of run from gas meter must be considered in determining
pipe size for 0.5” w.c. (.12kPa) maximum pressure drop.
Do not use supply pipe smaller than unit gas connection.
Operating pressures at the unit gas connection must be
as shown in table 2.
TABLE 2
OPERATING PRESSURE AT GAS CONNECTION “w.c.
Natural Gas
036-074
Max.
Min.
Max.
4.5
10.5
11
13
DRIP LEG
GAS PIPING
SUPPORT
FIGURE 11
Page 9
LGH/LCH036, 048, 060, 072, 074
TO GAS
SUPPLY
MANUAL MAIN
SHUT-OFF VALVE
LP / Propane Gas
Min.
GROUND
JOINT UNION
(REFER TO
LOCAL CODES)
NOTE-In case emergency shut down is required, turn off
the main manual shut-off valve and disconnect main
power to unit. These devices should be properly labeled
by the installer.
BOTTOM ENTRY GAS PIPING COMPLETED
TO GAS
VALVE
GROUND
JOINT UNION
PRESSURE TEST GAS LINE
STREET
ELBOW
MANUAL MAIN
7” NIPPLE
SHUT-OFF VALVE
TO GAS
SUPPLY
2-1/2” NIPPLE
DRIP LEG
MANUAL MAIN
SHUT-OFF VALVE
Grommets for both gas pipe openings are field provided.
GAS VALVE
CAP
FIGURE 12
Pressure Test Gas Piping (Gas Units)
When pressure testing gas lines, the gas valve must
be disconnected and isolated. Gas valves can be
damaged if subjected to more than 0.5 psig (3.48kPa).
See figure 13.
NOTE-Codes may require that manual main shut-off
valve and union (furnished by installer) be installed in
gas line external to unit. Union must be of the ground
joint type.
After all connections have been made, check all piping
connections for gas leaks. Also check existing unit gas
connections up to the gas valve; loosening may occur
during installation. Use a leak detection solution or other
preferred means. Do not use matches candles or other
sources of ignition to check for gas leaks.
FIGURE 13
High Altitude Derate
Locate the high altitude conversion sticker in the unit
literature bag. Fill out the conversion sticker and affix next
to the unit nameplate.
Refer to table 3 for high altitude adjustments.
TABLE 3
HIGH ALTITUDE DERATE
Altitude Ft.*
2000-4500
4500 And Above
Gas Manifold Pressure
See Unit Nameplate
Derate 2% / 1000 Ft. Above Sea Level
*Units installed at 0-2000 feet do not need to be modified.
CAUTION
Some soaps used for leak detection are corrosive
to certain metals. Carefully rinse piping thoroughly
after leak test has been completed. Do not use
matches, candles, flame or othe sources of ignition
to check for gas leaks.
NOTE ‐ This is the only permissible derate for these units.
WARNING
Danger of explosion. Can cause injury
or product or property damage. Do not
use matches, candles, flame or other
sources of ignition to check for leaks.
Page 10
LGH/LCH036, 048, 060, 072, 074
B-Control Wiring
Electrical Connections
POWER SUPPLY
Do not apply power or close disconnect switch until
installation is complete. Refer to start-up directions.
Refer closely to unit wiring diagram.
Refer to unit nameplate for minimum circuit ampacity
and maximum fuse size.
1- Units are factory-wired for 230,460,575 volt supply.
For 208V supply, remove the insulated terminal cover
from the 208V terminal on the control transformer.
Move the wire from the transformer 240V terminal to
the 208V terminal. Place the insulated terminal cover
on the unused 240V terminal.
2- Route power through the bottom power entry area
and connect to L1, L2, and L3 on the top of K1 in
control area above compressor. Secure power
wiring with factory-installed wire ties provided in
control box. Route power to TB2 on units equipped
with electric heat. Route power to S48 or CB10 If
unit is equipped with the optional disconnect
switch or circuit breaker. See unit wiring diagram.
3- Solar-Ready Units Only All solar-ready units are equipped with an S48 circuit
breaker and F54 solar fuse block. Connect power
wiring to the top of S48. Connect solar module wiring
to the pigtails provided on the bottom of F54. Solar
equipment must be specified for use with this unit.
CONTROL WIRING
CAUTION
Electrostatic discharge can affect electronic com­
ponents. Take precautions during unit installation
and service to protect the electronic controls. Pre­
cautions will help to avoid control exposure to elec­
trostatic discharge by putting the unit, the control
and the technician at the same electrostatic poten­
tial. Neutralize electrostatic charge by touching
hands and all tools on an unpainted unit surface,
such as the gas valve or blower deck, before per­
forming any service procedure.
A-Thermostat Location
Room thermostat mounts vertically on a standard 2” X 4”
handy box or on any non-conductive flat surface.
Locate thermostat approximately 5 feet (1524mm)
above the floor in an area with good air circulation at
average temperature. Avoid locating the room
thermostat where it might be affected by:
The Unit Controller will operate the unit from a
thermostat or zone sensor based on the System Mode.
The default System Mode is the thermostat mode. Refer
to the Unit Controller Installation and Setup Guide to
change the System Mode. Use the menu navigation
arrows and select button; see Settings - Install.
Thermostat Mode
1- Route thermostat cable or wires from subbase to
control area above compressor (refer to unit
dimensions to locate bottom and side power entry).
IMPORTANT - Unless field thermostat wires are rated
for maximum unit voltage, they must be routed away
from line voltage wiring. Use wire ties located near the
lower left corner of the controls mounting panel to
secure thermostat cable.
Use18 AWG wire for all applications using remotely
installed
electro-mechanical
and
electronic
thermostats.
2- Install thermostat assembly in accordance with
instructions provided with thermostat.
3- Connect thermostat wiring to Unit Controller on the
lower side of the controls hat section.
4- Wire as shown in figure 14 for electro-mechanical
and electronic thermostats. If using other
temperature control devices or energy management
systems see instructions and wiring diagram
provided by manufacturer.
IMPORTANT-Terminal connections at the wall plate or
subbase must be made securely. Loose control wire
connections may allow unit to operate but not with proper
response to room demand.
Zone Sensor Mode
The Unit Controller will operate heating and cooling
based on the Unit Controller internal setpoints and the
temperature from the A2 zone sensor. An optional
Network Control Panel (NCP) can also be used to provide
setpoints. A thermostat or return air sensor can be used
as a back-up mode. Make zone sensor wiring
connections as shown in figure 15.
-drafts or dead spots behind doors and in corners
-hot or cold air from ducts
-radiant heat from sun or appliances
-concealed pipes and chimneys
Page 11
LGH/LCH036, 048, 060, 072, 074
24 V POWER
R
C
TO UNIT CONTROLLER
THERMOSTAT INPUTS
TO R
2
K55
G
B
W1
S86
2
7
K55−1
W2
A
TO G
5
2
TO Y1
Y1
Y2
P297
J297A
ALL
OTHER
THERMOSTAT
SIGNALS REMAIN CONNECTED
AS SHOWN ON THE RIGHT.
R
1
C
2
B
A55
10
11
G
3
W1
4
W1
W2
5
W2
Y1
6
Y2
7
OCP
C
OCP
TO PROVIDE SUPERMARKET REHEAT SCHEME
USE S86 DEHUMIDISTAT AND K55.
P262
J262C
FIELD WIRING WITH ELECTRONIC AND ELECTRO-MECHANICAL THERMOSTATS
(Thermostat Mode)
12
8
9
10
FIGURE 14
Humidity Sensor Cable Applications:
FIELD WIRING IN ZONE SENSOR MODE
(Zone Sensor Mode)
Wire runs of 50 feet (mm) or less:
Use two separate shielded cables containing 20AWG
minimum, twisted pair conductors with overall shield.
Belden type 8762 or 88760 (plenum) or equivalent.
Connect both cable shield drain wires to the Unit
Controller as shown in figure 16.
UNIT CONTROLLER
24VAC SENSOR SENSOR
OUTPUTS
IAQ
R
C
AI1
HUM
TMP D01
D02
Wire runs of 150 feet (mm) or less:
Use two separate shielded cables containing 18AWG
minimum, twisted pair conductors with overall shield.
Belden type 8760 or 88760 (plenum) or equivalent.
Connect both cable shield drain wires to the Unit
Controller as shown in figure 16.
J298
FIELD WIRING REHEAT UNITS (Using A Humidity
Sensor With Less Than 150 Ft. Wire Runs)
J298A
FIGURE 15
A91
C-Hot Gas Reheat or Ultra High Efficiency Units Only 1- Install humidity sensor in accordance with
instructions provided with sensor. A DDC input may
be used to initiate dehumidification instead of a
sensor.
2- Make wiring connections as shown in figure 14 for
Thermostat Mode or figure 15 for Zone Sensor
Mode. In addition, connect either a humidity
sensor or a dehumidification input. See figure 16
or 17 for humidity sensor wiring or figure 18 for
dehumidification input wiring.
VIN
VO 2
B
C
P298
R
10
2
C
11
3
AI−1
1
4
5
HUM
12
6
GND
D
7
TMP
8
DO−1
9
C
10
DO−2
DI−1
P262
J262B
A2 SENSOR
5
6
FIGURE 16
Page 12
LGH/LCH036, 048, 060, 072, 074
Wire runs over 150 feet (mm):
Use a local, isolated 24VAC transformer such as
Lennox cat #18M13 (20VA minimum) to supply power
to RH sensor as shown in figure 17. Use two shielded
cables containing 20AWG minimum, twisted pair
conductors with overall shield. Belden type 8762 or
88760 (plenum) or equivalent.
FIELD WIRING REHEAT UNITS
(Using A Humidity Sensor With
More than 150 Ft. Wire Runs)
NOT
CONNECTED
ISOLATED 24V
TRANSFORMER
A55 UNIT
CONTROLLER
J298A
A91
VIN
DRAIN
B
NOT
CONNECTED
C
1
P298
R
2
C
3
AI-1
Blower Operation and Adjustments
Units are equipped with one of three factory-installed
blower options. The ninth character in the model number
identifies the blower as follows:
E= High efficiency three-, four- and five-ton units are
equipped with a variable speed, direct drive blower.
When these units are also equipped with an
economizer and configured for Advanced Air Flow
Control, the installer is able to enter the
design-specified supply and outdoor air CFM into
the Unit Controller. This eliminates the need to
manually take measurements and adjust settings.
See Advanced Air Flow Control Start-Up section.
Ultra high efficiency units are also equipped with a
variable speed, direct drive blower. The installer is
able to enter the design-specified supply air CFM
into the Unit Controller for optimal efficiency. The
Unit Controller calibrates the supply air volume
which eliminates the need to manually take duct
static measurements. Refer to D-Adjusting Unit
CFM - Ultra High Efficiency Direct Drive Blowers.
4
HUM
5
6
GND
D
VO
7
TMP
8
DO-1
9
C
10
DO-2
DI-1
T= Units are equipped with a two-stage belt drive blower.
B= Units are equipped with a single-stage belt drive
blower.
FIGURE 17
FIELD WIRING REHEAT UNITS
(Using A Dehumidification Switch)
Note - Six-ton, non-ultra high efficiency units are
available with belt drive blowers only.
J299
DEHUMIDIFICATION
SWITCH
7
R
8
DI−4
9
C
10
IMPORTANT
Three phase scroll compressors must be phased
sequentially for correct compressor and blower
rotation. Follow “COOLING START-UP” section of
installation instructions to ensure proper compres­
sor and blower operation.
Use 24 VAC (R) from any terminal
available on J299−2, −5, or −7.
FIGURE 18
Page 13
LGH/LCH036, 048, 060, 072, 074
A-Blower Operation
TABLE 4
MINIMUM AIRFLOW-LCH UNITS WITH ELECTRIC
HEAT (DIRECT DRIVE)
Refer to the Unit Controller Installation and Setup Guide
to energize blower. Use the menu navigation arrows and
select button; see SERVICE > TEST.
B-Determining Unit CFM
1- The following measurements must be made with air
filters in place.
kW
LCH036H, U
LCH048H, U
LCH060H, U
LCH074U
Note - Static pressure readings can vary if not taken
where shown.
1080
1280
1600
TABLE 5
MINIMUM AIRFLOW-LCH UNITS WITH ELECTRIC
HEAT (BELT DRIVE)
IMPORTANT - High Efficiency Units On units equipped with direct drive blowers, a low speed
adjustment less than 2/3 of high speed will improve
humidity removal; refer to product data for more
information.
2- With all access panels in place, measure static
pressure external to unit (from supply to return).
Blower performance data is based on static pressure
readings taken in locations shown in figure 19.
CFM
Downflow & Horizontal Airflow
kW
30
22.5
15
7.5
CFM
Downflow
Horizontal
1900
1500
1200
1050
2000
1600
1300
1200
C-Adjusting Unit CFM - High Efficiency Direct Drive
Blowers
3- Measure the indoor blower wheel RPM.
Note - To adjust CFM on units configured for optional
“Advanced Air Flow Control”, refer to Advanced Air Flow
Control Start-Up section.
4- Referring to Page 20 through Page 43, use static
pressure and RPM readings to determine unit CFM.
Use Page 44 when installing units with any of the
options or accessories listed. Refer to table 4 or 5 for
minimum airflow when electric heat is installed.
The supply CFM can be adjusted by changing Unit
Controller settings. Refer to table 6 for menu paths and
default settings. Adjustments can also be made by using
optional software. Record any CFM changes on the
parameter settings label located on the inside of the
compressor access panel.
LOCATION OF STATIC PRESSURE READINGS
INSTALLATIONS WITH DUCTWORK
INSTALLATIONS WITH CEILING DIFFUSERS
ROOFTOP UNIT
ROOFTOP UNIT
RETURN AIR
READING LOCATION
SUPPLY
MAIN
DUCT RUN
RE­
TURN
SUPPLY
FIRST BRANCH
OFF OF MAIN RUN
SUPPLY AIR
READING
LOCATION
SUPPLY AIR
READING
LOCATION
RE­
TURN
RETURN AIR
READING
LOCATION
DIFFUSER
FIGURE 19
Page 14
LGH/LCH036, 048, 060, 072, 074
D-Adjusting Unit CFM - Ultra High Efficiency Direct
Drive Blowers
The supply CFM can be adjusted by changing Unit
Controller settings. Refer to table 7 for menu paths and
default settings. Record any CFM changes on the
parameter settings label located on the inside of the
compressor access panel.
CAUTION
The BLOWER CALIBRATION process starts the in­
door blower at operational speeds and moves the
economizer damper blades. Before starting this pro­
cess, replace any access panels and close all unit
doors except compressor compartment door.
Blower calibration is required only on units that are newly
installed or if there is a change in the duct work or air filters
after installation. After the new CFM values are entered,
use the down and up arrow buttons to select START
CALIBRATION. Push SAVE to start calibration. The
blower calibration status is displayed as a % complete.
Upon successful completion, the Unit Controller will
display CALIBRATION SUCCESS and go back to the
blower calibration screen. Press the MAIN MENU button
to go to the main menu and press the BACK button to go
to the status screen.
If only the CFM values are updated, use the down and up
arrow buttons to select “CALIBRATION DONE”. Push
SAVE to enter the updated values. This selection will not
initiate calibration, resulting in less setup time. Press the
MAIN MENU button to go to the main menu and press the
BACK button to go to the status screen.
IMPORTANT - On ultra high efficiency units, the default
value for Cooling Low CFM is lower than a traditional
singe- or two-speed unit. If operating the unit with a 2- or
3-stage controller (2- or 3-stage thermostat, DDC
controller, etc.), it is recommended to increase the
Cooling Low CFM default value to a suitable level for
part load cooling (typically 60% of full load CFM).
Page 15
LGH/LCH036, 048, 060, 072, 074
TABLE 6
036, 048, 060H DIRECT DRIVE PARAMETER SETTINGS
LGH/LCH Unit Factory Default Settings
Parameter
036 H4E
048 H4E
060 H4E
036-060 S4T
Field Setting
Description
SETUP > TEST & BALANCE > BLOWER
HIGH SPEED
55%
30%
59%
Not Applicable
Percentage torque for indoor
blower high speed.
LOW SPEED
28%
40%
36%
Not Applicable
Percentage torque for indoor
blower low speed.
SETUP > TEST & BALANCE > DAMPER
BLOWER ON HIGH
10%
10 %
10 %
10 %
Minimum damper position during
high speed blower operation.
BLOWER ON LOW
15 %
15 %
15 %
Not Applicable
Minimum damper position during
low speed blower operation.
59%
Not Applicable
Percentage torque for indoor
blower smoke speed.
SETTINGS > RTU OPTIONS > EDIT PARAMETER = 6
BLOWER SMOKE
OUTPUT
55%
80%
Installer: Circle applicable unit model number and record any parameter changes under “Field Setting” column. Settings need to be recorded by
installer for use when Unit Controller is replaced or reprogrammed.
TABLE 7
036, 048, 060, 074U DIRECT DRIVE PARAMETER SETTINGS
LGH/LCH036-074U4E Parameter Settings
Factory Setting
Parameter
036
048
060
074
Field
Setting
Description
Note: Any changes to Smoke CFM setting must be adjusted before the other CFM settings. Use SETTINGS > RTU OPTIONS > EDIT
PARAMETERS = 12
BLOWER SMOKE CFM
1200
1600
2000
2400
CFM Smoke blower speed
SETUP > TEST & BALANCE > BLOWER
BLOWER HEATING HIGH CFM 1200
1600
2000
2000
CFM High heat blower speed
BLOWER HEATING LOW CFM
N/A
1250
1250
1250
CFM
BLOWER COOLING HIGH
CFM
1100
1450
1825
2200
CFM High cooling blower speed
BLOWER COOLING LOW CFM
575
750
950
950
CFM Low cooling blower speed
BLOWER VENTILATION CFM
575
750
950
1150
CFM Ventilation blower speed
Low heat blower speed (applies to 150kBtuh 4-stg. gas heat
only)
SETUP > TEST & BALANCE > DAMPER
BLOWER HIGH CFM DAMPER
POS %
0%
0%
0%
0%
% Minimum damper position for high speed blower operation.
BLOWER LOW CFM DAMPER
POS %
0%
0%
0%
0%
% Minimum damper position for low speed blower operation.
POWER EXHAUST DAMPER
POS %
50%
50%
50%
50%
% Minimum damper position for power exhaust operation.
SETTINGS > RTU OPTIONS > EDIT PARAMETERS = 216
POWER EXHAUST DEAD­
BAND %
10%
10%
10%
10%
% Deadband % for power exhaust operation.
SETTINGS > RTU OPTIONS > EDIT PARAMETER = 10 (Applies to Thermostat Mode ONLY)
FREE COOLING STAGE-UP
DELAY
300
sec.
300
sec.
300
sec.
300
sec.
sec
Number of seconds to hold indoor blower at low speed before
switching to indoor blower at high speed.
Installer: Circle applicable unit model number and record any parameter changes under “Field Setting” column. Settings need to be recorded
by installer for use when Unit Controller is replaced or reprogrammed.
Page 16
LGH/LCH036, 048, 060, 072, 074
D-Adjusting Unit CFM - Belt Drive Blowers
PULLEY ALIGNMENT
ALIGNED
The blower RPM can be adjusted at the motor pulley.
Loosen Allen screw and turn adjustable pulley clockwise
to increase CFM. Turn counterclockwise to decrease
CFM. See figure 21. Do not exceed minimum and
maximum number of pulley turns as shown in table 8.
TABLE 8
MINIMUM AND MAXIMUM PULLEY ADJUSTMENT
Belt
Min. Turns Open
Maxi. Turns Open
A Section
No minimum
5
MOTOR
PULLEY
BELT
BLOWER
PULLEY
NOT ALIGNED
FIGURE 20
3- To loosen belt tension Slide blower motor upward to loosen the belt. This
decreases the distance between the blower motor
and the blower housing.
E-Blower Belt Adjustment - Belt Drive
Maximum life and wear can be obtained from belts only
if proper pulley alignment and belt tension are
maintained. Tension new belts after a 24-48 hour
period of operation. This will allow belt to stretch and
seat grooves. Make sure blower and motor pulley are
aligned as shown in figure 20.
1- Loosen four bolts securing motor base to mounting
frame. See figure 21.
2- To increase belt tension Slide blower motor downward to tighten the belt. This
increases the distance between the blower motor and
the blower housing.
4- Tighten four bolts securing motor base to the
mounting frame.
F-Blower Belt Adjustment - Units Equipped With An
Optional Belt Tensioner
1- Remove blower belt.
2- Remove bracket from blower housing. See figure 23.
3- Remove the screw from the back side of the bracket.
4- Move the tensioner to the appropriate adjustment
hole and reinstall screw.
5- Replace bracket.
6- Replace blower belt. See figure 24.
BLOWER ASSEMBLY
TO INCREASE CFM
TO DECREASE CFM
LOOSEN ALLEN SCREW &
TURN PULLEY CLOCKWISE
TURN PULLEY
COUNTERCLOCKWISE
SIDE VIEW
LOOSEN ALLEN
SCREW TO
ADJUST CFM
MOTOR
ALLEN
SCREW
PULLEY
TO INCREASE BELT TENSION
1-Loosen four bolts securing motor base to mounting
frame.
2-Slide the motor downward to tighten the belt.
3-Tighten four bolts on motor base.
LOOSEN FOUR BOLTS AND
SLIDE BLOWER MOTOR
DOWNWARD TO TIGHTEN BELT
FIGURE 21
Page 17
LGH/LCH036, 048, 060, 072, 074
G-Check Belt Tension
ADJUST BELT TENSIONER
Overtensioning belts shortens belt and bearing life.
Check belt tension as follows:
MAXIMUM
TENSION
INDICATOR SHOULD BE
BETWEEN MINIMUM AND
MAXIMUM TENSION LINES
1- Measure span length X. See figure 22.
2- Apply perpendicular force to center of span (X) with
enough pressure to deflect belt 1/64” for every inch
of span length or 1.5mm per 100mm of span length.
MINIMUM
TENSION
Example: Deflection distance of a 40” span would be
40/64” or 5/8”.
Example: Deflection distance of a 400mm span
would be 6mm.
TIGHTEN MOUNTING
BOLT TO 22 LB./FT.
USING 9/16” WRENCH
MEASURE BELT TENSION
FORCE
BRACKET
DEFLECTION 1/64” PER INCH OF SPAN
OR 1.5mm PER 100mm OF SPAN
FIGURE 22
3- Measure belt deflection force. For a used belt, the
deflection force should be 5 lbs. (35kPa). A new belt
deflection force should be 7 lbs. (48kPa).
A force below these values indicates an
undertensioned belt. A force above these values
indicates an overtensioned belt.
H-Field-Furnished Blower Drives
For field-furnished blower drives, use page 20 through 44
to determine BHP and RPM required. Reference page 45
to determine the drive kit number. Reference table 9 for
manufacturer's drive numbers.
TENSIONER
TIGHTEST
BELT
POSITION
FACTORY-SET
POSITION
TIGHTER
BELT
POSITION
FIGURE 23
Page 18
LGH/LCH036, 048, 060, 072, 074
INSTALL BELT
DRIVER
1 TENSIONER
PULLEY
2
DRIVEN
PULLEY
3
ROTATE DRIVEN
PULLEY TO SEAT BELT
4
FIGURE 24
Page 19
LGH/LCH036, 048, 060, 072, 074
Page 20
BLOWER DATA - LGH DIRECT DRIVE - 3 TON - HIGH EFFICIENCY
719
663
593
527
460
---
---
---
---
---
---
---
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
---
722
665
607
538
482
407
---
---
---
---
---
---
65
60
55
49
44
39
807
708
634
523
437
344
---
---
---
---
---
---
---
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
75
69
63
56
50
44
---
---
---
---
---
---
---
823
732
648
541
468
372
External
Static
20%
Press.
in. w.g. Cfm Watts RPM
HORIZONTAL
796
0
External
Static
20%
Press.
in. w.g. Cfm Watts RPM
DOWNFLOW
---
---
187
178
170
161
154
143
135
126
117
108
---
---
1011
979
942
898
864
801
751
695
633
564
---
---
---
---
---
---
---
615
688
759
841
906
982
---
---
---
---
---
---
---
116
107
98
88
77
65
---
---
---
---
---
---
---
817
742
669
583
513
431
---
---
584
645
708
762
817
885
939
994
1048
1103
1157
---
---
184
182
178
174
167
156
146
134
120
104
86
---
---
1105
1050
991
938
883
812
752
690
625
559
490
Cfm Watts RPM
---
---
605
676
743
808
855
924
971
1018
1064
1110
494
Cfm Watts RPM
---
---
---
---
---
---
---
761
708
651
585
523
98
40%
---
---
---
---
---
---
---
104
97
91
83
76
1154
30%
---
---
---
---
---
---
---
692
749
806
864
915
451
Cfm Watts RPM
69
Cfm Watts RPM
975
40%
30%
50%
---
---
240
229
220
209
202
190
180
171
160
151
140
---
---
780
832
892
941
990
1053
1101
1150
1206
1247
1299
---
---
235
230
222
215
207
194
183
171
156
143
126
1137
1181
1211
1256
1300
1330
1375
1404
---
---
304
294
280
269
258
250
238
225
216
203
193
181
1281
1325
1361
1398
1435
1471
1508
1537
1570
---
1124
---
1142
1087 1192
1033 1237
991
946
914
866
815
780
725
687
639
1119
1162
1220
1263
1306
1363
1391
1441
---
---
1106
---
923
976
1059 1019
1002 1076
954
905
838
785
729
663
612
546
80%
90%
100%
70%
---
364
353
342
331
319
308
296
285
272
259
248
236
1468
1511
1540
1569
1612
1641
1670
1697
---
1251
1141 1295
1100 1352
1061 1381
1020 1425
976
939
899
858
815
770
733
692
80%
433
424
411
404
392
379
365
355
344
328
316
304
292
1629
1662
1689
1724
1754
1784
1807
1474
1189 1373
1158 1420
1112
1088 1513
1049 1548
1007 1588
963
932
900
850
815
779
744
90%
495
490
480
472
463
450
437
424
413
398
384
369
357
1746
1784
1809
1835
1866
1898
1917
1207 1494
1177 1544
1137 1595
1105 1645
1074 1670
1036 1708
995
960
930
890
853
815
785
100%
558
555
549
539
533
522
508
493
481
469
452
433
422
1225
1195
1161
1121
1100
1065
1028
988
959
930
891
850
825
---
295
285
277
266
256
246
232
221
209
192
183
167
1269
1307
1361
1399
1446
1491
1522
1565
1122
---
---
1155 1070
1107
1068 1168
1013 1222
971
927
865
818
769
701
666
602
---
359
348
337
324
312
301
285
273
258
243
231
214
1418
1451
1502
1535
1585
1619
1652
1688
---
1166
1169 1217
1125 1267
1084 1317
1034 1368
988
949
892
849
796
742
704
647
434
423
411
397
383
367
356
339
326
307
294
280
262
1570
1614
1653
1696
1731
1766
1795
1222 1265
1184 1327
1144 1379
1100 1431
1054 1484
1005 1536
971
918
881
823
783
742
692
481
475
467
456
444
430
420
406
392
376
361
346
328
1689
1725
1771
1807
1843
1879
1901
1545
1234 1364
1195 1436
1158 1491
1117
1073 1599
1026 1653
993
949
908
860
820
779
734
527
526
522
516
506
494
484
473
458
444
429
413
393
1246
1207
1172
1134
1092
1047
1014
980
935
896
857
815
776
Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM
60%
Percentage of Total Motor Torque
---
988
1049 1032
---
70%
Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM
1442
1006 1092
966
922
889
833
783
737
679
626
567
Cfm Watts RPM
---
---
819
884
940
995
1033
1090
1136
1174
1220
1257
1298
60%
Percentage of Total Motor Torque
Cfm Watts RPM
50%
NOTE - Default Speed Settings (percentage of blower torque) - Low 28% / High 55%
See page 45 for wet coil and options/accessory air resistance data.
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
1 - Any factory installed options air resistance (heat section, economizer, etc.).
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.FOR ALL UNITS ADD:
Page 21
720
645
570
505
432
---
---
---
---
---
---
---
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
65
60
56
50
44
38
---
---
---
---
---
---
---
---
---
---
---
---
---
---
740
678
620
550
475
407
---
---
---
---
---
---
---
663
731
793
851
919
969
---
---
---
---
---
---
---
105
97
90
83
74
68
1117
1152
---
---
---
---
---
---
---
775
712
---
---
613
674
734
792
855
895
956
651 1016
593 1056
522
468
---
---
193
183
173
163
152
145
135
124
116
104
98
---
---
1095
1034
975
916
852
810
746
681
637
569
529
796
709
617
503
419
323
---
---
---
---
---
---
---
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
75
69
64
57
50
43
---
---
---
---
---
---
---
843
747
662
553
461
372
---
---
---
---
---
---
---
589
671
747
828
909
975
---
---
---
---
---
---
---
117
107
97
88
75
64
1110
1155
---
---
---
---
---
---
---
832
746
668
---
---
592
643
700
747
817
857
924
992
591 1040
512
447
---
---
190
187
181
176
165
159
146
131
118
101
85
---
---
1197
1110
1026
957
871
821
747
676
629
564
524
External
Static
20%
30%
40%
Press.
Cfm
Watts
RPM
Cfm
Watts
RPM
Cfm
Watts
RPM
in. w.g.
HORIZONTAL
785
0
External
Static
20%
30%
40%
Press.
in. w.g. Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM
DOWNFLOW
1411
---
980
1026
1088
1134
1180
1211
1257
1303
1334
1380
---
309
300
286
275
264
256
243
229
220
205
195
---
1131
1093
1039
995
949
917
867
815
779
722
684
634
---
---
781
829
886
933
990
1039
1095
1151
1204
1254
1302
---
---
241
235
226
219
208
198
185
172
156
143
126
---
---
1154
1091
1022
966
900
844
782
722
664
613
560
---
915
970
1015
1073
1118
1162
1221
1266
1310
1368
1398
1448
---
300
291
283
271
262
252
237
225
212
194
185
168
---
1162
1113
1073
1018
974
929
867
818
768
698
662
597
60%
Cfm Watts RPM
80%
90%
100%
---
1139
1184
1230
1275
1320
1351
1396
1434
1468
1509
1539
1571
---
367
357
346
334
321
312
298
286
274
259
248
236
70%
1253
1297
1342
1371
1416
1460
1490
1534
1564
1601
1638
1667
1693
80%
436
425
414
406
393
379
369
353
342
328
313
301
290
1190
1154
1115
1088
1046
1002
971
923
889
846
802
765
732
1355
1404
1448
1490
1533
1575
1604
1647
1676
1708
1744
1772
1799
90%
495
488
480
471
460
447
437
421
410
396
380
366
352
1207
1173
1140
1106
1067
1026
997
952
920
883
840
805
770
1456
1511
1553
1608
1649
1690
1718
1759
1787
1815
1849
1877
1904
100%
554
551
547
537
527
515
505
489
477
464
446
431
414
1225
1192
1165
1123
1088
1050
1024
981
951
920
879
844
809
---
1067
1114
1161
1216
1264
1296
1359
1398
1442
1492
1523
1566
---
362
352
341
327
314
306
287
275
260
243
231
214
---
1171
1130
1087
1035
987
954
888
844
794
734
695
639
1168
1219
1258
1307
1359
1410
1431
1496
1530
1574
1616
1649
1684
437
424
413
399
383
367
360
337
325
308
291
277
260
1223
1180
1147
1101
1051
1000
979
909
870
820
771
729
680
1248
1312
1355
1409
1469
1523
1546
1598
1640
1681
1721
1754
1786
480
473
467
456
442
427
421
403
389
374
358
344
323
1235
1192
1161
1118
1066
1016
995
941
899
853
808
769
720
1329
1405
1452
1510
1579
1636
1662
1701
1749
1787
1826
1858
1888
523
522
520
513
501
487
481
470
454
440
424
411
386
1246
1204
1176
1136
1081
1032
1010
973
927
887
845
810
761
Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM
---
1142
1104
1064
1021
975
944
895
852
813
762
724
683
Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM
70%
Percentage of Total Motor Torque
---
---
1094
1037
985
933
884
839
781
730
680
626
182
50%
---
---
246
234
224
213
204
194
182
172
161
150
1449
Cfm Watts RPM
---
---
820
881
934
986
1033
1076
1130
1175
1218
1264
581
Cfm Watts RPM
140
Cfm Watts RPM
1301
60%
50%
Percentage of Total Motor Torque
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
BLOWER DATA - LCH DIRECT DRIVE - 3 TON - HIGH EFFICIENCY
Page 22
BLOWER DATA - LGH DIRECT DRIVE - 4 TON - HIGH EFFICIENCY
1000
944
906
849
793
---
---
---
---
---
---
---
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
---
790
728
666
624
560
507
---
---
---
---
---
---
121
113
104
97
88
80
---
---
---
---
---
---
---
1047
1093
1139
1177
1218
1261
---
---
---
---
---
---
---
188
177
166
156
146
135
---
---
---
---
---
---
---
837
783
728
683
633
582
1025
978
927
851
801
725
---
---
---
---
---
---
---
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
118
105
98
89
85
80
---
---
---
---
---
---
---
817
738
684
602
546
472
---
---
---
---
---
---
---
991
1051
1098
1157
1199
1238
---
---
---
---
---
---
---
179
166
156
145
138
131
---
---
---
---
---
---
---
850
785
731
661
610
552
External
Static
20%
30%
Press.
in. w.g. Cfm Watts RPM Cfm Watts RPM
HORIZONTAL
1048
0
External
Static
20%
30%
Press.
in. w.g. Cfm Watts RPM Cfm Watts RPM
DOWNFLOW
---
---
414
401
388
375
361
346
333
320
304
289
---
---
1007
1062
1114
1169
1212
1256
1300
1344
1387
1420
1450
---
---
304
290
277
263
251
239
227
214
201
191
182
---
---
1127
1077
1027
975
931
883
832
777
720
675
632
---
---
1240
1283
1331
1380
1417
1455
1493
1531
1568
1601
1626
---
---
392
380
366
350
337
324
309
295
279
265
254
Cfm
---
1490
1533
1572
1608
1639
1671
1702
1726
1750
1781
1812
1836
---
524
511
498
485
470
454
438
425
412
393
374
359
---
1200
1167
1134
1101
1065
1027
987
957
925
881
836
801
Watts RPM
60%
---
---
1147
1106
1059
1010
969
926
881
833
783
738
702
---
1429
1473
1504
1547
1590
1621
1653
1685
1717
1749
1781
1802
Cfm
---
497
481
470
454
437
423
408
392
375
357
339
326
---
1211
1166
1135
1091
1045
1008
970
930
888
845
801
771
Watts RPM
60%
70%
---
1654
1702
1741
1778
1807
1836
1864
1889
1915
1940
1965
---
1228
1198
1168
1135
1104
1071
1036
1004
970
934
896
863
---
1569
1627
1669
1717
1756
1784
1814
1847
1876
1906
1930
1936
---
590
584
575
560
544
531
516
496
478
458
441
414
---
1240
1202
1170
1126
1086
1053
1019
977
938
897
862
824
Cfm Watts RPM
70%
---
618
612
603
591
578
564
548
532
515
497
479
461
Cfm Watts RPM
1987
Percentage of Total Motor Torque
---
---
1136
1097
1057
1019
978
935
897
858
812
771
Cfm Watts RPM
---
---
1333
1367
1402
1433
1467
1501
1531
1561
1595
1624
729
Cfm Watts RPM
---
---
1104
1060
1012
974
929
883
837
790
743
706
274
50%
---
---
316
304
291
280
267
254
241
228
214
204
1655
40%
---
---
1133
1162
1195
1226
1263
1300
1336
1372
1409
1436
657
Cfm Watts RPM
190
Cfm Watts RPM
1473
50%
40%
Percentage of Total Motor Torque
NOTE - Default Speed Settings (percentage of blower torque) - Low 40% / High 80%
See page 45 for wet coil and options/accessory air resistance data.
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
1 - Any factory installed options air resistance (heat section, economizer, etc.).
80%
701
713
714
708
697
686
673
657
639
619
602
583
563
1272
1256
1229
1202
1169
1144
1116
1085
1051
1015
986
956
924
1604
1709
1780
1833
1886
1921
1947
1974
2009
2035
2062
2079
2071
651
683
687
680
666
651
638
623
600
581
559
544
502
1284
1269
1238
1204
1161
1127
1098
1068
1023
988
949
923
878
Cfm Watts RPM
1765
1817
1870
1909
1948
1974
2000
2026
2052
2079
2098
2118
2137
Cfm Watts RPM
80%
90%
771
786
791
792
787
782
775
766
754
741
729
716
698
1293
1273
1251
1223
1195
1173
1145
1120
1090
1058
1032
1004
975
1684
1787
1853
1919
1976
2014
2057
2091
2128
2166
2205
2222
2231
714
741
748
749
743
736
729
720
707
694
679
663
634
1303
1280
1253
1220
1184
1157
1126
1099
1064
1030
993
968
931
Cfm Watts RPM
1844
1909
1959
2009
2052
2080
2116
2145
2177
2210
2235
2261
2291
Cfm Watts RPM
90%
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.FOR ALL UNITS ADD:
100%
840
859
868
875
878
878
876
874
869
863
856
849
832
1314
1289
1272
1244
1220
1203
1175
1155
1129
1100
1077
1052
1025
1763
1864
1925
2005
2066
2106
2166
2207
2247
2297
2348
2365
2391
777
799
809
817
821
821
820
817
813
807
798
783
767
1321
1291
1269
1236
1207
1187
1154
1130
1105
1072
1038
1013
983
Cfm Watts RPM
1923
2000
2047
2109
2155
2186
2232
2263
2302
2341
2372
2403
2445
Cfm Watts RPM
100%
Page 23
992
926
883
818
752
---
---
---
---
---
---
---
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
121
111
101
95
85
77
---
---
---
---
---
---
---
791
724
657
612
543
485
---
---
---
---
---
---
---
1022
1074
1125
1166
1211
1257
---
---
---
---
---
---
---
187
175
164
154
145
134
---
---
---
---
---
---
---
828
772
715
669
619
565
---
---
1081
1126
1164
1202
1253
1291
1329
1367
1405
1430
1468
---
---
320
306
294
282
265
253
240
227
214
205
191
---
---
1092
1046
1006
965
908
865
820
774
727
695
646
1023
970
909
829
772
688
---
---
---
---
---
---
---
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
118
104
95
86
82
78
---
---
---
---
---
---
---
818
734
675
590
529
452
---
---
---
---
---
---
---
967
1032
1084
1146
1192
1234
---
---
---
---
---
---
---
178
165
154
144
137
131
---
---
---
---
---
---
---
841
774
718
647
596
536
---
---
961
1029
1085
1146
1202
1247
1293
1339
1383
1414
1445
---
---
308
292
280
265
249
238
226
213
201
192
183
---
---
1114
1064
1021
967
910
864
814
761
705
664
621
External
Static
20%
30%
40%
Press.
Cfm
Watts
RPM
Cfm
Watts
RPM
Cfm
Watts
RPM
in. w.g.
HORIZONTAL
1046
0
External
Static
20%
30%
40%
Press.
in. w.g. Cfm Watts RPM Cfm Watts RPM Cfm Watts RPM
DOWNFLOW
---
1476
1515
1548
1580
1613
1646
1679
1701
1734
1755
1788
---
514
500
487
473
458
442
425
414
396
384
365
---
1174
1138
1105
1070
1034
996
957
930
888
859
814
784
---
---
1207
1255
1302
1355
1400
1439
1477
1520
1553
1586
1611
---
---
389
376
362
345
330
317
304
287
275
261
251
---
---
1126
1085
1040
990
944
902
859
807
764
722
688
---
1416
1456
1481
1520
1565
1597
1631
1661
1701
1723
1757
1776
---
488
471
460
443
426
411
396
382
361
349
330
319
---
1185
1137
1106
1060
1014
978
940
904
853
824
780
754
60%
Cfm Watts RPM
70%
---
1632
1675
1714
1745
1777
1809
1837
1859
1891
1909
1937
---
1201
1169
1135
1104
1071
1036
1003
975
934
909
870
837
---
1549
1601
1643
1685
1727
1758
1787
1818
1853
1876
1902
1910
---
581
571
560
544
527
512
498
480
459
444
427
400
---
1213
1173
1137
1095
1053
1018
986
949
903
873
837
800
Cfm Watts RPM
70%
---
609
599
587
574
560
544
529
515
495
482
463
445
Cfm Watts RPM
1960
Percentage of Total Motor Torque
---
---
1115
1075
1038
999
952
911
875
831
793
755
351
50%
---
---
410
396
383
370
354
339
327
311
299
285
1810
Cfm Watts RPM
---
---
1298
1337
1372
1408
1450
1485
1515
1551
1580
1609
715
Cfm Watts RPM
271
Cfm Watts RPM
1639
60%
50%
Percentage of Total Motor Torque
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
80%
80%
702
704
699
687
676
662
646
632
617
593
581
561
539
1256
1229
1200
1165
1138
1109
1076
1049
1021
980
959
925
890
1570
1682
1746
1805
1849
1889
1920
1943
1975
2005
2028
2048
2043
652
675
672
660
646
629
613
599
579
557
540
523
480
1268
1241
1209
1167
1130
1092
1059
1032
993
953
923
893
846
Cfm Watts RPM
1728
1788
1834
1880
1910
1941
1972
1994
2017
2048
2063
2086
2109
Cfm Watts RPM
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
BLOWER DATA - LCH DIRECT DRIVE - 4 TON - HIGH EFFICIENCY
90%
790
795
794
788
781
771
760
749
737
719
708
691
674
1277
1251
1227
1198
1171
1141
1114
1090
1064
1028
1008
977
947
1675
1774
1836
1898
1950
1997
2035
2066
2098
2138
2170
2189
2192
732
750
751
745
737
726
715
704
690
673
659
640
613
1286
1258
1230
1194
1160
1125
1095
1069
1039
1001
970
942
904
Cfm Watts RPM
1835
1896
1941
1987
2025
2063
2094
2120
2147
2181
2200
2227
2251
Cfm Watts RPM
90%
100%
878
886
889
889
886
879
873
866
857
844
835
822
810
1298
1274
1254
1230
1204
1174
1153
1131
1107
1076
1056
1029
1004
1780
1867
1926
1991
2051
2105
2150
2189
2222
2271
2312
2330
2340
812
824
829
830
828
822
817
809
802
789
779
758
746
1305
1276
1251
1222
1191
1158
1132
1106
1084
1049
1018
991
963
Cfm Watts RPM
1942
2003
2048
2094
2139
2185
2215
2245
2276
2314
2336
2367
2393
Cfm Watts RPM
100%
Page 24
BLOWER DATA - LGH DIRECT DRIVE - 5 TON - HIGH EFFICIENCY
---
---
---
1.0
1.1
1.2
---
1127
1071
1010
930
869
813
---
---
---
---
---
---
---
0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
119
109
100
91
86
82
---
---
---
---
---
---
---
689
646
597
529
476
426
---
---
---
---
---
---
---
1114
1156
1214
1268
1326
---
---
---
---
---
---
---
193
184
169
160
148
141
---
---
---
---
---
---
---
734
699
647
598
543
504
1367
---
---
---
---
---
---
---
754
705
659
614
568
524
Cfm Watts RPM
---
---
---
---
---
---
---
198
185
175
165
155
146
Cfm Watts RPM
---
---
---
---
---
---
---
---
1094
1151
1202
1253
1305
30%
---
---
---
---
---
---
718
662
606
550
---
---
---
---
---
---
121
111
102
94
494
438
20%
0.1
External
Static
Press.
in. w.g.
HORIZONTAL
---
0.9
---
0.6
---
779
0.5
---
849
0.4
0.7
920
0.3
0.8
990
0.2
86
79
1353
1132
1061
Cfm Watts RPM
Cfm Watts RPM
0
30%
20%
0.1
External
Static
Press.
in. w.g.
DOWNFLOW
40%
---
---
354
337
321
303
289
275
260
248
236
223
212
---
---
---
---
1192
1233
1275
1330
1358
1414
1442
1497
1525
1580
1607
---
---
343
329
315
296
286
267
258
239
229
210
200
---
---
982
946
908
857
831
778
751
696
668
610
582
50%
1462
1504
1552
1589
1626
1658
1687
1716
1743
1765
50%
---
---
---
---
1441
1483
1518
1560
1595
1637
1665
1707
1735
1781
1806
---
---
455
439
426
409
394
376
364
345
332
311
296
---
1629
1672
1714
1746
1778
1810
1842
1863
1890
1916
1937
1954
60%
---
566
553
538
524
509
492
473
460
442
423
407
388
---
1073
1045
1012
984
954
921
886
861
828
793
764
730
Watts RPM
---
---
1012
975
942
903
868
827
798
755
724
675
644
---
1662
1690
1732
1761
1789
1832
1860
1888
1917
1945
1981
2005
Cfm
---
578
567
549
536
523
501
485
469
452
434
411
391
---
1068
1043
1004
977
949
905
876
845
814
781
740
706
Watts RPM
60%
70%
---
1828
1871
1902
1934
1966
1993
2020
2041
2065
2088
2110
2126
---
1109
1078
1053
1024
993
966
936
911
882
851
823
796
---
1854
1881
1922
1950
1977
2012
2039
2066
2093
2117
2145
2167
---
706
692
670
655
638
616
597
577
556
537
516
495
---
1097
1074
1037
1011
985
949
920
889
857
828
795
764
Cfm Watts RPM
70%
---
698
682
669
653
635
619
601
586
568
549
531
513
Cfm Watts RPM
Percentage of Total Motor Torque
---
---
1029
988
952
911
876
838
804
770
735
702
670
Cfm Watts RPM
---
---
454
437
423
406
390
374
360
345
330
315
300
Cfm
Percentage of Total Motor Torque
Cfm Watts RPM
1013 1412
964
920
868
830
790
747
713
678
641
610
Cfm Watts RPM
---
---
1151
1211
1261
1325
1368
1410
1452
1484
1516
1548
1575
Cfm Watts RPM
40%
NOTE - Default Speed Settings (percentage of blower torque) - Low 36% / High 59%
See page 45 for wet coil and options/accessory air resistance data.
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
1 - Any factory installed options air resistance (heat section, economizer, etc.).
80%
844
830
811
801
782
761
746
730
713
694
675
654
638
1175
1146
1112
1094
1064
1033
1010
987
962
937
910
883
861
1994
2046
2072
2112
2138
2164
2191
2217
2243
2269
2289
2309
2328
861
833
818
792
773
753
731
709
685
660
640
620
599
1163
1126
1105
1071
1046
1020
993
963
933
900
875
849
822
Cfm Watts RPM
1984
2027
2069
2090
2122
2154
2176
2197
2218
2239
2260
2282
2298
Cfm Watts RPM
80%
984
2137
1202
1177
1149
1127
1100
1075
1054
1028
1006
983
959
935
913
2165
2206
2237
2272
2296
2324
2349
2373
2393
2417
2438
2456
2463
993
975
960
939
923
902
882
861
842
817
795
775
749
1185
1157
1133
1104
1081
1054
1028
1002
978
948
921
898
872
Cfm Watts RPM
90%
971
955
942
925
908
895
876
861
844
827
808
792
2174
2211
2237
2268
2295
2316
2342
2363
2384
2405
2426
2445
Cfm Watts RPM
90%
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.FOR ALL UNITS ADD:
100%
100%
1124
1112
1099
1084
1067
1055
1043
1023
1009
994
979
963
946
1230
1208
1185
1161
1135
1117
1099
1070
1050
1030
1009
987
965
2336
2365
2402
2432
2454
2484
2506
2528
2543
2565
2587
2602
2598
1125
1117
1102
1087
1073
1052
1033
1013
998
975
949
931
899
1206
1188
1161
1136
1116
1088
1064
1040
1022
995
967
947
922
Cfm Watts RPM
2290
2321
2352
2383
2414
2435
2456
2487
2508
2528
2549
2570
2591
Cfm Watts RPM
Page 25
784
---
---
---
---
---
---
---
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
124
114
104
94
85
76
---
---
---
---
---
---
---
708
657
603
546
484
420
1129
1063
984
917
862
818
---
---
---
---
---
---
---
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
---
---
---
---
---
---
---
124
112
103
95
88
85
---
---
---
---
---
---
---
760
681
606
534
464
418
External
Static
20%
Press.
Cfm
Watts
RPM
in. w.g.
HORIZONTAL
911
847
975
0.2
0.4
1038
0.1
0.3
1102
0
External
Static
20%
Press.
in. w.g. Cfm Watts RPM
DOWNFLOW
---
---
343
327
313
297
285
273
259
245
236
221
---
---
980
937
899
856
822
785
747
706
677
633
---
---
---
---
---
---
---
1091
1128
1178
1234
1295
1343
---
---
---
---
---
---
---
204
192
179
166
154
146
---
---
---
---
---
---
---
779
725
665
607
550
512
---
---
1155
1200
1245
1274
1319
1364
1393
1438
1483
1527
1556
---
---
360
344
328
317
300
283
272
255
237
220
208
---
---
1000
957
914
885
842
798
768
724
680
635
606
40%
---
---
1193
1249
1294
1339
1372
1406
1439
1473
1495
1529
601
Cfm Watts RPM
---
---
---
---
---
---
---
747
702
654
611
559
211
30%
---
---
---
---
---
---
---
198
187
175
165
153
1545
Cfm Watts RPM
---
---
---
---
---
---
---
1095
1143
1192
1235
1284
510
Cfm Watts RPM
143
Cfm Watts RPM
1324
40%
30%
50%
---
---
446
432
416
401
388
374
359
343
332
315
302
---
---
1382
1424
1466
1499
1541
1576
1604
1645
1681
1715
1740
---
---
461
446
429
415
398
383
370
351
335
318
306
---
1649
1680
1706
1741
1767
1793
1819
1845
1871
1888
1914
---
562
549
537
519
505
490
475
458
441
429
410
393
---
1066
1036
1010
973
944
915
884
852
820
798
763
734
Cfm Watts RPM
1934
---
---
1030
995
957
926
886
851
823
780
743
705
679
60%
---
1570
1609
1647
1686
1724
1762
1788
1814
1852
1878
1903
1923
---
577
563
547
531
513
495
482
468
447
432
417
405
---
1087
1061
1032
1001
967
931
905
878
836
807
776
752
Cfm Watts RPM
70%
---
1834
1867
1891
1920
1945
1969
1994
2015
2040
2057
2078
---
1097
1067
1043
1013
987
959
931
904
874
851
823
797
---
1753
1796
1830
1865
1900
1934
1963
1987
2018
2046
2070
2084
---
712
695
679
663
646
628
612
598
580
562
546
530
---
1124
1095
1069
1040
1010
979
951
927
894
863
835
812
Cfm Watts RPM
70%
---
691
676
663
647
633
617
600
585
566
553
535
519
Cfm Watts RPM
2096
Percentage of Total Motor Torque
---
---
1008
974
936
900
868
835
800
763
737
698
667
Cfm Watts RPM
---
---
1437
1478
1518
1553
1583
1613
1642
1672
1692
1722
1740
60%
Percentage of Total Motor Torque
Cfm Watts RPM
50%
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
80%
80%
836
821
803
790
776
760
743
726
712
692
677
660
645
1157
1129
1098
1077
1054
1029
1004
977
956
928
905
882
860
1905
1936
1983
2013
2044
2075
2106
2137
2160
2183
2214
2237
2245
859
847
826
812
796
779
761
742
728
712
691
675
655
1182
1162
1129
1105
1080
1054
1026
997
975
952
920
895
872
Cfm Watts RPM
1984
2019
2053
2076
2099
2122
2145
2168
2185
2208
2225
2242
2258
Cfm Watts RPM
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
BLOWER DATA - LCH DIRECT DRIVE - 5 TON - HIGH EFFICIENCY
90%
971
961
945
934
920
906
890
874
858
839
825
810
791
1184
1162
1132
1113
1090
1068
1046
1022
1000
974
954
934
910
2041
2086
2124
2154
2188
2219
2244
2274
2298
2321
2347
2368
2377
1003
994
980
968
951
934
919
898
881
862
842
823
807
1213
1189
1164
1143
1117
1093
1071
1044
1021
997
971
948
927
Cfm Watts RPM
2133
2164
2200
2221
2246
2267
2288
2309
2327
2348
2363
2378
2396
Cfm Watts RPM
90%
100%
1106
1100
1087
1078
1064
1051
1037
1022
1005
987
973
960
938
1211
1194
1166
1150
1127
1108
1087
1066
1044
1020
1003
986
959
2176
2235
2264
2294
2332
2362
2381
2410
2435
2459
2479
2498
2508
1146
1141
1134
1124
1106
1089
1076
1055
1034
1012
993
972
959
1244
1216
1200
1181
1154
1131
1115
1090
1067
1043
1023
1002
982
Cfm Watts RPM
2282
2308
2347
2366
2392
2411
2431
2450
2469
2488
2501
2514
2534
Cfm Watts RPM
100%
BLOWER DATA - LGH BELT DRIVE - 3 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
External Static (in.w.g.)
Air
Volume
(cfm)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
700
453 0.07 523 0.11 596 0.14 679 0.17 762 0.18 828 0.21 878 0.24 927 0.26 979 0.29 1029 0.31
800
471 0.09 542 0.13 614 0.16 696 0.19 777 0.21 841 0.23 889 0.26 938 0.29 990 0.31 1042 0.34
900
493 0.11 563 0.15 634 0.19 715 0.21 793 0.23 854 0.26 902 0.29 950 0.32 1002 0.34 1054 0.36
1000
517 0.14 587 0.18 657 0.21 736 0.24 811 0.26 869 0.29 916 0.32 964 0.35 1015 0.37 1067 0.4
1100
544 0.17 613 0.21 683 0.24 759 0.27 831
1200
574
1300
608 0.24 676 0.28 743 0.31 812 0.34 875 0.37 923
1400
645 0.28 711 0.31 776 0.35 842 0.38 898 0.41 942 0.44 983 0.48 1028 0.51 1074 0.53 1120 0.56
0.2
643 0.24 711 0.27 784
0.3
0.3
886 0.32 931 0.36 978 0.38 1028 0.41 1078 0.43
852 0.33 904 0.36 947 0.39 993 0.42 1042 0.45 1091 0.47
0.4
964 0.44 1010 0.46 1057 0.49 1104 0.51
External Static (in.w.g.)
Air
Volume
(cfm)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
700
1078 0.33 1124 0.36
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
800
1091 0.36 1137 0.39 1180 0.41 1221 0.44 1260 0.47
---
---
---
---
---
---
---
---
---
---
900
1105 0.39 1150 0.42 1192 0.45 1232 0.47 1270 0.5 1307 0.53 1345 0.56 1382 0.59 1420 0.62
---
---
1000
1117 0.42 1162 0.45 1203 0.48 1242 0.51 1279 0.54 1316 0.57 1353 0.6 1390 0.63 1427 0.66 1465 0.7
1100
1126 0.46 1171 0.49 1212 0.52 1251 0.56 1288 0.59 1325 0.62 1361 0.65 1397 0.68 1433 0.71 1470 0.75
1200
1137 0.5 1180 0.54 1222 0.57 1260 0.6 1298 0.64 1334 0.67 1369 0.7 1404 0.73 1440 0.77 1477 0.8
1300
1149 0.55 1191 0.58 1232 0.62 1270 0.65 1307 0.69 1343 0.72 1378 0.76 1413 0.79 1449 0.82 1486 0.86
1400
1163 0.6 1204 0.63 1243 0.67 1281 0.71 1317 0.74 1353 0.78 1388 0.82 1423 0.85 1459 0.89 1496 0.92
Page 26
BLOWER DATA - LGH BELT DRIVE - 3 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
HORIZONTAL
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
700
440 0.07 510
800
456 0.08 526 0.11 600 0.14 672 0.16 739 0.19 804 0.22 866 0.25 923 0.28 975 0.31 1025 0.34
900
474
1000
495 0.12 565 0.15 637 0.18 707 0.21 771 0.23 832 0.27 889
1100
518 0.14 588 0.18 659 0.21 727 0.23 789 0.26 848
1200
544 0.17 613 0.21 682 0.24 748 0.27 809 0.29 866 0.33 918 0.37 967
1300
572 0.21 640 0.24 707 0.27 771
1400
602 0.24 669 0.28 733 0.31 795 0.34 851 0.37 903 0.41 950 0.45 995 0.49 1040 0.52 1086 0.55
0.1
0.1
585 0.12 657 0.14 726 0.17 793
0.2
856 0.23 915 0.25 967 0.28 1016 0.31
544 0.13 617 0.16 688 0.18 754 0.21 818 0.24 877 0.27 932
0.3
0.3
0.3
0.3
984 0.33 1034 0.36
943 0.33 993 0.36 1043 0.39
903 0.33 954 0.37 1003 0.4 1052 0.43
0.4 1014 0.43 1062 0.46
830 0.33 884 0.37 934 0.41 981 0.44 1027 0.47 1073 0.5
External Static (in.w.g.)
Air
Volume
(cfm)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
700
1065 0.33
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
800
1075 0.36 1122 0.39 1164 0.42 1203 0.45 1241 0.47
---
---
---
---
---
---
---
---
---
---
900
1086 0.39 1133 0.42 1174 0.45 1213 0.48 1250 0.51 1286 0.54 1322 0.57 1357 0.6 1392 0.64
---
---
1000
1094 0.43 1142 0.46 1183 0.49 1222 0.52 1259 0.55 1295 0.58 1330 0.62 1365 0.65 1400 0.68 1435 0.71
1100
1102 0.46 1148 0.49 1191 0.53 1230 0.56 1267 0.6 1303 0.63 1338 0.66 1373 0.69 1408 0.73 1444 0.76
1200
1110
1300
1120 0.54 1164 0.58 1207 0.62 1246 0.65 1283 0.69 1319 0.73 1354 0.76 1389 0.79 1424 0.83 1460 0.86
1400
1131 0.59 1175 0.63 1216 0.67 1255 0.7 1292 0.74 1327 0.78 1362 0.81 1397 0.84 1432 0.88 1468 0.91
0.5 1156 0.53 1198 0.57 1238 0.61 1275 0.64 1311 0.68 1346 0.71 1381 0.74 1416 0.78 1452 0.81
Page 27
BLOWER DATA - LCH BELT DRIVE - 3 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
External Static (in.w.g.)
Air
Volume
(cfm)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
700
447 0.09 517 0.12 589 0.15 663 0.17 739 0.19 815
800
465
900
486 0.12 554 0.16 623
1000
508 0.15 576 0.19 643 0.22 713 0.24 783 0.26 848 0.28 907
1100
533 0.18 599 0.22 665 0.25 733 0.27 800 0.28 863 0.31 919 0.34 971 0.36 1020 0.39 1070 0.41
1200
560 0.21 625 0.25 689 0.28 755
1300
591 0.24 654 0.28 716 0.31 779 0.33 841 0.35 897 0.38 948 0.41 996 0.44 1044 0.47 1091 0.49
1400
631 0.26 690
0.1
0.2
883 0.23 938 0.25 988 0.27 1039 0.29
534 0.14 605 0.17 678 0.19 753 0.21 825 0.23 890 0.25 946 0.27 996
0.3
0.2
695 0.22 767 0.23 836 0.25 897 0.28 953
0.3
0.3
0.3 1047 0.32
0.3 1004 0.33 1055 0.35
961 0.33 1011 0.36 1062 0.38
820 0.32 879 0.34 932 0.37 983
0.4 1031 0.43 1079 0.45
748 0.34 807 0.36 864 0.39 916 0.42 964 0.46 1011 0.49 1058 0.51 1105 0.54
External Static (in.w.g.)
Air
Volume
(cfm)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
700
1088 0.31
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
800
1098 0.34 1144 0.36 1185 0.39 1224 0.42
---
---
---
---
---
---
---
---
---
---
---
---
900
1106 0.37 1152
1193 0.43 1232 0.46 1269 0.49 1305 0.52 1340 0.55 1376 0.59
---
---
---
---
1000
1111 0.41 1157 0.43 1199 0.47 1238 0.5 1276 0.53 1311 0.56 1347 0.6 1382 0.63 1417 0.67 1452 0.7
1100
1118 0.44 1163 0.47 1206 0.51 1245 0.54 1282 0.58 1318 0.61 1353 0.65 1388 0.68 1423 0.72 1458 0.75
1200
1127 0.48 1171 0.52 1213 0.55 1252 0.59 1289 0.62 1324 0.66 1358 0.7 1393 0.73 1428 0.77 1463 0.81
1300
1137 0.53 1181 0.56 1221 0.6 1259 0.64 1296 0.68 1330 0.71 1364 0.75 1398 0.78 1432 0.82 1467 0.86
1400
1150 0.57 1191 0.61 1231 0.65 1268 0.69 1303 0.73 1337 0.77 1371 0.8 1404 0.84 1437 0.88 1473 0.91
0.4
---
---
---
Page 28
BLOWER DATA - LCH BELT DRIVE - 3 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
HORIZONTAL
External Static (in.w.g.)
Air
Volume
(cfm)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
700
445 0.08 516 0.11 591 0.13 670 0.15 753 0.16 820 0.19 870 0.22 918 0.24 969 0.27 1021 0.29
800
463 0.09 534 0.12 608 0.14 685 0.16 766 0.18 830 0.21 878 0.24 926 0.27 977 0.29 1030 0.32
900
485 0.11 554 0.14 627 0.16 703 0.18 780 0.21 841 0.23 888 0.27 935
1000
509 0.13 578 0.16 649 0.19 722 0.21 796 0.23 854 0.26 900 0.29 947 0.33 997 0.35 1048 0.38
1100
537 0.16 605 0.19 674 0.21 744 0.24 813 0.26 868 0.29 913 0.33 959 0.36 1008 0.39 1059 0.41
1200
567 0.19 633 0.22 700 0.24 768 0.27 833
1300
599 0.22 664 0.25 729 0.28 793
1400
634 0.26 697 0.29 758 0.31 819 0.34 875 0.38 921 0.42 964 0.46 1008 0.49 1054 0.52 1100 0.54
0.3
0.3
884 0.33 928 0.37 974
0.3
986 0.32 1039 0.35
0.4 1022 0.43 1071 0.45
853 0.33 902 0.37 945 0.41 990 0.44 1037 0.47 1085 0.5
External Static (in.w.g.)
Air
Volume
(cfm)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
700
1071 0.32
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
800
1082 0.34 1128 0.37 1169 0.4 1205 0.42
---
---
---
---
---
---
---
---
---
---
---
---
900
1090 0.37 1137 0.4 1177 0.43 1214 0.46 1248 0.49 1280 0.51 1310 0.54 1340 0.57
---
---
---
---
1000
1098 0.41 1143 0.44 1184 0.47 1221 0.5 1255 0.53 1287 0.56 1318 0.59 1347 0.61 1377 0.64 1406 0.67
1100
1107 0.44 1150 0.47 1191 0.51 1228 0.54 1263 0.57 1295 0.6 1325 0.63 1355 0.66 1384 0.69 1413 0.72
1200
1117 0.48 1160 0.52 1200 0.55 1237 0.59 1271 0.62 1303 0.66 1334 0.69 1363 0.72 1392 0.75 1420 0.78
1300
1130 0.53 1171 0.57 1210 0.6 1246 0.64 1280 0.68 1312 0.71 1342 0.74 1372 0.78 1400 0.81 1429 0.84
1400
1144 0.58 1183 0.62 1221 0.66 1256 0.7 1290 0.73 1321 0.77 1352 0.8 1381 0.84 1410 0.87 1439 0.9
Page 29
BLOWER DATA - LGH BELT DRIVE - 4 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900
502 0.12 573 0.15 644 0.19 725 0.22 802 0.24 861 0.26 908 0.29 957 0.32 1009 0.34 1061 0.37
1000
528 0.14 598 0.18 668 0.22 747 0.24 821 0.27 877
1100
557 0.17 626 0.21 695 0.25 772 0.28 841
1200
589 0.21 657 0.25 725 0.28 798 0.31 864 0.33 913 0.37 956
1300
625 0.25 692 0.28 759 0.32 827 0.34 887 0.37 933 0.41 975 0.44 1021 0.47 1068 0.49 1115 0.52
1400
665 0.29 730 0.32 794 0.35 857 0.38 911 0.42 953 0.45 995 0.49 1040 0.52 1086 0.54 1131 0.57
1500
706 0.33 768 0.36 829 0.39 886 0.43 934 0.46 974
1600
746 0.37 805
1700
784 0.42 840 0.45 893 0.49 940 0.53 980 0.57 1019 0.61 1060 0.64 1104 0.67 1147 0.7 1187 0.74
1800
821 0.47 874 0.51 923 0.55 967 0.59 1006 0.63 1044 0.67 1085 0.7 1128 0.73 1170 0.77 1208 0.82
1900
857 0.53 906 0.57 952 0.62 994 0.66 1032 0.7 1071 0.73 1112 0.76 1154 0.8 1194 0.85 1230 0.9
Air
Volume
(cfm)
0.4
0.3
0.3
923 0.33 971 0.35 1022 0.38 1074 0.4
894 0.33 939 0.36 986 0.39 1037 0.41 1087 0.44
0.4 1003 0.43 1052 0.45 1100 0.48
0.5 1015 0.54 1060 0.56 1105 0.59 1149 0.62
862 0.44 914 0.48 957 0.52 996 0.55 1037 0.59 1081 0.62 1126 0.64 1167 0.68
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900
1111 0.39 1156 0.42 1197 0.45 1236 0.48 1275 0.51 1312 0.54 1349 0.56 1387 0.59 1424 0.62
1000
1124 0.43 1168 0.46 1209 0.49 1247 0.52 1285 0.55 1322 0.58 1358 0.61 1395 0.64 1432 0.67 1470 0.7
1100
1134 0.47 1178 0.5 1219 0.53 1258 0.56 1295 0.6 1331 0.63 1367 0.66 1403 0.69 1439 0.72 1477 0.75
1200
1146 0.51 1189 0.54 1230 0.58 1268 0.61 1305 0.65 1341 0.68 1376 0.71 1411 0.74 1447 0.77 1485 0.81
1300
1159 0.55 1201 0.59 1241 0.63 1279 0.66 1315 0.7 1351 0.73 1386 0.77 1421 0.8 1457 0.83 1495 0.87
1400
1173 0.61 1214 0.64 1253 0.68 1290 0.72 1327 0.75 1362 0.79 1397 0.82 1432 0.86 1468 0.89 1506 0.93
1500
1189 0.66 1228 0.7 1266 0.74 1303 0.78 1339 0.81 1374 0.85 1409 0.89 1445 0.92 1481 0.96 1519
1600
1206 0.72 1244 0.76 1281 0.8 1317 0.84 1353 0.88 1388 0.92 1423 0.96 1459
1700
1224 0.79 1261 0.83 1298 0.87 1334 0.91 1369 0.95 1404 0.99 1440 1.03 1476 1.07 1513 1.12 1552 1.16
1800
1244 0.86 1280 0.91 1316 0.95 1352 0.99 1387 1.03 1422 1.07 1457 1.11 1494 1.16 1532 1.2 1570 1.24
1900
1265 0.95 1301
1
1
---
---
1
1496 1.04 1535 1.08
1336 1.04 1371 1.08 1406 1.12 1441 1.16 1477 1.2 1515 1.24 1553 1.29 1592 1.33
Page 30
BLOWER DATA - LGH BELT DRIVE - 4 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
HORIZONTAL
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900
483
1000
505 0.12 576 0.16 648 0.19 719 0.21 784 0.24 842 0.27 896
1100
530 0.15 601 0.18 671 0.21 741 0.24 804 0.27 860
1200
558 0.18 627 0.22 696 0.25 764 0.28 824
1300
588 0.22 656 0.25 723 0.28 788 0.31 846 0.34 897 0.38 945 0.42 990 0.45 1037 0.48 1084 0.51
1400
621 0.25 687 0.29 752 0.32 814 0.35 868 0.38 916 0.42 962 0.46 1006 0.5 1052 0.53 1098 0.56
1500
655 0.29 719 0.33 781 0.36 839 0.39 890 0.43 936 0.47 979 0.51 1023 0.55 1068 0.58 1113 0.61
1600
690 0.33 751 0.37 810
1700
725 0.38 784 0.41 839 0.45 891 0.49 935 0.53 975 0.58 1017 0.62 1060 0.65 1104 0.68 1147 0.72
1800
761 0.42 816 0.46 868
1900
795 0.48 848 0.52 897 0.56 942 0.61 981 0.66 1020 0.7 1060 0.74 1103 0.77 1145 0.81 1183 0.85
Air
Volume
(cfm)
0.1
554 0.13 627 0.16 699 0.19 765 0.22 826 0.24 882 0.27 935
0.4
0.5
0.3
0.3
0.3
0.3
986 0.33 1039 0.36
947 0.33 998 0.37 1050 0.4
912 0.34 961 0.37 1010 0.4 1060 0.43
878 0.34 928 0.37 975 0.41 1023 0.44 1072 0.47
865 0.44 912 0.48 955 0.52 997 0.56 1041 0.6 1086 0.63 1129 0.66
916 0.55 957 0.59 997 0.64 1038 0.68 1081 0.71 1124 0.74 1165 0.79
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900
1091 0.4 1138 0.43 1180 0.46 1220 0.49 1257 0.53 1293 0.56 1329 0.59 1364 0.62 1400 0.65 1435 0.69
1000
1101 0.43 1149 0.46 1190 0.5 1229 0.53 1266 0.57 1302 0.6 1338 0.63 1373 0.66 1408 0.7 1444 0.73
1100
1110 0.46 1156 0.5 1199 0.54 1238 0.57 1275 0.61 1311 0.64 1346 0.67 1381 0.71 1416 0.74 1452 0.78
1200
1119
1300
1130 0.55 1175 0.59 1216 0.63 1255 0.66 1292 0.7 1328 0.74 1363 0.77 1398 0.8 1433 0.84 1469 0.87
1400
1143 0.6 1186 0.63 1226 0.67 1265 0.71 1302 0.75 1337 0.79 1372 0.82 1406 0.85 1441 0.89 1477 0.93
1500
1156 0.65 1198 0.69 1237 0.73 1275 0.77 1311 0.8 1346 0.84 1381 0.88 1415 0.91 1450 0.95 1486 0.98
1600
1171 0.7 1211 0.74 1249 0.78 1286 0.82 1321 0.86 1356 0.9 1390 0.93 1425 0.97 1460 1.01 1496 1.05
1700
1186 0.76 1225 0.8 1262 0.84 1298 0.88 1333 0.92 1367 0.96 1401
1800
1202 0.83 1240 0.87 1276 0.91 1311 0.95 1345 0.99 1380 1.03 1413 1.07 1448 1.11 1483 1.15 1520 1.19
1900
1220 0.9 1256 0.94 1291 0.99 1326 1.03 1360 1.07 1393 1.1 1427 1.14 1462 1.18 1497 1.22 1534 1.27
0.5 1165 0.54 1207 0.58 1247 0.62 1284 0.65 1319 0.69 1355 0.72 1389 0.75 1425 0.79 1460 0.82
Page 31
1
1436 1.03 1471 1.07 1507 1.12
BLOWER DATA - LCH BELT DRIVE - 4 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900
496 0.13 568 0.16 640 0.18 711
1000
521 0.15 592 0.18 662
1100
548 0.18 618 0.21 686 0.23 752 0.25 814 0.28 873 0.31 929 0.34 980 0.37 1029 0.39 1078 0.42
1200
577 0.21 646 0.24 712 0.26 775 0.29 834 0.31 890 0.35 943 0.38 993 0.41 1041 0.43 1089 0.46
1300
611 0.24 677 0.27 740
1400
654 0.26 713 0.29 771 0.33 826 0.36 878 0.39 928 0.43 976 0.47 1023 0.49 1070 0.52 1117 0.55
1500
698 0.28 751 0.32 802 0.36 852
1600
738 0.32 785 0.36 831 0.41 878 0.45 923 0.49 969 0.53 1014 0.57 1061 0.59 1107 0.62 1151 0.66
1700
773 0.36 816 0.41 859 0.46 903 0.51 947 0.55 991 0.58 1036 0.62 1082 0.65 1128 0.68 1169 0.72
1800
803 0.42 844 0.47 886 0.52 929 0.57 972 0.61 1016 0.64 1060 0.68 1106 0.71 1150 0.74 1189 0.79
1900
831 0.48 872 0.54 915 0.59 957 0.63 1000 0.67 1043 0.71 1087 0.74 1131 0.78 1173 0.81 1208 0.86
Air
Volume
(cfm)
0.2
0.3
0.2
779 0.22 844 0.25 905 0.28 960
0.3 1010 0.33 1061 0.35
731 0.23 796 0.25 858 0.28 916 0.31 969 0.34 1019 0.36 1069 0.38
800 0.32 856 0.35 909 0.39 959 0.42 1007 0.45 1055 0.47 1102 0.5
0.4
901 0.44 948 0.48 995 0.51 1041 0.54 1088 0.57 1133 0.6
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900
1112 0.38 1157 0.4 1198 0.43 1236 0.46 1273 0.49 1309 0.52 1344 0.56 1380 0.59
1000
1119 0.41 1164 0.44 1206 0.47 1244 0.5 1281 0.54 1317 0.57 1352 0.6 1387 0.64 1422 0.67 1458 0.71
1100
1126 0.45 1171 0.48 1213 0.51 1252 0.55 1288 0.58 1324 0.62 1359 0.65 1394 0.69 1429 0.72 1464 0.76
1200
1136 0.49 1180 0.52 1221 0.56 1259 0.6 1296 0.63 1331 0.67 1365 0.7 1400 0.74 1435 0.78 1471 0.81
1300
1148 0.53 1190 0.57 1230 0.61 1268 0.65 1304 0.68 1338 0.72 1372 0.76 1406 0.79 1440 0.83 1476 0.87
1400
1161 0.58 1202 0.62 1240 0.66 1277 0.7 1312 0.74 1346 0.78 1379 0.81 1412 0.85 1446 0.89 1482 0.92
1500
1175 0.64 1214 0.68 1252 0.72 1287 0.76 1321 0.8 1355 0.83 1387 0.87 1420 0.91 1454 0.95 1490 0.99
1600
1190 0.7 1228 0.74 1264 0.78 1298 0.82 1332 0.86 1364 0.9 1397 0.93 1430 0.97 1464 1.01 1499 1.06
1700
1206 0.76 1242 0.8 1277 0.84 1310 0.88 1343 0.92 1375 0.96 1407
1800
1223 0.83 1257 0.87 1291 0.91 1324 0.95 1356 0.99 1388 1.03 1420 1.08 1453 1.12 1487 1.16 1523 1.21
1900
1240 0.91 1273 0.95 1306 0.99 1338 1.03 1369 1.07 1401 1.12 1433 1.16 1467 1.2 1501 1.25 1537 1.29
Page 32
1
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1440 1.04 1475 1.09 1510 1.13
BLOWER DATA - LCH BELT DRIVE - 4 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
HORIZONTAL
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900
493 0.12 564 0.14 637 0.17 712 0.19 788 0.21 847 0.24 894 0.27 942
1000
520 0.14 589 0.17 660 0.19 733 0.21 805 0.24 861 0.27 907
1100
549 0.16 617 0.19 686 0.22 756 0.24 823 0.27 876
1200
582 0.19 648 0.22 714 0.25 781 0.27 843
1300
624 0.22 686 0.25 747 0.28 808 0.31 865 0.34 912 0.38 956 0.42 1001 0.45 1048 0.48 1096 0.5
1400
670 0.24 726 0.27 782 0.31 837 0.35 887 0.39 932 0.43 975 0.47 1020 0.5 1066 0.52 1112 0.55
1500
714 0.26 765 0.31 814 0.35 863 0.39 910 0.44 953 0.48 996 0.52 1041 0.55 1086 0.58 1130 0.61
1600
752
1700
785 0.35 827
1800
813 0.42 855 0.47 898 0.52 940 0.57 983 0.62 1025 0.66 1067 0.69 1110 0.72 1152 0.76 1190 0.8
1900
841 0.49 883 0.54 926
Air
Volume
(cfm)
0.3
798 0.35 844
0.4
0.4
0.3
0.3
0.3
0.3
993 0.33 1046 0.35
954 0.33 1004 0.36 1056 0.38
921 0.33 968 0.37 1017 0.39 1067 0.42
893 0.34 938 0.37 984 0.41 1032 0.43 1081 0.46
889 0.45 933 0.49 975 0.53 1018 0.57 1062 0.6 1107 0.63 1149 0.67
871 0.46 914 0.51 957 0.55 999 0.59 1042 0.63 1085 0.66 1129 0.69 1169 0.73
0.6
969 0.65 1011 0.69 1052 0.72 1094 0.76 1136 0.79 1176 0.83 1212 0.89
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900
1097 0.38 1142 0.41 1182 0.43 1218 0.46 1252 0.49 1284 0.52 1314 0.55 1344 0.57
1000
1105 0.41 1149 0.44 1190 0.47 1226 0.5 1260 0.53 1292 0.56 1322 0.59 1352 0.62 1381 0.65 1410 0.68
1100
1115 0.45 1158 0.48 1198 0.51 1235 0.55 1269 0.58 1301 0.61 1331 0.64 1360 0.67 1389 0.7 1418 0.73
1200
1126 0.49 1168 0.53 1208 0.56 1244 0.6 1278 0.63 1309 0.66 1340 0.69 1369 0.72 1398 0.75 1426 0.78
1300
1140 0.54 1180 0.57 1218 0.61 1254 0.65 1287 0.68 1319 0.72 1349 0.75 1378 0.78 1407 0.81 1436 0.84
1400
1154 0.59 1193 0.63 1230 0.67 1265 0.7 1298 0.74 1330 0.78 1360 0.81 1389 0.85 1418 0.88 1447 0.91
1500
1170 0.65 1208 0.69 1244 0.73 1278 0.77 1310 0.8 1341 0.84 1371 0.88 1401 0.91 1430 0.95 1459 0.98
1600
1187 0.71 1223 0.75 1258 0.79 1291 0.83 1323 0.87 1354 0.91 1384 0.95 1414 0.99 1443 1.02 1474 1.06
1700
1204 0.78 1240 0.82 1274 0.86 1306 0.9 1338 0.95 1369 0.99 1399 1.03 1429 1.06 1459 1.1 1490 1.14
1800
1223 0.85 1258 0.9 1291 0.94 1323 0.99 1354 1.03 1385 1.07 1415 1.11 1445 1.15 1476 1.19 1507 1.23
1900
1243 0.94 1277 0.99 1309 1.03 1341 1.08 1372 1.12 1402 1.16 1433 1.2 1464 1.24 1495 1.28 1527 1.32
Page 33
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---
---
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BLOWER DATA - BELT DRIVE - 5 TON
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100
529 0.17 591 0.21 653 0.24 724 0.26 810 0.26 886 0.26 942 0.28 982 0.32 1022 0.36 1064 0.40
1200
553 0.20 615 0.24 677 0.27 747 0.30 829 0.30 902 0.30 955 0.33 994 0.36 1034 0.40 1075 0.44
1300
579 0.23 640 0.27 701 0.31 770 0.33 850 0.34 918 0.35 969 0.37 1007 0.41 1047 0.45 1088 0.49
1400
609 0.27 669 0.31 729 0.34 796 0.37 871 0.38 936 0.39 983 0.41 1022 0.45 1061 0.49 1102 0.53
1500
658 0.28 715 0.32 771 0.36 832 0.39 898 0.41 955 0.43 999 0.46 1037 0.50 1077 0.54 1117 0.58
1600
720 0.28 769 0.33 819 0.37 871 0.41 926 0.44 975 0.47 1016 0.51 1054 0.55 1093 0.60 1133 0.63
1700
779 0.30 822 0.35 864 0.39 908 0.44 953 0.48 995 0.52 1034 0.57 1072 0.61 1111 0.65 1150 0.69
1800
828 0.34 864 0.39 901 0.43 938 0.48 977 0.53 1015 0.58 1053 0.63 1091 0.67 1130 0.71 1169 0.75
1900
857 0.41 892 0.45 927 0.50 962 0.55 999 0.60 1036 0.65 1074 0.69 1112 0.73 1150 0.77 1188 0.81
2000
879 0.47 913 0.52 948 0.56 984 0.61 1020 0.67 1058 0.72 1096 0.76 1134 0.80 1172 0.84 1210 0.88
2100
900 0.53 935 0.58 970 0.63 1007 0.69 1044 0.74 1081 0.79 1119 0.84 1157 0.88 1195 0.91 1233 0.95
2200
922 0.60 958 0.65 994 0.71 1031 0.76 1068 0.82 1106 0.87 1143 0.91 1180 0.95 1218 0.99 1255 1.03
2300
947 0.67 983 0.73 1020 0.79 1057 0.85 1094 0.90 1131 0.95 1168 1.00 1205 1.03 1242 1.07 1277 1.13
2400
974 0.76 1010 0.82 1047 0.88 1084 0.94 1120 0.99 1157 1.04 1193 1.08 1230 1.12 1267 1.16 1300 1.23
Air
Volume
(cfm)
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100
1106 0.44 1151 0.47 1197 0.49 1238 0.52 1272 0.56
---
---
---
---
---
1200
1117 0.48 1161 0.51 1206 0.53 1245 0.57 1278 0.60 1312 0.64 1346 0.67 1380 0.71
---
---
---
---
1300
1129 0.52 1172 0.55 1216 0.58 1254 0.61 1287 0.65 1320 0.69 1354 0.72 1388 0.76 1421 0.79 1455 0.82
1400
1143 0.57 1185 0.60 1227 0.63 1264 0.66 1296 0.70 1329 0.74 1363 0.77 1397 0.81 1430 0.85 1464 0.88
1500
1157 0.62 1199 0.65 1239 0.68 1275 0.71 1306 0.75 1339 0.79 1373 0.83 1406 0.87 1440 0.90 1473 0.94
1600
1173 0.67 1214 0.70 1253 0.73 1288 0.77 1318 0.81 1351 0.85 1384 0.89 1417 0.93 1451 0.96 1484 1.00
1700
1190 0.72 1230 0.76 1268 0.79 1301 0.83 1331 0.87 1363 0.92 1396 0.95 1429 0.99 1462 1.03 1495 1.07
1800
1208 0.78 1247 0.82 1285 0.86 1317 0.90 1345 0.94 1377 0.98 1410 1.02 1442 1.06 1475 1.10 1508 1.14
1900
1227 0.85 1267 0.88 1303 0.92 1333 0.97 1360 1.02 1392 1.06 1424 1.10 1457 1.14 1489 1.18 1522 1.22
2000
1248 0.92 1286 0.96 1321 1.00 1350 1.05 1377 1.10 1409 1.14 1441 1.18 1473 1.22 1505 1.26 1537 1.30
2100
1269 1.00 1306 1.04 1339 1.09 1367 1.14 1395 1.19 1426 1.23 1458 1.27 1490 1.31 1522 1.35 1554 1.39
2200
1290 1.09 1324 1.14 1356 1.19 1385 1.24 1413 1.28 1444 1.32 1476 1.36 1508 1.41 1540 1.45 1572 1.49
2300
1310 1.20 1343 1.26 1374 1.30 1403 1.34 1432 1.38 1464 1.42 1495 1.46 1527 1.51 1559 1.55 1591 1.59
2400
1332 1.31 1364 1.37 1394 1.41 1423 1.45 1453 1.48 1484 1.53 1516 1.57 1547 1.61 1579 1.65 1612 1.70
Page 34
---
---
---
---
---
BLOWER DATA - LGH BELT DRIVE - 5 TON - STANDARD EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
HORIZONTAL
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100
503 0.14 569 0.17 636 0.20 703 0.23 769 0.26 842 0.28 909 0.30 964 0.33 1008 0.36 1049 0.40
1200
525 0.16 590 0.20 657 0.23 722 0.26 787 0.29 857 0.31 921 0.34 974 0.37 1016 0.40 1056 0.43
1300
548 0.19 613 0.23 679 0.26 743 0.29 806 0.32 873 0.35 934 0.37 984 0.41 1026 0.44 1065 0.47
1400
574 0.22 638 0.26 702 0.30 765 0.33 827 0.36 891 0.39 949 0.41 996 0.45 1037 0.48 1076 0.51
1500
609 0.25 671 0.29 733 0.33 793 0.36 851 0.39 911 0.42 965 0.46 1010 0.49 1049 0.53 1088 0.56
1600
654 0.28 712 0.32 769 0.36 825 0.39 879 0.43 933 0.47 982 0.50 1024 0.54 1063 0.58 1101 0.61
1700
703 0.31 756 0.35 807 0.39 858 0.43 906 0.47 955 0.51 999 0.55 1039 0.59 1078 0.63 1117 0.66
1800
752 0.34 798 0.38 844 0.43 889 0.48 933 0.52 977 0.57 1017 0.61 1056 0.65 1094 0.68 1133 0.72
1900
796 0.38 837 0.43 878 0.48 918 0.53 958 0.58 997 0.62 1036 0.67 1074 0.71 1112 0.74 1151 0.77
2000
833 0.43 870 0.48 907 0.54 943 0.59 980 0.64 1018 0.69 1055 0.73 1093 0.77 1131 0.80 1170 0.83
2100
864 0.50 897 0.55 931 0.60 966 0.65 1002 0.71 1038 0.76 1075 0.80 1113 0.83 1151 0.87 1189 0.90
2200
887 0.57 920 0.62 953 0.67 988 0.73 1024 0.78 1060 0.83 1097 0.87 1135 0.90 1173 0.94 1210 0.98
2300
909 0.64 942 0.70 976 0.75 1011 0.81 1046 0.86 1083 0.91 1120 0.95 1157 0.98 1195 1.02 1231 1.06
2400
931 0.72 965 0.78 999 0.83 1035 0.89 1071 0.94 1108 0.99 1144 1.03 1181 1.07 1217 1.10 1252 1.15
Air
Volume
(cfm)
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100
1090 0.42 1132 0.45 1175 0.47 1216 0.50 1257 0.53 1296 0.56 1334 0.59 1370 0.62 1405 0.65 1439 0.69
1200
1097 0.46 1139 0.49 1181 0.51 1222 0.54 1263 0.57 1301 0.60 1338 0.63 1374 0.67 1409 0.70 1443 0.74
1300
1106 0.50 1147 0.53 1189 0.55 1230 0.58 1270 0.61 1307 0.65 1344 0.68 1379 0.72 1414 0.75 1447 0.79
1400
1116 0.54 1157 0.57 1198 0.60 1239 0.63 1278 0.66 1315 0.70 1351 0.74 1385 0.77 1419 0.81 1452 0.85
1500
1128 0.59 1168 0.62 1209 0.64 1249 0.68 1287 0.71 1323 0.75 1358 0.79 1393 0.83 1426 0.87 1458 0.91
1600
1141 0.64 1181 0.67 1222 0.70 1261 0.73 1298 0.77 1333 0.81 1367 0.85 1401 0.89 1433 0.93 1465 0.97
1700
1156 0.69 1196 0.72 1235 0.75 1273 0.79 1309 0.83 1344 0.87 1377 0.91 1410 0.96 1442 1.00 1473 1.04
1800
1172 0.75 1211 0.78 1250 0.81 1287 0.85 1322 0.90 1355 0.94 1388 0.98 1420 1.02 1451 1.07 1482 1.11
1900
1190 0.81 1228 0.84 1265 0.88 1301 0.92 1335 0.97 1367 1.01 1399 1.05 1431 1.10 1462 1.14 1492 1.18
2000
1208 0.87 1245 0.91 1281 0.96 1316 1.00 1349 1.04 1380 1.09 1412 1.13 1443 1.18 1473 1.22 1503 1.26
2100
1227 0.94 1263 0.99 1298 1.04 1331 1.08 1363 1.13 1394 1.17 1425 1.22 1455 1.26 1485 1.31 1515 1.35
2200
1246 1.02 1281 1.07 1315 1.12 1347 1.17 1379 1.22 1409 1.26 1439 1.31 1469 1.36 1499 1.40 1529 1.45
2300
1266 1.11 1300 1.16 1333 1.22 1364 1.27 1395 1.32 1424 1.36 1454 1.41 1484 1.46 1513 1.50 1543 1.55
2400
1286 1.20 1319 1.26 1351 1.32 1382 1.38 1411 1.43 1440 1.48 1470 1.52 1499 1.57 1528 1.61 1558 1.66
Page 35
BLOWER DATA - LCH BELT DRIVE - 5 TON - HIGH EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100
512 0.15 571 0.19 630 0.23 690 0.26 770 0.26 854 0.26 922 0.27 970 0.30 1006 0.35 1045 0.39
1200
535 0.18 593 0.22 651 0.26 710 0.29 788 0.30 868 0.30 933 0.31 978 0.34 1013 0.38 1053 0.42
1300
559 0.22 616 0.26 674 0.29 732 0.32 807 0.34 883 0.34 944 0.35 987 0.38 1022 0.42 1062 0.46
1400
584 0.26 641 0.29 698 0.33 755 0.36 827 0.37 899 0.38 956 0.40 997 0.43 1033 0.47 1072 0.51
1500
615 0.29 671 0.33 726 0.36 782 0.39 850 0.41 917 0.42 970 0.44 1009 0.47 1045 0.52 1085 0.56
1600
665 0.30 716 0.34 768 0.38 819 0.41 879 0.44 937 0.46 985 0.49 1022 0.52 1059 0.57 1098 0.61
1700
723 0.31 768 0.35 814 0.39 860 0.43 910 0.47 959 0.50 1001 0.54 1037 0.58 1074 0.62 1113 0.66
1800
779 0.32 818 0.37 857 0.41 897 0.46 939 0.50 980 0.55 1018 0.59 1054 0.64 1091 0.68 1129 0.72
1900
826 0.36 859 0.41 894 0.45 928 0.50 964 0.56 1000 0.61 1036 0.66 1072 0.70 1109 0.75 1146 0.79
2000
857 0.42 889 0.47 920 0.52 952 0.57 986 0.62 1020 0.68 1055 0.73 1091 0.77 1128 0.82 1164 0.86
2100
878 0.49 909 0.54 940 0.59 973 0.64 1006 0.70 1041 0.75 1076 0.80 1112 0.85 1148 0.89 1185 0.93
2200
897 0.55 929 0.61 961 0.66 994 0.72 1028 0.78 1063 0.83 1099 0.89 1134 0.93 1170 0.97 1206 1.01
2300
918 0.62 950 0.68 983 0.74 1017 0.80 1052 0.86 1087 0.92 1122 0.97 1157 1.02 1193 1.06 1228 1.09
2400
941 0.70 974 0.77 1008 0.83 1042 0.90 1077 0.96 1111 1.01 1146 1.06 1181 1.11 1216 1.15 1250 1.19
Air
Volume
(cfm)
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100
1089 0.43 1134 0.46
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
1200
1095 0.46 1139 0.50 1186 0.53 1230 0.57 1266 0.60
---
---
---
---
---
---
---
---
---
---
1300
1104 0.50 1146 0.54 1192 0.57 1234 0.60 1269 0.64 1301 0.68 1334 0.71 1367 0.75
---
---
---
---
1400
1114 0.55 1155 0.58 1199 0.61 1240 0.65 1275 0.68 1305 0.72 1338 0.76 1372 0.80 1406 0.83 1440 0.87
1500
1125 0.60 1165 0.63 1208 0.66 1248 0.69 1281 0.73 1311 0.77 1344 0.81 1378 0.85 1412 0.89 1446 0.92
1600
1138 0.65 1177 0.68 1218 0.71 1257 0.75 1290 0.79 1319 0.83 1352 0.87 1385 0.91 1418 0.95 1452 0.98
1700
1152 0.70 1190 0.74 1231 0.77 1268 0.80 1299 0.84 1328 0.89 1360 0.93 1393 0.97 1426 1.01 1459 1.05
1800
1167 0.76 1205 0.80 1244 0.83 1280 0.87 1310 0.91 1338 0.95 1370 0.99 1402 1.04 1434 1.08 1466 1.11
1900
1183 0.82 1221 0.86 1260 0.90 1294 0.94 1323 0.98 1349 1.02 1380 1.07 1412 1.11 1443 1.15 1475 1.19
2000
1201 0.89 1239 0.93 1276 0.97 1310 1.01 1336 1.06 1362 1.10 1392 1.15 1423 1.19 1454 1.23 1485 1.27
2100
1221 0.97 1258 1.01 1294 1.05 1325 1.09 1351 1.14 1376 1.19 1406 1.23 1436 1.27 1466 1.31 1497 1.35
2200
1242 1.05 1277 1.09 1311 1.14 1341 1.18 1365 1.23 1390 1.28 1420 1.32 1450 1.36 1480 1.41 1510 1.45
2300
1262 1.14 1295 1.19 1327 1.24 1355 1.29 1380 1.33 1406 1.37 1435 1.42 1465 1.46 1494 1.50 1524 1.54
2400
1282 1.24 1313 1.30 1343 1.36 1371 1.40 1396 1.44 1423 1.48 1452 1.52 1481 1.56 1510 1.60 1540 1.64
Page 36
BLOWER DATA - LCH BELT DRIVE - 5 TON - HIGH EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
HORIZONTAL
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100
509 0.15 562 0.18 624 0.20 691 0.22 771 0.24 852 0.25 919 0.28 970 0.31 1010 0.35 1049 0.38
1200
535 0.18 589 0.21 650 0.23 715 0.25 792 0.27 869 0.29 932 0.32 980 0.35 1019 0.38 1058 0.42
1300
564 0.21 618 0.24 678 0.27 741 0.29 815 0.31 887 0.33 946 0.36 991 0.39 1030 0.43 1068 0.47
1400
604 0.24 657 0.27 715 0.30 775 0.33 842 0.35 908 0.37 962 0.40 1004 0.43 1042 0.47 1080 0.51
1500
656 0.26 706 0.30 760 0.33 814 0.36 874 0.39 931 0.41 979 0.45 1019 0.48 1056 0.53 1094 0.57
1600
712 0.29 758 0.32 807 0.36 855 0.39 906 0.43 955 0.46 997 0.50 1035 0.54 1071 0.58 1109 0.62
1700
766 0.32 808 0.36 850 0.40 892 0.44 936 0.47 978 0.51 1016 0.56 1052 0.60 1088 0.64 1126 0.68
1800
814 0.36 851 0.40 888 0.44 925 0.49 963 0.53 1000 0.57 1035 0.62 1071 0.66 1107 0.70 1143 0.74
1900
853 0.41 886 0.46 919 0.50 952 0.55 986 0.60 1021 0.64 1056 0.69 1091 0.73 1126 0.77 1163 0.81
2000
883 0.48 913 0.53 944 0.57 976 0.62 1009 0.67 1043 0.71 1078 0.76 1112 0.80 1148 0.84 1183 0.88
2100
906 0.56 936 0.60 967 0.65 999 0.70 1033 0.75 1067 0.79 1101 0.84 1135 0.88 1170 0.92 1206 0.96
2200
930 0.64 960 0.68 991 0.73 1024 0.78 1058 0.83 1092 0.88 1126 0.92 1160 0.96 1195 1.00 1230 1.04
2300
954 0.72 985 0.77 1017 0.82 1051 0.87 1085 0.92 1119 0.96 1152 1.00 1186 1.04 1220 1.08 1254 1.13
2400
981 0.81 1013 0.86 1046 0.91 1079 0.96 1113 1.00 1146 1.05 1180 1.09 1213 1.13 1245 1.18 1278 1.22
Air
Volume
(cfm)
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100
1091 0.42 1134 0.45 1176 0.48 1218 0.51 1258 0.54 1297 0.57 1335 0.59
1200
1099 0.46 1141 0.49 1182 0.52 1223 0.55 1263 0.58 1302 0.61 1339 0.64 1376 0.67 1410 0.70 1444 0.72
1300
1108 0.50 1149 0.53 1190 0.56 1230 0.59 1270 0.63 1308 0.66 1345 0.70 1381 0.73 1415 0.75 1449 0.78
1400
1120 0.55 1160 0.58 1200 0.61 1240 0.65 1278 0.68 1315 0.72 1352 0.75 1387 0.78 1421 0.81 1454 0.84
1500
1133 0.60 1172 0.63 1212 0.67 1250 0.70 1288 0.74 1324 0.77 1360 0.81 1394 0.84 1428 0.87 1460 0.90
1600
1147 0.66 1186 0.69 1225 0.72 1263 0.76 1299 0.80 1334 0.83 1369 0.87 1402 0.90 1435 0.94 1467 0.96
1700
1164 0.72 1202 0.75 1240 0.78 1276 0.82 1311 0.86 1345 0.90 1379 0.93 1411 0.97 1443 1.00 1475 1.03
1800
1181 0.78 1219 0.81 1256 0.85 1291 0.89 1324 0.93 1357 0.97 1390 1.00 1421 1.04 1453 1.07 1483 1.10
1900
1200 0.85 1237 0.88 1273 0.92 1306 0.96 1339 1.00 1371 1.04 1402 1.08 1433 1.11 1463 1.15 1493 1.18
2000
1220 0.92 1257 0.96 1291 1.00 1323 1.04 1354 1.08 1385 1.12 1416 1.16 1446 1.20 1476 1.23 1505 1.26
2100
1242 1.00 1277 1.04 1310 1.08 1340 1.13 1371 1.17 1401 1.21 1431 1.25 1460 1.29 1489 1.32 1519 1.36
2200
1265 1.08 1299 1.13 1330 1.18 1359 1.23 1388 1.27 1418 1.31 1447 1.35 1476 1.39 1504 1.42 1533 1.45
2300
1288 1.17 1320 1.23 1350 1.28 1378 1.34 1406 1.38 1435 1.42 1464 1.46 1492 1.50 1521 1.53 1549 1.56
2400
1311 1.28 1341 1.33 1370 1.40 1397 1.45 1425 1.50 1454 1.54 1482 1.57 1510 1.61 1538 1.64 1567 1.67
Page 37
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---
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BLOWER DATA - LGH BELT DRIVE - 6 TON - HIGH EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
External Static (in.w.g.)
Air
Volume
(cfm)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900
510 0.45 544
2000
526 0.49 560 0.55 595
2100
542 0.54 576 0.59 610 0.65 644
2200
560 0.59 593 0.64 627
2300
578 0.64 610
2400
597
2500
617 0.76 648 0.81 679 0.87 710 0.92 741 0.97 770 1.03 799 1.08 825 1.13 850 1.17 875 1.22
2600
637 0.82 667 0.87 698 0.93 728 0.98 758 1.04 786 1.09 814 1.15 839
2700
658 0.88 687 0.94 717
2800
679 0.95 708 1.01 736 1.07 764 1.12 792 1.18 819 1.24 844
2900
701 1.02 728 1.08 756 1.14 783
0.7
0.5
0.7
579 0.55 614
0.6
0.7
0.6
649 0.65 684
629 0.65 663
0.7
0.7
0.8
718 0.74 752 0.79 784 0.83 812 0.88
697 0.75 730 0.79 763 0.84 794 0.88 820 0.93
678 0.75 711
660 0.75 693
0.7
0.8
743 0.84 775 0.89 804 0.94 830 0.98
725 0.85 757
0.9
787 0.94 814 0.99 840 1.03
644 0.75 676 0.81 709 0.86 740 0.91 770 0.95 799
1
826 1.05 851 1.09
629 0.75 661 0.81 693 0.86 725 0.91 755 0.96 784 1.01 812 1.06 838 1.11 862 1.15
1
1.2
864 1.24 887 1.28
746 1.05 775 1.11 802 1.16 829 1.22 853 1.27 877 1.31 901 1.36
1.2
1.3
868 1.35 892 1.39 915 1.43
809 1.26 835 1.32 860 1.38 884 1.43 907 1.47 930 1.52
External Static (in.w.g.)
Air
Volume
(cfm)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900
837 0.92 861 0.96 886
2000
845 0.97 870 1.01 895 1.05 921 1.09 948 1.12 974 1.17 999 1.22 1023 1.27 1047 1.33 1070 1.39
2100
855 1.02 879 1.06 904
2200
865 1.08 889 1.12 914 1.15 940 1.19 966 1.24 990 1.29 1014 1.34 1037 1.41 1059 1.47 1081 1.54
2300
875 1.13 900 1.17 925 1.21 951 1.25 976
2400
887 1.19 912 1.23 936 1.27 961 1.32 986 1.37 1009 1.43 1031 1.49 1052 1.57 1073 1.64 1094 1.71
2500
899 1.25 923 1.29 948 1.34 973 1.39 996 1.44 1018 1.51 1039 1.58 1060 1.65 1080 1.73 1101 1.8
2600
912 1.32 936 1.36 960 1.41 984 1.46 1007 1.52 1028 1.59 1049 1.67 1069 1.75 1089 1.82 1109 1.89
2700
925
2800
939 1.47 962 1.52 985 1.57 1008 1.64 1029 1.71 1049 1.79 1069 1.87 1088 1.94 1107 2.02 1127 2.09
2900
953 1.56 976 1.61 998 1.67 1020 1.73 1041 1.81 1060 1.89 1079 1.98 1098 2.06 1117 2.13 1137 2.21
1.4
1
1.1
913 1.04 939 1.07 966 1.11 992 1.16 1017 1.21 1041 1.27 1065 1.33
930 1.14 956 1.18 982 1.22 1006 1.28 1030 1.34 1053 1.4 1075 1.46
1.3
999 1.35 1022 1.41 1044 1.48 1066 1.55 1087 1.62
949 1.44 973 1.49 996 1.55 1018 1.61 1038 1.69 1058 1.76 1078 1.84 1098 1.92 1118 1.99
Page 38
BLOWER DATA - LGH BELT DRIVE - 6 TON - HIGH EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
HORIZONTAL
External Static (in.w.g.)
Air
Volume
(cfm)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900
485 0.55 516 0.57 549 0.59 583 0.62 618 0.65 654 0.69 689 0.73 724 0.77 758 0.82 790 0.86
2000
499 0.59 531 0.61 563 0.63 597 0.66 631
2100
514 0.63 546 0.65 578 0.68 611 0.71 645 0.74 679 0.78 712 0.82 745 0.86 777 0.91 806 0.96
2200
530 0.68 562
2300
548 0.73 579 0.75 610 0.78 643 0.81 675 0.85 707 0.88 738 0.93 769 0.97 798 1.02 826 1.06
2400
566 0.78 596 0.81 628 0.84 659 0.87 691
2500
585 0.84 615 0.86 645
2600
604
2700
624 0.96 653 0.99 682 1.02 712 1.06 741 1.09 769 1.13 796 1.18 823 1.22 849 1.27 873 1.32
2800
645 1.02 673 1.05 701 1.09 730 1.12 758 1.16 785
2900
665 1.09 693 1.12 721 1.16 748 1.19 775 1.23 802 1.27 827 1.32 852 1.36 877 1.41 900 1.46
0.9
0.7
0.7
666 0.73 701 0.77 734 0.82 767 0.86 798 0.91
594 0.73 627 0.76 660 0.79 693 0.83 725 0.87 757 0.92 787 0.96 816 1.01
0.9
0.9
722 0.94 752 0.98 782 1.03 810 1.08 837 1.12
676 0.93 707 0.96 737
1
767 1.05 795 1.09 822 1.14 848 1.19
634 0.93 664 0.96 694 0.99 724 1.03 753 1.07 781 1.11 809 1.15 835
1.2
1.2
861 1.25
812 1.25 838 1.29 862 1.34 886 1.39
External Static (in.w.g.)
Air
Volume
(cfm)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900
819
0.9
2000
826 0.95 852 0.99 877 1.03 902 1.06 928
2100
834
2200
842 1.05 868
2300
852
2400
862 1.17 887 1.21 911 1.25 935
2500
873 1.23 897 1.28 921 1.32 945 1.36 969 1.41 992 1.46 1016 1.52 1038 1.58 1060 1.64 1082 1.7
2600
885
2700
897 1.37 920 1.41 944 1.46 967 1.51 990 1.57 1012 1.62 1034 1.69 1056 1.75 1077 1.82 1098 1.89
2800
910 1.44 933 1.49 955 1.54 978
2900
923 1.52 945 1.57 968 1.63 990 1.68 1012 1.75 1034 1.81 1055 1.88 1076 1.95 1096 2.02 1116 2.09
1
846 0.94 871 0.98 897 1.02 922 1.05 948 1.09 974 1.13 999 1.18 1025 1.23 1050 1.28
1.1
953 1.14 979 1.18 1004 1.23 1029 1.28 1054 1.34
859 1.04 884 1.08 909 1.12 934 1.15 960
1.1
1.2
985 1.24 1010 1.29 1034 1.35 1058 1.4
892 1.13 917 1.17 942 1.21 967 1.26 992
1.3 1016 1.36 1040 1.41 1063 1.47
1.11 877 1.15 901 1.19 926 1.23 950 1.27 975 1.32 999 1.37 1023 1.42 1046 1.48 1069 1.54
1.3
1.3
959 1.34 983 1.39 1007 1.44 1030 1.5 1053 1.56 1075 1.62
909 1.34 932 1.39 955 1.43 979 1.49 1002 1.54 1025 1.6 1047 1.66 1069 1.73 1090 1.79
1.6 1001 1.65 1023 1.72 1044 1.78 1066 1.85 1086 1.92 1107 1.99
Page 39
BLOWER DATA - LCH BELT DRIVE - 6 TON - HIGH EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900
480 0.38 512 0.44 545 0.51 579 0.57 614 0.63 648
2000
493 0.43 525 0.49 558 0.56 592 0.62 626 0.68 659 0.75 693 0.81 728 0.88 759 0.94 788
2100
507 0.48 539 0.54 572 0.61 605 0.67 639 0.74 671
2200
522 0.53 554
2300
537 0.59 569 0.65 602 0.72 634 0.79 666 0.85 697 0.91 728 0.98 758 1.04 786
2400
553 0.65 585 0.71 617 0.78 649 0.85 680 0.91 711 0.98 740 1.04 769
2500
570 0.71 602 0.78 633 0.84 665 0.91 695 0.97 725 1.04 753
2600
588 0.77 619 0.84 650 0.91 680 0.97 710 1.04 739
2700
607 0.84 637 0.91 667 0.97 697 1.04 726 1.11 753 1.17 780 1.23 806 1.29 830 1.35 854
2800
626 0.91 655 0.97 684 1.04 713 1.11 741 1.18 768 1.24 794
2900
646 0.98 674 1.05 702 1.11 730 1.18 757 1.25 783 1.32 808 1.38 832 1.44 855 1.49 878 1.54
Air
Volume
(cfm)
0.6
0.7
0.8
683 0.76 719 0.83 752 0.89 781 0.95
704 0.86 737 0.93 768 0.99 795 1.04
587 0.66 619 0.73 652 0.79 684 0.86 716 0.92 747 0.98 777 1.04 803
1.1
1
1.1
1.1
1.1
1.1
812 1.15
796 1.15 821 1.21
781 1.16 807 1.22 832 1.27
767 1.16 793 1.22 818 1.28 842 1.33
1.3
1.4
819 1.36 842 1.42 866 1.47
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900
807
1
2000
813 1.04 838 1.08 862 1.12 889 1.15 917 1.19 945 1.22 972 1.26 997
2100
820 1.09 844 1.13 869 1.17 895 1.21 923 1.24 951 1.28 977 1.32 1001 1.36 1024 1.41 1046 1.46
2200
828 1.14 852 1.18 877 1.22 903 1.26 930
2300
836
2400
846 1.25 870 1.29 895 1.33 920 1.37 947 1.41 972 1.45 996
2500
856 1.31 880 1.35 905 1.39 930 1.43 956 1.47 980 1.52 1003 1.57 1024 1.63 1044 1.69 1064 1.76
2600
866 1.38 891 1.42 915 1.46 940
2700
878 1.44 902 1.48 926 1.52 950 1.57 974 1.61 997 1.67 1018 1.73 1037 1.8 1056 1.87 1075 1.93
2800
889 1.51 913 1.55 937 1.59 961 1.64 984 1.69 1006 1.75 1026 1.82 1044 1.89 1063 1.96 1081 2.03
2900
902 1.58 925 1.63 949 1.67 972 1.72 994 1.78 1015 1.84 1034 1.91 1052 1.99 1069 2.06 1087 2.13
1.2
832 1.04 857 1.07 883 1.11 912 1.14 941 1.17 968 1.21 993 1.25 1017 1.29 1039 1.34
1.3
1.3 1020 1.35 1042 1.4
957 1.33 983 1.37 1006 1.42 1028 1.47 1050 1.53
861 1.24 885 1.28 911 1.31 938 1.35 964 1.39 989 1.43 1012 1.48 1033 1.54 1054 1.6
1.5
1.5 1018 1.55 1039 1.61 1059 1.67
965 1.54 988 1.59 1010 1.65 1031 1.71 1050 1.78 1069 1.84
Page 40
BLOWER DATA - LCH BELT DRIVE - 6 TON - HIGH EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
HORIZONTAL
Air
Volume
(cfm)
External Static (in.w.g.)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.9
1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900
507 0.55 538 0.58 571
2000
522 0.59 554 0.62 586 0.64 620 0.67 653 0.71 687 0.74 720 0.78 752 0.82 783 0.87 812 0.91
2100
539 0.63 571 0.66 603 0.69 636 0.72 669 0.75 702 0.79 734 0.83 765 0.88 795 0.92 823 0.97
2200
557 0.68 588 0.71 620 0.74 652 0.77 685 0.81 717 0.84 748 0.89 778 0.93 807 0.98 834 1.03
2300
576 0.73 607 0.76 638 0.79 670 0.83 701 0.86 733
2400
596 0.79 626 0.82 657 0.85 688 0.89 718 0.92 749 0.96 778 1.01 806 1.06 833 1.11 858 1.16
2500
616 0.85 645 0.88 676 0.91 706 0.95 736 0.99 765 1.03 794 1.08 821 1.13 847 1.18 871 1.23
2600
636 0.91 665 0.94 695 0.98 724 1.02 754 1.06 782
2700
657 0.97 685 1.01 714 1.04 743 1.08 771 1.13 799 1.17 826 1.22 851 1.27 875 1.32 899 1.37
2800
677 1.03 706 1.07 734 1.11 762 1.16 790
2900
698
Air
Volume
(cfm)
1.1
0.6
604 0.63 639 0.66 673
1.2
0.7
0.9
1.1
707 0.74 740 0.78 772 0.82 802 0.86
763 0.95 792 0.99 820 1.04 846 1.09
809 1.15 836
816 1.25 842
1.3
1.2
861 1.25 885
867 1.35 890
1.4
1.3
913 1.45
726 1.14 754 1.19 781 1.23 808 1.28 834 1.33 859 1.38 883 1.43 906 1.48 928 1.54
External Static (in.w.g.)
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900
830 0.91 857 0.95 883 0.99 910 1.04 937 1.09 964 1.13 991 1.18 1017 1.23 1042 1.28 1067 1.34
2000
839 0.96 865
2100
849 1.02 874 1.06 900 1.11 926 1.15 952
2200
860 1.08 885 1.12 910 1.17 935 1.21 960 1.26 986 1.31 1010 1.36 1034 1.42 1058 1.48 1081 1.53
2300
871 1.14 895 1.19 920 1.23 945 1.28 969 1.33 994 1.38 1018 1.43 1042 1.49 1065 1.55 1087 1.61
2400
883 1.21 907 1.25 931
2500
895 1.28 919 1.32 942 1.37 966 1.42 990 1.48 1013 1.53 1036 1.59 1059 1.65 1081 1.71 1102 1.78
2600
908 1.35 931
1.5 1001 1.56 1024 1.62 1046 1.68 1068 1.74 1089 1.8
1110 1.87
2700
922 1.43 945 1.48 967 1.53 990 1.59 1013 1.65 1035 1.71 1056 1.77 1078 1.84 1099 1.9
1119 1.96
2800
936 1.51 958 1.56 980 1.62 1003 1.68 1025 1.74 1046 1.8 1067 1.87 1088 1.93 1109
1129 2.06
2900
950
1.6
1
1.4
891 1.05 917 1.09 944 1.14 970 1.19 996 1.24 1022 1.29 1047 1.34 1071 1.4
1.3
955 1.35 979
955 1.45 978
1.2
978 1.25 1003 1.3 1028 1.35 1052 1.41 1075 1.46
1.4 1003 1.45 1027 1.51 1050 1.57 1072 1.63 1094 1.69
2
972 1.66 994 1.72 1016 1.78 1037 1.84 1058 1.91 1079 1.97 1099 2.04 1119 2.11 1139 2.17
Page 41
Page 42
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0.8
0.9
1.0
1.1
1.2
29
39
36
32
---
---
---
---
---
---
---
---
380
---
---
---
---
---
---
---
---
637
554
464
---
---
---
---
---
---
---
0.6
0.8
0.9
1.0
1.1
1.2
---
0.5
0.7
217
149
0.3
0.4
432
334
0.1
0.2
---
---
---
---
---
---
---
---
39
36
32
29
---
---
---
---
---
---
---
---
636
578
479
395
External
Static
10%
Press.
in. w.g. Cfm Watts RPM
HORIZONTAL
---
---
0.6
---
0.5
0.7
255
166
0.3
0.4
459
357
0.1
0.2
External
Static
10%
Press.
in. w.g. Cfm Watts RPM
DOWNFLOW
30%
47
20%
---
---
---
---
---
---
---
72
67
61
55
414
---
---
---
---
---
---
---
739
669
596
520
903
---
---
---
---
---
---
---
661
716
772
828
76
30%
---
---
---
---
---
---
---
111
102
94
86
475
---
---
---
---
---
---
---
759
694
607
563
---
---
---
---
---
---
---
372
436
517
581
674
---
---
---
---
---
---
---
73
68
61
56
49
---
---
---
---
---
---
---
749
684
603
537
443
---
---
---
---
---
---
---
644
703
763
822
882
---
---
---
---
---
---
---
114
105
96
87
79
---
---
---
---
---
---
---
786
719
651
582
511
Cfm Watts RPM Cfm Watts RPM
---
---
---
---
---
---
---
369
445
521
596
698
Cfm Watts RPM Cfm Watts RPM
20%
110
40%
---
---
202
193
184
175
162
153
143
130
120
539
---
---
1043
997
950
901
834
782
728
654
597
---
---
611
663
714
765
816
867
918
953
1021
1053
---
---
203
194
185
176
166
155
145
137
122
115
---
---
1073
1022
970
915
858
799
738
696
609
567
Cfm Watts RPM
---
---
623
670
716
762
823
869
916
977
1023
1069
Cfm Watts RPM
40%
---
---
816
866
915
948
997
1046
1079
1128
1178
1211
Cfm
---
---
818
862
905
963
1006
1050
1108
1137
1180
1224
Cfm
---
---
1049
1007
964
903
856
807
740
706
634
598
RPM
---
938
981
1040
1083
1127
1171
1214
1258
1302
1331
1374
Cfm
60%
---
325
314
299
287
275
262
249
235
220
210
195
---
1118
1074
1014
968
920
872
822
772
720
685
632
Watts RPM
---
---
259
247
235
227
214
201
193
179
165
156
Watts
50%
---
---
1085
1030
974
936
879
820
781
720
659
617
RPM
---
939
981
1024
1081
1109
1152
1194
1237
1265
1308
1334
Cfm
---
325
315
304
288
280
267
254
239
230
215
205
---
1138
1096
1052
991
959
909
858
805
768
712
676
Watts RPM
60%
Percentage of Total Motor Torque
---
---
257
247
237
223
212
200
185
177
165
153
Watts
50%
Percentage of Total Motor Torque
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
---
1101
1140
1179
1231
1257
1296
1335
1374
1400
1439
1463
Cfm
---
1112
1151
1202
1241
1280
1319
1358
1397
1435
1461
1500
Cfm
677
---
1117
1079
1027
986
944
900
855
808
776
727
---
387
376
364
348
339
326
312
297
286
270
260
---
1152
1112
1070
1013
983
938
891
842
809
758
725
Watts RPM
70%
---
382
371
356
344
331
318
304
289
274
264
248
Watts RPM
70%
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
036 DIRECT DRIVE BLOWER - BASE UNIT
BLOWER DATA - DIRECT DRIVE - 3 TON - ULTRA HIGH EFFICIENCY
1198
1235
1285
1322
1360
1398
1435
1460
1498
1522
1560
1583
Cfm
1215
1256
1296
1336
1376
1416
1456
1483
1523
1550
1590
1617
Cfm
80%
723
1174
1135
1095
1054
1011
966
920
889
841
808
757
461
452
438
427
415
401
387
377
361
350
333
322
1200
1166
1118
1081
1041
1000
957
927
881
850
801
769
Watts RPM
80%
457
447
437
425
412
398
383
372
356
344
325
312
Watts RPM
1323
1364
1399
1434
1482
1517
1552
1576
1611
1634
1670
1692
Cfm
1344
1388
1426
1464
1502
1540
1565
1603
1641
1666
1704
1729
Cfm
90%
763
1188
1147
1110
1072
1032
991
962
919
874
843
796
532
521
511
500
484
471
457
447
431
420
402
391
1214
1178
1146
1112
1064
1026
987
960
917
888
843
813
Watts RPM
90%
526
513
501
488
474
460
450
434
417
406
387
375
Watts RPM
1439
1474
1508
1542
1588
1611
1645
1680
1714
1737
1771
1791
Cfm
1453
1490
1539
1576
1612
1637
1674
1710
1735
1772
1796
1821
Cfm
100%
803
1204
1171
1125
1088
1050
1024
983
940
911
866
835
606
596
586
575
558
550
536
521
505
494
477
466
1227
1197
1165
1133
1087
1063
1026
987
947
920
877
852
Watts RPM
100%
600
589
573
560
546
536
521
504
492
473
460
447
Watts RPM
Page 43
---
1.2
46
420
---
---
---
---
---
---
---
---
---
666
601
510
---
---
---
---
---
---
---
64
59
52
---
---
---
1.0
1.1
1.2
---
---
0.8
0.9
---
---
0.5
---
398
0.4
0.6
483
0.3
0.7
641
568
0.1
0.2
---
---
---
---
---
---
---
---
62
56
50
46
---
---
---
---
---
---
---
---
661
584
505
443
External
Static
10%
Press.
in. w.g. Cfm Watts RPM
HORIZONTAL
---
---
1.0
1.1
---
---
0.8
0.9
---
---
0.6
---
0.5
0.7
484
410
0.3
0.4
682
583
0.1
0.2
External
Static
10%
Press.
in. w.g. Cfm Watts RPM
DOWNFLOW
499
1148
131
---
---
---
---
---
---
---
176
162
152
142
579
---
---
---
---
---
---
---
805
739
688
635
---
---
---
---
---
---
---
671
724
778
831
875
---
---
---
---
---
---
---
113
106
98
90
82
---
---
---
---
---
---
---
763
707
647
582
522
---
---
---
---
---
---
---
957
1004
1050
1097
1127
---
---
---
---
---
---
---
179
167
155
144
137
---
---
---
---
---
---
---
822
764
706
650
614
Cfm Watts RPM
---
---
---
---
---
---
---
961
1019
1062
1105
Cfm Watts RPM
---
---
---
---
---
---
---
764
697
629
562
30%
---
---
---
---
---
---
---
114
105
96
87
20%
---
---
---
---
---
---
---
662
720
778
836
79
Cfm Watts RPM
Cfm Watts RPM
894
30%
20%
192
40%
---
---
312
302
287
270
257
244
231
217
204
651
---
---
1085
1047
992
933
887
840
792
744
697
---
---
1012
1052
1093
1120
1161
1201
1228
1269
1310
1334
---
---
314
302
288
279
265
250
240
225
211
202
---
---
1096
1051
1003
970
919
867
831
777
723
691
Cfm Watts RPM
---
---
1010
1047
1096
1145
1182
1218
1255
1292
1329
1366
Cfm Watts RPM
40%
---
---
1241
1275
1310
1344
1378
1413
1436
1470
1504
1524
Cfm
---
---
1255
1296
1326
1367
1398
1428
1469
1500
1530
1551
Cfm
726
---
---
1107
1058
1021
972
934
895
841
800
756
---
1425
1455
1485
1515
1555
1585
1615
1645
1675
1695
1725
Cfm
60%
---
505
491
476
462
443
429
414
397
380
368
348
---
1160
1125
1090
1056
1009
974
937
898
856
827
781
Watts RPM
---
---
407
393
379
365
350
335
325
308
290
280
---
---
1128
1087
1047
1006
964
921
891
844
793
762
Watts RPM
50%
---
1386
1434
1469
1493
1529
1552
1588
1612
1642
1671
1694
Cfm
---
516
502
488
477
459
447
427
413
396
379
367
---
1201
1155
1118
1091
1049
1019
973
941
900
859
827
Watts RPM
60%
Percentage of Total Motor Torque
---
---
403
385
372
354
341
327
309
294
279
268
Watts RPM
50%
Percentage of Total Motor Torque
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
---
1571
1615
1644
1667
1696
1718
1748
1777
1799
1829
1866
Cfm
---
1606
1635
1664
1693
1722
1751
1780
1808
1837
1856
1885
Cfm
840
---
1188
1155
1123
1090
1056
1022
987
950
910
883
---
625
610
595
583
564
549
530
511
498
484
470
---
1232
1191
1158
1131
1093
1064
1025
985
957
921
881
Watts RPM
70%
---
609
594
579
564
548
532
515
498
479
466
445
Watts RPM
70%
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
048 DIRECT DRIVE BLOWER - BASE UNIT
BLOWER DATA - DIRECT DRIVE - 4 TON - ULTRA HIGH EFFICIENCY
1620
1684
1747
1779
1818
1850
1874
1906
1930
1953
1977
1997
Cfm
1687
1762
1787
1824
1850
1874
1906
1931
1956
1981
2006
2031
Cfm
80%
893
1254
1216
1195
1157
1129
1098
1058
1025
992
958
925
697
713
715
711
700
688
676
657
640
621
600
581
1282
1266
1235
1213
1180
1150
1124
1087
1055
1022
986
955
Watts RPM
80%
715
717
710
693
679
663
641
622
603
585
567
550
Watts RPM
1633
1738
1843
1896
1930
1974
2000
2036
2062
2079
2106
2119
Cfm
1834
1883
1931
1963
1996
2028
2052
2076
2100
2125
2149
2165
Cfm
90%
950
1275
1250
1216
1188
1157
1122
1095
1066
1036
1005
972
707
760
802
812
812
805
796
777
758
743
715
699
1283
1277
1259
1239
1220
1189
1166
1129
1096
1072
1032
1010
Watts RPM
90%
827
828
818
807
792
774
758
741
723
704
683
669
Watts RPM
1667
1760
1910
1984
2040
2078
2115
2153
2181
2199
2227
2241
Cfm
1848
1960
2036
2073
2111
2148
2186
2205
2233
2252
2271
2290
Cfm
100%
993
1274
1260
1236
1219
1196
1167
1131
1111
1076
1051
1023
736
775
865
903
919
922
917
904
888
873
846
830
1296
1282
1276
1265
1246
1228
1202
1170
1140
1118
1080
1058
Watts RPM
100%
834
890
912
916
913
903
886
874
851
834
813
790
Watts RPM
Page 44
---
1.2
58
428
---
---
---
---
---
---
---
---
---
611
563
497
---
---
---
---
---
---
---
76
71
65
---
0.5
---
---
---
1.0
1.1
1.2
---
---
0.8
0.9
---
461
0.4
---
525
0.3
0.6
610
0.2
0.7
695
0.1
---
---
---
---
---
---
---
---
66
61
55
49
---
---
---
---
---
---
---
---
611
560
495
431
External
Static
10%
Press.
in. w.g. Cfm Watts RPM
HORIZONTAL
---
---
1.0
1.1
---
---
0.8
0.9
---
---
0.6
---
0.5
0.7
579
518
0.3
0.4
743
661
0.1
0.2
External
Static
10%
Press.
in. w.g. Cfm Watts RPM
DOWNFLOW
---
---
---
---
---
---
---
216
202
188
175
161
---
---
---
---
---
---
---
768
716
663
610
556
---
---
---
---
---
---
---
822
856
914
973
1051
---
---
---
---
---
---
---
122
115
104
96
88
---
---
---
---
---
---
---
749
695
612
543
470
---
---
---
---
---
---
---
1095
1138
1186
1233
1280
---
---
---
---
---
---
---
202
190
177
166
157
---
---
---
---
---
---
---
772
714
657
607
562
Cfm Watts RPM
---
---
---
---
---
---
---
1074
1126
1179
1231
1284
Cfm Watts RPM
---
---
---
---
---
---
---
719
662
602
556
492
30%
---
---
---
---
---
---
---
138
128
118
110
20%
---
---
---
---
---
---
---
754
818
881
928
100
Cfm Watts RPM
Cfm Watts RPM
992
30%
20%
---
---
1069
1112
1148
1194
1242
1277
1312
1347
1382
1430
Cfm
---
---
1147
1178
1226
1273
1305
1352
1400
1431
1479
1526
Cfm
---
---
1000
972
928
882
850
801
751
716
662
607
---
---
438
424
413
398
382
370
358
345
332
314
---
---
1011
974
943
901
857
823
788
752
715
665
Watts RPM
40%
---
---
374
363
347
330
319
301
283
270
251
231
Watts RPM
40%
---
---
1305
1343
1382
1421
1460
1486
1525
1563
1589
1615
Cfm
---
---
1390
1430
1470
1511
1551
1578
1618
1658
1685
1726
Cfm
---
---
1034
997
957
917
875
847
802
757
726
678
---
1556
1605
1641
1678
1714
1738
1775
1811
1835
1872
1890
Cfm
60%
---
623
601
583
564
544
529
507
483
466
440
427
---
1099
1057
1022
986
948
922
881
837
807
761
737
Watts RPM
---
---
557
542
527
510
494
482
464
446
433
420
---
---
1062
1028
993
957
919
893
853
811
782
753
Watts RPM
50%
---
1474
1510
1546
1582
1618
1642
1678
1702
1738
1762
1798
Cfm
---
688
673
657
641
624
612
593
581
561
547
526
---
1122
1092
1061
1029
995
972
936
911
873
847
807
Watts RPM
60%
Percentage of Total Motor Torque
---
---
487
470
453
434
416
403
383
362
348
327
Watts RPM
50%
Percentage of Total Motor Torque
See page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
---
1652
1687
1727
1757
1787
1827
1847
1877
1907
1927
1957
Cfm
---
1755
1800
1835
1869
1903
1938
1972
1995
2024
2052
2072
Cfm
---
1129
1094
1065
1033
1000
963
925
898
863
827
800
---
822
807
789
775
760
738
726
709
690
677
656
---
1156
1129
1096
1071
1044
1007
987
958
927
905
873
Watts RPM
70%
---
756
737
720
701
681
659
636
619
597
574
557
Watts RPM
70%
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
060/074 DIRECT DRIVE BLOWER - BASE UNIT
BLOWER DATA - DIRECT DRIVE - 5 AND 6 TON - ULTRA HIGH EFFICIENCY
1781
1818
1849
1880
1912
1943
1974
1995
2026
2047
2079
2100
Cfm
1875
1920
1953
1998
2031
2064
2098
2120
2153
2176
2198
2220
Cfm
80%
1181
1151
1125
1088
1058
1026
992
968
930
903
876
848
982
964
948
932
914
896
877
864
844
830
808
793
1217
1188
1162
1135
1107
1079
1050
1030
999
979
947
925
Watts RPM
80%
906
888
873
849
830
808
785
769
743
724
705
686
Watts RPM
1912
1964
1996
2028
2059
2091
2112
2144
2165
2186
2207
2228
Cfm
2036
2089
2131
2163
2195
2227
2248
2280
2301
2322
2344
2362
Cfm
90%
1211
1177
1146
1119
1090
1059
1037
1002
978
952
925
901
1123
1107
1095
1081
1065
1048
1035
1013
998
982
965
947
1245
1212
1191
1167
1142
1115
1096
1067
1046
1024
1002
979
Watts RPM
90%
1063
1043
1022
1004
983
961
945
919
900
881
860
842
Watts RPM
2010
2060
2110
2147
2184
2208
2239
2264
2289
2308
2332
2351
Cfm
2169
2203
2263
2293
2323
2353
2383
2403
2428
2448
2468
2478
Cfm
100%
938
1227
1211
1170
1147
1121
1094
1064
1043
1016
993
969
1221
1235
1238
1233
1223
1213
1197
1182
1164
1148
1126
1107
1258
1243
1221
1200
1176
1158
1133
1111
1088
1069
1043
1022
Watts RPM
100%
1213
1193
1167
1151
1133
1113
1090
1074
1053
1035
1016
996
Watts RPM
BLOWER DATA
BELT DRIVE KIT SPECIFICATIONS - 036-074
Model
No.
036
048
060
Motor HP
No. of
Nominal Maximum Speeds
A01
0.75
0.86
2
low 449-673
high 673-1010
1
1.15
2
---
Drive Kits and RPM Range
A03
A05
-----
A02
---
A06
---
A07
---
---
---
---
-----
low 808-1032
high 1212-1548
---
-----
low 598-897
high 897-1346
---
---
---
low 555-833
high 833-1250
---
---
low 714-953
high 1071-1429
---
---
---
0.75
0.86
2
---
2
2.3
2
---
low 497-673
high 745-1117
---
1
1.15
2
---
---
2
2.3
2
---
---
---
BELT DRIVE KIT SPECIFICATIONS - 072, 074
Model
No.
072
074
Motor HP
Nominal Maximum
1
1.15
2
2.3
No. of
Speeds
1
1
AA01
522-784
---
AA02
--632-875
AA03
--798-1105
FACTORY INSTALLED OPTIONS/FIELD INSTALLED ACCESSORY AIR RESISTANCE - in. w.g.
Wet Indoor Coil
Air
Volume
060, 072,
036
048
cfm
074
036-048 MODELS
800
0.01
0.01
--1000
0.02
0.02
--1200
0.03
0.04
--1400
0.04
0.05
--1600
0.05
0.06
--1800
0.06
0.07
--2000
0.08
0.09
--060-074 MODELS
1000
----0.02
1200
----0.04
1400
----0.05
1600
----0.07
1800
----0.08
2000
----0.10
2200
----0.11
2400
----0.13
2600
----0.15
2800
----0.16
3000
----0.18
Humiditrol
Dehumidification
Coil
Gas Heating
Medium
High Heat
Heat
Filters
MERV 8
MERV
13
0.00
0.00
0.01
0.02
0.03
0.04
0.04
0.02
0.02
0.02
0.02
0.03
0.04
0.04
0.02
0.02
0.02
0.03
0.04
0.05
0.06
0.04
0.04
0.04
0.04
0.04
0.05
0.05
0.04
0.04
0.04
0.04
0.04
0.04
0.05
0.05
0.07
0.07
0.07
0.07
0.07
0.08
0.00
0.00
0.01
0.02
0.02
0.03
0.04
0.04
0.05
0.05
0.06
0.02
0.02
0.02
0.03
0.03
0.04
0.04
0.05
0.05
0.06
0.07
0.02
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.04
0.04
0.04
0.04
0.05
0.05
0.05
0.05
0.06
0.06
0.06
0.03
0.03
0.04
0.04
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.07
0.07
0.07
0.07
0.07
0.08
0.08
0.08
0.08
0.08
POWER EXHAUST FAN PERFORMANCE
Return Air System Static
Pressure
in. w.g.
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
Economizer
Air Volume Exhausted
cfm
2000
1990
1924
1810
1664
1507
1350
1210
Page 45
TABLE 9
MANUFACTURER'S DRIVE COMPONENT NUMBERS
DRIVE COMPONENTS
Blower Pulley
Motor Pulley
Drive No.
bELT
Supplier No.
OEM Part No.
Supplier No.
OEM Part No.
Supplier No.
OEM Part No.
A01
1VP34x7/8
31K6901
AK54 x 1
100244-19
A40
100245-17
A02
1VP34x7/8
31K6901
AK49 x 1
100244-18
A39
100245-16
A03
1VP34x7/8
31K6901
AK44 x 1
100244-16
A39
100245-16
A05
1VP34x7/8
31K6901
AK41 x 1
100244-15
A39
100245-16
A06
1VP44x7/8
P-8-1488
AK51 x 1
18L2201
A41
100245-18
A07
1VP50x7/8
P-8-2187
AK54 x 1
100244-19
AX43
73K8201
AA01
1VP34x7/8
31K6901
AK69 x 1
37L4701
AX51
13H0101
AA02
1VP40x7/8
79J0301
BK80H1
100788-03
A53
P-8-4951
AA03
1VP40x7/8
79J0301
AK59 x 1
31K6801
A50
100245-29
AA04
1VP44x7/8
P-8-1488
AK59 x 1
31K6801
AX51
13H0101
A01T2
1VP34x7/8
31K6901
AK54 x 1
100244-19
A41
100245-18
A02T2
1VP34x7/8
31K6901
AK49 x 1
100244-18
A40
100245-17
A03T2
1VP34x7/8
31K6901
AK44 x 1
100244-16
A40
100245-17
A05T2
1VP34x7/8
31K6901
AK41 x 1
100244-15
A41
100245-18
A06T2
1VP44x7/8
P-8-1488
AK51 x 1
18L2201
A41
100245-18
A07T2
1VP50x7/8
P-8-2187
AK54 x 1
100244-19
AX43
73K8201
AA01T2
1VP34x7/8
31K6901
AK69 x 1
37L4701
A50
100245-29
AA02T2
1VP40x7/8
79J0301
BK80H*
100788-03
A52
100245-30
AA03T2
1VP40x7/8
79J0301
AK59 x 1
31K6801
A49
100245-32
AA04T2
1VP44x7/8
P-8-1488
AK59 x 1
31K6801
A50
100245-29
NOTES: 1 Requires split taper bushing, Browning no. H1; OEM no. 100073-04 2 Includes tension assembly, Fenner no. FS0590; OEM no. 101994-02
cooling demand (Y1) will energize the economizer.
An increased cooling demand (Y2) will energize
the compressor and low speed blower along with
the condenser fan. When outdoor air is not
acceptable unit will operate as though no
economizer is installed.
Cooling Start-Up
A-Operation
1- Standard and High Efficiency Units Initiate first and second stage cooling demands
according to instructions provided with Unit
Controller Installation and Setup Guide. Use the
menu navigation arrows and select button; see
SERVICE > TEST
Ultra High Efficiency Units Initiate full load cooling operation using the following
menu path:
SERVICE > TEST > COOL > COOL 3
(COOL 4 on 074U units)
Note - Refer to Cooling Operation section for ultra high
efficiency unit operation in zone sensor mode.
3- Units contain one refrigerant circuit or stage.
4- Unit is charged with R-410A refrigerant. See unit
rating plate for correct amount of charge.
5- Refer to Cooling Operation and Adjustment section for
proper method to check refrigerant charge.
B-Single Speed, Two-Step and Three Phase Scroll
Compressor Voltage Phasing
Note - Does not apply to ultra high efficiency units.
Three phase scroll compressors must be phased
sequentially to ensure correct compressor and blower
rotation and operation. Compressor and blower are wired
in phase at the factory. Power wires are color-coded as
follows: line 1-red, line 2-yellow, line 3-blue.
2- No Economizer Installed in Unit A first-stage cooling demand (Y1) will energize the
compressor and blower in low speed along with the
1condenser fan. An increased cooling demand (Y2)
will increase the blower and compressor to high
2speed.
Units Equipped With Economizer When outdoor air is acceptable, a first-stage
Page 46
Observe suction and discharge pressures and
blower rotation on unit start-up.
Suction pressure must drop, discharge pressure
must rise, and blower rotation must match rotation
marking.
LGH/LCH036, 048, 060, 072, 074
Check unit components if there are significant
differences.
If pressure differential is not observed or blower rotation is
not correct:
3- Disconnect all remote electrical power supplies.
4- Reverse any two field-installed wires connected to
the line side of K1 contactor. Do not reverse wires at
blower contactor.
5- Make sure the connections are tight.
Discharge and suction pressures should operate at
their normal start‐up ranges.
3- Measure the outdoor ambient temperature and the
suction pressure. Refer to the appropriate circuit
charging curve to determine a target liquid
temperature.
Note - Pressures are listed for sea level applications.
4- Use the same thermometer to accurately measure the
liquid temperature (in the outdoor section).
C-Refrigerant Charge and Check - All-Aluminum Coil
WARNING-Do not exceed nameplate charge under
any condition.
If measured liquid temperature is higher than
the target liquid temperature, add refrigerant to
the system.
This unit is factory charged and should require no further
adjustment. If the system requires additional refrigerant,
reclaim the charge, evacuate the system, and add
required nameplate charge.
If measured liquid temperature is lower than
the target liquid temperature, recover some
refrigerant from the system.
NOTE - System charging is not recommended below
60F (15C). In temperatures below 60F (15C), the
charge must be weighed into the system.
5- Add or remove charge in increments. Allow the
system to stabilize each time refrigerant is added or
removed.
If weighing facilities are not available, or to check the
charge, use the following procedure:
6- Continue the process until measured liquid
temperature agrees with the target liquid
temperature. Do not go below the target liquid
temperature when adjusting charge. Note that
suction pressure can change as charge is adjusted.
IMPORTANT - Charge unit in standard cooling mode
high stage only.
1- Make sure outdoor coil is clean. Attach gauge
manifolds and operate unit at full CFM in cooling mode
with economizer disabled until system stabilizes
(approximately five minutes). Make sure all outdoor air
dampers are closed.
2- Compare the normal operating pressures (see tables
10 - 17) to the pressures obtained from the gauges.
7- Example LGH/LCH036H: At 95°F outdoor ambient
and a measured suction pressure of 130psig, the
target liquid temperature is 98°F. For a measured
liquid temperature of 106°F, add charge in
increments until measured liquid temperature agrees
with the target liquid temperature.
TABLE 10
LGH/LCH036S NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL
Outdoor Coil Entering Air Temperature
65 °F
75 °F
85 °F
95 °F
105 °F
115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
113
235
117
274
116
329
118
379
121
438
124
497
121
239
122
284
125
327
127
378
129
437
132
506
138
248
141
288
144
329
147
375
151
427
151
497
157
264
160
297
163
339
167
387
172
437
175
492
Page 47
LGH/LCH036, 048, 060, 072, 074
TABLE 11
LGH/LCH036H NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL
Outdoor Coil Entering Air Temperature
65 °F
75 °F
85 °F
95 °F
105 °F
115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
115
242
116
283
119
328
120
382
122
444
124
535
121
245
124
284
126
329
128
379
129
447
131
528
138
255
143
294
146
340
148
389
151
441
152
515
155
267
160
305
165
349
168
399
171
454
175
514
TABLE 12
LGH/LCH048S NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL
Outdoor Coil Entering Air Temperature
65 °F
75 °F
85 °F
95 °F
105 °F
115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
117
249
120
287
122
330
124
381
126
435
129
493
124
253
128
291
131
332
133
386
135
441
138
499
141
272
145
306
149
345
152
393
155
448
157
515
160
300
163
332
167
367
172
415
176
465
179
520
TABLE 13
LGH/LCH048H NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL
Outdoor Coil Entering Air Temperature
65 °F
75 °F
85 °F
95 °F
105 °F
115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
116
251
119
289
121
331
124
377
126
429
129
488
123
256
127
293
130
335
132
382
135
435
137
494
139
277
143
308
148
348
151
395
155
447
158
503
156
306
161
338
165
373
170
416
174
468
178
523
TABLE 14
LGH/LCH060S NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL
Outdoor Coil Entering Air Temperature
65 °F
75 °F
Suct
(psig)
Disc
(psig)
85 °F
Suct
(psig)
Disc
(psig)
95 °F
105 °F
115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
114
249
116
287
119
330
121
376
123
425
127
482
122
250
124
290
127
333
129
379
132
435
135
492
140
258
143
293
145
343
148
392
151
449
154
508
158
274
162
311
166
356
169
398
173
462
175
520
Page 48
LGH/LCH036, 048, 060, 072, 074
TABLE 15
LGH/LCH060H NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL
Outdoor Coil Entering Air Temperature
65 °F
75 °F
85 °F
95 °F
105 °F
115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
113
240
116
285
117
329
119
383
120
454
122
533
122
245
125
285
127
322
129
376
130
431
132
516
141
254
143
293
146
334
149
382
151
436
153
498
159
269
163
305
167
351
169
395
172
448
176
507
TABLE 16
LGH/LCH072H NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL
Outdoor Coil Entering Air Temperature
65 °F
75 °F
85 °F
95 °F
105 °F
115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
113
261
115
300
116
347
118
402
119
492
123
512
122
266
124
307
126
349
126
402
128
467
132
518
140
277
143
316
145
360
147
411
149
472
151
540
159
291
161
329
164
375
168
423
172
478
174
537
TABLE 17
LGH/LCH074H NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL
Outdoor Coil Entering Air Temperature
65 °F
75 °F
85 °F
95 °F
105 °F
115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
112
257
113
298
114
348
116
403
118
476
121
602
120
261
122
301
123
347
124
403
127
466
129
556
136
271
140
310
143
354
145
401
145
460
147
525
154
290
157
327
161
370
165
416
168
468
171
526
Page 49
LGH/LCH036, 048, 060, 072, 074
LGH/LCH036S CHARGING CURVE - ALL-ALUMINUM COIL
Outdoor Temperature (°F)
130
115°
120
105°
110
95°
100
85°
90
75°
80
70
65°
60
110
120
130
140
150
160
170
180
Suction Pressure (psig)
LGH/LCH036H CHARGING CURVE - ALL-ALUMINUM COIL
Outdoor Temperature (°F)
130
115°
120
105°
110
95°
100
85°
90
80
75°
70
65°
60
110
120
130
140
150
160
170
180
Suction Pressure (psig)
Page 50
LGH/LCH036, 048, 060, 072, 074
LGH/LCH048S CHARGING CURVE - ALL-ALUMINUM COIL
Outdoor Temperature (°F)
130
115°
120
105°
110
95°
100
90
85°
80
75°
70
65°
60
110
120
130
140
150
Suction Pressure (psig)
160
170
180
LGH/LCH048H CHARGING CURVE - ALL-ALUMINUM COIL
Outdoor Temperature (°F)
130
115°
120
105°
110
95°
100
90
85°
80
75°
70
65°
60
110
120
130
140
150
Suction Pressure (psig)
Page 51
LGH/LCH036, 048, 060, 072, 074
160
170
180
LGH/LCH060S CHARGING CURVE - ALL-ALUMINUM COIL
130
Outdoor Temperature (°F)
115°
120
105°
110
95°
100
85°
90
75°
80
65°
70
60
110
120
130
140
150
160
170
180
Suction Pressure (psig)
LGH/LCH060H CHARGING CURVE - ALL-ALUMINUM COIL
130
Outdoor Temperature (°F)
115°
120
105°
110
95°
100
85°
90
75°
80
65°
70
60
110
120
130
140
150
160
170
180
Suction Pressure (psig)
Page 52
LGH/LCH036, 048, 060, 072, 074
LGH/LCH072H CHARGING CURVE - ALL-ALUMINUM COIL
Outdoor Temperature (°F)
130
115°
120
105°
110
95°
100
85°
90
75°
80
65°
70
60
110
120
130
140
150
Suction Pressure (psig)
160
170
180
LGH/LCH074H CHARGING CURVE - ALL-ALUMINUM COIL
Outdoor Temperature (°F)
130
115°
120
105°
110
95°
100
85°
90
75°
80
70
65°
60
110
120
130
140
150
Suction Pressure (psig)
Page 53
LGH/LCH036, 048, 060, 072, 074
160
170
180
D-Refrigerant Charge and Check - Fin/Tube Coil
WARNING-Do not exceed nameplate charge under
any condition.
This unit is factory charged and should require no further
adjustment. If the system requires additional refrigerant,
reclaim the charge, evacuate the system, and add
required nameplate charge.
NOTE - System charging is not recommended below
60°F (15°C). In temperatures below 60°F (15°C) , the
charge must be weighed into the system.
If weighing facilities are not available, or to check the
charge, use the following procedure:
1- Attach gauge manifolds and operate unit in cooling
mode on HIGH SPEED with economizer disabled
until system stabilizes (approximately five minutes).
Make sure outdoor air dampers are closed.
Note - On Ultra high efficiency units, use Unit Controller
menu path SERVICE > TEST > COOL > COOL 3 for 036,
048 and 060U units. Use COOL 4 for 074U units.
2- Use a thermometer to accurately measure the
outdoor ambient temperature.
3- Apply the outdoor temperature to tables 18 through
36 to determine normal operating pressures.
Pressures are listed for sea level applications at 80°F
dry bulb and 67°F wet bulb return air.
3- The approach method is not valid for grossly over or
undercharged systems. Use tables 18 through 36 as
a guide for typical operating pressures.
Subcooling Method - Ultra High Efficiency Units
1- Attach gauge manifold to the liquid line. With the
economizer disabled, operate the unit in cooling
mode at high speed using the following Unit
Controller menu path:
SERVICE > TEST > COOL > COOL 3
(COOL 4 on 074U units)
2- Use the liquid line pressure and a PT chart to
determine the saturated liquid temperature.
3- Measure the liquid line temperature at the condenser
outlet.
Subcooling Temperature = Liquid Saturated
Temperature Minus Liquid Temperature.
4- The subcooling temperature should be as shown in
figure 38. A subcooling temperature greater than this
value indicates an overcharge. A subcooling
temperature less than this value indicates an
undercharge.
4- Compare the normal operating pressures to the
pressures obtained from the gauges. Minor variations in
these pressures may be expected due to differences in
installations. Significant differences could mean that the
system is not properly charged or that a problem exists
with some component in the system. Correct any
system problems before proceeding.
5- If discharge pressure is high, remove refrigerant from
the system. If discharge pressure is low, add
refrigerant to the system.
Add or remove charge in increments.
Allow the system to stabilize each time
refrigerant is added or removed.
6- Use one of the following charge verification methods
along with the normal operating pressures to confirm
readings.
E-Charge Verification - Fin/Tube Coil - AHRI TESTING
Approach Method - Standard and High Efficiency Units
1- Using the same thermometer, compare liquid
temperature to outdoor ambient temperature.
Approach Temperature = Liquid temperature (at
condenser outlet) minus ambient temperature.
2- Approach temperature should match values in table 37.
An approach temperature greater than value shown
indicates an undercharge. An approach temperature
less than value shown indicates an overcharge.
Page 54
TABLE 18
LG/LC 036S NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
655 F
755 F
855 F
955 F
1055 F
1155 F
Discharge
+10 psig
267
305
350
398
451
507
Suction + 5
psig
138
140
142
146
147
150
TABLE 19
LG/LC 036S REHEAT NORMAL OPERATING
PRESSURES
Outdoor Coil
Entering Air Temp
655 F
755 F
855 F
955 F
1055 F
1155 F
Discharge
+10 psig
261
300
342
387
437
490
Suction + 5
psig
138
141
144
148
150
153
TABLE 20
LG/LC 036H NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
655 F
755 F
855 F
955 F
1055 F
1155 F
Discharge
+10 psig
262
293
345
389
439
493
Suction + 5
psig
142
145
147
149
152
155
LGH/LCH036, 048, 060, 072, 074
TABLE 21
LG/LC 036H REHEAT NORMAL OPERATING
PRESSURES
TABLE 26
LG/LC 048H REHEAT NORMAL OPERATING
PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
655 F
755 F
855 F
955 F
1055 F
1155 F
262
299
342
388
437
491
139
141
144
147
150
153
655 F
755 F
855 F
955 F
1055 F
1155 F
261
299
342
389
441
497
138
142
144
147
150
153
TABLE 22
LG/LC 036U NORMAL OPERATING PRESSURES
TABLE 27
LG/LC 048U NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
655 F
755 F
855 F
955 F
1055 F
1155 F
238
277
317
363
416
474
146
149
150
151
151
154
655 F
755 F
855 F
955 F
1055 F
1155 F
252
289
332
379
428
484
142
145
147
149
151
153
TABLE 23
LG/LC 048S NORMAL OPERATING PRESSURES
TABLE 28
LG/LC 060S NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
655 F
755 F
855 F
955 F
1055 F
1155 F
259
299
343
390
442
497
129
138
146
148
157
160
655 F
755 F
855 F
955 F
1055 F
1155 F
264
303
346
395
445
500
136
138
140
142
145
148
TABLE 24
LG/LC 048S REHEAT NORMAL OPERATING
PRESSURES
TABLE 29
LG/LC 060S REHEAT NORMAL OPERATING
PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
655 F
755 F
855 F
955 F
1055 F
1155 F
259
298
340
388
439
495
139
143
145
148
151
154
655 F
755 F
855 F
955 F
1055 F
1155 F
267
307
350
399
451
507
135
137
139
142
144
147
TABLE 25
LG/LC 048H NORMAL OPERATING PRESSURES
TABLE 30
LG/LC 060H NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
655 F
755 F
855 F
955 F
1055 F
1155 F
256
299
342
388
437
493
122
132
139
145
150
153
655 F
755 F
855 F
955 F
1055 F
1155 F
253
291
334
380
427
479
136
137
139
142
145
148
Page 55
LGH/LCH036, 048, 060, 072, 074
TABLE 31
LG/LC 060H REHEAT NORMAL OPERATING
PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
655 F
755 F
855 F
955 F
1055 F
1155 F
256
295
337
384
432
488
136
138
140
143
146
147
TABLE 32
LG/LC 060U NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
Suction + 5
psig
655 F
755 F
855 F
955 F
1055 F
1155 F
261
299
341
388
441
499
135
138
140
142
144
146
TABLE 36
LG/LC 074U NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
655 F
755 F
855 F
955 F
1055 F
1155 F
Discharge
+10 psig
Suction + 5
psig
655 F
755 F
855 F
955 F
1055 F
1155 F
271
312
357
405
458
515
136
139
141
144
147
151
Suction + 5
psig
128
134
137
140
142
144
TABLE 37
APPROACH TEMPERATURE
LGH/LCH Unit
Liquid Temp. Minus
Ambient Temp.
036S & H Std.; 036S & H Reheat;
048H Std.; 060S & H Reheat;
060H Std.; 072H Std.; 074H Std.
6°F + 1 (3.3°C + 0.5)
048H Reheat; 060S Std.
072H Reheat; 074H Reheat
7°F + 1 (3.9°C + 0.5)
048S Std.; 060S Std.
8°F + 1 (4.4°C + 0.5)
048S Reheat
9°F + 1 (5.0°C + 0.5)
TABLE 38
SUBCOOLING TEMPERATURE
TABLE 33
LG/LC 072H NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
268
307
351
399
450
505
LGH/LCH Unit
Liquid Saturated Temp. Minus
Liquid Temperature
036U; 060U
15°F + 1 (8.3°C + 0.5)
048U
15.5°F + 1 (8.6°C + 0.5)
074U
16°F + 1 (8.8°C + 0.5)
F-Compressor Controls
See unit wiring diagram to determine which controls are
used on each unit. Optional controls are identified on
wiring diagrams by arrows at junction points.
TABLE 34
1- High Pressure Switch (S4)
LG/LC 072H REHEAT NORMAL OPERATING
The compressor circuit is protected by a high
PRESSURES
pressure switch which opens at 640 psig + 10 psig
Outdoor Coil
Discharge
Suction + 5
Entering Air Temp
+10 psig
psig
(4413 kPa + 70 kPa) and automatically resets at 475
655 F
272
137
psig + 20 psig (3275kPa + 138 kPa).
755 F
312
139
2- Low Pressure Switch (S87)
855 F
356
140
The compressor circuit is protected by a loss of
955 F
403
142
charge switch. Switch opens at 40 psig + 5 psig (276
1055 F
453
145
+ 34 kPa) and automatically resets at 90 psig + 5
1155 F
507
148
psig (621 kPa + 34 kPa).
3- Freezestat (S49)
TABLE 35
The compressor is protected by a freezestat located
LG/LC 074H STD. & REHEAT NORMAL OPERATING
on the indoor coil. The freezestat opens at 29F+3
PRESSURES
(-2C+2) and closes at 58F+4 (14C+2).
Outdoor Coil
Discharge
Suction + 5
Entering Air Temp
+10 psig
psig
4- Compressor Crankcase Heater (HR1)
655 F
287
139
Crankcase heater must be energized at all times to
755 F
325
141
prevent compressor damage due to refrigerant
855 F
366
143
migration. Energize crankcase heater 24 hours before
955 F
411
146
unit start-up by setting thermostat so that there is no
1055 F
460
149
cooling demand (to prevent compressor from cycling)
1155 F
513
152
and apply power to unit.
Page 56
LGH/LCH036, 048, 060, 072, 074
5- Low Ambient Pressure Switch (S11)
Switch maintains adequate discharge pressure by
de-energizing condenser fan when liquid pressure
falls below 240 psig +10 (1655 kPa+69). S11 is
installed in the liquid line. Switch closes to energize
condenser fan when pressure rises to 450 psig +10
(3103kPa + 69).
6- Discharge Line Thermostat (S40)
3 through 5 Ton Non-Ultra Units Only
Switch opens when discharge line temperature
reaches 94F+5 (34C+3) and closes when
temperature falls below 74F+5 (23C+3). Prevents
crankcase heater operation in warm weather.
7- High Ambient Pressure Switch (S16)
Switch improves high ambient operation by
activating the TXV assist circuit. Switch closes at
550psig + 10 (3792kPa + 70kPa) and automatically
resets at 400 PSIG (2758kPa + 70kPa).
B-Three-Stage Thermostat OR Room Sensor
1-Economizer With Outdoor Air Suitable
Y1 Demand Compressors Off
Blower Cooling Low
Dampers modulate
Y2 Demand Compressors Off
Blower Cooling High
Dampers Modulate
Note - If dampers are at maximum open for three minutes,
compressor 1 is energized and blower stays on cooling high.
Y3 Demand Compressors 1 and 2 On
Blower High
Dampers Maximum Open
Cooling Operation
036S/H, 048S/H, 060S/H, 074H UNITS
This is a summary of cooling operation. Refer to the
sequence of operation provided in the Engineering
Handbook or Service Manual for more detail.
Note - During a dehumidification demand the blower
operates at the highest speed. Free cooling is locked-out
during reheat operation. Refer to hot gas reheat start-up
and operation section for details.
072H UNITS
This is a summary of cooling operation. Refer to the
sequence of operation provided in the Engineering
Handbook or Service Manual for more detail.
A-Two-Stage Thermostat
Note - During a dehumidification demand the blower
operates at the highest speed. Free cooling is locked-out
during reheat operation. Refer to hot gas reheat start-up
and operation section for details.
1-Economizer With Outdoor Air Suitable
A-Two-Stage Thermostat
Y1 Demand Compressor Off
Blower Low
Dampers modulate
1-Economizer With Outdoor Air Suitable
Y1 Demand Compressors Off
Blower Cooling On
Dampers modulate
Y2 Demand Compressor Off
Blower High
Dampers Modulate
Note - If dampers are at maximum open for three
minutes, compressor is energized.
Note - If dampers are at maximum open for three
minutes, compressor is energized at high speed and
blower stays on cooling high.
Y2 Demand Compressors On
Blower Cooling On
Dampers Modulate
2-No Economizer or Outdoor Air Not Suitable
Y1 Demand Compressor Low
Blower Low
Dampers Minimum Position
2-No Economizer or Outdoor Air Not Suitable
Y1 Demand Compressor 1 On
Blower Cooling On
Dampers Minimum Position
Y2 Demand Compressor High
Blower High
Dampers Minimum Position
Page 57
LGH/LCH036, 048, 060, 072, 074
C-Zone Sensor
1-Economizer With Outdoor Air Suitable
036U, 048U, 060U, 074U UNITS
A-Two-Stage Thermostat
1-Economizer With Outdoor Air Suitable
Y1 Demand Compressor Off
Blower Low
Dampers modulate
Y2 Demand Compressor Low
Blower Low
Dampers Full Open
Note - Compressor is energized after damper has been
at full open for three minutes.
2-No Economizer or Outdoor Air Not Suitable
Y1 Demand Compressor Low
Blower Low
Dampers Minimum Position
D-Verify Proper Operation In Zone Sensor Mode
1-Economizer With Outdoor Air Suitable
Y1 Demand Compressors Off
Blower Low
Dampers Modulate
Y2 Demand Compressor Low
Blower Low
Dampers Full Open
Note - Compressor is energized after damper has been
at full open for three minutes.
Y3 Demand Compressor High
Blower High
Dampers Full Open
Y2 Demand Compressor High
Blower High
Dampers Minimum Position
Y3 Demand Compressor High
Blower High
Dampers Minimum Position
Note - Free cooling is locked out when a dehumidification
demand is received. The unit operates in
dehumidification mode as if the outdoor air is not suitable.
Any Demand Compressor Variable
Blower Variable
Damper Minimum Position
B-Three-Stage Thermostat OR Room Sensor
Y1 Demand Compressor Low
Blower Low
Dampers Minimum Position
Note - Compressor is energized after damper has been at
full open for three minutes.
2-No Economizer or Outdoor Air Not Suitable
Y2 Demand Compressor High
Blower High
Dampers Minimum Position
2-No Economizer or Outdoor Air Not Suitable
Low Cooling Demand Compressor Off
Blower Variable
Dampers Modulate
High Cooling Demand Compressor Variable
Blower Variable
Dampers Full Open
The Unit Controller (A55) communicates the appropriate
frequency (speed) to the compressor inverter (A192) to
match the cooling load. Because the cooling load varies,
the Unit Controller provides a test mode to initiate a
predictable compressor speed. Use the following Unit
Controller menu paths to change the compressor speed
and verify discharge and suction pressures are changing
appropriately. When the compressor speed increases,
the discharge pressure will increase proportionately and
the suction pressure will decrease proportionately. When
the compressor speed decreases, the discharge
pressure will decrease proportionately and the suction
pressure will increase proportionately.
036, 048, 060U
High speed compressor operation:
SERVICE > TEST > COOL > COOL 3
Intermediate speed compressor operation:
SERVICE > TEST > COOL > COOL 2
Low speed compressor operation
SERVICE > TEST > COOL > COOL 1
074U Only
High speed compressor operation:
SERVICE > TEST > COOL > COOL 4
First intermediate speed compressor operation:
SERVICE > TEST > COOL > COOL 3
Second intermediate speed compressor operation:
SERVICE > TEST > COOL > COOL 2
Low speed compressor operation
SERVICE > TEST > COOL > COOL 1
Page 58
LGH/LCH036, 048, 060, 072, 074
This unit is equipped with an automatic spark ignition
system. There is no pilot. In case of a safety shutdown,
move thermostat switch to OFF and return the thermostat
switch to HEAT to reset ignition control.
Gas Heat Start-Up (Gas Units)
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING
A-Placing Unit In Operation
Electric shock hazard. Can cause injury
or death. Do not use this unit if any part
has been under water. Immediately call
a qualified service technician to inspect
the unit and to replace any part of the
control system and any gas control
which has been under water.
WARNING
Danger of explosion and fire. Can cause
injury or product or property damage.
You must follow these instructions
exactly.
Gas Valve Operation (figure 25 and 26)
1- Set thermostat to lowest setting.
WARNING
2- Turn off all electrical power to appliance.
Danger of explosion. Can cause injury
or product or property damage. If over­
heating occurs or if gas supply fails to
shut off, shut off the manual gas valve
to the appliance before shutting off
electrical supply.
3- This appliance is equipped with an ignition device
which automatically lights the burner. Do not try to
light the burner by hand.
4- Open or remove the control access panel.
HONEYWELL VR8215S GAS VALVE
Single-Stage
MANIFOLD
MANIFOLD
PRESSURE
ADJUSTMENT
SCREW
WARNING
PRESSURE
OUTLET
Electric shock hazard. Can cause
injury or death. Before attempting to
perform any service or maintenance,
turn the electrical power to unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.
WARNING
SMOKE POTENTIAL
The heat exchanger in this unit could be a source of
smoke on initial firing. Take precautions with re­
spect to building occupants and property. Vent ini­
tial supply air outside when possible.
INLET
PRESSURE
PORT
BEFORE LIGHTING smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
Gas valve switch shown in ON position.
FIGURE 25
WHITE RODGERS 36J54 GAS VALVE
Two-Stage
MANIFOLD
PRESSURE TAP
HIGH FIRE
ADJUSTMENT
The gas valve may be equipped with either a gas control
lever or gas control knob. Use only your hand to push
the lever or turn the gas control knob. Never use tools. If
the the lever will not move or the knob will not push in or
turn by hand, do not try to repair it. Call a qualified
service technician. Force or attempted repair may
result in a fire or explosion.
WARNING
Danger of explosion. Can cause injury or
death. Do not attempt to light manually.
Unit has a direct spark ignition system.
Page 59
LGH/LCH036, 048, 060, 072, 074
INLET
LOW FIRE
PRESSURE
ADJUSTMENT
TAP
Gas valve switch is shown in OFF position.
FIGURE 26
5- Move gas valve switch to OFF. See figure 25 or 26.
6- Wait five (5) minutes to clear out any gas. If you then
smell gas, STOP! Immediately call your
gas supplier from a neighbor's phone. Follow the gas
supplier's instructions. If you do not smell gas, go to
the next step.
7- Move gas valve switch to ON. See figure 25 or 26.
Heating Operation and Adjustments
(Gas Units)
A-Heating Sequence of Operation
Single- and Two-Stage
1- On a heating demand the combustion air inducer
starts immediately.
2- Combustion air pressure switch proves inducer
operation. After a 30-second pre-purge, power is
allowed to ignition control. Switch is factory set and
requires no adjustment.
8- Close or replace the control access panel.
9- Turn on all electrical power to appliance.
10- Set thermostat to desired setting.
NOTE - When unit is initially started, steps 1 through 9
may need to be repeated to purge air from gas line.
11- The ignition sequence will start.
12- If the furnace does not light the first time (gas line not
fully purged), it will attempt up to two more ignitions
before locking out.
3- Spark ignitor energizes and gas valve solenoid
opens.
4- Spark ignites gas, ignition sensor proves the flame
and combustion continues.
5- If flame is not detected after 8 seconds, the ignition
control will repeat steps 3 and 4 two more times. The
ignition control will wait 5 minutes before the ignition
attempt recycles.
Four-Stage
13- If lockout occurs, repeat steps 1 through 10.
14- If the appliance will not operate, follow the
instructions “Turning Off Gas to Appliance” and call
your service technician or gas supplier.
Turning Off Gas to Unit
1- If using an electromechanical thermostat, set to the
lowest setting.
2- Before performing any service, turn off all electrical
power to the appliance.
1- On a heating demand, the combustion air inducer
starts immediately.
2- Combustion air blower (CAB) prove switch allows
inducer operation. Power is then supplied to the A3
ignition control, enabling 1st-stage gas heat. The
CAB prove switch is factory-set and requires no
adjustment.
3- After a 30-second pre-purge, the A3 spark ignitor
energizes and gas valve 1 (GV1) solenoid opens.
4- Spark ignites gas on the first two burners, flame
sensor 1 (FS1) proves the flame, and combustion
continues. Timing circuits energize 1st-stage, low fire,
for approximately 10 minutes.
3- Open or remove the control access panel.
4- Move gas valve switch to OFF.
5- Close or replace the control access panel.
5- If flame is not detected after 8 seconds, the ignition
control will repeat steps 3 and 4 two more times. The
ignition control will wait 5 minutes before the ignition
attempt recycles.
WARNING
Danger of explosion. Can cause injury or
death. Do not attempt to light manually.
Unit has a direct spark ignition system.
6- Before the 10-minute delay applied to 1st stage
expires, the timing circuits enable A12 ignition
control.
7- After a 30-second pre-purge, the A12 spark ignitor
energizes and gas valve 3 (GV3) solenoid opens.
8- Spark ignites gas on the remaining five burners,
flame senor 2 (FS2) proves the flame, and
combustion continues. Timing circuits de-activate
1st-stage after approximately 10 minutes. The
remaining 5 burners are energized in 2nd-stage,
low fire.
Page 60
LGH/LCH036, 048, 060, 072, 074
9- While a W1 demand is present, 2nd-stage will operate
indefinitely.
10- Once a W2 demand is applied with 2nd-stage active,
power is supplied to the A3 ignition control.
11- After a 30-second pre-purge, the A3 spark ignitor
energizes and gas valve 1 (GV1) solenoid opens.
12- Both 1st- and 2nd -stage active at the same time
represents 3rd-stage. Timing circuits enable
3rd-stage, low fire, for approximately 10 minutes.
13- At the conclusion of the 10-minute time delay, timing
circuits activate the CAB high speed and high fire for
both gas valves; 4th-stage is energized.
14- If, at any time, the W2 demand is reduced to a W1
demand, the cycle restarts at step 4. Since the first
two tubes are already firing, the pre-purge delay and
gas ignition are not applicable.
Indicates
Steady On Power applied. Control OK.
Ignition lockout from too many trials.
4 Flashes
Ignition lockout from too many flame
losses within single call for heat.
5 Flashes
Control hardware fault detected.
Advanced Air Flow Control Start-Up
High efficiency three-, four- and five-ton units equipped
with a direct drive blower and optional economizer allows
the installer to directly enter the design specified supply
air (blower) and outdoor air volume (economizer
minimum position) parameters without the need to
manually take measurements and adjust settings. The
system monitors supply air volume and outside air
volume and also has customizable diagnostics.
The economizer is equipped with a PT5 pressure
transducer which provides feedback for damper
minimum position. See figure 27 for PT5 location. Refer to
the economizer installation instructions and Unit
Controller manual for additional economizer set-up.
Steady Off No power or control hardware fault.
3 Flashes
Optional electric heat will stage on and cycle with
thermostat demand. See electric heat wiring diagram on
unit for sequence of operation.
Note - Unit Controller configuration I.D. 1 character 7 is
factory-set to either S or L for the unit to operate in
Advanced Air Flow Control mode. When character 7 is set
to N or U, the Unit Controller will stage the indoor blower
speed but it won't control the damper minimum position.
B-Ignition Control Diagnostic LEDs
TABLE 39
IGNITION CONTROL HEARTBEAT LED STATUS
LED
Flashes
Electric Heat Start-Up (LCH Units)
Note - Modulation of dampers for free cooling does not
change.
C-Limit Controls
A­Design Specifications
Limit controls are factory-set and are not adjustable. On
single- and two-stage units, the primary limit is located to
the right of the combustion air inducer. See figure 36. On
four-stage units there are two primary limits; one is
located to the right of the combustion air inducer and the
other is located to the left of the combustion air inducer.
Use table 40 to fill in the field-provided,
design-specified supply air CFM and minimum required
outdoor/fresh air CFM.
TABLE 40
FIELD-PROVIDED DESIGN SPECIFICATIONS
D-Heating Adjustment
Main burners are factory-set and do not require adjustment.
The following manifold pressures are listed on the gas valve.
Natural Gas Units - Low Fire - 2.0” w.c.
Natural Gas Units - High Fire - 3.5” w.c.
LP Gas Units - Low Fire - 5.9” w.c.
LP Gas Units - High Fire - 10.5” w.c.
Supply Air CFM
Heating
Cooling High
Cooling Low
Ventilation
Economizer Minimum Position
Outdoor Airflow
Page 61
LGH/LCH036, 048, 060, 072, 074
CFM
CFM
CFM
CFM
CFM
B­Enter Supply Air CFM Into Unit Controller
Use the following menu path to enter each supply air CFM
into the Unit Controller. Make sure supply air CFM is
within limitations shown in table 41. Refer to the Unit
Controller manual provided with unit.
SETTING > RTU OPTIONS > BLOWER > SPEEDS
In the SPEEDS sub-menu, enter CFM values for HEAT,
COOLING HIGH, COOLING LOW and VENTILATION.
Use the down, up and save push buttons below the
display to enter each value.
After the speed CFM are saved, the Unit Controller will
cycle to BLOWER CALIBRATION.
CALIBRATION. Push SAVE to start calibration. The
blower calibration status is displayed as a % complete.
Upon successful completion, the Unit Controller will
display CALIBRATION SUCCESS and go back to the
blower calibration screen. Press the MAIN MENU button
to go to the main menu and press the BACK button to go
to the status screen.
If only the CFM values are updated, use the down and up
arrow buttons to select “CALIBRATION DONE”. Push
SAVE to enter the updated values. This selection will not
initiate calibration, resulting in less setup time. Press the
MAIN MENU button to go to the main menu and press the
BACK button to go to the status screen.
PT5 PRESSURE TRANSDUCER
C­Enter Outdoor Airflow Design Specifications Into
Unit Controller
ECONOMIZER
Use the following menu path to enter the outdoor airflow
CFM (replaces minimum damper position set point) into
the Unit Controller. Make sure outdoor airflow CFM is
within limitations shown in table 41. Refer to the Unit
Controller manual provided with unit.
PRESSURE
TRANSDUCER
SETTINGS > RTU OPTIONS > DAMPER
Press the SAVE button to cycle through the sub-menu
until the OUTDOOR AIRFLOW input screen is displayed.
Enter the value and press SAVE.
Press the MAIN MENU button to go to the main menu and
press the BACK button to go to the status screen.
D­Operation
1- After calibration, the indoor blower will supply the
CFM specified based on the thermostat demand
signal received by the Unit Controller:
FIGURE 27
CAUTION
G – Ventilation CFM
The BLOWER CALIBRATION process starts the in­
door blower at operational speeds and moves the
economizer damper blades. Before starting this pro­
cess, replace any access panels and close all unit
doors except compressor compartment door.
Blower calibration is required only on units that are newly
installed or if there is a change in the duct work or air filters
after installation. After the new CFM values are entered,
use the down and up arrow buttons to select START
W – Heating CFM
Y1 – Cooling Low CFM
Y2 – Cooling High CFM
2- The Unit Controller, using input from PT5 and the
entered outdoor air flow CFM, will open the fresh
air dampers to minimum position. In addition, the
Unit Controller must have an occupied (OCP)
thermostat demand.
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LGH/LCH036, 048, 060, 072, 074
TABLE 41
MINIMUM / MAXIMUM CFM
LGH/LCH036-060H Unit Parameter Settings
LCH/LGH Default Factory Settings
Parameter Name
036H4E
048H4E
060H4E
COOLING HI SPEED / HEATING MAXIMUM (480 CFM/TON)
1440
1920
2400
COOLING HI SPEED MINIMUM (280 CFM/TON)
840
1120
1400
COOLING LOW SPEED MINIMUM (220 CFM/TON)
660
880
1100
GAS HEAT - STANDARD - MINIMUM CFM
970
970
970
GAS HEAT - MEDIUM - MINIMUM CFM
1120
1120
1120
GAS HEAT - HIGH - MINIMUM CFM
1310
1310
1310
ELECTRIC HEAT - MINIMUM CFM
1080
1280
1600
VENTILATION MINIMUM (150 CFM/TON)
450
600
750
450
600
750
SETUP > TEST & BALANCE > BLOWER
SETUP > TEST & BALANCE > DAMPER
OUTDOOR AIRFLOW CFM MAXIMUM CFM
SETTINGS > RTU OPTIONS > EDIT PARAMETER = 12
In order for the SMOKE CFM change to take effect, go to SETUP > TEST & BALANCE > BLOWER and run the the wizard. Performing this
task will recalculate the output to the desired CFM. No adjustments are required during this procedure.
MSAV SMOKE CFM MAXIMUM
1440
1920
2400
Installer: Configuration ID 1, position 7 needs to be set to either S or L. Circle applicable unit model number and record any CFM changes under
“Field Set CFM Value” column. Settings need to be recorded by installer for use when Unit Controller is replaced or reprogrammed.
Page 63
LGH/LCH036, 048, 060, 072, 074
Reheat Setpoint
SCR Electric Heat Controller (LCH Units)
Optional factory-installed SCR (A38) will provide small
amounts of power to the electric heat elements to
efficiently maintain warm duct air temperatures when
there is no heating demand. The SCR maintains duct
air temperature based on input from a field-provided
and installed thermostat (A104) and duct sensor
(RT20). SCR is located in the compressor section on
the left wall. Use only with a thermostat or specified
DDC control system.
Use the instructions provided with the thermostat to set
DIP switches as follows: S1 On, S2 Off, S3 Off. Use the
instructions provided with the duct sensor to install sensor
away from electric element radiant heat and in a location
where discharge air is a mixed average temperature.
Reheat is factory-set to energize when indoor relative
humidity rises above 60% (default). The reheat setpoint
can be adjusted by changing Unit Controller Settings Control menu. A setting of 100% will operate reheat from
an energy management system digital output. The reheat
setpoint can also be adjusted using an optional Network
Control Panel (NCP).
Reheat will terminate when the indoor relative humidity
falls 3% (57% default) or the digital output de-energizes.
The reheat deadband can be adjusted at Settings Control menu.
Check-Out
Test reheat operation using the following procedure.
1- Make sure reheat is wired as shown in wiring section.
Once power is supplied to unit, zero SCR as follows:
2- Make sure unit is in local thermostat mode.
1- Adjust thermostat (A104) to minimum position.
2- Use a small screwdriver to slowly turn the ZERO
potentiometer on the SCR until the LED turns solid red.
3- Very slowly adjust the potentiometer the opposite
direction until the LED turns off.
3- Use Unit Controller key pad to elect SERVICE >
TEST > DEHUMIDIFIER.
The blower and compressor (reheat) should be
operating. DEHUMIDIFIER 1 ON will be appear on the
Unit Controller display.
4- Press BACK on the Unit Controller display to stop the
testing mode.
Hot Gas Reheat Start-Up And Operation
General
Compressor (reheat) and blower should de-energize.
Hot gas reheat units, available on standard and high
efficiency units only, provide a dehumidifying mode of
operation. These units contain a reheat coil adjacent
to and downstream of the evaporator coil. Reheat coil
solenoid valve, L14, routes hot discharge gas from the
compressor to the reheat coil. Return air pulled across
the evaporator coil is cooled and dehumidified; the
reheat coil adds heat to supply air. See figure 28 for
reheat refrigerant routing and figure 29 for standard
cooling refrigerant routing.
L14 Reheat Coil Solenoid Valve
Default Reheat Operation
During reheat mode free cooling is locked out.
No Y1 demand but a call for dehumidification:
Compressor is operating, blower is on, and the reheat
valve is energized.
Y1 demand:
Compressor is operating, blower is on, and the reheat
valve is energized.
Y2 demand:
When Unit Controller input (Unit Controller J298-5 or
J299-8)
indicates
room
conditions
require
dehumidification, L14 reheat valve is energized (Unit
Controller P269-3) and refrigerant is routed to the
reheat coil.
Compressor is operating, blower is on, and the reheat
valve is de-energized.
Page 64
LGH/LCH036, 048, 060, 072, 074
REHEAT MODE REFRIGERANT ROUTING
RETURN
AIR
EVAPORATOR
COIL
OUTDOOR
AIR
EXPANSION
VALVE
REHEAT
COIL
SUPPLY
AIR
COMPRESSOR
CONDENSER
COIL
CHECK
VALVE
REHEAT
VALVE
FIGURE 28
COOLING MODE REFRIGERANT ROUTING
RETURN
AIR
EVAPORATOR
COIL
OUTDOOR
AIR
EXPANSION
VALVE
REHEAT
COIL
SUPPLY
AIR
COMPRESSOR
CHECK
VALVE
REHEAT
VALVE
FIGURE 29
Page 65
LGH/LCH036, 048, 060, 072, 074
CONDENSER
COIL
Service
REMOVE FILTERS
The unit should be inspected once a year by a qualified
service technician.
CAUTION
Label all wires prior to disconnection when servic­
ing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
PULL TO
REMOVE
FILTERS
WARNING
The State of California has determined that this
product may contain or produce a chemical or
chemicals, in very low doses, which may cause se­
rious illness or death. It may also cause cancer,
birth defects, or reproductive harm.
FIGURE 30
B-Lubrication
A-Filters
Units are equipped with temporary filters which must be
replaced prior to building occupation. See table 42 for
correct filter size. Refer to local codes or appropriate
jurisdiction for approved filters.
WARNING
Units are shipped from the factory with temporary
filters. Replace filters before building is occupied.
Damage to unit could result if filters are not re­
placed with approved filters. Refer to appropriate
codes.
Approved filters should be checked monthly and
replaced when necessary. Take note of air flow direction
marking on filter frame when reinstalling filters. See
figure 30.
TABLE 42
UNIT FILTERS
Unit
All motors are lubricated at the factory. No further
lubrication is required.
C-Burners (Gas Units)
Periodically examine burner flames for proper
appearance during the heating season. Before each
heating season examine the burners for any deposits or
blockage which may have occurred.
Clean burners as follows:
1- Turn off both electrical power and gas supply to unit.
2- Remove blower access panel.
3- Remove top burner box panel.
4- Remove screws securing burners to burner support
and lift the individual burners or the entire burner
assembly from the orifices. See figure 31 or 32. Clean
as necessary.
5- Locate the ignitor under the right burner. Check
ignitor spark gap with appropriately sized twist drills
or feeler gauges. See figure 33.
6- Replace burners and screws securing burner. See
figure 34 or 35.
Qty Filter Size - inches (mm)
036S, H; 048S, H
4
16 X 20 X 2 (406 X 508 X 51)
036U; 048U;
060S, H, U; 072H, 074U
4
20 X 20 X 2 (508 X 508 X 51)
WARNING
Danger of explosion. Can cause injury or
death. Do not overtighten main burner
mounting screws. Snug tighten only.
NOTE-Filters must be U.L.C. certified or equivalent for
use in Canada.
7- Replace access panel.
Page 66
LGH/LCH036, 048, 060, 072, 074
IGNITOR
BURNER BOX ASSEMBLY
Single- and Two-Stage
SPARK GAP
SHOULD BE 1/8”
(3mm)
REMOVE INDIVIDUAL BURNERS ON
OLDER UNITS; REMOVE THE ENTIRE
BURNER ASSEMBLY ON NEWER UNITS.
FLAME
SENSOR
FIGURE 33
8- Restore electrical power and gas supply. Follow
lighting instructions attached to unit and use
inspection port in access panel to check flame.
BURNER ORIENTATION
One- and Two-Stage Heat
BURNERS
150,000 BTUH - 7 BURNERS
GAS MANIFOLD
IGNITOR
GAS VALVE
SENSOR
IGNITOR
FIGURE 31
108,000 BTUH - 5 BURNERS
BURNER BOX ASSEMBLY
Four-Stage
SENSOR
REMOVE INDIVIDUAL BURNERS ON
OLDER UNITS; REMOVE THE ENTIRE
BURNER ASSEMBLY ON NEWER UNITS.
IGNITOR
65,000 BTUH - 3 BURNERS
GAS VALVE
GV1
SENSOR IGNITOR
FIGURE 34
BURNER ORIENTATION
Four-Stage Heat
SENSORS
BURNERS
GAS
MANIFOLD
GAS VALVE
GV3
IGNITORS
FIGURE 35
FIGURE 32
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LGH/LCH036, 048, 060, 072, 074
D-Combustion Air Inducer (Gas Units)
7- Replace mullion.
A combustion air proving switch checks combustion air
inducer operation before allowing power to the gas
controller. Gas controller will not operate if inducer is
obstructed.
8- Clean combustion air inlet louvers on blower access
panel using a small brush.
Under normal operating conditions, the combustion air
inducer wheel should be checked and cleaned prior to the
heating season. However, it should be examined
periodically during the heating season to establish an
ideal cleaning schedule.
E-Flue Box (Gas Units)
Clean combustion air inducer as follows:
Remove flue box cover only when necessary for
equipment repair. Clean inside of flue box cover and heat
exchanger tubes with a wire brush when flue box cover
has to be removed. Install a new flue box cover gasket
and replace cover. Make sure edges around flue box
cover are tightly sealed.
1- Shut off power supply and gas to unit.
F-Evaporator Coil
2- Remove the mullion on the right side of the heat
section.
3- Disconnect pressure switch
combustion air inducer port.
air
tubing
from
4- Remove and retain screws securing combustion
air inducer to flue box. Remove vent connector.
See figure 36.
5- Clean inducer wheel blades with a small brush and
wipe off any dust from housing. Take care not to
damage exposed fan blades. Clean accumulated
dust from front of flue box cover.
6- Return combustion air inducer motor and vent
connector to original location and secure with
retained screws. It is recommended that gaskets be
replaced during reassembly.
HEAT EXCHANGER ASSEMBLY
Single- and Two-Stage Shown
G-Condenser Coil
All-Aluminum Coils Clean condenser coil annually with water and inspect
monthly during the cooling season.
Clean the all-aluminum coil by spraying the coil steadily
and uniformly from top to bottom. Do not exceed 900 psi
or a 45 angle; nozzle must be at least 12 inches from the
coil face. Take care not to fracture the braze between the
fins and refrigerant tubes. Reduce pressure and work
cautiously to prevent damage.
Fin/Tube Coils Clean condenser coil annually with detergent or
commercial coil cleaner and inspect monthly during the
cooling season.
HEAT
EXCHANGER
TUBE
COMBUSTION
AIR INDUCER
Condenser coils are made of single and two formed slabs.
On units with two slabs, dirt and debris may become
trapped between the slabs. To clean between slabs,
carefully separate coil slabs and wash them thoroughly.
See figure 37. Flush coils with water following cleaning.
FLUE BOX
COVER
PRIMARY
LIMIT
VENT
CONNECTOR
Note - Remove all screws and gaskets prior to cleaning
procedure and replace upon completion.
H-Supply Air Blower Wheel
Annually inspect supply air blower wheel for accumulated
dirt or dust. Turn off power before attempting to remove
access panel or to clean blower wheel.
BURNER
ROLLOUT
SWITCH
Inspect and clean coil at beginning of each cooling season.
Clean using mild detergent or commercial coil cleaner.
Flush coil and condensate drain with water taking care not
to get insulation, filters and return air ducts wet.
GAS VALVE
FIGURE 36
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LGH/LCH036, 048, 060, 072, 074
CLEAN CONDENSER COIL - UNITS WITH FIN/TUBE COILS
TOP VIEW
ENDPLATE IS SECURED
TO MULLION
SUPPLY
AIR
BLOWER
1-
Remove unit top panel and condenser section access
panel.
2-
Remove screws securing coil end plate to mullion.
3-
Remove wire ties connecting coils slabs and separate
slabs 3-4” (76-102mm).
4-
Clean coils with detergent or commercial coil cleaner.
5-
Rinse thoroughly with water and reassemble. Use
field-provided wire ties to connect coil slabs.
CONDENSER
COILS
CONDENSER ACCESS PANEL
FIGURE 37
TABLE 45
580734
Factory Unit Controller Settings
Use the Unit Controller to adjust parameters; menu paths
are shown in each table. Refer to the Unit Controller
manual provided with each unit.
Tables 43 through 46 show factory settings (in degrees, %
of fan CFM, etc.). Record adjusted settings on the label
located inside the compressor access panel.
When field installing optional kits and accessories, the
Unit Controller must be configured to identify the option
before it will function. Refer to figures 38 and 39 to
determine whether the Unit Controller configuration I.D.
must change. To configure the option, use MAIN MENU >
SETUP > INSTALL menu path. Press SAVE until
CONFIGURATION ID 1 or 2 appears depending on the
option installed. Change the appropriate character in the
configuration I.D. For example, when an economizer is
installed using a single enthalpy sensor, change
configuration I.D. 1, the second character, to “S”.
TABLE 43
580730
Units With Hot Gas Reheat
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
Para­
meter
105
Factory
Setting
Field
Setting
Description
Hot Gas Reheat Option 6: Reheat is
only possible if blower is energized dur­
ing occupied periods. Controlled by RH
sensor (A91) connected to input
A55_P298_5 and set point set at para­
meter 106 (default 60%).
6
TABLE 46
580735
Units with BACnet Module (Target) Settings
Use menu SETUP > NETWORK INTEGRATION. Set “BACNET”
and network address.
BACNET MAC ADDRESS:
Para­
meter
Factory
Setting
Setting
Description
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
120
Sets the compressor minimum run
time to 2 minutes.
106
99
Set reheat SP from connected sensor
to 99% to basically disable. Reheat
will be controlled over by BAS. Only
applies to units with the reheat option.
TABLE 44
580732
111
3
Thermostat with three cooling stages.
Units With Room Sensor, CPC/LSE Gateway Settings
117
0
DCV max. open damper. 0=controlled
by network.
Use menu SETUP > NETWORK INTEGRATION. Set “L CONNEC­
TION” and network address.
153
60
Time delay between heating and cool­
ing mode.
Units With BACnet Module Settings
91
Use menu SETUP > NETWORK INTEGRATION. Set “BACNET” and
network address.
BACNET MAC ADDRESS:
LCONN ADDRESS:
Page 69
LGH/LCH036, 048, 060, 072, 074
Configuration ID 1
1 2 3 4 5 6 7 8
[8] Outdoor Air CFM
Control
Humiditrol [1]
Not Installed = N
N = Not applicable (for future
use)
Humiditrol Installed = H
Unconfigured = U
[7] Advance Air Flow
Control
Economizer [2]
Not Installed = N
N = Not Installed
Motorized Outdoor Air
Damper Only = M
S = Installed with Standard
Economizer
Economizer - Temperature = T
L = Installed with High Performance
Economizer
Economizer Global = G
Economizer - Single
Enthalpy = S
U = Unconfigured
Economizer - Dual Enthalpy = D
[6] Blower Variable
Frequency Drive Bypass
Unconfigured = U
N = Not Installed
Power Exhaust [3]
A = Automatic Bypass
Not Installed = N
M = Manual Bypass
Single-Stage = S
U = Unconfigured
Dual-Stage = D
[5] Network Module
Unconfigured = U
N = Not Installed
Power Exhaust Control 4]
B = BACnet
Not Installed = N
L = LonTalk (Lennox)
Damper Position = A
FIGURE 38
Page 70
LGH/LCH036, 048, 060, 072, 074
Configuration ID 2
1 2 3 4 5 6 7 8 9
Air Flow Proving [1]
Switch (S52)
[9] Electric Heat
(Field-Installed)
Not Installed = N
Installed on M3 = C
N = Not Installed
Installed on DDC
Controller = D
Y = Installed
[8] Load Shedding
Dirty Filter Switch (S27) [2]
N = Not Installed
Not Installed = N
G = Global (P297 - pin 9)
Installed on M3 = C
L = Installed on DI-2
U = Installed on DI-3
Overflow Switch [3]
(S149 / S179)
Not Installed = N
[7] Zone Bypass Damper
Installed on DI-2 = 2
N = Not Installed
Installed on DI-3 = 3
Y = Installed
Motor Overload [4]
Switch (S42)
[6] Ultra Violet Lamp
N = Not Installed
Not Installed = N
Y = Installed
Installed on DI-2 = 2
Installed on DI-3 = 3
[5] Phase / Voltage Detection *
N = Not Installed
1 = Enabled Internal (Lennox)
* When Phase / Voltage detection monitoring is enabled on a three-phase
system and configured incorrectly will result in the system going into de­
mand hold status and then restart after three minutes.
FIGURE 39
Page 71
LGH/LCH036, 048, 060, 072, 074
2 = External (A42) Phase Detection
on DI-2
3 = External (A42) Phase Detection
on DI-3
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