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48HJ004-007
Single-Package Rooftop Heating/Cooling
Standard and Low NOx Units
Installation, Start-Up and
Service Instructions
CONTENTS
SAFETY CONSIDERATIONS ......................
Page
1
INSTALLATION ................................
Step 1 -- Provide Unit Support ...................
• ROOF CURB
• SLAB MOUNT
• ALTERNATE UNIT SUPPORT
Step 2 -- Field Fabricate Ductwork ...............
Step 3 -- Install External Trap for
Condensate Drain ..............................
1-36
1
2
4
Step 4 -- Rig and Place Unit .....................
• POSITIONING
Step 5 -- Install Flue Hood .......................
Step 6 -- Install Gas Piping ......................
Step 7 -- Make Electrical Connections ...........
• FIELD POWER SUPPLY
• FIELD CONTROL WIRING
• HEAT ANTICIPATOR SETTINGS
4
Step 8 -- Adjust Factory-Installed Options ......
13
• COBRA
TM
ENERGY RECOVERY UNITS
• HUMIDI-MIZER
TM
ADAPTIVE
DEHUMIDIFICATION SYSTEM
• MANUAL OUTDOOR-AIR DAMPER
• CONVENIENCE OUTLET
• NOVAR CONTROLS
• PREMIERLINK
TM
CONTROL
• OPTIONAL ECONOMISER IV AND ECONOMISER2
• ECONOMISER IV STANDARD SENSORS
• ECONOMISER IV CONTROL MODES
Step 9 -- Adjust Evaporator-Fan Speed .........
PRE-START-UP ..................................
25
37
5
5
5
START-UP ....................................
SERVICE .....................................
TROUBLESHOOTING .........................
INDEX ...........................................
START-UP CHECKLIST ........................
37-42
42-48
49-53
54
CL-I
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electric_d components. Only trained and qualifed service personnel should install, repair, or service ai>conditioning equipment.
Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel.
When working on ai>conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations. Have fire extinguishers avaihtble for all brazing operations.
Before performing service or maintenance operations on unit, turn off main power switch to unit and install lockout tag. Ensure electrical service to rooftop unit agrees with voltage and amperage listed on the unit rating phtte. Electricgd shock could cause personal injury.
Disconnect gas piping from unit when leak testing at pressure greater than 1/2psig. Pressures greater than ]h psig will cause gas valve damage resulting in haz_u'dous condition. If gas valve is subjected to pressure greater titan
1h psig, it must be replaced before use. When
_ressure testing field-supplied gas piping at
_ressures of I/2 psig or less, a unit connected o such piping must be isohtted by manu_dly closing the gas valve(s).
INSTALLATION
Unit is shipped in the vertical dischtuge configuration. To convert to horizontal discharge application, remove duct opening coveLs. Using the same screws, install covers on duct openings in basepan of unit with insulation-side down. Seals around openings must be tight. See Fig. 1.
Step 1 -- Provide Unit Support
ROOF CURB -Assemble and install accessory roof curb in accor&mce with instructions shipped with curb. See Fig. 2. Install insulation, cant strips, roofing felt, and counter flashing as shown.
Ductwork must be attached to curb, not to the unit.
If electric control power or gas service is to be routed through the basepan, attach the accessory thin-the-bottom service connections to the basepan in accordance with the accessory installation instructions.
Connections must be inst_dled before unit is set on roof curb.
critical for a watertight seal. Install gasket supplied with the
IMPORTANT: The gasketing of the unit to the roof curb is ] result in air leaks and poor unit performance.
I
Curb should be level. Unit leveling tolerances are shown in
Fig. 3. This is necessary for unit drain to lhnction properly.
Refer to Accessory Roof Curb [nstalhttion Instructions for additional infomtation as required.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480013-01 Printed in U,S.A.
Form 48HJ-33SI Pg 1 9-05 Replaces: 48HJ-29SI
SLAB MOUNT (Horizontal Units Only) -Provide a level concrete slab that extends a minimum of 6 in. beyond unit cabinet. Install a gravel apron in front of condenser-coil air inlet to plevent grass and foliage from obstructing airflow.
NOTE: Horizontal units may be installed on a roof curb if required.
ALTERNATE UNIT SUPPORT -- When the curb or adapter cannot be used, suppoll unit with sleeper rails using unit curb or adapter suppoll area. If sleeper rails cannot be used, suppoll the long sides of the unit with a minimum of 3 equally spaced
4-in. x 4-in. pads on each side.
Step 2 -Field Fabricate Ductwork -Secure _fll ducts to roof curb and building structure on veltical discharge units. Do not connect ductwork to unit. For horizontal applications, field-supplied isolation flanges should be attached to horizont_d discharge openings and _11ductwork should be secured to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accor&mce with applicable codes.
Ducts passing through an unconditioned space must be insulated and covered with a vapor barriel:
If a plenum return is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes.
A minimum clearance is not required around ductwork.
Cabinet return-air static pressure (a negative condition) shall not exceed 0.35 in. wg with economizer or 0.45 in. wg without economizeE
These units are designed for a minimum continuous returnair temperature in heating of 50 F (di_ bulb), or an intermittent operation down to 45 F (di_ bulb), such as when used with a night setback thermostat.
To operate at lower return-air temperatures, a field-supplied outdoor air temperature control must be used to initiate both stages of heat when the temperature is below 45 F. Indoor comfort may be compromised when these lower air temperatures are used with insufficient heating temperature rise.
REMOVABLE HORIZONTAL
RETURN DUCT OPENING COVER '_k k
\
\
\
\
\
\
_ REMOVABLE HORIZONTAL
SUPPLY DUCT OPENING COVER
Fig. 1 -- Horizontal Conversion Panels
CONNECTOR
PKG. ACCY.
CRBTMPWROO1A01
CRBTMPWROO2A01
CRBTMPWROO3A01
CRBTMPWROO4A01
1'-911/16"
[406]
C
B C
I
I
'_4I
C jl /_ _"
/ '
",\
J
D ALT
DRAIN
HOLE
",,\
1
\\
\1
I
_ I i I
IX o' 3"
1753
O"
[76]
3"
I
I
I
I
I
I
I
I
I
_B
SUPPLY AIR
OPENING
1" 1 7/16"
E341 ]
+
O" O 7116" nl]
(DOLT HEAD5)
O' 0 7/16"
HEADS)
1" 7
O'
E7B]
3'
[914]
O"
C
Y iI
GAS
3/41'
[19] NPT
POWER
3/4" [19] NPT
11/4" [31.7]
3/4"1119]NPT
11/4" [31.7]
CONTROL ACCESSORY
POWER
1/21'
[12.7]
1/2"
[12.7]
I
I
B GASKET
(SUPPLIED
(FIELD
WITH CURS)
DUCT
DUPPLIED)
2"
I
7 5/D"
[803]
-1
O" 0 7116"
[II]
(BOLT HEADD)
O' 0 7/15"
(BOLT n. _A
ROOF CURB
ACCESSORY
CRRFCURBOOIA01
CRRFCURB002A01
A UNIT
SIZE
48HJ ]
I 2'-0" I 004-007
NOTES:
1. Roof curb accessory is shipped disassembled.
2. Insulated panels.
3. Dimensions in [ ] are in millimeters.
4. Roof curb: galvanized steel.
5. Attach ductwork to curb (flanges of duct rest on curb).
6. Service clearance: 4 ft on each side.
7.
I_ Direction of airflow.
8. Connector packages CRBTMPWROO1A01 and 002A01 are for thru-the-curb type gas.
Packages CRBTMPWROO3A01 and 004A01 are for thru-the-bottom type gas connections.
O" 7/16"
TYPICAL (4) SIDES
(FIELD
FLASHING
SUPPLIED)
(FIELD
5TRIP
SUPPLIED)
(FIELD
MATERIAL
5UPPL[ED)
#
#
#
I
#
_
RIGID
(FIELD
INSULATION
DUPPLIED)
OPENING
SERVICE.
FOR
O'
BADEPAN
(SEE NOTE
ENTRY
#D)
2 1/2" o.
(APPROXD
0 o
..
SECTION "C C"
SCALE 1:4
O' 3 1/4"
[83]_ O" 9"
DEE NOTE #2
O' 0 1/4"[73
8
SUPPLY AIR
VIEW
RETURN AIR••
"A-A"
E
#
•
$
I
I
GAD
(SEE
5ERVICE
PLATE
1' 4 13/15"
[427]
(INSIDE)
" 6"
[152]
:IND[DE)
2 3/8 °
[Bl]
HEAD OF DOLT TO BE ON
INDIDE OF FLANGE
I
I
I
I
I
E1705]
1/8"
NOTE: CAMBRIDGEPORT
FASTENING
ALTERNATE
"SURE LOCK" CORNER
DEVICE IS ACCEPTABLE
CONSTRUCTION.
Fig. 2 -- Roof Curb Details
B
UM ALLOWABLE
DIFFERENCE (in.)
OlOCl C
1.0
Fig. 3 -- Unit Leveling Tolerances
Step 3 -Install External Trap for Condensate
Drain
-The unit's 3h-in. condensate drain connections am located on the bottom and side of file unit.
Unit discharge connections do not determine the use of drain connections; either &ain connection can be used with vertic_d or horizontal applications.
When using the standard side &ain connection, ensure the plug (Red) in the ;alternate bottom connection is tight before installing the unit.
To use the bottom &ain connection for a roof curb installation, relocate the factory-inst;dled plug (Red) from the bottom connection to the side connection.
Tile center drain plug looks like a star connection, however it can be removed with a m/2-in.
socket drive extension.
See Fig. 4. The piping for the condensate &ain find external trap can be completed after the unit is in place.
All units must have fin external trap for condensate drainage. Install a trap 4-in. deep and protect against freeze-up.
If drain line is installed downstream from the external trap, pitch the line away from the unit fit 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection (3/4 in.). See Fig. 5.
Step 4 -Rig and Place Unit-Inspect unit for transportation dmnage, and tile any claim with transpollation agency.
Keep unit upright and do not drop. Spreader bars are not required if top crating is left on unit, and rollers may be used to move unit across a roof. Level by using unit fl_lme as a reference.
See Table 1 and Fig. 6 for additional information.
Operating weight is shown in Table 1 and Fig. 6.
Lifting holes m'e provided in base rfdls as shown in Fig. 7.
Refer to rigging instructions on unit.
All panels must be in place when rigging and lifting.
POSITIONING -Maintain clefuance around find above unit to provide minimum distance from combustible materials, proper airflow, and service access. See Fig. 7.
Position unit on roof curb so that file following clearances are maintained: 1/4 in. clearance between the roof curb find the base rail inside the front and refu'. 0.0 in. clearance between the roof curb and the base rail inside on the duct end of the unit. This will result in the distance between the roof curb and the base rail inside on file condenser end of the unit being approximately equal to Fig. 2, section C-C.
Do not install unit in an indoor location.
Do not locate unit air inlets near exhaust vents or other sources of contmninated air
Be sure flint unit is installed such that snow will not block
the combustion intake or flue outlet.
Unit may be installed directly on wood flooring or on
Class A, B, or C roof-covering material when roof curb is used.
Although unit is weafllerproof, guard against water from higher level runoff and overhangs.
Ix>cate mechanical draft system flue assembly at least 48 in. from an adjacent building or combustible materiffl. When unit
is located adjacent to public walkways, flue assembly must be fit least 7 fl above grade.
NOTE: When unit is equipped with an accessory flue dischmge deflector, allowable clearance is 18 inches.
Flue gas can deteriorate building materials.
Orient unit such that flue gas will not affect building materials.
Adequate combustion-air space must be provided for proper operation of this equipment.
Be sure that installation complies with all local codes and Section 5.3, Air for Combustion find
Ventilation, NFGC (National Fuel Gas Code), ANSI (American National Standards Institute) Z223.1-1984 find addendum
Z223.1a-1987.
In Canada, installation must be in accordance with the CANI.BI49.1
and CANI.BI49.2
installation codes for gas burning appliances.
Flue vent dischmge must have a minimum horizontal clearance of 4 fl from electric and gas meters, gas regulators, find gas relief equipment.
After unit is in position, remove shipping materials and rigging skids.
HORIZONTAL
DRAIN OUTLET
DRAIN PLUG
NOTE: Drain plug is shown in factory-installed position.
Fig. 4Condensate Drain Pan
\ OPEN 2" MINI
I IIII
VENT / I I IIII
SEE
NOTE
_L_
.,,_ROOF
CURB
NOTE: Trap should be deep enough to offset maximum unit static difference. A 4-in. trap is recommended.
Fig. 5 -Condensate Drain Piping Details
36"- 54"
(914-1371)
POSITION ALL SEAL STRIPS
IN PLACE BEFORE POSITIONING
UNIT ON ROOF CURB,
DUCT END
DETAIL "A"
SEE "A_DETAIL
PLACE UNIT ON CURB AS CLOSE
TO DUCT END AS POSSIBLE
NOTES:
1. Place unit on curb as close as possible to the duct end.
2. Dimension in ( ) is in millimeters.
3. Hook rigging shackles through holes in base rail as shown in detail "A." Holes in base rails are centered around the unit center of gravity. Use wooden top skid when rigging to prevent rigging straps from damaging unit.
4. Weights include base unit without economizer.
See Table 1 for unit operating weights with accessory economizer.
6. Weights include base unit without the Humidi-MiZer
TM adaptive dehumidification system. See Table 1 for unit operating weights with the Humidi-MiZer system.
UNIT
48HJ
004
005
006
007
All panels must be in place when rigging.
OPERATING
WEIGHT
Ib
530
540
560
635 kg
240
245
254
288
"A" "g" "C" in.
mm
73.69
1872
73.69
1872
73.69
1872
73.69
1872 in.
mm
35.50 902
35.50 902
35.50 902
35.50 902 in.
mm
33.31
847
33.31
847
33.31
847
33.31
847
Fig. 6 -- Rigging Details
Step 5 -Install Flue Hood -Flue hood is shipped screwed to the burner comp;utment access panel.
Remove from shipping location and, using screws provided, inst;dl flue hood in location shown in Fig. 7 and 8.
For units being installed in California Air Quality Management Districts which require NOx emissions of 40 nanogrmns/ joule or less, a low NOx unit must be installed.
NOTE: Low NOx units are available for 3 to 5 ton units.
Step 6 -Install Gas Piping -Unit is equipped for use with type of gas shown on nameplate.
Refer to local building codes, or in the absence of local codes, to
ANSI Z223.1-1984 and addendum Z223. IA- 1987 entitled
National Fuel Gas Code. In Canada, installation must be in accordance with the CANI .B149.1
and CANI .B149.2
installation codes for gas burning appliances.
For natural gas applications, gas pressure at unit gas connection must not be less than 4 in. wg or greater than 13 in. wg while the unit is operating.
On 48HJ005-007 high-heat units, the gas pressure at unit gas connection must not be less than
5 in. wg or greater than 13 in. wg while the unit is operating.
For propane applications, the gas pressure must not be less than
5 in. wg or greater than 13 in. wg at the unit connection.
Size gas supply piping for 0.5 in. wg maximum pressure drop. Do not use supply pipe sm_dler than unit gas connection.
Support gas piping as shown in the table in Fig. 9. For example, a 3/4-in. gas pipe must have one field-fabricated support bemn every 8 ft. Therefore, an 18-ft long gas pipe would have a minimum of 3 support beams, and a 48-ft long pipe would have a minimum of 6 support beams.
See Fig. 9 for typical pipe guide and locations of extermd manual gas shutoff valve.
NOTE: If accessory thin-the-bottom connections and roof curb are used, refer to the Thin-the-Bottom Accessory Installation
Instructions for information on power wiring and gas connection piping.
The power wiring, control wiring and gas piping can be routed through field-drilled holes in the basepan.
The basepan is speci_dly designed and dimpled for drilling the access connection holes.
When connecting the gas line to the unit gas v_dve, the installer MUST use a backup wrench to prevent damage to the v_dve.
Step 7 -- Make Electrical Connections
Unit cabinet must have an unintenupted, unbroken electric_d ground to minimize the possibility of pel.sonal injury if an electrical fault should occm: This ground may consist of electric_d wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (Natiomd Electrical
Code), ANSI/NFPA (National Fire Protection Association), latest edition, and local electrical codes. Do not use gas piping as an electrical ground Failure to follow this warning could result in the installer being liable for personal injury of others.
FIELD POWER SUPPLY -All units except 208/230-v units are factory wired for the voltage shown on the nameplate.
If the 208/230-v unit is to be connected to a 208-v power supply, the transformer must be rewired by moving the black wire from the 230-v terminal on the transformer and connecting it to the 200-v terminal from the transformel:
Refer to unit label diagram for additional information.
Pigtails me provided for field service.
Use factory-supplied splices or UL (Underwriters' Laboratories) approved copper connectoE
UNIT
48HJ_004
4BHJ_OO5
4BHJ_OO5
4BHJ_O07
STD.
UNIT !CONOMI_ERI_ VERT. ECONIV
WEIGHT
LB KG
WEIGHT
LB KG
W/P.E.
LB
(A) (SI (C) (D)
WEIGHT CORNER WEIGHT CORNER WEIGHT CORNER WEIGHT CORNER WEIGHT
KG LB KG LB KG LB KG LB KG
530 240 50 22,7 go 40,S 127 57,G 122 55,3 138 62.8
143 84,9
FT iN.
2" S 5/16"
"J"
MM
84G.5
540 245
G35 288 152 68.S
147 55.7
1S5 74.8
171 77.5
;
3" 5 5/15"
;
1050
BOTTOM POWER CHART:
THE5E HOLE5 REG'D FOR U5E
WITH ACCE550RY
CRBTMPWROO1A01, 2A01,
PACKAGES
3A01, OR 4A01
THREADED
CONDUIT 5]ZE
WIRE
USE
REQ'D
SIZES
HOLE
(MAX.)
3/4"
1/4"
(003)
1/2"
1/2"
(001,003)
(O02,004)
1/2"FPT
ACC.
24V
7/8"[22.2]
7/B'[22.2]
DOWER_ 1 1/8"[28.4]
DOWER_ 1 3/4"[44,4]
GA5 1 1/4"[31.8]
CONNECTION
1
2"
3/8"
DIA.
DIA.
[51]
SIZES
[3B]
POWER
FIELD
SUPPLY
POWER SUPPLY
KNOCK OUT
HOLE
NOTES=
1.
DIMENSIONS
2.
_CENTER
IN [ ]
OF GRAVITY.
ARE IN MILLIMETERS.
3.
_ DIRECTION OF AIR FLOW.
4.
S.
a.
b.
c.
d.
ON VERTICAL
TO ACCESSORY
UNITS FIELD
HORIZONTAL
BE ATTACHED
DISCHARGE UNITS,
ROOF CURB ONLY.
SUPPLIED FLANGES
DISCHARGE OPENINGS,
TO THE FLANGES.
DUCTWORK TO
FOR HORIZONTAL
SHOULD
AND
BE ATTACHED
DISCHARGE
BE ATTACHED
ALL DUCTWORK
USING CURB)
CONDENSER
ONE SIDE,
GREATER
OVERHEAD,
OPERATION.
SO
O
COIL,
INCHES.
FOR iNCHES
PROPER
TO
AiR
12 iNCHES
CLEARANCE
THE OTHER.
IS OPTIONAL.
ASSURE
FLOW,
THE
PROPER
3B iNCHES
SIDE GETTING
CONDENSER
TO
SHOULD
CORNER
MINIMUM
PREVAIL):
BETWEEN
35 IN.,18
BOTTOM
CURB)
BOTTOM
CLEARANCE
UNIT,
IN.
OF UNIT
1 INCH.
OF BASE
(LOCAL
FLUE SIDE
WHEN USING
AND
ACCESSORY
TO COMBUSTIBLE
COMBUSTIBLE
FLUE
SURFACES
RAiL TO
CODES OR
COMBUSTIBLE
JURISDICTION
SURFACES
MAY
SURFACES,
DISCHARGE
(WHEN NOT USING
(WHEN
DEFLTR.
NOT
THE
FAN
3" 9"
[1144] e.
BETWEEN
F.
BETWEEN
SIDE,
UNITS,
UNIT
38 IN.
g.
h.
PER
CONTROL
NEC.
BOX SIDE,
AND UNGROUNDED
42
SURFACES,
IN.
PER NEC.
CONTROL BOX
BETWEEN
GROUNDED
HORIZONTAL
ALTERNATE
UNIT AND
SURFACES,
BLOCK OR CONCRETE
CONTROL BOX SIDE,
SUPPLY AND RETURN
CONDENSATE DRAIN
END,
IS USED.
0
WALLS AND OTHER
42 IN.
PER NEC.
INCHES WHEN THE
B.
7.
WITH THE EXCEPTION
COIL
AND c,
AND COMBUSTION
A REMOVABLE
CLEARANCE.
UNITS MAY BE INSTALLED
FROM WOOD OR CLASS A,
IF SET ON BASE RAIL.
OF THE CLEARANCE
SIDE
FENCE
AS
OR
STATED
BARRICADE
FOR THE
REQUIRES
CONDENSER
IN NOTE #Sa, b,
NO
S,
ON COMBUSTIBLE
OR C ROOF
FLOORS
COVERING
MADE
MATERIAL
CORNER
8.
G'[457] THE VERTICAL CENTER
FROM THE BOTTOM
OF GRAVITY
OF THE BASE RAIL.
IS 1'
9 71"7
UP FROM
O' 3 13/1B"
[97]
FACTORY
FLUE HOOD
F [ LTER/ECONOM
REAR
[ ZER ACCESS
ICONDENSER _L
2"11
[BOB]
3" O"
[gl 4]
PANEL_
CONTROL BOX/COMPRESSOR/
BURNER ACCESS
PANEL
4 c ft
EVAPORATOR
COIL RETURN AIR OPENING
' E/' I----i
ALTI CONDENSATE
OPENING
1S/1B"
[4S]
O" 3 SW1B"
[99.4]
FRONT
O" 3 1/16"
[78]_
G" 1 11/1G"
[1872]
I
SUPPLY
L__IJ
AIR
I
I
_[81]
1" S 1/4" [438]
FOR ECONOM]$ER [V
_O' S3Zl@"
[81]
O' I0 1S/1B"
[278]
(DISPOSABLE
_.____j
RETURN AIR
O" S 3/8" l _°'2Ss_G'EBs
1'53/4"[451]
O" S 7/1B"
O' O 3/8"
[13B]
_
RIGHT SIDE
[137]
_
"C" l' S SW1B"
[439.7]
SUPPLY AIR
FILTERS)
BLOCKOFF
PANEL
O' 7 1/4"
_[1B4]
O" lO 13/15"
1" S
1/4" h h
DO
[Sl4]
O' 4 1/1B"
2" 1 ll/1G"
[852.5]
_ r---1
VIEW 5 5
[470]
1 'G 1/2"_
//
,£4
//4/`
O" 0 7/IS'Ell.l]
_ ECONOM[$ER
L
IV
W/ POWER EXHAUST
IllS.B] TYP
8/1 G"
[104B]
EG5_ SIDE l" 4 5/16"
[414.5]
O' B S/B"
[168.23
BISGONNEGTLooATION
2" 5 3/8
[74B.
2]
_0"
INDOOR FAN MOTOR
SLOWER ACCESS PANEL
3 5/IB"
Egl.O] 1" 2 7/8"
[375.B]
_®1
"FORK TRUCK SLOTSo, 2 1/4"DIA
[573
FRONT lli
III SUPPLY
III HORIZONTAL
IlL
AIR x N h
Nil
II
Ill
OPENING
HOR[
ZONTAL
7" h h h h h l'
OUTSIDE
O" 0
8 1/4"
AIR
7/8" j
O' 5 [14B]3/4" OUT_J_L'y[BSB'B]lAIR15/1B"
OF PANEL
R IGHT S IDE
RETURN AIR
_0' S ll/1B"
[144.3]
BAROMETRIC RELIEF
E STD.
CONDENSATE DRAIN
DISCHARGE
[5143
Fig. 7 -- Base Unit Dimensions
i=
9" MINIMUM
X k -41
\
FLUE OPENING INTAKE LOUVERS
Fig. 8-Flue Hood Details
4
FROM GAS METER
LEGEND
NFGC -National Fuel Gas Code
*Field supplied,
NOTE: Follow all local codes.
SUPPORT*
SPACING OF SUPPORTS
STEEL PIPE
NOMINAL DIAMETER (in.)
1/2 a/4or I
1V4 or larger
SPACING OF SUPPORTS
X DIMENSION
6
8
10
(ft)
Fig. 9 -- Gas Piping Guide (With Accessory
Thru-the-Curb Service Connections)
When installing units, provide a disconnect per NEC.
All field wiring must comply with NEC and local requirements.
Install conduit through side panel openings indicated in
Fig. 7. Route power lines through connector to terminal connections as shown in Fig. 10.
Voltage to compressor terminals during operation must be within voltage range indicated on unit nmneplate (also see
Tables 2A-2D).
On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in Tables 2A-2D, Note 3 to determine the percent voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause
&image to electric_d components.
Such operation would inv_di-
&_te any applicable Carrier warranty.
NOTE: If accessory thin-the-bottom connections and roof curb tu'e used, refer to the Thru-the-Bottom Accessory Installation
Instructions for information on power wiring and gas connection piping.
The power wiring, control wiring and gas piping can be routed through field-drilled holes in the baseptm.
The basepan is specially designed and dimpled for drilling the access connection holes. See Fig. 2.
FIELD CONTROL WIRING -Install a Carrier-approved accessory thermostat assembly according to inst_dlation instructions included with the accessory.
Ix)cate thermostat assembly on a solid wail in the conditioned space to sense average temperature in accor&mce with thermostat installation instructions.
Route thermostat cable or equivalent single leads of colored wire from subbase termin_ds through connector on unit to lowvoltage connections (shown in Fig. 11A and 11B).
Connect thermostat wires to matching screw termimds of low-voltage connection bozud. See Fig. 11A and I lB.
NOTE: For wire runs up to 50 fl, use no. 18 AWG (American
Wire Gage) insulated wire (35 C minimum).
For 50 to 75 It, use no. 16 AWG insulated wire (35 C minimum).
For over
75 ft, use no. 14 AWG insulated wire (35 C minimum).
All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat.
Pass the control wires through the hole provided in the corner post; then feed wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig.
12. The raceway provides the UL required cle_u'ance between high and low-voltage wiring.
HEAT ANTICIPATOR SETTINGS -- Set heat anticipator settings at 0.14 amp for first stage and 0.14 for second stage heating, when available.
Table 1 -- Physical Data
BASE UNIT 48
NOMINAL CAPACITY
OPERATING WEIGHT (Ib)
Unit
Humidi-MiZer
TM
Adaptive Dehumidification
EconoMi$er IV
Roof Curb
COMPRESSOR ouontity
Oil (oz)
REFRIGERANT TYPE
Expansion Device
Operating Charge (Ib-oz)
Standard Unit
CONDENSER FAN
Nominal Cfm
Motor Hp...Rpm
Watts Input (Total)
CONDENSER COIL
System
Adaptive Dehumidification System
HJE/F/H/K]M/NO04
3
530
15
50
115
42
180
1 I
3500
V4 ,825
EVAPORATOR COIL
Standard Unit
Rows.,,Finslin,
Total Face Area (sq ft)
Unit with Humidi-Mizer
Rows,..Finslin,
Adaptive Dehumidification
Total Face Area (sq ft)
EVAPORATOR FAN
°uantity..,Size
Nominal Cfm
(in.)
Maximum Continuous Bhp
Motor Frame Size
Fan Rpm Range
Motor Bearing
Nominal Motor Shaft Diameter
Pulley Center
Factory Speed
Type
Maximum Fan Rpm
Motor Pulley Pitch Diameter A/B (in.)
Fan Pulley Pitch Diameter
Belt -- Type,.,Length (in.)
Line Distance
(in,)
Turns from Closed Position
Factory Setting -Full Turns
Setting (rpm)
(in,)
(in.)
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Movable Pulley Maximum Full
Open
System
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Std
Hi-Static
Fan Shaft Diameter at Pulley (in.)
Bhp--
LEGEND
Brake Horsepower
*Single phase/three phase, tlndicates automatic reset,
**60,000 and 72,000 Btuh heat input units have 2 burners, 90,000 and
120,000 Btuh heat input units have 3 burners.
115,000 Btuh heat input units and 150,000 Btuh Heat input units have 3 burners.
l-tAn LP kit is available as an accessory.
Kit may be used at elevations as high as 2000 ft, If an LP kit is used with Low NOx units, the Low N©x baffle must be removed and the units will no longer be classified as Low N©x units.
2._15
5,5
1_,17
3,9
1...10 x 10
1200
1.20
2.40
48
56
680-1044
1075-1455
Ball
2100
1.9/2.9
2.8/3.8
l&
%
4.5
4.5
1 ...A...36
1 _.A_.39
10.0-12.4
65
65
5
6
3
31/2
826
1233
%
HJD/E/F/G/H/K]L/M/NO05
4
540
23
50
115
53
Scroll
1 I
R-22
Acutrol
TM
Metering Device
2...17
3.9
770-1185
1075-1455
Ball
2100
1.9/2.0
2.8/3.8
1/2
5/s
4.0
4.0
1..,A.,.36
1,_A_.39
10.0-12.4
7O
65
5
6
3
31/2
936
1233
5/s
HJD/E/F/G/H/K]L/M/NO06
5
560
25
50
115
50
3.9
Ball
%
5/8
4.0
4.5
75
6O
6
5
3
31/2
5/8
HJD/E/FO07
6
635
29
50
115
1 I 1
I
Propeller
I
3500
V4 ..825
180
4100
V4_1100
320
Enhanced Copper Tubes, Aluminum Lanced Fins
I I
Enhanced Copper Tubes, Aluminum Double-Wavy Fins
2_15
5.5
4_15
5.5
2_.17
Centrifugal Type, Belt Drive
1...10 x 10
1600
1,.,10 x 10
2000
1.20
2,40
48
56
1.30/2.40"
2,90
48/56"
56
1035-1460
1300-1685
2100
2.4/3.4
3.4/4,4
1 ..-4-.40
1,..A-.40
14.7-15.5
1248
1396
I
I
60
4100
V4_1100
320
4_,15
73
2_17
5.2
1..,10 x 10
2400
2,40
2,90
56
56
1119-1585
1300-1685
Ball
2100
2,4/3,4
3,4/3,4
5/8
7&
4.0
4.5
1 ..,A,..38
1..,A_.40
14.7-15.5
95
60
5
5
3
1305
1396
5/8
IIThree-phase standard models have heating inputs as shown, Singlephase standard models have one-stage heating with heating input values as follows:
HJD005-006,HJE004 -72,000 Btuh
HJE005-006,HJF004 -- 115,000 Btuh
HJF005-006 -150,000 Btuh
***California compliant three-phase models.
tttCalifornia SCAQMD compliant low NO× models have combustion products that are controlled to 40 nanograms per joule or less,
Table 1 -- Physical Data (cont)
HJE/F/H/K]M/N004 HJD/E/FIGIHIK/L/M/NO05 BASE UNIT 48
FURNACE SECTION
Rollout Switch Cutout Temp (F)t
Burner Orifice Diameter (in, ..,drill size)**
Natural Gas -- Std
Liquid Propane -- Alttt
HJE.113...33
HJF,113..,33
195
HJH,113-.33
HJK,113-.33
HJM .102,,.38
HJN.102-.38
HJE,089.,.43
HJF,089..,43
HJH,089.,.43
HJK,089-.43
HJM .082,.,45
HJN ,082,,.45
195
HJD.113...33
HJE .113...33
HJF.129-.30
HJG .113...33
HJH.113...33
HJK.129...30
HJL.102...38
HJM ,102,..38
HJN.116...32
HJD.089...43
HJE .089...43
HJF.104...37
HJG .089...45
HJH .089...45
HJK.102...38
HJL.082-.45
HJM .082.,.45
HJN.094...42
HJD/EIF/GIH/K/LIM/NO06
195
HJD.113.-33
HJE .113.-33
HJF.129-.30
HJG .113...33
HJH .113...33
HJK.129.-30
HJL.102.-38
HJM .102...38
HJN.116-.32
HJD.089.-43
HJE .089...43
HJF.104...37
HJG .089...43
HJH .089...43
HJK.104.-37
HJL.082-.45
HJM.082...45
HJN .094.,.42
HJD/E/F007
195
HJD,113-,33
HJE ,113-.33
HJF,129.-30
HJD .089_.43
HJE ,089-.43
HJF.104.-37
Thermostat Heat Anticipator Setting (amps)
208/230/460/575 v
First Stage
Second Stage
Gas Input (Btuh)
First Stage/Second
Efficiency (Steady State) (%)
Temperature
Stage
Rise Range
,14
.14
HJEll50,000/ 72,000
HJFI182,000/115,000
HJH***--/ 72,000
HJK***--/115,000
HJMTTT--/
HJNttt--/
HJE 82,8
HJF80
HJH 82
HJK 80
HJM 80.2
HJN 81
HJE 25-55
HJF 55-85
HJH 25-55
HJK 55-85
60,000
90,000
HJM 20-50
HJN 30-60
Manifold Pressure (in. wg)
Natural Gas -- Std
Liquid Propane -- Alttt
Maximum Static Pressure (in, wg)
Field Gas Connection Size (in.)
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief
Cutout
Reset (Auto.)
LOSS-OF-CHARGE SWITCH/LOW=PRESSURE
SWITCH (Liquid Line) (psig)
Cutout
Reset (Auto.)
FREEZE PROTECTION THERMOSTAT
Opens (F)
Closes (F)
OUTDOOR-AIR INLET SCREENS
RETURN-AIR FILTERS
Quantity...Size
(in.)
LEGEND
Bhp-Brake Horsepower
3.5
3.5
1.0
1/2
*Single phase/three phase.
tlndicates automatic reset.
**60,000 and 72,000 Btuh heat input units have 2 burners.
90,000 and
120,000 Btuh heat input units have 3 burners.
115,000 Btuh heat input units and 150,000 Btuh Heat input units have 3 burners.
ttAn LP kit is available as an accessory.
Kit may be used at elevations as high as 2000 ft. If an LP kit is used with Low NOx units, the Low NOx baffle must be removed and the units will no longer be classified as Low N©x units.
.14
.14
HJDll 50,000/ 72,000
HJEII 82,000/115,000
HJFl1120,000/150,000
HJG***--/ 72,000
HJH*** --/115,000
HJK*** --/150,000
HJLttt
HJMttt--/
HJNttt
--/ 60,000
90,000
--/120,000
HJD 82.8
HJE 81
HJF 80.4
HJG 82
HJH 81
HJK 80
HJL 80.2
HJM 81
HJN 80.7
HJD 25-25
HJE 35-65
HJF 50-80
HJG 25-55
HJH 35-85
HJK 50-80
HJL 20-50
HJM 30-60
HJN 40-70
3.5
3.5
1.0
Cleanable.
2._16x25x2
450 _+50
428
32O
7_+3
22 _+5
30_+5
45_+5
.14
.14
HJDII 50,000/ 72,000
HJEII 82,000/115,000
HJFI1120,000/150,000
HJG***--/ 72,000
HJH*** --/115,000
HJK*** --/150,000
HJLttt--/ 60,000
HJMftt--/ 90,000
HJNttt --/120,000
HJD 82.8
HJE 81
HJF 80.4
HJG 82
HJH 81
HJK 80
HJL 80.2
HJM 81
HJN 80.7
HJD 25-55
HJE 35-65
HJF 50-80
HJG 25-55
HJH 35-65
HJK 50-80
RJL 20-50
HJM 30-60
HJN 40-70
3.5
3.5
1.0
l&
Screen quantity and size varies with option selected.
Throwaway
I
HJD
.14
.14
50,000/ 72,000
HJE 82,000/115,000
HJF 120,000/150,000
HJD 82
HJE 81
HJF 80
HJD 25-55
HJE 35-65
HJF 50-80
3.5
3.5
1.0
1/2
4_.16x
16x2
IIThree-phase standard models have heating inputs as shown.
Singlephase standard models have one-stage heating with heating input values as follows:
HJD005-006,HJE004 -- 72,000 Btuh
HJE005-006,HJF004-
HJF005-006-
115,000 Btuh
150,000 Btuh
***California compliant three-phase models.
tttCalifornia SCAQMD compliant low NOx models have combustion products that are controlled to 40 nanegrams per joule or less.
BLK _ BLK
YEL
1
BLK _
I
,,
I;%F'i'
TO COMP
208/230-1-60
(SIZES 48HJ004-006)
EQUIP
GND i
F--t_I
1
PI ELD POWER SUPPLY
_ .L .L L __
7
PER NEC
L* ....
J
FIELD POWERSUPPLY
_ .L.L .L --
208/230-3-60460-3-60 _F-DISCONNEcT 7
(SIZES 48HJ004, 005) L..
PERNEC ,{
[;%
575-3-60
(SIZES 48HJ004, 005)
I
I
I
FIELD POWERSUPPLY r -- a-.L
L--7
_ DISCONNECT I
L .....
PER NEC J
TO COMP
208/230-3-50
460-3-80
(SIZES 48HJ006, 007)
FIELD POWER SUPPLY
_ ,.L_ .L --
,r-D ISCONNECT 7
:
BLK ---_J
I
TO TB2 BLK _ TO COMP i ' !
I ii
,
I
I®®1
575-3-50
(SIZES48HJ006, 007)
1
I
FIELD POWER SUPPLY
_I.LL__
[-DI SCONNECT 7
L PE?NEC
j
LEGEND
C -Contactor
COMP -Compressor
EQUIP -Equipment
GND -Ground
IFC
NEC
TB
-Indoor (Evaporator)
Fan Contactor
-National Electrical Code
-Terminal Block
Fig. 10 -- Power Wiring Connections
COOL STAGE 1
FAN
HEAT STAGE 1
COOL STAGE 2
HEAT STAGE 2
24 VAC HOT
Y/Y2
O/W2
R
]
f-
• I
F__J m
R
G
Y1
Y2
W1
W2
C
IPD/X
WIRE
CONNECTIONS
TO
LOW-VOLTAGE
SECTION
24 VAC COM
N/A
OUTDOOR
SENSOR
AIR $1
$2
4
THERMOSTAT
ON
A B
DIPSWITCH
C D
SETTINGS
LEGEND
Field Wiring
NOTE: Underlined letter indicates active thermostat output when configured for A/C operation.
Fig. 11A -- Low-Voltage Connections With or
Without Economizer or Two-Position Damper
CONTROL
CONNECTION
BOARD
THERMOSTAT CONTROL
CONNECTION
BOARD
{_ RMTOCC
CMPSAFE1
T_i
!_
*_1_'-
{£_i '_
_YY11/_
{:_)
(Wl_, SFS 4
NOT USED i
,
= /'W2_
\ /
(W2}
7 G \
\ /
( %?x
{:::_}
Fig. 11 B -- Low Voltage Connections
(Units with PremierLink
TM
Controls)
RACEWAY LOW VOLTAGE
CONNECTIONS
INTEGRATED
CONTROLLER
GAS UNIT
(IGC)
10
HOLE IN END PANEL (HIDDEN)
Fig. 12Field Control Wiring Raceway
Table 2A -- Electrical Data -- Standard Motor Units Without Electrical Convenience Outlet
UNIT
48HJ
OO4
(3 Tons)
005
(4 Tons)
006
(5 Tons)
0O7
(6 Tons)
NOMINAL VOLTAGE
(V-Ph-Hz)
208/230-1-60
208/230-3-60
460-3-60
575-3-60
208/230-1-60
208/230-3-60
460-3-60
575-3-60
208/230-1-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
187
414
518
187
187
414
518
187
414
518
VOLTAGE
RANGE
Min
187
Max
254
187
414
518
187
254
508
632
284
254
508
632
254
284
508
632
254
508
632
Qty
COMPRESSOR
(each)
RLA
16.0
LRA
88.0
1
10.3
8.1
4.2
23.7
77.0
39.0
31.0
126.0
1
1
1
13.5
6.4
6.4
28.8
17.3
9.0
7.1
20.5
9.6
7.7
93.0
46.5
40.0
169.0
123.0
62.0
50.0
186.0
75.0
56.0
1.5
0.8
0.8
1.4
0.7
0.4
0.4
1.5
0.6
0.6
OFM
(each)
FLA
0.7
0.7
0.4
0.4
0.7
5.8
2.6
2.6
5.8
4.9
2.2
2.2
8.8
2.6
2.6
IFM
FLA
4.9
4.9
2.2
2.2
4.9
COMBUSTION
FAN MOTOR
FLA
.60
.60
.30
.30
.60
.60
.30
.30
.60
.60
.30
.30
.60
.30
.30
POWER SUPPLY*
MCA
25.6/25.6
18.5/18.5
9.0
7.3
35.2/35.2
22.5/22.8
10.6
10.1
46.3/46.3
28.9/28.9
14.7
11.6
32.8/32.8
15.2
12.2
20
60/60
38/35
20
20
40/40
20
20
MOCP**
30/30
25/25
20
20
45/45
30/30
20
22/22
10
10
45/45
28/28
14
12
32/32
15
12
MINIMUM UNIT
DISCONNECT SIZEt
FLA
25/25
LRA
101/101
18/18
9
7
34/34
90/90
46
37
139/139
106/106
54
46
216/216
168/168
84
68
200/200
97
74
UNIT
48HJ
004
(3 Tons)
005
(4 Tons)
006
(5 Tons)
007
(6 Tons)
NOMINAL VOLTAGE
(V-Ph-Hz)
208/230-1-60
208/230-3-60
460-3-60
575-3-60
208/230-1-60
208/230-3-60
460-3-60
575-3-60
208/230-1-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
LEGEND
FLA -Full Load Amps
HACR -Heating, Air Conditioning and
Refrigeration
IFM
LRA
-Indoor (Evaporator) Fan Motor
-Locked Rotor Amps
MCA -Minimum Circuit Amps
MOCP -Maximum Overcurrent Protection
NEC -National Electrical Code
OFM
RLA
UL
-Outdoor (Condenser) Fan Motor
-Rated Load Amps
-Underwriters' Laboratories
187
414
518
187
187
414
518
187
414
518
VOLTAGE
RANGE
Min
187
Max
254
187
414
818
187
254
508
632
284
254
508
632
284
254
508
632
284
508
632
Qty
COMPRESSOR
(each)
RLA
16.0
LRA
88.0
1
1
1
1
10.3
5.1
4.2
23.7
13.5
6.4
6.4
28.8
17.3
9.0
7.1
20.5
9.6
7.7
77.0
39.0
31.0
126.0
*The values listed in this table do not include power exhaust.
See table at right for power exhaust requirements.
tUsed to determine minimum disconnect per NEC.
**Fuse or HACR circuit breaker.
NOTES:
1.
In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker.
The UL,
Canada units may be fuse or circuit breaker.
2.
Electrical data based on 95 F ambient outdoor-air temperature _+10% voltage.
3, Unbalanced 3-Phase Supply Voltage
Never operate a motor where pbase imbalance in supply voltage is greater than 2%. Use the following formula to determine the pereent voltage imbalance.
% Voltage Imbalance
= 100 x max voltage deviation from average voltage average voltage
Example: Supply voltage is 460-3-60.
93.0
46.5
40.0
169.0
123.0
62.0
50.0
156.0
75.0
56.0
_)
A B C
Table 2B -- Electrical Data -- Standard Motor Units With Electrical Convenience Outlet
AB = 452 V
BC = 464 v
Average Voltage =
AC = 455 v
452 + 464 + 455
3
1371
= 457
3
1.5
0.8
0.8
1.4
0.7
0.4
0.4
1.5
0.6
0.6
OFM
(each)
FLA
0.7
0.7
0.4
0.4
0.7
5.8
2.6
2.6
8.8
4.9
2.2
2.2
8.8
2.6
2.6
IFM
FLA
4.9
4.9
2.2
2.2
4.9
COMBUSTION
FAN MOTOR
FLA
.60
.60
.30
.30
.60
.60
.30
.30
.60
.60
.30
.30
.60
.30
.30
POWER SUPPLY
WITH OUTLET*
MCA
31.6/31.6
MOCP**
38/38
24.5/24.5
11.7
9.5
41.2/41.2
30/30
20
20
50/80
28.8/28.5
13.3
12.2
52.3/52.3
34.9/34.9
17.4
13.8
38.8/38.8
17.9
14.3
35/35
20
20
60/60
40/40
20
20
45/45
20
20
27/27
13
12
50/50
34/34
17
13
37/37
17
14
MINIMUM UNIT
DISCONNECT SIZEt
FLA LRA
30/30 106/106
24/24
11
9
39/39
98/98
48
38
144/144
111/111
56
47
221/221
173/173
87
70
205/205
99
75
Determine maximum deviation from average voltage.
(AB) 457 - 482 = 5 v
(BC) 464 - 487 = 7 v
(AC) 487 -488 = 2 v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
7
% Voltage Imbalance = 100x
= 1.83%
This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.
I MPORTANT: If the supply voltage phase imbalance is more than I
POWER EXHAUST ELECTRICAL DATA
POWER EXHAUST
PART NO.
CRPWREXH021A01
CRPWREXH022A01
CRPWREXH023A01
CRPWREXH028A01
CRPWREXH029A01
CRPWREXH030A01
MCA
(230 v)
N/A
3.3
N/A
1.7
N/A
1.6
MCA
(460 v)
0.9
N/A
1.8
N/A
1.0
N/A
MCA
(575 v)
N/A
1.32
N/A
0.68
N/A
0.64
MOCP
(for separate power source)
15
15
15
15
15
15
N/A -Not available
NOTE: If a single power source is to be used, size wire to include power exhaust MCA and M©CR
Check MCA and MOCP when power exhaust is powered through the unit.
Determine the new MCA including the power exhaust using the following formula:
MCA New = MCA unit only + MCA of Power Exhaust
For example, using a 48HJD006---5 unit with MCA = 28.9 and MOCP = 35.
with CRPWREXH030A01 power exhaust.
MCA New = 28.9 amps + 1.6 amps = 30.5 amps
If the new MCA does not exceed the published MOCE then M©CP would net change.
The MOCP in this example is 35 amps and the MCA New is below
35; therefore the MOCP is acceptable.
If "MCA New" is larger than the published MOCE raise the MOCP to the next larger size. For separate power, the
MOCP for the power exhaust will be 15 amps per NEC.
I
))
UNIT
48HJ
O04
005
006
007
Table 20 -- Electrical Data -- High-Static Motor Units Without Electrical Convenience Outlet
NOMINAL
VOLTAGE
(V-Ph-Hz)
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
875-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
VOLTAGE
RANGE
Min
187
414
518
187
414
818
187
414
518
187
414
518
Max
284
508
632
254
508
632
254
508
632
254
508
632
Qty
1
1
1
1
COMPRESSOR
(each)
RLA
10.3
5.1
4.2
13.5
6.4
6.4
17.3
9.0
7.1
20.5
9.6
7.7
LRA
77.0
39.0
31.0
93.0
46.5
40.0
123.0
62.0
50.0
156.0
75.0
56.0
OFM
(each)
FLA
0.7
0.4
0.4
0.7
0.4
0.4
1.5
0.8
0.8
1.4
0.6
0.6
IFM
FLA
5.8
2.6
2.6
5.8
2.6
2.6
7.5
3.4
3.4
7.5
3.4
3.4
COMBUSTION
FAN MOTOR
RLA
0.6
0.3
0.3
0.6
0.3
0.3
0.6
0.3
0.3
0.6
0.3
0.3
POWER SUPPLY*
MCA
19.4
9.4
7.7
23.4
11.0
10.4
30.6
15.5
12.2
34.8
16
12.8
MOCP**
28
20
20
30
20
20
35
20
20
40
20
20
10
30
15
12
34
16
13
MINIMUM UNIT
DISCONNECT
SIZEt
FLA
19
LRA
120
23
11
9
8
60
48
136
68
57
187
94
76
219
107
81
*The values listed in this table do not include power exhaust.
See table at right for power exhaust requirements.
l-Used to determine minimum disconnect per NEC.
**Fuse or HACR circuit breaker.
NOTES:
1.
In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker.
The UL.
Canada units may be fuse or circuit breaker.
2.
Electrical data based on 95 F ambient outdoor-air temperature _+10% voltage.
3.
Unbalanced 3-Phase Supply Voltage
Never operate a motor where phase imbalance in supply voltage is greater than 2%.
Use the following formula to determine the pement voltage imbalance.
% Voltage Imbalance
= 100 x max voltage deviation from average voltage average voltage
Example: Supply voltage is 460-3-60.
(_
A B c
Table 2D -- Electrical Data -- High-Static Motor Units With Electrical Convenience Outlet
UNIT
48HJ
004
005
006
007
NOMINAL
VOLTAGE
(V-Ph-Hz)
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
VOLTAGE
RANGE
Min
187
414
518
187
414
518
187
414
518
187
414
518
254
508
632
254
508
632
Max
254
508
632
254
508
632
LEGEND
FLA -Full Load Amps
HACR -Heating, Air Conditioning and
Refrigeration
IFM
LRA
-Indoor (Evaporator) Fan Motor
-Locked Rotor Amps
MOCP -Maximum Overcurrent Protection
NEC -National Electrical Code
OFM
RLA
UL
-Outdoor (Condenser) Fan Motor
-Rated Load Amps
-Underwriters' Laboratories
AB = 452 v
BC = 464 v
Qty
1
1
1
1
COMPRESSOR
(each)
17.3
9.0
7.1
20.5
9.6
7.7
RLA
10.3
5.1
4.2
13.8
6.4
6.4
LRA
77.0
39.0
31.0
93.0
46.5
40.0
123.0
62.0
50.0
156.0
75.0
56.0
C @
Average Voltage =
AC = 455 v
452 + 464 + 458
3
1371
3
= 457
Determine maximum deviation from average voltage.
(AB) 457 - 482 = 8 v
(BC) 464 - 457 = 7 v
(AC) 487 - 488 = 2 v
I1__
,w_,la
OFM
(each)
1.5
0.8
0.8
1.4
0.6
0.6
FLA
0.7
0.4
0.4
0.7
0.4
0.4
IFM
FLA
5.8
2.6
2.6
5.8
2.6
2.6
7.5
3.4
3.4
7.5
3.4
3.4
COMBUSTION
FAN MOTOR
0.6
0.3
0.3
0.6
0.3
0.3
RLA
0.6
0.3
0.3
0.6
0.3
0.3
POWER SUPPLY*
MCA
28.4
12.1
9.8
29.4
13.7
12.6
36.6
18.2
14.4
40.5
18.7
15.0
40
20
20
45
25
20
MOCP**
30
20
20
35
20
20
36
18
14
39
18
15
MINIMUM UNIT
DISCONNECT
SIZEt
FLA LRA
28
12
124
63
10
29
13
12
50
140
70
59
192
96
77
224
109
83
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
7
% Voltage Imbalance = 100 x 4_
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.
I MPORTANT: If the supply voltage phase imbalance is more than I
POWER EXHAUST ELECTRICAL DATA
POWER EXHAUST
PART NO,
CRPWREXH021A01
CRPWREXH022A01
CRPWREXH023A01
CRPWREXH028A01
CRPWREXH029A01
CRPWREXH030A01
MCA
N/A
3.3
N/A
1.7
N/A
1.8
MCA
(230 v) (460 v) (875 v)
0.9
N/A
1.8
N/A
1.0
N/A
MCA
N/A
1.32
N/A
0.88
N/A
0.84
MOCP
(for separate power source)
15
15
15
15
15
15
N/A -- Not available
NOTE: If a single power source is to be used, size wire to include power exhaust MCA and MOCR
Check MCA and MOCP when power exhaust is powered through the unit.
Determine the new MCA including the power exhaust using the following formula:
MCA New = MCA unit only + MCA of Power Exhaust
For example, using a 48HJD006---5 unit with MCA = 28.9 and MOCP = 38, with CRPWREXH030A01 power exhaust.
MCA New = 28.9 amps + 1.6 amps = 30.5 amps
If the new MCA does not exceed the published MOCE then MOCP would not change.
The M©CP in this example is 35 amps and the MCA New is below
35; therefore the M©CP is acceptable.
If "MCA New" is larger than the published MOCP, raise the MOCP to the next larger size. For separate power, the
MOCP for the power exhaust will be 15 amps per NEC.
I
)2
Step 8 -Adjust Factory-Installed Options
COBRA
TM
ENERGY RECOVERY UNITS -- Please lefer to the supplement provided for information on installing and operating the factory optional COBRA Energy Recovery
Units. These units are equipped with a factou-installed energy recove U unit and have different installation and operation procedums than the stan&u'd unit.
HUMIDI-MIZER
TM
ADAPTIVE DEHUMIDIFICATION
SYSTEM--Humidi-MiZer system operation can be controlled by field installation of a Carrie>approved humidistat
(Fig. 13).
NOTE: A light commercial Thermidistat
TM device (Fig. 14) can be used instead of the humidistat if desimdi The Thermidistat device includes a thermostat and a humidistat. The humidistat is norm',flly used in applications where a temperature sensor is already provided (units with PremierLink
TM control).
To install the humidistat:
1. Route humidistat cable through hole provided in unit comer post.
2. Feed wires through the raceway built into the corner post to the 24-v bamer located on the left side of the control
box. See Fig. 12. The raceway provides the UL-mquimd clemance between high-voltage and low-voltage wiring.
3. Use a wire nut to connect humidistat cable into lowvoltage wiring as shown in Fig. 15.
To install Thermidistat device:
1. Route Thermidistat cable through hole provided in unit corner post.
2. Feed the wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig. 12. The raceway provides the UL-required clearance between high and low voltage wiring.
3. A field-supplied relay must be installed between the thermidistat and the Humidi-Mizer circuit (recommended relay: HN612KK324).
See Fig. 16. The relay coil is connected between the DEHUM output and C (common) of the unit. The relay controls the
Humidi-MiZer solenoid valve and must be wired between the Humidi-MiZer fuse and the low-pressure switch.
Refer to the installation instructions included with the Carrier Light Commercial Thermidistat device for more information.
MANUAL OUTDOOR-AIR DAMPER -- The outdoor-air hood and screen me attached to the basepan at the bottom of the unit for shipping.
Assemb122:
1. Determine quantity of ventilation required for building.
Record amount for use in Step 8.
2. Remove and save outdoor air opening panel and screws.
See Fig. 17.
Fig. 13Accessory Field-Installed Humidistat
Fig. 14 -- Light Commercial Thermidistat Device
3. Remove evaporator coil access panel. Separate hood and screen from basepan by removing the 4 screws securing them. Save all screws.
4. Replace ewtporator coil access panel.
5. Place hood on front of outdoor air opening panel. See
Fig. 18 for hood details. Secure top of hood with the
4 screws removed in Step 3. See Fig. 19.
6. Remove and save 6 screws (3 on each side) from sides of the manual outdoo>air &_mpel:
7. Align screw holes on hood with screw holes on side of manual outdoo>air dampel: See Fig. 18 and 19. Secure hood with 6 screws from Step 6.
8. Adjust minimum position setting of the damper blade by adjusting the manual outdoo>air adjustment screws on the fiont of the dmnper blade. See Fig. 17. Slide blade vertically until it is in the appropriate position determined
by Fig. 20. Tighten screws.
9. Remove and save screws cunently on sides of hood.
Insert screen. Secure screen to hood using the screws. See
Fig. 19.
13
•_1_"
BLK
_TRAN
L ILO
P NK
IIR1
3.2
AHPS
_REO I
BRN
BIU
CRI
PNK LSV]
BLK _BLK
I--.Z.J
"I
BRN--_
CB
CR
DHR
DSV
HR
LPS
LSV
LTLO
-Circuit Breaker
-Cooling Relay
-Dehumidify Relay
-Discharge Solenoid Valve
-Heater Relay
-Low Pressure Switch
-Liquid Solenoid Valve
-Low Temperature Lockout
LEGEND O
•
Field Splice
Term,ha, (_-n:]: ke d_LPN<'_
Splice
Factory Wiring
Field Control
Wiring
Field Power Wiring
1 _LPS1
_ OR2
_
/ i,_ BL U,_
LPS2
6"E_BLU'_O_BLUJ
I
BLU_ I'm
_'_
__ _
0RN "_3L p DSV2
0R";
..T--BRN-*,
TB
I_:x_--
Fig. 15Typical Humidi-MiZer
TM
Adaptive Dehumidification System
Humidistat Wiring (208/230-V Unit Shown)
LCT
ROOFTOPUNIT
//7---
......
TSTATWIRES
LEGEND
CB -Circuit Breaker
LCT i Light Commercial Thermidistat
TM
Device
LLSV i Liquid Line Solenoid Valve
LTLO i Low Temperature Lockout
EE]-
R1
PINK
HUMIDI-MIZER
Fig. 16Typical Rooftop Unit with Humidi-Mizer
Adaptive Dehumidification System with Thermidistat Device
SYSTEM
_RE_D_ 24V
PINK_ . FROM
HUMIDI-MIZER
LLSV
SYSTEM
OUTDOOR
AIR OPENING
PANEL
3 SCREWS
(SIDE) _
MANUAL
OUTDOOR-AtR
ADJUSTMENT
SCREWS
_/
POSITION SE_ING
SCALE
DAMPER
BLADE
Fig. 17 -- Damper Panel with Manual Outdoor-Air
Damper Installed
HOOD TOP SCREWS
(HIDDEN) _
SCREWS
(SCREEN HOLDERS)
HOOD SIDES AND TOP-
ASSEMBLED
HOOD
SIDE
Fig. 18 -- Outdoor-Air Hood Details
14
SCREW
HOLES
(TOP)
HOOD_
SCREEN
LOCATIOK
(SCREEN
NOT SHOWN)
Fig. 19 -- Outdoor-Air Damper with
Hood Attached
0.6
0.5
_" 0,4
UI o3
03
LU m 0.3
13.
LU
>
Z
0.2
o o 1 2 3 4 5
OUTDOOR AIRFLOW (cfm x 100)
6 7
Fig. 20 -- Outdoor-Air Damper Position Setting
CONVENIENCE OUTLET -An optiomfl convenience outlet provides power for rooftop use. For maintenance personnel safety, the convenience outlet power is off when the unit disconnect is off. Adjacent unit outlets may be used for service tool s.
NOVAR CONTROLS -- Optiomd Novar controls (ETM
3051 ) me available for replacement or new construction jobs.
PREMIERLIN K
TM
CONTROL -- The PremierLink controller is compatible with Carrier Comfort Network® (CCN) devices. This control is designed to tdlow users the access and ability to change factory-defined settings, thus expanding the function of file standmd unit control board. Carder's diagnostic standard tier display tools such as Navigato( r_'_ or Scrolling
Marquee can be used wifli the PremierLink controllec
The PremierLink controller (see Fig. 21A and 21B) requires the use of a Carrier electronic thermostat or a CCN connection for time broadcast to initiate its internal timeclock.
This is necessmy for broadcast of time of &ty functions (occupied/ unoccupied).
No sensors are supplied with the field-mounted
PremierLink control.
The factory-installed PremierLink con-
trol includes only the supply-air temperature (SAT) sensor and file outdoor air temperature (OAT) sensor as stan&lrd.
An
indoor air quality (CO2) sensor can be added as an option.
Refer to Table 3 for sensor usage.
Refer to Fig.
22 for
PremierLink controller wiring.
The PremierLink control may be mounted in the control panel or tin mea below the control panel.
NOTE: PremierLink controller versions 1.3 and later are shipped in Sensor mode.
If used with a thermostat, the PremierLink controller must be configured to Thermostat mode.
Insttfll file Supply Air Temperature (SAT) Sensor -When the unit is supplied with a factory-mounted PremierLink control, the supply-air temperature (SAT) sensor (33ZCSENSAT) is factory-supplied and wired.
The wiring is routed from the
PremierLink control over the control box, flirough a grommet,
into the fan section, down along the back side of the fan, and along the fan deck over to the supply-air opening.
The SAT probe is wire-tied to file supply-air opening (on the horizontal opening end) in its shipping position.
Remove the sensor for installation. Re-position the sensor in the flange of file supply-air opening or in the supply air duct (as required by local codes). Drill or punch a l/2-in, hole in the flange or duct.
Use two field-supplied, self-drilling screws to secure the sensor probe in a horizontal orientation.
NOTE: The sensor must be mounted in the dischmge airstream downstream of the cooling coil and any heating devices.
Be sure the probe tip does not come in contact with tiny of the unit or heat surfaces.
Outdoor Air Temperature (OAT) Sensor -When the unit is supplied with a factoly-mounted PremierLink control, the outdoor-air temperature (OAT) sensor is factory-supplied and wired.
Install the Indoor Air Quality (COe) Sensor -Mount the optional indoor air quality (CO2) sensor according to manufacturer specifications.
A separate field-supplied transformer must be used to power the CO2 sensoc
Wire the CO2 sensor to the COM and IAQI terminals of J5 on the PremierLink controllec Refer to the PremierLink Installation, Start-up, and Configuration Instructions for detailed wiring and configuration information.
Enthalpy Sensors and Control -The enthalpy control
(HH57AC077) is supplied as a field-installed accessory to be used with the EconoMiSer2 damper control option.
The outdoor air enthalpy sensor is part of the enthalpy control.
The septu'ate field-installed accessory return air enthalpy sensor
(HH57AC078) is required for differentkd enthalpy control.
NOTE: The enthalpy control must be set to the "D" setting for differential enthalpy control to work properly.
The enthtdpy control receives the indoor and return enthalpy from the outdoor and return air enthtdpy sensors and provides a @ contact switch input to the PremierLink controllec Locate the controller in place of an existing economizer controller or near the actuatoc The mounting plate may not be needed if existing bracket is used.
A closed contact indicates that outside air is preferred to the return aic An open contact indicates that the economizer should remain tit minimum position.
15
Table 3PremierLink
TM
Sensor Usage
APPLICATION
Differential Dry Bulb
Temperature
PremierLink* with
(PremierLink requires 4-20 mA
Actuator)
Single Enthalpy with
PremierLink*
(PremierLink requires 4-20 mA
Actuator)
Differential Enthalpy with PremierLink*
(PremierLink requires 4-20 mA
Actuator)
OUTDOOR AIR
TEMPERATURE
Included
CRTEMPSN001A00
Included
Not Used
Included
Not Used
SENSOR
--
--
--
RETURN
TEMPERATURE
Required
33ZCT55SPT
-or Equivalent
--
--
AIR
SENSOR
OUTDOOR
ENTHALPY
--
Required
Required
HH57AC077
-or Equivalent
AIR
SENSOR orHH57AC077Equivalent
*PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT
Outdoor Air Temperature sensor CRTEMPSN001A00 field-supplied and field-installed with field-installed
-Included
PremierLink and with factory-installed control.
NOTES:
1. CO2 Sensors (Optional):
33ZCSENCO2
33ZCASPCO2
33ZCT55CO2
33ZCT56CO2
PremierLink control;
-Room sensor (adjustable).
Aspirator box is required for duct mounting of the sensor.
-Aspirator box used for duct-mounted CO2 room sensor.
-Space temperature
-Space temperature and CO2 room sensor with override.
and CO2 room sensor with override and set point.
2. All units include the following Standard Sensors:
Outdoor-Air Sensor -50HJ540569 -Opens at 67 F, closes at 52 F, not adjustable.
Mixed-Air Sensor -HH97AZ001 -(PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT and Outdoor Air Temperature Sensor CRTEMPSN001A00)
Compressor Lockout Sensor -50HJ540570 -Opens at 35 F, closes at 50 E
--
RETURN AIR
ENTHALPY SENSOR
--
--
Required --
HH57AC078 or Equivalent
HVAC SENSOR INPUTS
0
SL
0 (
DUAL MODE SENSOR/STAT
REMOTE OCCUPANCY
COMP SAFETY (Y1) ._
FIRE SHUTDOWN (Y2) Z
SUPPLY FAN STATUS (Wl)
NOT USED
ENTHALPY STATUS (ENTk
CCN/LEN
PORT
/
NAVIGATOR
PORT
4-20MA
ECONOMIZER
,/ t "4 "-4 "-..
INDOOR COMPR HEAT EXHAUST
FAN MOTOR 1 & 2 LOW/HIGH RVSVALVE
OUTPUTS
Fig. 21A -- PremierLink Controller
16
PREMIERLINK
CONTROL
HINGED
DOOR
PANEL
PREMIERLINK
COVER
Fig. 21B -- PremierLink
TM
Controller (Installed)
©©
::::::::Q
[
:
OUTD_R
ENTHALPY
AiR
SENSOR
Economi$er2
4 - 20mA
0 0 _" i ' GRAY
[
: • i RED ,
BLK
' i
[
CCN
Comm
7F"
\L_
_
WHT
8_[)
..............
RETURN AIR
ENTHALPY
SENSOR
LEGEND
COMMS -Communications
OAT
PWR
--
--
Outdoor Air Temperature
Power
Sensor
RTU
SAT
TB
-Rooftop Unit
-Supply Air Temperature Sensor
-Terminal Block
Fig. 22 -- Typical PremierLink Controls Wiring
]7
6(]t G w_
'_(][j
",C
8 _-lhX
\ /
RTU Terminal
Board
Outdoor Air Enthalpy Sensor/Enthalpy Controller
(HH57AC077) -To wire the outdoor tfir enthalpy sensor.
perform the following (see Fig. 23 and 24):
NOTE: The outdoor air sensor can be removed from the back of the enth_dpy controller and mounted remotely.
1. Use a 4-conductor.
18 or 20 AWG cable to connect the enthalpy control to the PremierLink controller and power tmnsformec
2.
Connect the following 4 wires from the wire hmness located in rooftop unit to the enthalpy controller: a.
Connect the BRN wire to the 24 vac terminal (TRI) on enthalpy control and to pin 1 on 12-pin harness.
b.
Connect the RED wire to the 24 vac GND terminal
(TR) on enth_dpy sensor and to pin 4 on 12-pin hmness.
c.
Connect the GRAY/ORN wire to J4-2 on Premier-
Link controller and to terminal (3) on enthalpy sensoc d.
Connect the GRAY/RED wire to J4-1 on Premier-
Link controller and to terminal (2) on enthalpy sensoc
NOTE: [f installing in a Carrier rooftop, use the two gray wires provided from the control section to the economizer to connect
PremierLink controller to terminals 2 and 3 on enth_dpy sensoc
Return Air Enthalpy Sensor -- Mount the return-air enthalpy sensor (HH57AC078) in the return-air duct.
The return air sensor is wired to the enth_dpy controller (HH57AC077).
The outdoor enth_dpy changeover set point is set at the controller.
To wire the return air enthalpy sensor perform the following (see Fig. 23):
1. Use a 2-conductor, 18 or 20 AWG. twisted pair cable to connect the return air enthalpy sensor to the enthalpy controller.
2.
At the enthalpy control remove the factory-installed resistor from the (SR) and (+) termimds.
3.
Connect the field-supplied RED wire to (+) spade connector on the return air enthalpy sensor and the (SR+) terminal on the enth_dpy controllel: Connect the BLK wire to (S) spade connector on the return air enthalpy sensor and the (SR) terminal on the enthalpy controller
OPTIONAL ECONOM[$ER IV AND ECONOM[$ER2 --
See Fig.
25 for EconoMiSer IV component locations.
See
Fig. 26 for EconoMiSer2 component locations.
NOTE: These instructions are for installing the optiomd
EconoMiSer IV and EconoMi$er2 only. Refer to the accessory
EconoMiSer IV or EconoMiSer2 inst_dlation instructions when field installing an EconoMiSer [V or EconoMi$er2 accessory.
1. To remove the existing unit filter access panel, rgfise the panel and swing the bottom outwmd.
The panel is now disengaged from the track and can be removed.
See
Fig. 27.
2.
The box with the economizer hood components is shipped in the compartment behind the economizer The
EconoMiSer IV controller is mounted on top of the
EconoMiSer [V in the position shown in Fig. 25. The optiomd EconoMiSer2 with 4 to 20 mA actuator signal control does not include the EconoMi$er IV controllec
To remove the component box from its shipping position, remove the screw holding the hood box bracket to the top of the economizec Slide the hood box out of the unit. See
Fig. 28.
HH57AC077
ENTHALPY
CONTROL AND
OUTDOOR AIR
ENTHALPYSENSOR
HH57AC078 ENTHALPY
SENSOR (USED WITH
ENTHALPY CONTROL
FOR DIFFERENTIAL
ENTHALPY OPERATION)
MOUNTING PLATE
Fig. 24 -- Differential Enthalpy Control,
Sensor and Mounting Plate (33AMKITENT006)
HARNESS
........
ACTUATOR _
OUTSIDE AIR
AI /
/ LOWAMO,ENT
g ,_ Y / SENSOR
_r,_ ,_= / x_ 0 _ -/
Fig. 25 -EconoMi$er IV Component Locations
OUTDOOR
AIR HOOD
LED
BLK
RED r_ t (OUTDOORAIR
SENSOR)
SRCq+D-
---q
' FIs (RETURNAIRI
FI + ENTHALPY
-SENSOR
GRAY/ORN
GRAY/RED
,,.WIRE HARNESS jIN
UNIT
NOTES:
1. Remove factory-installed jumper across SR and + before connecting wires from return air sensor.
2. Switches shown in high outdoor air enthalpy state.
Terminals 2 and 3 close on low outdoor air enthalpy relative to indoor air enthalpy.
3. Remove sensor mounted on back of control and locate in outdoor airstream.
Fig. 23 -Outdoor and Return Air Sensor Wiring
Connections for Differential Enthalpy Control
18
ECONOMI$ER2_
PWO
HOOD
BRACKET
/
BAROMETRIC
RELIEF
DAMPER
GEAR DRIVEN
DAMPER
Fig. 26 -- EconoMi$er2 Component Locations
FILTER ACCESS PANEL
SIDE
PANEL
Fig. 27-
_COMPRESSOR
ACCESS PANEL
OUTDOOR-AIR
INDOOR COIL
OPENING
ACCESS
AND
PANEL
Typical Access Panel Locations
INDOOR
COIL
ACCESS
PANEL
N
",
"',
TOP
SIDE
PANEL
INDOOR
COIL
PANEL
Fig. 29 -- Indoor Coil Access Panel Relocation i I
1 I
/
I
I
I
I
11 ii i I i I
II
0
Fig. 28Hood Box Removal
HOOD BOX
BRACKET
TOP
PANEL
INDOOR
ACCESS
COIL
PANEL
LEFT
SIDE installed on the unit, the hood shipped with the unit will not be used and must be discarded.
Save the aluminum filter
I IMPORTANT: If the power exhaust accessory is to be for use in the power exhaust hood assembly.
3.
The indoor coil access panel will be used as the top of the hood. Remove the screws along the sides and bottom of the indoor coil access panel. See Fig. 29.
4.
Swing out indoor coil access panel and insert the hood sides under the panel (hood top). Use the sclews provided to attach the hood sides to the hood top. Use screws provided to attach the hood sides to the unit. See Fig. 30.
5.
Remove the shipping tape holding the economizer barometric relief &_mper in place.
6.
Insert the hood divider between the hood sides.
See
Fig. 30 and 31. Secure hood divider with 2 screws on each hood side. The hood divider is also used as the bottom tilter rock for file aluminum filter.
7.
Open the tilter clips which are located underneath the hood top. Insert the aluminum tilter into the bottom tilter rack (hood divider).
Push the tilter into position past the open filter clips. Close the filter clips to lock the tilter into place. See Fig. 31.
8.
Caulk the ends of the joint between the unit top panel and the hood top. See Fig. 29.
9.
Replace the filter access panel.
10.
Install all EconoMi$er IV accessories.
EconoMi$er IV wiring is shown in Fig. 32. EconoMi$er2 wiring is shown in Fig. 33.
Barometric flow capacity is shown in Fig. 34. Outdoor air leakage is shown in Fig. 35. Return air pressure drop is shown in Fig. 36.
19
Fig. 30 --
BAROMETRIC
RELIEF
HOOD DIVIDER
Outdoor-Air
17 1/4"
Hood
ALUMINUM
FI_ER
Construction
Fig. 31 -- Filter Installation
HOOD
FILTER
CLIP
/
FOR OCCUPANCY CONTROL
REPLACE JUMPER WITH
FIELD-SUPPLIED TIME CLOCK
8LK
ECONO_I ZZR MOTOR
(F]ELD
ACCESSORY)
REMOTE MI_
POSiI[O_ POT
PL6-R
FOR STD
UNIT
IAO SEICSOR
FIELD ]ICSTALLED _ _
OAr TEMPI
E_T_AL_Y DE_SOR
/FIELD ACCESDORYI
RAT/ENrHAIPY SE_DOR
LEGEND
DCV-Demand Controlled Ventilation
IAQ -Indoor Air Quality
LA -Low Ambient Lockout Device
OAT-Outdoor-Air Temperature
POT-Potentiometer
RAT-Return-Air Temperature
--GRyJ
(R0f USED}
TAN
FIELD SPLICE
BLU
FIELD
BRN
SPLICE,
GRY
ORG
IROT gSEOl
5_
9_
(_of USED} !_
2_
3_
E
4<
TO PWR EXHAUST
ACCESSORY
Potentiometer Defaults Settings:
Power Exhaust Middle
Minimum Pos.
DCV Max.
DCV Set
Fully Closed
Middle
Middle
Enthalpy C Setting
NOTES:
1. 620 ohm, 1 watt 5% resistor should be removed only when using differential enthalpy or dry bulb.
2. If a separate field-supplied 24 v transformer is used for the IAQ sensor power supply, it cannot have the secondary of the transformer grounded.
3. For field-installed remote minimum position POT, remove black wire jumper between P and P1 and set control minimum position POT to the minimum position.
Fig. 32 -- EconoMi$er IV Wiring
NOTE 1
J
NOTE3
50HJ540573
ACTUATOR
ASSEMBLY
J
'_RUN o
500 OHM _[_>1
RESISTOR?
f
I
I
- e--I_
I
-{III-I ....
I
I
OPTIONAL CO2
SENSOR 4 - 20 mA
OUTPUT
J
T
I i
I
I
I
VIOLET
PINK
s
W
>-
BLACK
RED
WHITE
7
1
8
6
10
11
9
12
5
2
4
3
DIRECT DRIVE
ACTUATOR
ECONOMIZER2 PLUG
NOTES:
1. Switch on actuator must be in run position for economizer to operate,
2.
PremierLink
TM control requires that the standard 50HJ540569 outside-air sensor be replaced by either the CROASENR001A00 enthalpy sensor.
3.
50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor, dry bulb sensor or HH57A077
Fig. 33 -- EconoMi$er2 with 4 to 20 mA Control Wiring
20
2500
W z 2000 w 1500
I f
0
Z
W m o
1000
500
0.05
0] 15
STATIC PRESSURE (in. wg)
0.25
Fig. 34 -- Barometric Flow Capacity
"5
30
LU hz_ 25 cc 20
LU
D_
I-15
LU
LU
EL 10
Ca
D
© z
5
0 q
LL
0.13
0.20
0.22
0.25
0.30
STATIC PRESSURE
0.35
0.40
(in. wg)
0.45
0.50
Fig. 35 -- Outdoor-Air Damper Leakage
6ooe w
D
Z
500_ w w
L
© m 400_ w
3000
2000
Z
L
S
100_
0
0.05
0.10
0.15
0.20
STATIC PRESSURE
0.25
(in. wg)
0.30
Fig. 36 -- Return-Air Pressure Drop
0.35
ECONOMI$ER IV STANDARD SENSORS
Outdoor Air Temperature (OAT) Sensor -The outdoor air temperature sensor (HH57AC074) is a 10 to 20 mA device used to measure the outdoor-air temperature.
The outdoor-air temperature is used to determine when the EconoMiSer IV can be used for free cooling.
The sensor is factory-installed on the
EconoMiSer IV in the outdoor airstream.
See Fig. 25. The operating range of temperature measurement is 40 to 100 E
Supply Air Temperature (SAT) Sensor -The supply air temperature sensor is a 3 K themristor located at the inlet of the indoor fan. See Fig. 37. This sensor is factory installed. The operating range of temperature measurement is 0 ° to 158 E See
Table 4 for sensor temperature/resistance v_dues.
The temperature sensor looks like an eyelet terminal with wires running to it. The sensor is located in the "crimp end" and is sealed fi_m moisture.
Outdoor Air Lockout Sensor -The EconomiSer IV is equipped with an mnbient temperature lockout switch located in the outdoor air stream which is used to lockout the compressors below a 42 F ambient temperature.
See Fig. 25.
21
SUPPLY AIR
TEMPERATURE
SENSOR
MOUNTING
LOCATION
SUPPLY AIR
TEMPERATURE
SENSOR v
Fig. 37 -- Supply Air Sensor Location
Table 4 -- Supply Air Sensor Temperature/
Resistance Values
TEMPERATURE (F)
-58
-40
-22
-4
14
32
50
68
212
230
248
257
158
176
185
194
77
86
104
122
140
266
284
302
RESISTANCE (ohms)
200,250
100,680
53,010
29,091
16,590
9,795
5,970
3,747
3,000
2,416
1,597
1,080
746
525
376
321
274
203
153
116
102
89
70
55
ECONOMISER IV CONTROL MODES
IMPORTANT: include a controllel:
The optional EconoMiSer2
The EconoMiSer2 is operated does not by a 4 to
20 mA signN from an existing
(such as PremierLink information.
TM control).
field-supplied
See Fig.
33 controller for wiring
Determine fl3e EconoMiSer IV control mode before set up of the control. Some modes of operation may require different sensors. Refer to Table 5. The EconoMiSer IV is supplied from the factory with a supply air temperature sensor and an outdoor air temperature sensol: This allows for operation of the
EconoMiSer IV with outdoor air dry bulb changeover control.
Additional accessories can be added to allow for diffelent types of changeover control and operation of the EconoMiSer IV and unit.
Outdoor DLy Bulb Changeover -The standard controller is shipped from the facto q configured for outdoor dlT bulb changeover control. The outdoor air and supply air temperature sensors tue included as stan&ud.
For this control mode, the
temperature selected If theoutdoor-air thesetpoint,theEconoMiSer tominimum
IV will adjusttheoutside below
If theoutdoor-air thesetpoint,theposition ometer toprovide inthismode, oftheoutdoor outdoor theLEDnexttofilefreecooling temperature bythefreecooling setpointis
Fig.38.Thescale
located onthepotentiometer
B,C,andD. SeeFig.39fortheconesponding
isA, temperature
Differential Dry Bulb Control -For differential dry bulb control the standard outdoor dry bulb sensor is used in conjunction with an additional accessory dry bulb sensor (part number
CRTEMPSN002A00).
Tile accessory sensor must be mounted in the return ailstream.
See Fig. 40. Wiring is provided in the
EconoMiSer IV wiring harness. See Fig. 32.
In this mode of operation, the outdoor-air temperatme is compared to the return-air temperature and the lower temperature airsheam is used for cooling.
When using this mode of changeover control, turn the enthalpy setpoint potentiometer fully clockwise to the D setting. See Fig. 38.
Table 5 -- EconoMi$er IV Sensor Usage
APPLICATION
Outdoor Air
Dry Bulb
Differential
Dry Bulb
Single Enthalpy
ECONOMI$ER IV WITH OUTDOOR AIR
DRY BULB SENSOR
Accessories
None. The outdoor is factory
Required air dry bulb sensor installed.
CRTEMPSN002A00*
Differential
Enthalpy
HH57AC078
HH57AC078 and
CRENTDIF004A00*
CO2 for DCV
Control using a
Wall-Mounted
CO2 Sensor
CO2 for DCV
Control using a
Duct-Mounted
CO2 Sensor and
33ZCSENCO2
I_ I
CRCBDIOX005A00tt
*CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units.
As such, these kits may contain parts that will not be needed for installation.
t33ZCSENCO2
**33ZCASPCO2 is an accessory CO2 sensor.
is mounted applications.
an accessory aspirator ttCRCBDiOX005A00 and 33ZCASPCO2 box required for ductis an accessory that contains both 33ZCSENCO2 accessories.
EXHAUST
FAN SET POINT
LED LIGHTS
WHEN EXHAUST
CONTACT IS MADE
MINIMUM DAMPER
POSITION SETTING
MAXIMUM DAMPER _
DEMAND CONTROL
VENTILATION SET POINT
LED LIGHTS WHEN_
DEMAND CONTROL
VENTILATION INPUT
ISABOVE SET POINT
DEMAND CONTROL
VENTILATION SET POINT
LED LIGHTS WHEN
OUTDOOR AIR IS
SUITABLE FOR
CHANGEOVER
ENTHALPY
SET POINT
Fig. 38 -EconoMiSer IV Controller Potentiometer and LED Locations
19
,, i [
17
16- _
15
-LED OF[
LED ON
_LED ON
13
12
11
10
9
4O 46 5O
_m.
55 60 65 70 75
DEGREES FAHRENHEIT
80
LED ON-- --
85
LED OFF "%
I
90 95 100
Fig. 39 -- Outside Air Temperature
Changeover Set Points
_
ECONOMI$ER ]_
CONTROLLER
ECONOMI$ER
/
7
_ GROMMET
I
I
,
I
_f_-
SENSOR
RETURNAIR
RETURN DUCT
(FIELD-PROVIDED)
Fig. 40 -- Return Air Temperature or Enthalpy
Sensor Mounting Location
Outdoor Enthalpy Changeover -For enthalpy control, accessory enthalpy sensor (p_u-t number HH57AC078) is required. Replace the standard outdoor @ bulb temperature sensor with file accessory enthalpy sensor in the same mounting location.
See Fig.
25. When the outdoor air enthalpy rises above the outdoor enthalpy changeover set point, the outdoorair damper moves to its minimum position.
Tile outdoor enthalpy changeover set point is set with the outdoor enth_dpy set point potentiometer on file EconoMiSer IV controllel: The set points are A, B, C, and D. See Fig. 41. The factory-installed
620-ohln jumper must be in place across terrainals SR and SR+ on file EconoMiSer IV controllel: See Fig. 25 and 42.
Differential Enthalpy Control -For differential enthalpy control, the EconoMiSer IV controller uses two enthalpy sensors (HH57AC078 and CRENTDIF004A00), one in the outside air and one in the return air duct.
The EconoMiSer IV controller compmes file outdoor air enthalpy to the return air enthalpy to determine EconoMi$er IV use.
Tile controller selects the lower enthalpy air (return or outdoor) for cooling.
For example, when file outdoor air has a lower enthalpy than the return air. the EconoMi$er IV opens to bring in outdoor air for free cooling.
Replace the standard outside air dry bulb temperature sensor with file accessory enthalpy sensor in the same mounting location.
See Fig. 25. Mount the return air enthalpy sensor in the return air duct.
See Fig. 40. Wiring is provided in the
EconoMiSer IV wiring harness.
See Fig. 32. The outdoor enthalpy changeover set point is set with the outdoor enthalpy set point potentiometer on the EconoMiSer IV controllel: When
22
of changeover fullyclockwise
Indoor Air Quality (IAQ) Sensor Input -The IAQ input can be used for demand control ventilation control based on the level of CO2 measured in the space or return air duct.
Mount the accessory IAQ sensor according to manufacturer specifications.
The IAQ sensor should be wired to the AQ and
AQI terminals of file controller Adjust the DCV potentiometers to correspond to the DCV voltage output of file indoor air quality sensor at the user-determined set point. See Fig. 43.
If a separate field-supplied transformer is used to power the
IAQ sensor, the sensor must not be grounded or the
EconoMi$er IV control board will be damaged.
85 90 95 100 105 110
(29) (32) (35) (38) (41) (43)
CONTROL CONTROL POINT
CURVE APPROXI°F(°C)
AT 50% RH
A
B
73123)
70121)
C
D
67119 )
63(17)
\
\
\
\
\
35
(2)
40
(4)
45
(7)
50 55 60 65 70
(10) (13) (16) (18) (21)
75 80 85 90 95 100
\
105 110
(24) (27) (29) (32) (35) (38) (41) (43)
APPROXIMATE DRY BULB TEMPERATURE-°F (°C)
Fig. 41 -Enthalpy Changeover Set Points
HIGH LIMIT
CURVE
TRIP-1 T_
Vac
HO
......
COM
Vac
@
2
5
4
EF_ EF1
Fig. 42 -EconoMi$er IV Control
CO 2 SENSOR MAX RANGE SETTING
6000
5000 z
2 4000
+800
+900 ppm ppm
3000
Z
2000
W z
<
1000
+1100
_1000 o
2 3 4 5 6 7 8
DAMPER VOLTAGE FOR MAX VENTILATION RATE
Fig. 43
-CO2
Sensor Maximum Range Setting ppm ppm
23
Exhaust Set Point Adjustment -The exhaust set point will determine when the exhaust fan runs based on dmnper position
(if accessory power exhaust is installed). The set point is modified with the Exhaust Fan Set Point (EXH SET) potentiometer
See Fig. 38. The set point represents the damper position above which the exhaust fans will be turned on. When there is a call for exhaust, the EconoMiSer IV controller provides a 45 _+15 second delay before exhaust fan activation to allow the dampers to open. This delay _fllows file damper to reach the appropriate position to avoid unnecessary fan overload.
Minimum Position Control -There is a minimum damper position potentiometer on the EconoMiSer [V controllel: See
Fig. 38. The minimum damper position maintains the minimum airflow into the building during the occupied period.
When using demand ventihttion, the minimum dmnper position represents the minimum ventilation position for VOC
(volatile organic compound) ventilation requirements.
The maximum demand ventilation position is used for fully occupied ventilation.
When demand ventilation control is not being used, the minimum position potentiometer should be used to set the occupied ventilation position.
The maximum demand ventilation position should be turned fully clockwise.
Adjust the minimum position potentiometer to allow the minimum mnount of outdoor aik as required by local codes, to enter the building.
Make minimum position adjustments with at least 10 F temperature difference between the outdoor and return-air temperatures.
To determine the minimum position setting, perform the following procedure:
1. Calculate the appropriate mixed air temperature using the following formula:
OA
(To x l---ff_ ) + (TR x _
RA
= TM
To = Outdoor-Air Temperature
OA = Percent of Outdoor Air
TR = Return-Air Temperature
RA = Percent of Return Air
TM = Mixed-Air Temperature
As an example, if local codes require 10% outdoor air during occupied conditions, outdoor-air temperature is
60 E and return-air temperature is 75 E
(60 x .10) + (75 x .90) =73.5
F
2.
Disconnect the supply air sensor from terminals T and
TI.
3.
Ensure that the factory-installed jumper is in place across terminals P and PI. If remote damper positioning is being used, make sure that the terminals are wired according to
Fig. 32 and that the minimum position potentiometer is turned fully clockwise.
4.
Connect 24 vac across terminals TR and TRI.
5.
Carelhlly adjust the minimum position potentiometer until the measured supply air temperature matches the calculated value.
6.
Reconnect the supply air sensor to termimfls T and TI.
Remote control of the EconoMiSer IV damper is desirable when requiring additiomfl tempormy ventilation.
If a field-supplied remote potentiometer (Honeywell part number
$963B1128) is wired to the EconoMiSer IV controllek the minimum position of the damper can be controlled from a remote location.
To control the minimum damper position remotely, remove the factory-installed jumper on the P and PI terminals on the
EconoMiSer IV controllel: Wire the field-supplied potentiometer to the P and PI terminals on the EconoMi$er IV controller.
See Fig. 42.
24
Damper Movement -- Damper movement trom full open to full closed (or vice versa) takes 2112minutes.
Thermostats -- The EconoMi$er IV control works with conventiomd thermostats that have a YI (cool stage 1), Y2 (cool stage 2), Wl (heat stage 1), W2 (heat stage 2), and G (fan). The
EconoMi$er IV control does not support space temperature sensors. Connections are made at the thermostat termimd connection board located in the main control box.
Occupancy Control -- The facto U default configuration for the EconoMi$er IV control is occupied mode. Occupied status is provided by the black jumper fiom terminal TR to terminal
N. When unoccupied mode is desired, install a field-supplied time clock function in place of the jumper between TR and N.
See Fig. 32. When the time clock contacts me closed, the
EconoMi$er IV control will be in occupied mode. When the time clock contacts are open (removing the 24-v signal from terminal N), the EconoMi$er IV will be in unoccupied mode.
Demand Controlled Ventilation (DCV) -- When using the
EconoMi$er IV for demand controlled ventilation, them are some equipment selection criteria which should be considered.
When selecting the heat capacity and cool capacity of the equipment, the maximum ventilation rote must be evaluated for design conditions. The maximum damper position must be calculated to provide the desired fresh air
Typically the maximum ventilation rate will be about 5 to
10% more than the typical cfin required per person, using normal outside air design criteria.
A proportional anticipatory strategy should be taken with the following conditions: a zone with a large area, varied occupancy, and equipment that cannot exceed the required ventilation rate at design conditions. Exceeding the required ventilation rate means the equipment can condition air at a maximum ventilation rate that is greater than the required ventilation rate for maximum occupancy. A proportional-anticipato U strategy will cause the fresh air supplied to increase as the room CO2 level increases even though the CO2 set point has not been reached. By the time the CO2 level roaches the set point, the damper will be at maximum ventilation and should maintain the set point.
In order to have the CO2 sensor control the economizer damper in this manner, fil.'stdetermine the damper voltage output for minimum or base ventilation. Base ventilation is the ventilation required to remove contmninants during unoccupied periods. The following equation may be used to determine the percent of outside-air entering the building for a given damper position. For best results there should be at least a
10 degree difference in outside and return-air temperatures.
OA
(To x l---ff_-) + (TR x _
RA
= TM
To = Outdoor-Air Temperature
OA = Percent of Outdoor Air
TR = Return-Air Temperature
RA = Percent of Return Air
TM = Mixed-Air Temperature
Once base ventilation has been determined, set the minimum damper position potentiometer to the correct position.
The same equation can be used to deterlnine the occupied or maximum ventilation rate to the building. For example, an output of 3.6 volts to the actuator provides a base ventilation rate of 5% and an output of 6.7 volts provides the maximum ventilation rate of 20% (or base plus 15 cfm per person). Use Fig. 43 to determine the maximum setting of the CO2 sensol: For example, a 1100 ppm set point relates to a 15 cfm per person design. Use the 1100 ppm curve on Fig. 43 to find the point when the CO2 sensor output will be 6.7 volts. Line up the point on the graph with the left side of the chart to determine that the range configuration for the CO2 sensor should be 1800 ppm. The
EconoMiSer
CO2sensor isfit1100
SETTING
TheDCVsetpointmaybeleftfit2volts sincethe CO2sensorvoltagewill be ignoredby the
Oncethefullyoccupied mined, potentiometer Donotsettofilemaximum tionasfliiscanlesultinover-ventilation
C02 Sensor Configuration -The CO2 sensor has preset standard voltage settings flint can be selected anytime after the sensor is powered up. See Table 6.
Use setting 1 or 2 for Carrier equipment.
See Table 6.
1. Pless Clear and Mode buttons.
Hold fit least 5 seconds until the sensor enters the Edit mode.
2.
Pless Mode twice. The STDSET Menu will appem:
3.
Use file Up/Down button to select the pleset numbel: See
Table 6.
4.
Pless Enter to lock in the selection.
5.
Pless Mode to exit and resume normal operation.
The custom settings of the CO2 sensor can be changed anytime after the sensor is energized.
Follow the steps below to change file non-stan&trd settings:
1. Pless Clear and Mode buttons.
Hold fit least 5 seconds until the sensor enters the Edit mode.
2.
Pless Mode twice. The STDSET Menu will appem:
3.
Use the Up/Down button to toggle to the NONSTD menu and press Entec
4.
Use the Up/Down button to toggle through each of the nine variables, stinting with Altitude, until the desired setting is reached.
5.
Press Mode to move through the variables.
6.
Press Enter to lock in the selection, then press Mode to continue to the next vmiable.
Dehumidification of Fresh Air with DCV Control -Information from ASHRAE indicates that the largest humidity load on any zone is the fresh air introduced.
For some applications, a device such as a 62AQ energy recovery unit is added to reduce the moisture content of the fresh air being brought into the building when file enthalpy is high. In most cases, the normfd
EQUIPMENT
5
6
7
3
4
1
2
Interface w/Standard
Building Control System
Economizer
8 Health & Safety
9
Parking/Air Intakes/
Loading Docks
LEGEND
ppm -- Parts Per Million heating and cooling processes are morn than adequae to mmove the humidity loads for most commemial applications.
If normal rooftop heating and cooling operation is not adequate for the outdoor humidity level, fin energy recovery unit and/or a dehumidification option should be considered.
Step 9Adjust Evaporator-Fan Speed --Adjust evaporator-fan speed to meet jobsite conditions.
Tables 7 and 8 show fan rpm fit motor pulley settings.
Tables 9 and 10 show maximum amp draw of belt-di'ive motol:
Table 11 shows sound data. Refer to Tables 12-29 for performance data. See Table 30 for accessory static pressure drop.
See Fig. 44 for the Humidi-MiZer r_q system static pressure diops.
BELT-DRIVE MOTORS -Fan motor pulleys are facto q set for speed shown in Table 1. Check pulley alignment find belt tension prior to start-up.
NOTE: Befole adjusting fan speed, make sure the new fan speed will provide an air temperature rise range as shown in
Table 1.
To change fan speed:
1. Shut off unit power supply, tag disconnect.
2.
Ix_osen belt by loosening fan motor mounting nuts. See
Fig. 45.
3.
Ix_osen movable pulley flange setscrew (see Fig. 46).
4.
Screw movable flange toward fixed flange to increase speed and away from fixed flange to decrease speed.
Increasing fan speed increases load on motol: Do not exceed maximum speed specified in Table 1.
5.
Set movable flange at nearest keyway of pulley hub and tighten setscrew.
(See Table 1 for speed change for each lull turn of pulley flange.)
To align fan and motor pulleys, loosen fan pulley setscrews find slide fan pulley along fan shaft. Make angular alignment by loosening motor from mounting.
To adjust belt tension:
1. Ix_osen fan motor mounting nuts.
2.
Slide motor mounting plate away from fan scroll for proper belt tension (1/2-in. deflection wifli 8 to 10 lb of force) and tighten mounting nuts.
3.
Adjust lock bolt and nut on mounting plate to secure motor in fixed position.
Table 6
-002
Sensor Standard Settings
OUTPUT
Proportional
Proportional
Exponential
Proportional
Proportional
Exponential
Exponential
Proportional
Proportional
VENTILATION
RATE
(cfm/Peraon)
Any
Any
Any
15
20
15
2O
ANALOG
OUTPUT
0-10V
4-20 mA
2-10V
7-20 mA
0-10V
4-20 mA
0-10V
4-20 mA
0-10V
4-20 mA
0-10V
4-20 mA
0-10V
4-20 mA
0-10V
4-20 mA
0-10V
4-20 mA
002
CONTROLRANGE
(ppm)
0-2000
0-2000
0-2000
0-1100
0900
0-1100
0900
0-9999
0-2000
OPTIONAL
RELAY SETPOINT
(ppm)
1000
1000
1100
1100
900
1100
900
5000
7OO
RELAY
HYSTERESIS
(ppm)
5O
5O
5O
5O
5O
5O
5O
5OO
5O
25
0.35
0.25 -
0.1
0.05
0
0 i
1000 i
2000 i
3000 i
4000
[
5000 6000
Fig. 44 -- Humidi-MiZer
TM
Adaptive Dehumidification System Static Pressure Drop (in. wg)
4&5ton
6 ton
3 ton
STRAIGHT EDGE MUST
WITH BELT
MOVABLE
FLANGE
MOTOR AND FAN
SHAFTS MUST BE
PARALLEL
SETSCREW£__'_
FIXED FLANGE
SINGLE-GROOVE
MOTOR MOUNTING
PLATE NUTS
Fig. 45 -- Belt-Drive Motor Mounting
Fig. 46 -- Evaporator-Fan Pulley Adjustment
Table 7 -- 48HJ Fan Rpm at Motor Pulley Setting With Standard Motor*
UNIT
48HJ
004
005
006
007
0
1044
1185
1460
1585 l&
1008
1144
1425
1538
1
971
1102
1389
1492
*Approximate fan rpm shown (standard motor/drive).
11_
935
1061
1354
1445
2
898
1019
1318
MOTOR PULLEY TURNS OPEN
2_& 3 3 l&
862 826 789
978
1283
936
1248
895
1212
1399 1352 1305 1259
4
753
853
1177
1212
4_
716
812
1141
1166
5
680
770
1106
1119
5 l&
--
--
1070
--
Table 8 -- 48HJ Fan Rpm at Motor Pulley Setting With High-Static Motor*
UNIT
48HJ
004
005
006
007
O
1455
1455
1685
1685 l&
1423
1423
1589
1589
1
1392
1392
1557
1557
1 l&
1360
1360
1525
1525
*Approximate fan rpm shown (high-static motor/drive).
2
1328
1328
1493
1493
MOTOR PULLEY TURNS OPEN
21&
1297
3
1265
3 l&
1233
1297
1460
1460
1265
1428
1428
1233
1396
1396
4
1202
1202
1364
1364
4 l&
1170
1170
1332
1332
5
1138
1138
1300
1300
5 l&
1107
1107
--
--
6
1075
1075
--
--
6
--
--
1035
--
26
UNIT
48HJ
O04
005
006
UNIT
PHASE
Single
Three
Single
Three
Single
Three
007 Three
LEGEND
Bhp i Brake Horsepower
Table 9 -- Evaporator-Fan Motor Data -- Standard Motor
MAXIMUM
CONTINUOUS
1.20
BHP*
1.20
1.20
1.20
1.30
2.40
2.40
MAXIMUM
OPERATING
1000
1000
1000
1000
1650
2120
2120
WATTS*
UNIT VOLTAGE
575
208_30
208_30
460
575
208_30
460
575
208_30
208_30
460
575
208_30
208_30
460
MAXIMUM
AMPDRAW
4.9
4.9
2.2
2.2
10.1
6.7
3.0
2.2
4.9
4.9
2.2
3.0
6.7
3.0
3.0
*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence.
Using the fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure.
Unit warranty will not be affected.
UNIT
48HJ
004
005
006
UNIT
PHASE
Three
Three
Three
007 Three
LEGEND
Bhp -Brake Horsepower
Table 10Evaporator-Fan Motor DataHigh-Static Motors
MAXIMUM
CONTINUOUS BHP*
2.40
2.40
2.90
2.90
MAXIMUM
OPERATING
2120
2120
2615
2615
WATTS*
UNIT VOLTAGE
208/230
460
575
208/230
460
575
208/230
460
575
208/230
460
575
MAXIMUM
AMP DRAW
6.7
3.0
3.0
6.7
3.0
3.0
8.6
3.9
3.9
8.6
3.9
3.9
*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence.
Using the fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure.
Unit warranty will not be affected.
Table 11 -- Outdoor Sound Power (Total Unit)
UNIT
48HJ
004,005
ARI
RATING
(decibels)
76
63
55.9
125
66.0
006,007 80
LEGEND
59.1
ARI -Air Conditioning and Refrigeration Institute
68.9
250
64.0
68.7
OCTAVE BANDS
500
66.2
71.9
1000
68.4
74.0
2000
64.5
68.9
4000
61.7
65.7
8000
57.3
59.0
GENERAL FAN PERFORMANCE NOTES
1. Values include losses for filters, unit casing, and wet coils. See Table 30 and Fig. 44 for accessory/FlOP static pressure information.
2. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence.
Using the fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Tables 9 and 10 on this page for additional information.
3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.
4. Interpolation is permissible.
Do not extrapolate.
27
AIRFLOW
CFM
900
1000
1100
1200
1300
1400
1500
Table 12 -- Fan Performance 48HJ004 -- Vertical Discharge Units; Standard Motor (Belt Drive)*
Rpm
567
599
632
666
701
737
773
0.2
Bhp
0.15
0.18
0.22
0.26
0.31
0.36
0.42
Watts
145
177
215
257
306
361
422
Rpm
688
717
747
778
810
842
875
0.4
Bhp
0.22
0.27
0.31
0.37
0.43
0.49
0.57
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
222
265
313
367
426
491
564
Rpm
786
814
842
871
901
931
963
Bhp
0.30
0.35
0.41
0.47
0.54
0.62
0.70
Watts
296
349
407
471
540
616
699
Rpm
871
897
925
952
981
1010
1040
0.8
Bhp
0.37
0.43
0.50
0.57
0.65
0.74
0.84
Watts
368
430
498
572
651
738
831
Rpm
947
972
999
1025
1053
1081
1110
1.0
Bhp
0.44
0.51
0.59
0.67
0.76
0.86
0.96
Watts
437
509
587
670
760
856
960
AIRFLOW
CFM
90O
1000
1100
1200
1300
1400
1500
Rpm
1016
1041
1066
1093
1119
1147
1175
1.2
Bhp
0.51
0.59
0.68
0.77
0.87
0.98
1.09
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
505
587
674
767
866
972
1086
Rpm
1080
1104
1129
1155
1181
1208
............
1.4
Bhp
0.57
0.67
0.76
0.87
0.98
1.09
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
572
662
759
861
970
1086
*Motor drive range: 680 to 1044 rpm. All other rpms require fieldsupplied drive.
Rpm
1139
1163
1188
1213
1239
.........
Bhp
0.64
0.74
0.85
0.96
1.08
NOTES:
Watts
637
737
843
955
1073
Rpm
1195
1219
1243
1268
1294
1.8
Bhp
0.71
0.81
0.93
1.05
1.18
Watts
702
811
925
1047
1175
Rpm
1249
1272
1296
1321
--
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.20.
3. See page 27 for general fan performance notes.
2.0
Bhp
0.77
0.89
1.01
1.14
--
Watts
765
883
1007
1137
--
Table 13 -- Fan Performance 48HJ004 --Vertical Discharge Units; High-Static Motor (Belt Drive)*
AIRFLOW
CFM
90O
1000
1100
1200
1300
1400
1500
Rpm
567
599
632
666
701
737
773
0.2
Bhp
0.15
0.18
0.22
0.26
0.31
0.36
0.42
Watts
145
177
215
257
306
361
422
Rpm
688
717
747
778
810
842
875
0.4
Bhp
0.22
0.27
0.31
0.37
0.43
0.49
0.57
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
222
265
313
367
426
491
564
Rpm
786
814
842
871
901
931
963
Bhp
0.30
0.35
0.41
0.47
0.54
0.62
0.70
Watts
296
349
407
471
540
616
699
Rpm
871
897
925
952
981
1010
1040
0.8
Bhp
0.37
0.43
0.50
0.57
0.65
0.74
0.84
Watts
368
430
498
572
651
738
831
Rpm
947
972
999
1025
1053
1081
1110
1.0
Bhp
0.44
0.51
0.59
0.67
0.76
0.86
0.96
Watts
437
509
587
670
760
856
960
AIRFLOW
Bhp
CFM
90O
1000
1100
1200
1300
1400
1500
Watts
--
--
Rpm
1016
1041
1066
1093
1119
1147
1175
LEGEND
1.2
Bhp
0.51
0.59
0.68
0.77
0.87
0.98
1.09
Brake Horsepower
Input Watts to Motor
Watts
505
587
674
767
866
972
1086
Rpm
1080
1104
1129
1155
1181
1208
1235
1.4
Bhp
0.57
0.67
0.76
0.87
0.98
1.09
1.22
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
572
662
759
861
970
1086
1209
Rpm
1139
1163
1188
1213
1239
1265
1292
Bhp
0.64
0.74
0.85
0.96
1.08
1.21
1.34
Watts
637
737
843
955
1073
1199
1332
Rpm
1195
1219
1243
1268
1294
1320
1346
1.8
Bhp
0.71
0.81
0.93
1.05
1.18
1.32
1.46
Watts
702
811
925
1047
1175
1310
1452
Rpm
1249
1272
1296
1321
1346
1371
1397
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
3. See page 27 for general fan performance notes.
2.0
Bhp
0.77
0.89
1.01
1.14
1.28
1.43
1.58
*Motor drive range: 1075 to 1455 rpm. All other rpms require fieldsupplied drive.
Watts
765
883
1007
1137
1275
1419
1572
28
AIRFLOW
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
Table 14 -- Fan Performance 48HJ005 -- Vertical Discharge Units; Standard Motor (Belt Drive)*
Rpm
666
701
737
773
810
847
885
923
962
0.2
Bhp
0.26
0.31
0.36
0.42
0.49
0.57
0.66
0.75
0.85
Watts
257
306
361
422
491
567
652
745
847
Rpm
778
810
842
875
909
943
978
1014
1049
0.4
Bhp
0.37
0.43
0.49
0.57
0.65
0.73
0.83
0.94
1.05
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
367
426
491
564
643
730
826
930
1043
Rpm
871
901
931
963
994
1027
1060
1093
.........
Bhp
0.47
0.54
0.62
0.70
0.79
0.89
1.00
1.11
Watts
471
540
616
699
790
888
994
1109
Rpm
952
981
1010
1040
1070
1101
1133
......
0.8
Bhp
0.57
0.65
0.74
0.84
0.94
1.05
1.16
Watts
572
651
738
831
932
1040
1157
Rpm
1025
1053
1081
1110
1140
1170
--
1.0
Bhp
0.67
0.76
0.86
0.96
1.08
1.20
--
Watts
670
760
856
960
1070
1189
--
AIRFLOW
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
Rpm
1093
1119
1147
1175
1.2
Bhp
0.77
0.87
0.98
1.09
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
767
866
972
1086
Rpm
1155
1181
1208
............
1.4
Bhp
0.87
0.98
1.09
EXTERNAL STATIC PRESSURE (in. wg)
Watts
861
970
1086
*Motor drive range: 770 to 1185 rpm. All other rpms require fieldsupplied drive.
Rpm
1213
1239
.........
1.6
Bhp
0.96
1.08
NOTES:
Watts
955
1073
Rpm
1268
1294
1.8
Bhp
1.05
1.18
Watts
1047
1175
Rpm
1321
--
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.20.
3. See page 27 for general fan performance notes.
2.0
Bhp
1.14
--
Watts
1137
--
AIRFLOW
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
Table 15 -- Fan Performance 48HJ005 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*
Rpm
666
701
737
773
810
847
885
923
962
0.2
Bhp
0.26
0.31
0.36
0.42
0.49
0.57
0.66
0.75
0.85
Watts
257
306
361
422
491
567
652
745
847
Rpm
778
810
842
875
909
943
978
1014
1049
0.4
Bhp
0.37
0.43
0.49
0.57
0.65
0.73
0.83
0.94
1.05
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
367
426
491
564
643
730
826
930
1043
Rpm
871
901
931
963
994
1027
1060
1093
1127
Bhp
0.47
0.54
0.62
0.70
0.79
0.89
1.00
1.11
1.24
Watts
471
540
616
699
790
888
994
1109
1233
Rpm
952
981
1010
1040
1070
1101
1133
1165
1198
0.8
Bhp
0.57
0.65
0.74
0.84
0.94
1.05
1.16
1.29
1.42
Watts
572
651
738
831
932
1040
1157
1283
1417
Rpm
1025
1053
1081
1110
1140
1170
1200
1231
1263
1.0
Bhp
0.67
0.76
0.86
0.96
1.08
1.20
1.32
1.46
1.61
Watts
670
760
856
960
1070
1189
1316
1453
1598
AIRFLOW
Bhp
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
Rpm
1093
1119
1147
1175
1204
1233
1262
1293
1323
LEGEND
1.2
Bhp
0.77
0.87
0.98
1.09
1.21
1.34
1.48
1.63
1.79
-Brake Horsepower
Watts -Input Watts to Motor
Watts
767
866
972
1086
1207
1336
1473
1620
1776
Rpm
1155
1181
1208
1235
1263
1292
1321
1350
1380
1.4
Bhp
0.87
0.98
1.09
1.22
1.35
1.49
1.64
1.79
1.96
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
861
970
1086
1209
1340
1480
1627
1784
1950
Rpm
1213
1239
1265
1292
1320
1348
1376
1405
1434
Bhp
0.96
1.08
1.21
1.34
1.48
1.63
1.79
1.96
2.13
Watts
955
1073
1199
1332
1472
1622
1779
1946
2123
Rpm
1268
1294
1320
1346
1373
1401
1428
1457
1486
1.8
Bhp
1.05
1.18
1.32
1.46
1.61
1.77
1.94
2.12
2.31
Watts
1047
1175
1310
1452
1603
1762
1930
2106
2293
Rpm
1321
1346
1371
1397
1424
1451
1479
1506
--
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40,
3. See page 27 for general fan performance notes.
2.0
Bhp
1.14
1.28
1.43
1.58
1.74
1.91
2.09
2.28
--
*Motor drive range: 1075 to 1455 rpm. All other rpms require fieldsupplied drive.
Watts
1137
1275
1419
1572
1732
1901
2078
2265
--
29
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Rpm
848
887
927
967
1007
1048
1090
1131
1173
Table 16 -- Fan Performance 48HJ006, Single-Phase -- Vertical Discharge Units;
Standard Motor (Belt Drive)*
0.2
Bhp
0.42
0.49
0.57
0.65
0.75
0.85
0.97
1.09
1.23
Watts
371
433
502
579
663
757
859
970
1091
0.4
Rpm
968
1004
1040
1077
1115
1153
1191
1230
............
Bhp
0.55
0.63
0.71
0.81
0.91
1.03
1.15
1.29
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
486
556
633
718
811
913
1023
1143
Rpm
1069
1103
1137
1172
1208
1244
.........
.........
Bhp
0.68
0.76
0.86
0.96
1.08
1.20
Watts
600
678
763
856
957
1066
Rpm
1158
1190
1223
1257
1291
......
0.8
Bhp
0.80
0.90
1.00
1.12
1.24
Watts
715
800
892
993
1101
Rpm
1238
1269
1302
1334
--
1.0
Bhp
0.94
1.04
1.15
1.27
--
Watts
831
922
1022
1130
--
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Rpm
1312
1342
1374
1.2
Bhp
1.07
1.18
1.30
Watts
948
1047
1153
..............
..............
..............
..............
..............
..............
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Rpm
1380
............
............
1.4
Bhp
1.20
EXTERNAL STATIC PRESSURE (in. wg)
Watts
1067
*Motor drive range: 1035 to 1460 rpm. All other rpms require fieldsupplied drive.
Rpm
.........
1.6
Bhp
NOTES:
Watts Rpm
1.8
Bhp Watts Rpm
1. Boldface indicates field-supplied drive is required,
2. Maximum continuous bhp is 1.30.
3. See page 27 for general fan performance notes.
2.0
Bhp Watts m m m m m m
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Rpm
848
887
927
967
1007
1048
1090
1131
1173
1215
1258
Table 17 -- Fan Performance 48HJ006, Three-Phase -- Vertical Discharge Units;
Standard Motor (Belt Drive)*
0.2
Bhp
0.42
0.49
0.57
0.65
0.75
0.85
0.97
1.09
1.23
1.38
1.54
Watts
371
433
502
579
663
757
859
970
1091
1223
1365
Rpm
968
1004
1040
1077
1115
1153
1191
1230
1269
1309
1349
0.4
Bhp
0.55
0.63
0.71
0.81
0.91
1.03
1.15
1.29
1.43
1.59
1.76
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
486
556
633
718
811
913
1023
1143
1273
1413
1564
Rpm
1069
1103
1137
1172
1208
1244
1281
1318
1355
1393
1431
Bhp
0.68
0.76
0.86
0.96
1.08
1.20
1.33
1.48
1.63
1.80
1.98
Watts
600
678
763
856
957
1066
1185
1313
1451
1600
1759
Rpm
1158
1190
1223
1257
1291
1326
1361
1397
1433
1470
1506
0.8
Bhp
0.80
0.90
1.00
1.12
1.24
1.37
1.51
1.67
1.83
2.01
2.20
Watts
715
800
892
993
1101
1219
1345
1481
1627
1784
1951
Rpm
1238
1269
1302
1334
1368
1401
1435
1470
1505
1540
--
1.0
Bhp
0.94
1.04
1.15
1.27
1.40
1.54
1.69
1.86
2.03
2.21
--
Watts
831
922
1022
1130
1246
1371
1505
1649
1803
1967
--
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Rpm
1312
1342
1374
1406
1438
1471
1504
1538
1572
1.2
Bhp
1.07
1.18
1.30
1.43
1.57
1.72
1.87
2.04
2.23
Watts
948
1047
1153
1268
1391
1523
1665
1816
1978
Rpm
1380
1411
1441
1473
1504
1536
1569
1602
............
1.4
Bhp
1.20
1.32
1.45
1.58
1.73
1.89
2.06
2.23
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1067
1173
1286
1407
1537
1677
1825
1984
LEGEND
Bhp -Brake Horsepower
Wa_s -Input Watts to Motor
*Motor drive range: 1035 to 1460 rpm. All other rpms require fieldsupplied drive.
Rpm
1445
1474
1505
1535
1567
1598
1630
.........
Bhp
1.34
1.46
1.60
1.74
1.90
2.06
2.24
NOTES:
Watts
1189
1300
1420
1548
1685
1831
1986
1.8
Rpm
1506
1535
1565
Bhp
1.48
1.61
1.75
1595
1626
1657
......
1.90
2.06
2.24
Watts
1312
1429
1555
1690
1833
1986
Rpm
1564
1593
1622
1652
1682
--
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2,40.
3. See page 27 for general fan performance notes.
2.0
Bhp
1.62
1.76
1.91
2.06
2.23
--
Watts
1437
1560
1692
1833
1983
--
3O
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Table 18 -- Fan Performance 48HJ006 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*
Rpm
848
887
927
967
1007
1048
1090
1131
1173
1215
1258
0.2
Bhp
0.42
0.49
0.57
0.65
0.75
0.85
0.97
1.09
1.23
1.38
1.54
Watts
371
433
502
579
663
757
859
970
1091
1223
1365
Rpm
968
1004
1040
1077
1115
1153
1191
1230
1269
1309
1349
0.4
Bhp
0.55
0.63
0.71
0.81
0.91
1.03
1.15
1.29
1.43
1.59
1.76
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
486
556
633
718
811
913
1023
1143
1273
1413
1564
Rpm
1069
1103
1137
1172
1208
1244
1281
1318
1355
1393
1431
Bhp
0.68
0.76
0.86
0.96
1.08
1.20
1.33
1.48
1.63
1.80
1.98
Watts
600
678
763
856
957
1066
1185
1313
1451
1600
1759
Rpm
1158
1190
1223
1257
1291
1326
1361
1397
1433
1470
1506
0.8
Bhp
0.80
0.90
1.00
1.12
1.24
1.37
1.51
1.67
1.83
2.01
2.20
Watts
715
800
892
993
1101
1219
1345
1481
1627
1784
1951
Rpm
1238
1269
1302
1334
1368
1401
1435
1470
1505
1540
1576
1.0
Bhp
0.94
1.04
1.15
1.27
1.40
1.54
1.69
1.86
2.03
2.21
2.41
Watts
831
922
1022
1130
1246
1371
1505
1649
1803
1967
2142
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Rpm
1312
1342
1374
1406
1438
1471
1504
1538
1572
1607
1642
LEGEND
1.2
Bhp
1.07
1.18
1.30
1.43
1.57
1.72
1.87
2.04
2.23
2.42
2.63
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
948
1047
1153
1268
1391
1523
1665
1816
1978
2150
2333
Rpm
1380
1411
1441
1473
1504
1536
1569
1602
1635
1669
1704
1.4
Bhp
1.20
1.32
1.45
1.58
1.73
1.89
2.06
2.23
2.42
2.63
2.84
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1067
1173
1286
1407
1537
1677
1825
1984
2153
2332
2523
Rpm
1445
1474
1505
1535
1567
1598
1630
1663
1695
1729
.........
Bhp
1.34
1.46
1.60
1.74
1.90
2.06
2.24
2.42
2.62
2.83
Watts
1189
1300
1420
1548
1685
1831
1986
2152
2328
2515
Rpm
1506
1535
1565
1595
1626
1657
1688
1720
1753
......
*Motor drive range: 1300 to 1685 rpm. All other rpms require fieldsupplied drive.
1.8
Bhp
1.48
1.61
1.75
1.90
2.06
2.24
2.42
2.61
2.82
Watts
1312
1429
1555
1690
1833
1986
2149
2321
2504
Rpm
1564
1593
1622
1652
1682
1713
1744
1775
--
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.90.
3. See page 27 for general fan performance notes.
2.0
Bhp
1.62
1.76
1.91
2.06
2.23
2.41
2.60
2.81
--
Watts
1437
1560
1692
1833
1983
2142
2312
2491
--
AIRFLOW
CFM
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
Table 19 -- Fan Performance 48HJ007 -- Vertical Discharge Units; Standard Motor (Belt Drive)*
Rpm
967
1008
1049
1091
1133
1176
1216
1261
1305
1348
1392
1435
1479
0.2
Bhp
0.63
0.72
0.82
0.93
1.05
1.18
1.32
1.47
1.63
1.80
1.99
2.19
2.40
Watts
563
643
731
827
933
1047
1170
1304
1448
1602
1768
1945
2135
0.4
Rpm
1075
1112
1151
1189
1229
1268
1308
1349
1390
1431
1472
............
............
Bhp
0.80
0.91
1.02
1.14
1.26
1.40
1.55
1.72
1.89
2.07
2.27
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
715
805
903
1008
1123
1247
1380
1523
1677
1841
2016
Rpm
1170
1205
1241
1276
1315
1352
1390
1429
1468
1507
.........
Bhp
0.97
1.08
1.20
1.33
1.47
1.62
1.78
1.96
2.14
2.33
Watts
861
960
1068
1183
1308
1441
1584
1736
1900
2073
Rpm
1255
1289
1323
1358
1393
1429
1466
1503
1540
......
0.8
Bhp
1.13
1.25
1.38
1.52
1.67
1.84
2.01
2.19
2.38
Watts
1002
1111
1228
1353
1487
1630
1782
1945
2117
Rpm
1333
1366
1399
1433
1467
1501
1537
--
--
1.0
Bhp
1.28
1.42
1.56
1.71
1.67
2.04
2.23
--
--
Watts
1139
1258
1384
1519
1662
1815
1977
--
--
AIRFLOW
CFM
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
Rpm
1406
1438
1470
1502
1535
1569
1.2
Bhp
1.43
1.58
1.73
1.89
2.06
2.25
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
1273
1401
1537
1681
1834
1996
Rpm
1475
1505
1537
1568
1600
............
1.4
Bhp
1.58
1.73
1.90
2.07
2.25
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1403
1541
1686
1840
2002
*Motor drive range: 1119 to 1585 rpm. All other rpms require fieldsupplied drive.
Rpm
1540
1569
1600
1631
.........
Bhp
1.72
1.89
2.06
2.25
NOTES:
Watts
1531
1678
1833
1996
Rpm
1601
1630
1660
--
1.8
Bhp
1.87
2.04
2.23
Watts
1657
1813
1977
Rpm
1660
1689
1718
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
3. See page 27 for general fan performance notes.
2.0
Bhp
2.00
2.19
2.38
3!
Watts
1780
1945
2118
AIRFLOW
CFM
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
Table 20 -- Fan Performance 48HJ007 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*
Rpm
967
1008
1049
1091
1133
1176
1218
1261
1305
1348
1392
1435
1479
0.2
Bhp
0.63
0.72
0.82
0.93
1.05
1.18
1.32
1.47
1.63
1.80
1.99
2.19
2.40
Watts
563
643
731
827
933
1047
1170
1304
1448
1602
1768
1945
2135
Rpm
1075
1112
1151
1189
1229
1268
1308
1349
1390
1431
1472
1514
1556
0.4
Bhp
0.80
0.91
1.02
1.14
1.26
1.40
1.55
1.72
1.89
2.07
2.27
2.48
2.70
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
715
805
903
1008
1123
1247
1380
1523
1677
1841
2016
2203
2402
Rpm
1170
1205
1241
1278
1315
1352
1390
1429
1468
1507
1547
1587
.........
Bhp
0.97
1.08
1.20
1.33
1.47
1.62
1.78
1.96
2.14
2.33
2.54
2.76
Watts
861
960
1068
1183
1308
1441
1584
1736
1900
2073
2258
2455
Rpm
1255
1289
1323
1358
1393
1429
1466
1503
1540
1578
1616
......
0.8
Bhp
1.13
1.25
1.38
1.52
1.67
1.84
2.01
2.19
2.38
2.59
2.81
Watts
1002
1111
1228
1353
1487
1630
1782
1945
2117
2301
2495
Rpm
1333
1366
1399
1433
1467
1501
1537
1572
1608
1645
--
1.0
Bhp
1.28
1.42
1.56
1.71
1.87
2.04
2.23
2.42
2.62
2.84
--
Watts
1139
1258
1384
1519
1662
1815
1977
2149
2331
2524
--
AIRFLOW
CFM
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
Rpm
1406
1438
1470
1502
1535
1569
1603
1638
1673
1.2
Bhp
1.43
1.58
1.73
1.89
2.06
2.25
2.44
2.64
2.86
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
1273
1401
1537
1681
1834
1996
2167
2349
2541
Rpm
1475
1505
1537
1568
1600
1633
1666
1700
............
1.4
Bhp
1.58
1.73
1.90
2.07
2.25
2.45
2.65
2.87
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1403
1541
1686
1840
2002
2174
2355
2546
*Motor drive range: 1300 to 1685 rpm. All other rpms require fieldsupplied drive.
Rpm
1540
1569
1600
1631
1662
1694
1727
.........
Bhp
1.72
1.89
2.06
2.25
2.44
2.64
2.86
NOTES:
Watts
1531
1678
1833
1996
2167
2348
2539
Rpm
1601
1630
1660
1690
1721
1752
......
1.8
Bhp
1.87
2.04
2.23
2.42
2.62
2.84
Watts
1657
1813
1977
2149
2330
2520
Rpm
1660
1689
1718
1747
1778
--
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.90.
3. See page 27 for general fan performance notes.
2.0
Bhp
2.00
2.19
2.38
2.59
2.80
--
Watts
1780
1945
2118
2300
2490
--
AIRFLOW
CFM
90O
1000
1100
1200
1300
1400
1500
Table 21 -- Fan Performance 48HJ004 -- Horizontal Discharge Units; Standard Motor (Belt Drive)*
Rpm
553
582
612
643
675
707
740
0.2
Bhp
0.14
0.16
0.20
0.23
0.28
0.33
0.38
Watts
134
163
196
234
277
326
382
Rpm
681
707
734
762
790
819
849
0.4
Bhp
0.22
0.26
0.30
0.34
0.40
0.45
0.52
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
221
257
297
343
394
452
515
Rpm
782
807
833
859
886
913
941
Bhp
0.32
0.36
0.41
0.46
0.52
0.58
0.66
Watts
316
358
405
458
517
581
653
Rpm
870
894
919
944
969
996
1023
0.8
Bhp
0.42
0.47
0.52
0.58
0.65
0.72
0.80
Watts
417
466
519
579
644
716
795
Rpm
948
971
995
1020
1044
1070
1096
1.0
Bhp
0.53
0.58
0.64
0.71
0.78
0.86
0.95
Watts
526
580
639
705
777
855
941
AIRFLOW
CFM
90O
1000
1100
1200
1300
1400
1500
Rpm
1019
1042
1065
1089
1113
1138
1163
1.2
Bhp
0.64
0.70
0.77
0.84
0.92
1.01
1.10
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
640
700
765
837
915
1000
1092
Rpm
1084
1107
1130
1153
1177
1201
............
1.4
Bhp
0.76
0.83
0.90
0.98
1.06
1.15
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
760
825
896
974
1058
1149
*Motor drive range: 680 to 1044 rpm. All other rpms require fieldsupplied drive.
Rpm
1146
1168
1190
1213
.........
.........
Bhp
0.89
0.96
1.04
1.12
NOTES:
Watts
885
956
1032
1115
Rpm
1203
1225
1247
......
1.8
Bhp
1.02
1.10
1.18
Watts
1016
1091
1173
Rpm
1258
--
--
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.20.
3. See page 27 for general fan performance notes.
2.0
Bhp
1.16
--
--
Watts
1152
--
--
32
AIRFLOW
CFM
900
1000
1100
1200
1300
1400
1500
Table 22 i Fan Performance 48HJ004 i Horizontal Discharge Units; High-Static Motor (Belt Drive)*
Rpm
553
582
612
643
675
707
740
0.2
Bhp
0.14
0.16
0.20
0.23
0.28
0.33
0.38
Watts
134
163
196
234
277
326
382
Rpm
681
707
734
762
790
819
849
0.4
Bhp
0.22
0.26
0.30
0.34
0.40
0.45
0.52
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
221
257
297
343
394
452
515
Rpm
782
807
833
859
886
913
941
Bhp
0.32
0.36
0.41
0.46
0.52
0.58
0.66
Watts
316
358
405
458
517
581
653
Rpm
870
894
919
944
969
996
1023
0.8
Bhp
0.42
0.47
0.52
0.58
0.65
0.72
0.80
Watts
417
466
519
579
644
716
795
Rpm
948
971
995
1020
1044
1070
1096
1.0
Bhp
0.53
0.58
0.64
0.71
0.78
0.86
0.95
Watts
526
580
639
705
777
855
941
AIRFLOW
Bhp
CFM
900
1000
1100
1200
1300
1400
1500
Watts
--
--
Rpm
1019
1042
1065
1089
1113
1138
1163
LEGEND
1.2
Bhp
0.64
0.70
0.77
0.84
0.92
1.01
1.10
Brake Horsepower
Input Watts to Motor
Watts
640
700
765
837
915
1000
1092
Rpm
1084
1107
1130
1153
1177
1201
1226
1.4
Bhp
0.78
0.83
0.90
0.98
1.08
1.15
1.25
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
780
825
896
974
1058
1149
1247
Rpm
1146
1168
1190
1213
1237
1261
1285
Bhp
0.89
0.96
1.04
1.12
1.21
1.31
1.41
Watts
885
958
1032
1115
1205
1303
1407
Rpm
1203
1225
1247
1270
1293
1317
1341
1.8
Bhp
1.02
1.10
1.18
1.27
1.36
1.47
1.58
Watts
1018
1091
1173
1262
1358
1461
1571
Rpm
1258
1279
1301
1324
1347
1370
1394
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
3. See page 27 for general fan performance notes.
2.0
Bhp
1.18
1.24
1.33
1.42
1.52
1.63
1.75
*Motor drive range: 1075 to 1455 rpm. All other rpms require fieldsupplied drive.
Watts
1152
1232
1319
1413
1514
1623
1740
Table 23 i Fan Performance 48HJ005 i Horizontal Discharge Units; Standard Motor (Belt Drive)*
AIRFLOW
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
Rpm
643
675
707
740
773
807
841
875
910
0.2
Bhp
0.23
0.28
0.33
0.38
0.45
0.52
0.59
0.68
0.77
Watts
234
277
326
382
444
513
589
674
767
Rpm
762
790
819
849
879
910
942
974
1006
0.4
Bhp
0.34
0.40
0.45
0.52
0.59
0.87
0.75
0.85
0.95
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
343
394
452
515
586
683
749
842
944
Rpm
859
886
913
941
970
999
1029
1059
1090
Bhp
0.48
0.52
0.58
0.66
0.73
0.82
0.91
1.02
1.13
Watts
458
517
581
653
731
817
910
1012
1122
Rpm
944
989
996
1023
1050
1078
1106
1135
......
0.8
Bhp
0.58
0.65
0.72
0.80
0.88
0.98
1.08
1.19
Watts
579
644
716
795
880
973
1074
1184
Rpm
1020
1044
1070
1096
1123
1150
--
--
1.0
Bhp
0.71
0.78
0.86
0.95
1.04
1.14
--
--
Watts
705
777
855
941
1034
1134
--
--
AIRFLOW
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
Rpm
1089
1113
1138
1163
1189
1.2
Bhp
0.84
0.92
1.01
1.10
1.20
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
837
915
1000
1092
1191
Rpm
1153
1177
1201
............
............
1.4
Bhp
0.98
1.06
1.15
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
974
1058
1149
*Motor drive range: 770 to 1185 rpm. All other rpms require fieldsupplied drive.
Rpm
1213
.........
.........
Bhp
1.12
NOTES:
Watts
1115
Rpm
......
1.8
Bhp Watts Rpm
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.20.
3. See page 27 for general fan performance notes.
2.0
Bhp Watts
33
AIRFLOW
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
Table 24 i Fan Performance 48HJ005 i Horizontal Discharge Units; High-Static Motor (Belt Drive)*
Rpm
643
675
707
740
773
807
841
875
910
0.2
Bhp
0.23
0.28
0.33
0.38
0.45
0.52
0.59
0.68
0.77
Watts
234
277
326
382
444
513
589
674
767
Rpm
762
790
819
849
879
910
942
974
1006
0.4
Bhp
0.34
0.40
0.45
0.52
0.59
0.67
0.75
0.85
0.95
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
343
394
452
515
586
663
749
842
944
Rpm
859
886
913
941
970
999
1029
1059
1090
Bhp
0.46
0.52
0.58
0.66
0.73
0.82
0.91
1.02
1.13
Watts
458
517
581
653
731
817
910
1012
1122
Rpm
944
969
996
1023
1050
1078
1106
1135
1185
0.8
Bhp
0.58
0.65
0.72
0.80
0.88
0.98
1.08
1.19
1.31
Watts
579
644
716
795
880
973
1074
1184
1302
Rpm
1020
1044
1070
1096
1123
1150
1177
1205
1234
1.0
Bhp
0.71
0.78
0.86
0.95
1.04
1.14
1.25
1.37
1.49
Watts
705
777
855
941
1034
1134
1242
1360
1485
AIRFLOW
Bhp
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
Rpm
1089
1113
1138
1163
1189
1216
1242
1270
1297
LEGEND
1.2
Bhp
0.84
0.92
1.01
1.10
1.20
1.31
1.42
1.55
1.68
-Brake Horsepower
Watts -Input Watts to Motor
Watts
837
915
1000
1092
1191
1299
1414
1538
1672
Rpm
1153
1177
1201
1226
1252
1277
1303
1330
1357
1.4
Bhp
0.98
1.06
1.15
1.25
1.36
1.48
1.60
1.73
1.87
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
974
1058
1149
1247
1353
1468
1590
1721
1862
Rpm
1213
1237
1261
1285
1310
1335
1361
1387
1414
Bhp
1.12
1.21
1.31
1.41
1.53
1.65
1.78
1.92
2.07
Watts
1115
1205
1303
1407
1520
1640
1770
1908
2055
Rpm
1270
1293
1317
1341
1365
1390
1415
1441
1467
1.8
Bhp
1.27
1.36
1.47
1.58
1.70
1.83
1.96
2.11
2.26
Watts
1262
1358
1461
1571
1690
1817
1953
2098
2252
Rpm
1324
1347
1370
1394
1418
1442
1467
1493
--
NOTES:
1. Boldface indicates field-supplied drive is required,
2. Maximum continuous bhp is 2,40.
3. See page 27 for general fan performance notes.
2.0
Bhp
1.42
1.52
1.63
1.75
1.87
2.01
2.15
2.30
--
*Motor drive range: 1075 to 1455 rpm. All other rpms require fieldsupplied drive.
Watts
1413
1514
1623
1740
1865
1998
2140
2292
--
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Table 25 i Fan Performance 48HJ006, Single-Phase i Horizontal Discharge Units;
Standard Motor (Belt Drive)*
Rpm
800
839
879
919
960
1001
1043
1085
1127
0.2
Bhp
0.39
0.46
0.54
0.63
0.73
0.84
0.96
1.09
1.23
Watts
350
412
483
561
648
744
850
966
1092
0.4
Rpm
904
938
974
1010
1047
1085
1123
1162
............
Bhp
0.49
0.57
0.65
0.75
0.85
0.96
1.09
1.22
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
438
505
580
663
754
855
965
1086
Rpm
999
1030
1062
1095
1129
1163
1199
.........
Bhp
0.60
0.68
0.77
0.87
0.98
1.09
1.22
Watts
535
605
684
771
867
972
1086
Rpm
1087
1115
1144
1174
1206
1238
......
0.8
Bhp
0.72
0.80
0.90
1.00
1.11
1.23
Watts
640
714
796
886
986
1095
Rpm
1169
1195
1221
1250
1279
--
1.0
Bhp
0.85
0.93
1.03
1.14
1.25
--
Watts
753
829
914
1008
1111
--
AIRFLOW
CFM
1.2
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Rpm
1247
1270
1295
1321 m m m m m m m
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor m m m m m m
Bhp
0.98
1.07
1.17
1.28
m
Watts
873
952
1040
1137
Rpm
1320
1342
.........
.........
1.4
Bhp
1.13
1.22
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1002
1083
Rpm
1390
......
Bhp
1.28
Watts
1137
Rpm
--
1.8
Bhp
--
Watts
--
Rpm m m m m m m m m m m m
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.30.
3. See page 27 for general fan performance notes.
2.0
Bhp m m m m m m m m m m m
*Motor drive range: 1035 to 1460 rpm. All other rpms require fieldsupplied drive.
Watts m m m m m m m m m m m
34
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Table 26 -- Fan Performance 48HJ006, Three-Phase -- Horizontal Discharge Units;
Standard Motor (Belt Drive)*
Rpm
800
839
879
919
960
1001
1043
1085
1127
1169
1212
0.2
Bhp
0.39
0.46
0.54
0.63
0.73
0.84
0.98
1.09
1.23
1.38
1.55
Watts
350
412
483
561
648
744
850
986
1092
1229
1378
Rpm
904
938
974
1010
1047
1085
1123
1162
1201
1241
1281
0.4
Bhp
0.49
0.57
0.65
0.75
0.85
0.98
1.09
1.22
1.37
1.53
1.70
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
438
505
580
663
754
855
985
1086
1217
1359
1513
Rpm
999
1030
1062
1095
1129
1163
1199
1235
1272
1310
1348
Bhp
0.60
0.68
0.77
0.87
0.98
1.09
1.22
1.36
1.52
1.68
1.88
Watts
535
605
684
771
887
972
1086
1211
1347
1493
1652
Rpm
1087
1115
1144
1174
1206
1238
1271
1305
1340
1375
1412
0.8
Bhp
0.72
0.80
0.90
1.00
1.11
1.23
1.37
1.51
1.67
1.84
2.02
Watts
640
714
796
886
986
1095
1213
1342
1482
1633
1796
Rpm
1169
1195
1221
1250
1279
1309
1340
1372
1405
1439
1473
1.0
Bhp
0.85
0.93
1.03
1.14
1.25
1.38
1.52
1.67
1.83
2.00
2.19
Watts
753
829
914
1008
1111
1224
1348
1479
1623
1778
1945
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Rpm
1247
1270
1295
1321
1348
1377
1406
1437
1468
1500
1533
1.2
Bhp
0.98
1.07
1.17
1.28
1.40
1.53
1.67
1.83
1.99
2.17
2.36
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
873
952
1040
1137
1243
1359
1485
1621
1769
1928
2098
Rpm
1320
1342
1365
1390
1415
1442
1470
1499
1529
1559
............
1.4
Bhp
1.13
1.22
1.32
1.43
1.58
1.69
1.83
1.99
2.16
2.35
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1002
1083
1173
1273
1381
1500
1629
1769
1920
2083
Rpm
1390
1411
1432
1455
1479
1505
1531
1559
1587
.........
Bhp
1.28
1.37
1.48
1.59
1.72
1.86
2.00
2.16
2.34
Watts
1137
1221
1313
1415
1526
1648
1780
1923
2077
Rpm
1457
1476
1497
1518
1541
1565
1591
1617
......
*Motor drive range: 1035 to 1460 rpm. All other rpms require fieldsupplied drive.
NOTES:
1.8
Bhp
1.44
1.54
1.64
1.76
1.89
2.03
2.18
2.34
Watts
1280
1365
1459
1563
1677
1801
1936
2082
Rpm
1522
1540
1559
1579
1601
1624
1648
--
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40,
3. See page 27 for general fan performance notes.
2.0
Bhp
1.61
1.71
1.82
1.93
2.06
2.21
2.36
--
Watts
1430
1517
1612
1718
1834
1961
2098
--
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Table 27 -- Fan Performance 48HJ006 -- Horizontal Discharge Units; High-Static Motor (Belt Drive)*
Rpm
800
839
879
919
960
1001
1043
1085
1127
1169
1212
0.2
Bhp
0.39
0.46
0.54
0.63
0.73
0.84
0.96
1.09
1.23
1.38
1.55
Watts
350
412
483
561
648
744
850
966
1092
1229
1378
Rpm
904
938
974
1010
1047
1085
1123
1162
1201
1241
1281
0.4
Bhp
0.49
0.57
0.65
0.75
0.85
0.96
1.09
1.22
1.37
1.53
1.70
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Watts
438
505
580
663
754
855
965
1086
1217
1359
1513
Rpm
999
1030
1062
1095
1129
1163
1199
1235
1272
1310
1348
Bhp
0.60
0.68
0.77
0.87
0.98
1.09
1.22
1.36
1.52
1.68
1.86
Watts
535
605
684
771
867
972
1086
1211
1347
1493
1652
Rpm
1087
1115
1144
1174
1206
1238
1271
1305
1340
1375
1412
0.8
Bhp
0.72
0.80
0.90
1.00
1.11
1.23
1.37
1.51
1.67
1.84
2.02
Watts
640
714
796
886
986
1095
1213
1342
1482
1633
1798
Rpm
1169
1195
1221
1250
1279
1309
1340
1372
1405
1439
1473
1.0
Bhp
0.85
0.93
1.03
1.14
1.25
1.38
1.52
1.87
1.83
2.00
2.19
Watts
753
829
914
1008
1111
1224
1346
1479
1623
1778
1945
AIRFLOW
CFM
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
Rpm
1247
1270
1295
1321
1348
1377
1406
1437
1488
1500
1533
1.2
Bhp
0.98
1.07
1.17
1.28
1.40
1.53
1.67
1.83
1.99
2.17
2.36
LEGEND
Bhp -Brake Horsepower
Watts -Input Watts to Motor
Watts
873
952
1040
1137
1243
1359
1485
1621
1769
1928
2098
Rpm
1320
1342
1365
1390
1415
1442
1470
1499
1529
1559
1591
1.4
Bhp
1.13
1.22
1.32
1.43
1.58
1.69
1.83
1.99
2.16
2.35
2.54
*Motor drive range: 1300 to 1685 rpm. All other rpms require fieldsupplied drive.
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1002
1083
1173
1273
1381
1500
1629
1769
1920
2083
2257
Rpm
1390
1411
1432
1455
1479
1505
1531
1559
1587
1616
1647
Bhp
1.28
1.37
1.48
1.59
1.72
1.88
2.00
2.16
2.34
2.53
2.73
Watts
1137
1221
1313
1415
1528
1648
1780
1923
2077
2243
2421
Rpm
1457
1476
1497
1518
1541
1565
1591
1617
1644
1672
......
NOTES:
1.8
Bhp
1.44
1.54
1.64
1.78
1.89
2.03
2.18
2.34
2.52
2.71
Watts
1280
1365
1459
1563
1677
1801
1938
2082
2239
2408
Rpm
1522
1540
1559
1579
1601
1624
1648
1673
1699
1726
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.90.
3. See page 27 for general fan performance notes.
2.0
Bhp
1.61
1.71
1.82
1.93
2.08
2.21
2.36
2.53
2.71
2.90
35
Watts
1430
1517
1612
1718
1834
1961
2098
2246
2406
2579
Table 28 -- Fan Performance 48HJ007 -- Horizontal Discharge Units; Standard Motor (Belt Drive)* wg)
AIRFLOW
CFM
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
Rpm
913
952
992
1032
1073
1114
1155
1196
1238
1280
1322
1364
0.2
Bhp
0.64
0.73
0.84
0.95
1.07
1.21
1.36
1.51
1.69
1.87
2.07
2.28
Watts
569
652
744
844
954
1074
1204
1345
1497
1660
1835
2023
Rpm
1010
1046
1083
1120
1158
1196
1234
1273
1312
1352
1392
............
0.4
Bhp
0.80
0.91
1.02
1.14
1.27
1.41
1.57
1.73
1.91
2.10
2.31
EXTERNAL STATIC PRESSURE(in.
0,6
Watts
715
805
903
1010
1127
1254
1391
1538
1697
1867
2050
Rpm
1098
1131
1166
1200
1236
1272
1308
1348
1382
1420
.........
Bhp
0.98
1.09
1.21
1.33
1.47
1.62
1.78
1.96
2.14
2.34
Watts
869
965
1070
1184
1307
1440
1584
1738
1904
2081
Rpm
1178
1210
1242
1275
1308
1343
1377
1412
1448
......
0,8
Bhp
1.16
1.28
1.40
1.54
1.68
1.84
2.01
2.19
2.38
Watts
1032
1134
1245
1365
1495
1634
1784
1945
2117
Rpm
1252
1282
1313
1348
1377
1409
1443
--
--
1,0
Bhp
1.35
1.48
1.61
1.75
1.90
2.07
2.24
--
--
Watts
1203
1311
1427
1553
1689
1834
1990
--
--
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
AIRFLOW
CFM
1.2
Rpm
1322
1351
1380
1411
1441
1473
...............
...............
...............
...............
...............
...............
...............
Bhp
1.56
1.68
1.82
1.97
2.13
2.30
LEGEND
Watts
1382
1495
1617
1748
1890
2041
Rpm
1388
1416
1444
1473
1503
............
1.4
Bhp
1.77
1.90
2.04
2.20
2.36
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1568
1686
1814
1950
2097
Rpm
1451
1477
1505
.........
.........
Bhp
1.98
2.12
2.27
Watts
1762
1885
2017
Rpm
1510
1536
--
1.8
Bhp
2.21
2.35
.....
Watts
1962
2090
Rpm
--
--
2.0
Bhp
--
--
Bhp
Watts
--
--
Brake Horsepower
Input Watts to Motor
*Motor drive range: 1119 to 1585 rpm. All other rpms require field-supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
3. See page 27 for general fan performance notes.
Table 29 -- Fan Performance 48HJ007 -- Horizontal Discharge Units; High-Static Motor (Belt Drive)*
Watts
--
--
AIRFLOW
CFM
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
Rpm
913
952
992
1032
1073
1114
1155
1196
1238
1280
1322
1364
1406
0.2
Bhp
0.64
0.73
0.84
0,95
1.07
1.21
1.36
1,51
1,69
1.87
2.07
2.28
2.50
Watts
569
652
744
844
954
1074
1204
1345
1497
1660
1835
2023
2224
Rpm
1010
1046
1083
1120
1158
1196
1234
1273
1312
1352
1392
1432
1472
0.4
Bhp
0.80
0.91
1.02
1.14
1.27
1.41
1.57
1.73
1.91
2.10
2.31
2.53
2.76
EXTERNAL STATIC PRESSURE(in.
0,6
Watts
715
805
903
1010
1127
1254
1391
1538
1697
1867
2050
2245
2452
Rpm
1098
1131
1166
1200
1236
1272
1308
1348
1382
1420
1458
1496
.........
Bhp
0.98
1.09
1,21
1,33
1.47
1.62
1.78
1.96
2.14
2.34
2.56
2.78
Watts
869
965
1070
1184
1307
1440
1584
1738
1904
2081
2270
2472 wg)
Rpm
1178
1210
1242
1275
1308
1343
1377
1412
1448
1484
1521
......
0,8
Bhp
1.16
1,28
1.40
1,54
1.68
1.84
2.01
2.19
2.38
2.59
2.81
Watts
1032
1134
1245
1365
1495
1634
1784
1945
2117
2300
2496
Rpm
1252
1282
1313
1345
1377
1409
1443
1477
1511
1546
--
1.0
Bhp
1.35
1,48
1.61
1.75
1.90
2.07
2.24
2.43
2.63
2.84
--
Watts
1203
1311
1427
1553
1689
1834
1990
2157
2335
2526
--
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
AIRFLOW
CFM
LEGEND
Rpm
1322
1351
1380
1411
1441
1473
1505
1537
1571
...............
...............
...............
...............
1.2
Bhp
1,58
1.68
1.82
1.97
2.13
2.30
2,48
2.68
2.88
Watts
1382
1495
1617
1748
1890
2041
2203
2376
2560
Rpm
1388
1416
1444
1473
1503
1533
1564
............
............
1.4
Bhp
1.77
1,90
2.04
2.20
2.36
2.54
2.73
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Watts
1568
1686
1814
1950
2097
2254
2422
Rpm
1451
1477
1505
1533
1562
1591
.........
Bhp
1.98
2,12
2.27
2.43
2.60
2.79
Watts
1762
1885
2017
2159
2311
2474
Rpm
1510
1536
1563
1590
1618
--
1.8
Bhp
2,21
2.35
2.51
2.67
2.85
.....
Watts
1962
2090
2227
2374
2532
Rpm
1568
1593
1619
--
--
2.0
Bhp
2,44
2.59
2.75
--
--
Watts
2169
2302
2443
--
--
NOTES:
1.
Boldface
2.
Maximum indicates continuous field-supplied
3.
See page 27 for general bhp is 2.90.
fan drive performance is required.
notes.
Bhp
Watts
--
--
Brake Horsepower
Input Watts to Motor
*Motor drive range: 1300 to 1685 rpm. All other rpms require field-supplied drive.
Table 30 -- Accessory/FlOP EconoMi$er IV and EconoMi$er2 Static Pressure* (in. wg)
COMPONENT
I
0.045
1250
--
1500 1750 2000 2250
Vertical EconoMi$er2 and EconoMi$er IV
Horizontal EconoMi$er2 and EconoMi$er IV
0,065
--
0.08
0.1
0.12
0.125
0.145
0.15
0.18
2750
0,22
0.225
LEGEND *The static pressure must be added to external static pressure.
The sum and the evaporator entering-air cfm should be used in conjunction with the Fan
Performance tables to determine indoor blower rpm and watts.
FlOP -Factory-Installed Option
I
0.255
36
PRE-START-UP
Failure to observe the following warnings could result in serious pel.sonal injuu:
1. Follow recognized safety practices and wear protective goggles when checking or servicing refi'igerant system.
2.
Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured.
3.
Do not remove complessor terminal cover until all electrical sources +ue disconnected.
4.
Relieve all pressure from system before touching or disturbing anything inside terminal box if refiigerant leak is suspected around complessor terminals.
5.
Never attempt to repair soldered connection while refiigemnt system is under pressure.
6.
Do not use torch to remove any component.
System cont+fins oil and refiigerant under pressure.
To mauve a component, wear protective goggles and proceed as follows: a.
Shut off electrical power and then gas to unit.
b.
Recover refrigerant to relieve all pressure from system using both high-pressure and lowpressure ports.
c.
Cut component connection tubing with tubing cutter and remove component from unit.
d.
Carefully unsweat remaining tubing stubs when necessa U. Oil can ignite when exposed to torch flame.
Proceed as follows to inspect and prepare the unit for initial start-up:
1. Remove all access panels.
2.
Read and follow instructions on all WARNING, CAU-
TION, and INFORMATION labels attached to, or shipped with, unit.
3.
Make the following inspections: a.
Inspect for shipping and handling damages such as broken lines, loose parts, or disconnected wires, etc.
b.
Inspect for oil at all refrigerant tubing connections and on unit base. Detecting oil generally indicates a refrigerant leak. Leak-test all refrigerant tubing connections using electronic leak detector, halide torch, or liquid-soap solution.
c.
Inspect all field-wiring and factou-wiring connections.
Be sure that connections are completed and tight. Be sure that wires are not in contact with refiigerant tubing or sharp edges.
d.
Inspect coil tins.
If damaged during shipping and handling, carefully straighten fins with a fin comb.
4.
Verify the following conditions: a.
Make sure that condenser-fan blade are correctly positioned in fan orifice.
See Condenser-Fan
Adjustment section on page 43 for more details.
b.
Make sure that air filter(s) is in place.
c.
Make sure that condensate drain trap is filled with water to ensure proper drainage.
d.
Make sure that all tools and miscellaneous loose parts have been removed.
START-UP
Unit Preparation--Make sure that unit lms been installed in accordance with installation instructions and applicable codes.
Gas Piping
-Check gas piping for leaks.
Disconnect gas piping from unit when leak testing at pressure greater than
1/2 psig. Pressures greater than 1/2 psig will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure greater than
1/2 psig, it must be replaced before use. When pressure testing fieldsupplied gas piping at pressures of
1/2 psig or less, a unit connected to such piping must be isolated by manu_dly closing the gas valve.
Return-Air Filters--Make sure correct filters am installed in unit (see Table 1). Do not operate unit without return-air filte_.s.
Outdoor-Air Inlet Screensmust be in place before operating unit.
Outdoor-air inlet screen
Compressor Mounting -- Compressorsme internally
spring mounted.
Do not loosen or remove compressor holddown bolts.
Internal Wiring-
Check all electrical connections in unit control boxes. Tighten as required.
Refrigerant Service Ports--Each
unit system has
4 Schrader-type service ports: one on the suction line, one on the liquid line, and 2 on the compressor discharge line. Be sum that caps on the ports are tight. Two additional Schmder valves
;ue located under the high-pressure and low-pressure switches, respectively.
High Flow Refrigerant Valves -- Two high flow valves
;u'e located on the hot gas tube coining out of the colnpressor and the suction tube going into the compressol: Large black plastic caps identify these valves.
These valves have O-rings inside which screw the cap onto a brass body to prevent leaks. No field access to these valves is available at this time. Ensure the plastic caps remain on the valves and are tight or the possibility of refrigerant leakage could occm:
Compressor Rotation
-On
3-phase
units with scroll compressors, it is important to be certain compressor is rotating in the proper direction.
To determine whether or not compressor is rotating in the proper direction:
1. Connect service gages to suction and disch;uge pressure fittings.
2.
Energize the compressoc
3.
The suction pressure should drop and the disch;uge pressure should rise, as is normal on any st;u't-up.
If the suction pressure does not diop and the discharge pressure does not rise to normal levels:
1. Note that the evaporator fan (size 006 and 007 only) is probably also rotating in the wrong direction.
2.
Turn off power to the unit and install lockout tag.
3.
Reverse any two of the unit power leads.
4.
Reenergize to the compressol: Check pressures.
37
anddischm'ge totheirnorm_fl
Whenthecompressor tion,fileunitwill makeanelevated thermostat unit,turnonmainpower
COOLposition supply.
andfanswitch toasetting atAUTO.position.
belowroomtemperature.
Check
43.
Resetthermostat will shutoff.Evaporator
30-second
TOSHUTOFFUNIT-- Setsystem position.
perature unitofftemporarily ceedsthermostat
protection device. Unit shuts down on any safety trip, and indicator light on thermostat comes on. Check reason for all safety trips.
Compressor restart is accomplished by manual reset at the thermostat by turning the selector switch to OFF and then to
ON position.
Main Burners
-Main burnel_ me factory set and should require no adjustment.
TO CHECK ignition of main burners and heating controls, move thermostat set point above room temperature and verify that the burners light and evaporator fan is energized.
Check heating effect, fllen lower the thermostat setting below the room temperature and verify that the burners and evaporator fan turn off.
Refer to Tables 3 IA and 31B for the correct orifice to use at high altitudes.
Table 31A -- Altitude Compensation* --
48HJ004-007 Standard Units
ELEVATION
(ft)
0-2,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000
72,000 AND
115,000 BTUH
NOMINAL INPUT
Natural
Gas
Orifice
Sizet
33
36
36
37
38
40
41
42
43
44
45
46
47
48
Liquid
Propane
Orifice
Size]-
43
44
45
45
46
47
48
49
50
50
51
52
52
53
150,000 BTUH
NOMINAL INPUT
37
39
41
42
32
34
35
36
43
44
Natural
Gas
Orifice
Size]-
3O
31
31
32
*As the height above sea level increases, there is less oxygen per cubic foot of air. Therefore, heat input rate should be reduced at higher altitudes.
1-Orifices available through your Carrier distributor.
45
46
47
48
42
43
43
44
49
50
Liquid
Propane
Orifice
Size]-
37
39
40
41
Table 31 B -- Altitude Compensation* --
48HJ004-006 Low NOx Units
ELEVATION
(ft)
0-2,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000
60,000 AND
90,000 BTUH
NOMINAL INPUT
Natural
Gas
Orifice
Size]-
38
40
41
42
43
43
44
45
46
47
48
49
50
51
Liquid
Propane
Orifice
Size]-
45
47
48
49
49
50
50
51
52
52
53
53
54
54
120,000
NOMINAL
Natural
Gas
Orifice
Size
32
33
35
36
37
38
39
41
42
43
44
44
46
47
BTUH
INPUT
Liquid
Propane
Orifice
Size]-
42
43
43
47
48
49
50
44
45
45
46
51
52
52
*As the height above sea level increases, there is less oxygen per cubic foot of air. Therefore, the input rate should be reduced at higher altitudes.
1-Orifices are available through your local Carrier distributor.
Heating
1. Purge gas supply line of air by opening union ahead of the gas valve. If gas odor is detected, tighten union and wait 5 minutes before proceeding.
2.
Turn on electrical supply and manual gas valve.
3.
Set system switch selector at HEAT position and fan switch at AUTO. or ON position.
Set heating temperature lever above room temperature.
4.
The induced-draft motor will start.
5.
After a call for heating, the main burnel_ should light wifllin 5 seconds.
If the burner does not light, then fllere is a 22-second delay before anofller 5-second try. If the burner still does not light, file time delay is repeated.
If the burner does not light within 15 minutes, there is a lockout. To reset the control, break the 24 v power to WI.
6.
The evaporator-fan motor will turn on 45 seconds after burner ignition.
7.
The evaporator-fan motor will turn off in 45 seconds after the fllermostat temperature is satisfied.
8.
Adjust airflow to obtain a temperature rise within the range specified on the unit nameplate.
NOTE: The default value for the evaporator-fan motor on/off delay is 45 seconds. The Integrated Gas Unit Controller (IGC) modifies this v_flue when abnormal limit switch cycles occm:
Based upon unit operating conditions, the on delay can be reduced to 0 seconds and the off delay can be extended to
180 seconds. When one flash of the LED (light-emitting diode) is observed, the evaporator-fan on/off delay has been modified.
If the limit switch trips at the st_ut of the heating cycle during the evaporator on delay, the time period of the on delay for the next cycle will be 5 seconds less than the time at which the switch tripped.
(Example: If the limit switch trips at 30 seconds, the evaporator-fan on delay for the next cycle will occur at 25 seconds.) To prevent short-cycling, a 5-second leduction will only occur if a minimum of 10 minutes has elapsed since the last call for heating.
38
Theevaporator-fan callforheating whichthemodification ingthisperiod,
A maximum evaporator-fan
If thelimitswitch theevaporator-fan
Torestore unit.
TOSHUTOFFUNIT--Set system position.
heating turewill temponuily belowthermostat shutunitoffuntilspace setting.
Safety Relief
--A soft-solder joint at the suction service
Schmder port provides pressure relief under abnorm_fl temperature and pressure conditions.
Ventilation (Continuous Fan)-
Set fan and
system
selector switches at ON and OFF positions, lespectively.
Evaporator ftm operates continuously to provide constant air circulation.
When the evaporator-fan selector switch is turned to the OFF position, there is a 30-second delay before the fan turns off.
Operating Sequence
COOLING.
UNITS WITHOUT ECONOMIZER -When thermostat c',_ls for cooling, terminals G and YI me energized.
The indoor-fan contactor (IFC) and complessor contactor tue energized and indoor-fan motol: complessol: and outdoor fan start.
The outdoor fan motor runs continuously while unit is cooling.
HEATING.
UNITS WITHOUT ECONOMIZER --When the thermostat calls for heating, terminal WI is energized.
To prevent thermostat short-cycling, the unit is locked into the
Heating mode for at least 1 minute when WI is energized.
The induced-draft motor is energized and the burner ignition sequence begins.
The indoor (evaporator) fan motor (IFM) is energized 45 seconds after a flame is ignited. On units equipped for two stages of heat, when additiomfl heat is needed, W2 is energized and the high-fire solenoid on the main gas valve
(MGV) is energized.
When the therlnostat is satisfied and WI is deenergized, the [FM stops after a 45-second time-off dek%
COOLING.
UNITS WITH ECONOMISER IV -- When free cooling is not available, the compressoLs will be controlled by the zone thermostat.
When fiee cooling is available, the outdoor-air damper is modulated by the EconoMiSer IV control to provide a 50 to 55 F supply-air temperature into the zone. As the supply-air temperatme fluctuates above 55 or below 50 H the dampeLs will be modulated (open or close) to bring the supply-air temperatme back within the set points.
Integrated EconoMiSer IV operation on single-stage units requires a 2-stage thermostat (YI and Y2).
For EconoMiSer IV operation, there must be a thermostat call for the fan (G). This will move the damper to its minimum position during the occupied mode.
If the increase in cooling capacity causes the supply-air temperature to drop below 45 F, then the outdoor-air damper position will be fi._lly closed. If the supply-air temperature continues to frill, the outdoor-air dmnper will close. Control returns to norm_d once the supply-air temperature rises above 48 E
If optional power exhaust is inst_dled, as the outdoor-air damper opens and closes, the power exhaust fans will be energized and deenergized.
If field-installed accessory CO2 sensors are connected to the
EconoMiSer IV control, a demand controlled ventilation strategy will begin to operate. As the CO2 level in the zone increases above the CO2 set point, the minimum position of the damper will be increased proportionally.
As the CO2 level decreases because of the inoease in fresh ail: the outdoor-air damper will be proportionally closed. Damper position will follow the higher demand condition from DCV mode or free cooling mode.
Damper movement from full closed to full open (or vice versa) will take between 11/2 and 21/2 minutes.
If free cooling can be used as determined fi_m the appropriate changeover command (switch, dry bulb, enthalpy curve, differential dry bulb, or differential enthalpy), a c;dl for cooling
(YI closes at the thermostat) will cause the control to modulate the dmnpers open to maintain the supply air temperature set point at 50 to 55 E
As the supply air temperature drops below the set point range of 50 to 55 H the control will modulate the outdoor-air dampers closed to maintain the proper supply-air temperature.
HEATING.
UNITS WITH ECONOMISER IV -- When the room temperature calls for heat, the heating controls are energized as described in the Heating, Units Without Economizer section.
When the thermostat is satisfied, the economizer damper moves to the minimum position.
COOLING.
UNITS WITH ECONOMISER2, PREMIER-
LINK
TM
CONTROL AND A THERMOSTAT -- When free cooling is not available, the compressors will be controlled by the PremierLink control in response to the YI and Y2 inputs fi_m the thermostat.
The PremierLink control will use the following information to determine if free cooling is available:
• Indoor fan has been on for at least 30 seconds.
• The SPT. SAT. and OAT inputs must have valid readings.
• OAT must be less than 75 E
• OAT must be less than SPT.
• Enthalpy must be LOW (may be jumpered if an enthalpy sensor not available).
• Economizer position is NOT forced.
Pre-cooling occurs when the is no call from the thermostat except G Pre-cooling is defined as the economizer modulates to provide 70 F supply all:
When free cooling is available the PremierLink control will control the compressors and economizer to provide a supplyair temperature determined to meet the YI and Y2 calls from the thermostat using the following three routines.
The three control routines are based on OAT.
The 3 routines are based on OAT where:
SASP = Supply Air Set Point
DXCTLO = Direct Expansion Cooling Lockout Set Point
PID = Proportional Integral
Routine 1 (OAT < DXCTLO)
• YI energized economizer
(SATLOI + 3).
• Y2 energized economizer
(SATLO2 + 3).
maintains maintains
Routine 2 (DXCTLO < OAT < 68 F) a a
SASP
SASP
=
=
• If only YI energized, the economizer maintains a SASP
= (SATLOI + 3).
• If SAT > SASP + 5 and economizer position > 80%, economizer will go to minimum position for 3 minutes or until SAT > 68 E
• First stage of mechanical cooling will be energized.
• Integrator resets.
• Economizer opens again and controls to current SASP after stage one on for 90 seconds.
• With YI and Y2 energized Economizer maintains an
SASP = SATLO2 + 3.
• If SAT > SASP + 5 and economizer position >80%.
economizer will go to minimum position for 3 minutes or until SAT > 68 E
39
• If compressor one is on then second stage of mechanical cooling will be energized.
Otherwise the first stage will be energized.
• Integrator resets.
• Economizer opens again and controls to SASP after stage one on for 90 seconds.
Routine 3 (OAT > 68)
• Economizer is opened 100%.
• Compressors 1 and 2 are cycled based on YI and Y2 using minimum on and off times and watching the supply air temperature
SATLO2 set points.
as compared to SATLOI and
If optional power exhaust is installed, as the outdoor-air damper opens and closes, the power exhaust fans will be energized and deenergized.
If field-installed accessoly CO2 sensors ale connected to the
PremierLink
TM control, a PID-controlled demand ventilation strategy will begin to operate.
As the CO2 level in the zone increases above the CO2 set point, the minimum position of the dmnper will be increased proportionally.
As the CO2 level decreases because of the increase in fresh aik the outdoor-air dmnper will be proportionally closed.
HEATING, UNITS WITH ECONOMISER2, PREMIERLINK
CONTROL AND A THERMOSTAT -- When the thermostat calls for heating, terminal Wl is energized.
The PremierLink control will move the economizer damper to the minimum position if there is a call for G and closed if there is a call for WI without G In order to prevent thermostat from short cycling, the unit is locked into the heating mode for at least 10 minutes when WI is energized.
The induced-draft motor is then energized and the burner ignition sequence begins.
On units equipped for two stages of heat, when additional heat is needed, W2 is energized and the high-fire solenoid on the main gas valve (MGV) is energized.
When the thermostat
is satisfied and WI is deenergized, the IFM stops after a
45-second time-off delay unless G is still maintained.
COOLING.
UNITS WITH ECONOMI$ER2, PREMIER-
LINK CONTROL AND A ROOM SENSOR -- When free cooling is not available, the compressors will be controlled by
the PremierLink controller using a PID Error reduction calculation as indicated by Fig 47.
The PremierLink controller will use the following information to determine if fiee cooling is available:
• Indoor fan has been on for at least 30 seconds.
• The SPT, SAT, and OAT inputs must have valid readings.
• OAT must be less than 75 E
• OAT must be less than SPT.
• Enthalpy must be LOW (may be jumpered if an enthalpy sensor is not available).
• Economizer position is NOT forced.
When flee cooling is available, the outdoor-air damper is positioned through the use of a Proportional Integral (PID) control process to provide a calculated supply-air temperature into the zone. The supply air will maintain the space temperature between the heating and cooling set points as indicated in Fig. 48.
The PmmierLink control will integrate the compressol.s
stages with the economizer based on similm logic as the three routines listed in the previous section.
The SASP will float up and down based on the error reduction calculations that compme space temperature and space set point.
When outside-air temperature conditions require the economizer to close for a compressor stage-up sequence, the economizer control integrator is reset to zero after the stage-up sequence is completed.
This prevents the supply-air temperature
fiom dropping too quickly and creating a fieeze condition that would make the compressor turn off prematurely.
The high space set point is used for DX (direct expansion) cooling control, while the economizer space set point is a calculated value between the heating and cooling set points.
The economizer set point will always be at least one degree below the cooling set point, allowing for a smooth transition
fi'om mechanical cooling with economizer assist, back to economizer cooling as the cooling set point is achieved.
The compressors may be used for initial cooling then the
PremierLink controller will modulate the economizer using an error reduction calculation to hold the space temperature between the heating and cooling set points. See Fig. 48.
The controller uses the following conditions to determine economizer cooling:
• Enthalpy is Low
• SAT reading is available
• OAT reading is available
• SPT reading is available
• OAT < SPT
• Economizer Position is NOT forced
If any of the above conditions are not met, the economizer submaster reference (ECSR) is set to maximum limit and the damper moves to minimum position.
The operating sequence is complete.
The ECSR is recalculated evely 30 seconds.
If an optional power exhaust is installed, as the outdoor-air damper opens and closes, the power exhaust fans will be energized and deenergized.
If field-installed accessoly CO: sensors me connected to the PremierLink
TM control, a PID-controlled demand ventilation strategy will begin to operate.
As the CO2 level in the zone increases above the CO: set point, the minimum position of the damper will be increased proportionally.
As the CO2 level decreases because of the increase in flesh aik the outdoor-air damper will be proportionally closed.
TEMPERATURE CONTROL
CO 68J
694
'_
Lu
75_
73 m_'_"71 ua 70 o
LU ; 741
TIME
TEMPERATURE
NOTE: PremierLink control performs smart staging of 2 stages of DX cooling and up to 3 stages of heat.
Fig. 47 -DX Cooling Temperature
Control Example
TEMPERATURE CONTROL
LU
££
75
£[2
LU
0.
LU p-
LU
©
O3
73
741_"
72
71 I
69
68
70Ji - .......
J
......... _ ....................................
_ // X_.,__
_ ..........................
TIME
------ COOL SETPOINT
__
---
TEMPERATURE
HEAT SETPOINT
Fig.
48 -Economizer Temperature
Control Example
4O
HEATING.
UNIT WITH ECONOMISER2, PREMIERLINK
CONTROL AND A ROOM SENSOR -- Every 40 seconds the controller will calculate the required heat stages (maximum of 3) to maintain supply-air temperature (SAT) if the following qu_flifying conditions ale met:
• Indoor fan has been on for at least 30 seconds.
• COOL mode is not active.
START or HEAT • OCCUPIED, TEMRCOMPENSATED mode is active.
• SAT reading is available.
• Fire shutdown mode is not active.
If all of the above conditions are met, the number of heat stages is c_dculated; otherwise file required number of heat stages will be set to 0.
If the PremierLink controller determines that heat stages are required, the economizer damper will be moved to minimum position if occupied and closed if unoccupied.
Staging should be as follows:
If Heating PID STAGES=2
• HEAT STAGES=I (50% capacity) will energize HSI
• HEAT STAGES=2 (100% capacity) will energize HS2
If Heating PID STAGES=3 and AUXOUT = HS3
• HEAT STAGES=I (33% capacity) will energize HSI
• HEAT STAGES=2 (66% capacity) will energize HS2
• HEAT STAGES=3 (100% capacity) will energize HS3
In order to prevent short cycling, the unit is locked into the
Heating mode for at least 10 minutes when HS 1 is deenergizedi
When HSI is energized the induced-&aft motor is then energized and the burner ignition sequence begins.
On units equipped for two stages of heat, when additional heat is needed, HS2 is energized and the high-fire solenoid on the main gas valve (MGV) is energized.
When the space condition is satisfied and HSI is deenergized file IFM stops after a 45-second time-off delay unless in the occupied mode.
The fan will mn continuously in the occupied mode as required by natiomfl energy and fresh _fir standards.
UNITS WITH HUMIDI-MIZER
TM
ADAPTIVE
MIDIFICATION SYSTEM
DEHU-
Normal Design Cooling Operation -When the rooftop operates under the normal sequence of operation, the compressors will cycle to maintain indoor conditions.
See Fig. 49.
The Humidi-MiZer a&tptive dehumidification system includes a factory-installed Motormastel@ low ambient control to keep the head and suction pressure high, allowing normal design cooling mode operation down to 0 ° E
Subcooling Mode -- When subcooling mode is initiated, this will energize (close) file liquid line solenoid valve (LLSV) forcing the hot liquid refiigemnt to enter into the subcooling coil (see Fig. 50).
As the hot liquid refrigerant passes through the subcooling/ reheat dehumidification coil, it is exposed to the cold supply airflow coming through the evaporator coil.
The liquid is runlet subcooled to a temperature approaching the evaporator leaving-air temperature.
The liquid then enters a thermostatic expansion valve (TXV) where the liquid drops to a lower pressure. The TXV does not have a pressure drop great enough to change the liquid to a 2-phase fluid, so the liquid then enters the Acutrol
TM device at the evaporator coil.
The liquid entel_ file evaporator coil at a temperature lower than in standard cooling operation.
This lower temperature increases the latent capacity of the rooftop unit. The refrigerant passes through the evaporator and is turned into a vapol: Tile air passing over the evaporator coil will become colder than during normal operation.
However.
as this same air passes over the subcooling coil, it will be slightly warmed, parti_flly reheating the air.
/
Fig. 49 -- Humidi-MiZer Normal
Design Cooling Operation
Fig. 50 -- Humidi-MiZer Subcooling
Mode Operation
Subcooling mode operates only when the outside air temperature is winmet than 40 E A factory-installed temperature switch located in the condenser section will lock out subcooling mode when the outside temperature is cooler than 40 IF.
The scroll compressors are equipped with crankcase heaters to provide protection for the compressors due to the additional refrigerant charge required by the subcoolin_reheat coil.
When in subcooling mode, there is a slight decrease in system total gross capacity (5% less), a lower gross sensible capacity (20% less), and a greatly increased latent capacity (up to 40% more).
Hot Gas Reheat Mode -When the humidity levels in the space require humidity control, a hot gas solenoid valve (specific to hot gas reheat mode only) will open to bypass a portion of hot gas lefiigerant mound the condenser coil (see Fig. 51).
This hot gas will mix with liquid refrigerant leaving file condenser coil and flow to the subcoolin_reheat dehumidification coil. Now the conditioned air coming off the evaporator will be cooled and dehumidified, but will be warmed to neutral conditions (72 F to 75 F) by the subcooling/reheat dehumidification coil.
41
Theneteffectoftherooftop toprovide whensensible ditions
Similar mode
LPS j
diminish aremoderate).
toprovide lowsensible than40E Belowthistemperature,
SeeTable tionsystem onlywhen switch a factory
32fortheHumidi-Mizer
Fig. 51 -Humidi-Mizer
TM
Hot Gas
Reheat Mode Operation
SERVICE
When servicing unit, shut off all electrical power to unit and inst',_l lockout tag to avoid shock hazard or injury from rotating parts.
Cleaning
-Inspect unit interior at the beginning of heating and cooling season and as operating conditions requile.
EVAPORATOR CO[L
1. Turn unit power off. tag disconnect.
Remove evaporator coil access panel.
2.
[f economizer or two-position dmnper is installed, remove economizer by disconnecting Molex plug and removing mounting screws.
3.
Slide filters out of unit.
4.
Clean coil using a commercial coil cleaner or dishwasher detergent in a pressurized spray canister. Wash both sides of coil and flush with clean watel: For best results, back-flush towmd return-air section to remove foreign material.
Flush condensate pan after completion.
5.
Reinst_dl economizer and filters.
6.
Reconnect wiring.
7.
Replace access panels.
CONDENSER COIL--Inspect coil monthly.
Clean condenser coil annually, and as required by location and outdoor air conditions.
One-Row Coil -Wash coil with commercial coil cleanel: It is not necessary to remove top panel.
2-Row Coils
Clean coil as follows:
1. Turn offunit powel: tag disconnect.
2.
Remove top panel screws on condenser end of unit.
3.
Remove condenser coil corner post. See Fig. 52. To hold top panel open, place coil corner post between top panel and center post. See Fig. 53.
4.
Remove screws securing coil to complessor plate and compressor access panel.
5.
Remove fastener holding coil sections together at return end of condenser coil. Carefully separate the outer coil section 3 to 4 in. from the inner coil section.
See Fig. 54.
6.
Use a water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and debris.
Clean the outer surfaces with a stiff brush in the norm_d mannel:
7.
Secure inner and outer coil rows together with a fieldsupplied fastenel:
8.
Reposition the outer coil section and remove the coil corner post fiom between the top panel and center post.
Reinstall the coil corner post and replace all screws.
CONDENSATE DRAINCheck and clean each year at start of cooling season. In wintel: protect against freeze-up.
FILTERS -- Clean or replace at start of each heating and cooling season, or more often if operating conditions require it. Replacement filters must be stone dimensions as origimd filters.
OUTDOOR-AIR INLET SCREENS -Clean screen with steam or hot water and a mild detergent.
Do not use disposable filters in place of screen.
Table 32 -- Humidi-Mizer Adaptive Dehumidification System Sequence of Operation and
System Response -- Single Compressor Unit (48HJ004-007)
THERMOSTAT
Y1
H
Off
On
On
On
On
On
On
On
On
On
Off
OAT
INPUT
Y2
On
Off
On
Off
Off
OAT. < Economizer
LEGEND
-- Outdoor AirTemperature
ECONOMIZER
No
No
Yes
Yes
No
FUNCTION
Set Point I Economizer
Off
Off
On
On
Off
48HJ UNIT OPERATION
Comp.
1 I Subcooling
Normal Operation
On Yes
On
On
On
On
Yes
Yes
No
No
Mode I Hot Gas Reheat Mode
No
No
No
Yes
Yes
NOTE: On a thermostat call for W1, all cooling and dehumidification be off.
will
42
Lubrication
COMPRESSORS -- Each compressor is chmged with correct amount of oil at the factory.
FAN MOTOR BEARINGS -Fan motor bemings are of the permanently lubricated type. No further lubrication is required.
No lubrication of condenser-fan or evaporator-fan motors is required.
Condenser-Fan Adjustment (Fig. 55) -Shut off unit power supply.
Relnove condenser-fan assembly (grille, motol: motor cover, and fan) and loosen fan hub setscrews.
Adjust fan height as shown in Fig. 55. Tighten setsclews and replace condenser-fan assembly.
EconoMi$er IV Adjustment-Refer to
EconoMi$er IV and EconoMi$er2 section on page 18.
Optional
Evaporator Fan Belt Inspection
-Check
condition
of evaporator belt or tension during heating and cooling inspections or as conditions lequile.
Replace belt or adjust as necessary.
High-Pressure Switch -The high-pressure switch contains a Schrader core depressor, and is located on the compressor hot gas line. This switch opens at 428 psig and closes at
320 psig. No adjustments are necessary.
Loss-of-Charge Switch -- The loss-of-charge
switch contains a Schrader core depressor, and is located on the compressor liquid line. This switch opens at 7 psig and closes at
22 psig. No adjustments me necessary.
Freeze-Stat
-_n_e freeze-stat is a bimetal temperaturesensing switch that is located on the "hair-pin" end of the evaporator coil. The switch protects the evaporator coil from fleeze-up due to lack of airflow. The switch opens at 30 F and closes at 45 E No adjustments are necessary.
Refrigerant Charge--Amount
of refrigerant charge is listed on unit namepkite (also refer to Table 1). Refer to HVAC
Servicing Procedures literature available at your local distributor and the following procedures.
Unit panels must be in place when unit is operating during chm'ging procedure.
Unit must operate a minimum of 10 minutes before checking or adjusting refrigerant charge.
An accurate superheat, themlocouple-type or thermistortype thermometer, and a gage manifold are required when using the supeflleat charging method for evaluating the unit chage.
Do not use menuiw or small dia/-_'pe thermometers
be_ztu.w they am not adequaW _br this 0)')e qf measurement.
TOP
PANEL
\
REMOVE
SCREWS
REMOVE
SCREWS
CONDENSER
REMOVE
CONTROL POST
CORNER POST
NO CHARGEUse standard evacuating techniques.
After evacuating system to 500 microns, weigh in the specified mnount of refrigerant.
(Refer to Table 1 and unit information plate.)
LOW CHARGE COOLING -Using Cooling Charging
Ch;uts, Fig. 56-59, vary refrigerant until the conditions of the chmls are met. Note the charging charts are different from type normally used. Chmls are based on charging the units to the correct superheat for the various operating conditions.
Accurate pressure gage and temperature sensing device are required.
Connect the pressure gage to the service port on the suction line. Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading.
Indoor-air cfm must be within the normal operating range of the unit.
COIL CORNER
POST
CENTER BAFFLE TOP PANEL
COMPRESSOR
ACCESS
PANEL CONDENSER COIL
Fig. 53 -Propping Up Top Panel
TOP VIEW
PANEL
ENTER BAFFLE
CONDENSER
COIL
INNERCOIL
OUTER
COILSECTION
102 mm
(4") MAX
/
HAIRPIN END
CLEAN
Fig.
54 -Separating Coil Sections
COILCENTER
POST
ACCESS
PANEL
CONDENSER
COIL
REMOVE COIL
CORNER POST
Fig. 52 -- Cleaning Condenser Coil
REMOVE
SCREWS
43
UNIT 48HJ
004-006 and 007 (208/230 V)
007 (460 and 575 V)
Fig. 55Condenser-Fan
FAN HEIGHT -- "A" (in.)
2.75
3.50
Adjustment
HUMIDI-MIZER
TM
SYSTEM CHARGING -- The system charge for units wifll the Humidi-MiZer a&tptive dehumidification system is greater than that of the standard unit _flone.
The charge for units with this option is indicated on the unit nmneplate &awing.
Also lefer to Fig.
60-63.
To charge systems using the Humidi-MiZer a&tptive dehumidification system, fully evacuate, recoven and recharge the system to the nmneplate specified charge level. To check or adjust refrigerant chalge on systems using the Humidi-MiZer adaptive dehumidification system, charge per Fig. 60-63.
NOTE: When using the charging chin-Is, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.
The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to
75[
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40
SUCTION LINE TEMPERATURE (*F)
4
I I
10
I
16 211
SUCTION LINE TEMPERATURE ('C)
_7
Fig. 56 -- Cooling Charging Chart,
Standard 48HJ004
312
SUCTION LINE TEMPERATURE (*F)
Fig. 57 -- Cooling Charging Chart,
Standard 48HJ005
44 use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.
The chin-Is reference a liquid pressure (psig) and temperature at a point between the condenser coil and the subcooling/ reheat dehumidification coil. A tap is provided on the unit to measure liquid pressure entering the subcooling/reheat dehumidification coil.
IMPORTANT: The subcooling mode charging ch_u-ts
(Fig. 60-63) me to be used ONLY with units having the
Humidi-MiZer adaptive dehumidification system. IN) NOT use stan&Lrd chm'ge (Fig.
56-59) for units with Humidi-
MiZer system, and DO NOT use Fig. 60-63 for standmd units.
vsE11_
68£ I00-
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IIIIIIII
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125 52
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1I llllllll llllllll
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IIIIIIII
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80
SUCTION
I
LINE TEMPERATURE ('F)
SUCTION LINE TEMPERATURE ('C)
Fig. 58 -- Cooling Charging Chart,
Standard 48HJ006
758 110
68_ 100
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SUCTION LINE TEM_RATURE
70
('F)
_ 1_ 116 211
_CTIOM LINE TENPERAT_E OC)
Fig. 59Cooling Charging Chart,
Standard 48HJ007
TO USE COOLING CHARGING CHART, STANDARD
UNIT--Take the outdoor ambient temperature trod mad the suction pressure gage. Refer to ch_uts to detennine what suction temperature should be. If suction temperature is high, add refrigerant.
If suction temperature is low. carefully recover some of file charge.
Recheck the suction pressure as charge is adjusted.
Exmnple (Fig. 58):
Outdoor Temperature ...............................
Suction Pressure ................................
Suction Temperature should be .......................
(Suction temperature may vtu'y _+5 ° E)
75 F
70 psig
48 F
If a charging device is used, temperature and pressure readings must be accomplished using the charging charts.
CAIN N CHARGING CHART
3 TON - 60HZ
(APPI ICABLE ONLY WHEN CO!l 15IN SUBCOOLING'P_30E)
OUTOOORFAN MUST_ OPERATIN6
TO USE COOLING CHARGING CHARTS, UNITS WITH
HUMIDI-MIZER
TM
ADAPTIVE DEHUMIDIFICATION
SYSTEM--Refer to charts (Fig.
60-63) to determine the proper leaving condenser pressure and temperature.
Exmnple (Fig. 60):
Leaving Condenser Pressure .....................
Leaving Condenser Temperature ...................
250 psig
105 F
NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.
The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.
(APPL
680LIN6
ICABLE ONLY
_
5 tON
C_IIR6Itl6
GOHZ
WHEN COIL
CHART
IS IN SUBCOOLiNG MODE )
LI_UI_ PRESSUR_L_AVING CO_DENS_R(PSIG)
NOTE: When using the charging charts, it is important that only the subcoolin( _reheat dehumidification coil liquid line solenoid valve be energized.
The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.
Fig. 60 -- Cooling Charging Chart, 48HJ004 with
Optional Humidi-MiZer Adaptive Dehumidification
System
CODLIN8 MODE CHARSINt'3 CHART
4 TON 50HZ
(APPLICABLE ONLY WHEN COIL IS IN 5UBOOOLING MODE)
_o i_ 1so 2oo 2so _oo 3so 4oo
NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.
The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.
Fig. 62 -- Cooling Charging Chart, 48HJ006 with
Optional Humidi-MiZer Adaptive Dehumidification
System
COOLING _
6 TON
CHkR61_
60HZ
(APPLICABLE
CHi_T
ONLY WHEN COIL ISIN SUBCOOLING MODE ) oumooRFANMUSTaE OPERATING
4Do SD mo 1so _ 2_ _o
LIgtllD PRESSURE (PSIG)
_o 4_
NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.
The subcooling/reheat dehumidgication coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.
Fig. 61 -- Cooling Charging Chart, 48HJ005 with
Optional Humidi-MiZer Adaptive Dehumidification
System
45
NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.
The subcoofing/reheat dehumidgication coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.
Fig. 63 -- Cooling Charging Chart, 48HJ007 with
Optional Humidi-MiZer Adaptive Dehumidification
System
Flue Gas Passageways -- To inspect the flue collector box and upper areas of the heat exchanger:
1. Remove the combustion blower wheel and motor assembly according to directions in Combustion-Air Blower section below.
2.
Remove the 3 screws holding the blower housing to the flue coveg
3.
Remove the flue cover to inspect the heat exchangel:
4.
Clean all surfaces as required using a wire blush.
Combustion-Air Blower--
Clean periodically to ensure proper airflow and heating eft]ciency.
Inspect blower wheel every fall and periodically during heating season. For the fil.st heating season, inspect blower wheel bimonthly to determine proper cleaning frequency.
To inspect blower wheel, remove draft hood and screen.
Shine a flashlight into opening to inspect wheel. If cleaning is required, remove motor and wheel as follows:
1. Slide burner access panel out.
2.
Remove the 5 screws that altach induced-draft motor assembly to the vestibule covel:
3.
Slide the motor and blower wheel assembly out of the blower housing.
The blower wheel can be cleaned at this point.
If additional cleaning is required, continue with
Steps 4 and 5.
4.
To remove blower from the motor shaft, remove
2 setscrews.
5.
To remove motor, remove the 4 screws that hold the motor to mounting plate. Remove the motor cooling fan by removing one setscrew.
Then remove nuts that hold motor to mounting plate.
6.
To reinstall, reverse the procedure outlined above.
Limit Switch-
Remove blower access panel (Fig.
7).
Limit switch is located on the fan deck.
Burner Ignition -Unit is equipped with a direct spark ignition 100% lockout system. Integrated Gas Unit Controller
(IGC) is located in the control box (Fig. 12). A single LED on the [GC provides a visual display of operational or sequentkd problems when the power supply is uninterrupted. The LED can be observed through the viewport. When a break in power occurs, the IGC will be reset (resulting in a loss of fault history) and the evaporator fan on/off times delay will be reset. Dnring servicing, refer to the label on the control box cover or Table 33 for an explanation of LED error code descriptions.
If lockout occurs, unit may be reset by interrupting power supply to unit forat least 5 seconds.
Table
33
-- LED Error Code Description*
LED INDICATION
ON
OFF
1 Flasht
2 Flashes
3 Flashes
4 Flashes
5 Flashes
6 Flashes
7 Flashes
8 Flashes
9 Flashes
ERROR CODE
Normal Operation
Hardware Failure
DESCRIPTION
Evaporator Fan On/Off Delay Modified
Limit Switch Fault
Flame Sense Fault
4 Consecutive Limit Switch Faults
Ignition Lockout Fault
Induced-Draft Motor Fault
Rollout Switch Fault
Internal Control Fault
Software Lockout
LEGEND
LED-Light-Emitting Diode
*A 3-second pause exists between LED error code flashes. If more than one error code exists, all applicable codes will be displayed in numerical sequence.
]-Indicates a code that is not an error. The unit will continue to operate when this code is displayed,
Refer to Troubleshooting Tables 34-38 for additional _
I
46
Main Burners
-At the beginning of each heating season, inspect for deterioration or blockage due to corrosion or other causes. Observe the main burner flames and adjust, if necessary.
When servicing gas train, do not hit or plug orifice spuds.
REMOVAL AND REPLACEMENT
(See Fig. 64 and 65)
1. Shut offmanual gas valve.
2.
Shut off power to unit, tag disconnect.
OF GAS TRAIN
3.
Remove compressor access panel.
4.
Slide out burner compartment side panel.
5.
Disconnect gas piping at unit gas valve.
6.
Remove wires connected to gas valve. Mark each wire.
7.
Remove induced-draft motol, ignitor, and sensor wires at the Integrated Gas Unit Controller (IGC).
8.
Remove the 2 screws that attach the burner rack to the vestibule plate.
9.
Remove the gas valve bracket.
10.
Slide the burner tray out of the unit (Fig. 65).
11. To reinstall, reverse the procedure outlined above.
INDUCED-
DRAFT
MOTOR
PLATE
SECTION
DRAFT
MOTOR
PRESSURE
TAP
Fig. 64 -- Burner Section Details
EXHAUST
- VESTIBULE
PLATE
"BLOWER
HOUSING
"GAS
VALVE
GAS
VALVE
S MANIFOLD PRESSURE TAP f-_ _ F ¸
BURNERS
Fig. 65 -- Burner Tray Details
ROLLOUT
SWITCH
CLEANING AND ADJUSTMENT
1. Remove burner rack from unit as described above.
2.
Inspect burners and, if dirty, remove burners from rack.
3.
Using a soft blush, clean burners and cross-over port as required.
4.
Adjust spark gap. See Fig. 66.
5.
Reinst_dl burners on rack.
6.
Reinst_dl burner rock as described above.
Replacement Parts -A complete list of replacement parts may be obtained froln any Carrier distributor upon request. Refer to Fig. 67 for a typical unit wiring schelnatic.
/
SEE DETAIL"(3"
/
LOW H EAT
48HJE/H004, 48HJD/G005-00772,000 BTUH INPUT
48HJM004, 48HJL005,006 -- 60,000 BTUH INPUT
L
2
L
t" \
./
"F
MEDIUM AND HIGH HEAT
48HJE/H005-007, 48HJF/K004 -115,000 BTUH INPUT
48HJF/K005-007 -150,000 BTUH INPUT
48HJM005,006; 48HJN004 -- 90,000 BTUH INPUT
48HJN005,006120,000 BTUH INPUT
\ L
SEE DETAIL _"
SPARK GAP
.120/.141
IN. (3.05/3.56
mm)
SPARK GAP MUST BE POSITIONED TO
IGNITE ON FIRST TRY. (PLACE
SPARK GAP WITHIN BURNER
CIRCUMFERENCE AS SHOWN)
,yN.
(4.60 ram)
DETAIL *C*
Fig. 66 -- Spark Gap Adjustment
47
DETAIL "E"
SEE NOTE *3 _ i i
SCHEHATIC
208/230 3 BO
EQUP GND
GRN/YELI_
I
ONNECTIOI
BOARD
CLO
Y
PL6 R
FOR STD
UNIT PL6
--PNK
--<_l-
.YEL*
.BLU.
-BLK-
--BRN.
--RED°
--GRA.
--pNKI
RED o iovoc/420MA CONTROLLER
J CONNECTIONFOR ECONOMIZER
FACTORYOR FIELD
L INSTALLED
O@
NOTES:
1, If any of the original wire furnished must be replaced, it must be replaced with type 90 C wire or its equivalent.
2, Three phase motors are protected under primary single phasing conditions.
3, Use copper conductors only.
4, TRAN is wired for 230 v unit. If unit is to be run with 208 v power supply, disconnect BLK wire from 230 v tap (ORN) and connect to 208 v tap (RED).
Insulate end of 230 v tap.
COMPOIENT ARRANGEMENT
C
CAP
CLO
-Contactor, Compressor
-Capacitor
-Compressor Lockout
COMP -Compressor Motor
EQUIP -Equipment
FPT
FU
GND
HPS
HS
--
--
--
Freeze Up Protection
Fuse
Ground
-High-Pressure Switch
-Hall-Effect Sensor
Thermostat
IFC
IFM
IGC
LPS
LS
MGV
-Ignitor
Motor
-Indoor Fan Contactor
-Indoor Fan Motor
-Integrated Gas Unit Controller
-Low-Pressure Switch
-Limit Switch
-Main Gas Valve
LEGEND
OFM
OLR
P
-Outdoor (Condenser) Fan Motor
-Overload Relay
-Plug
PL
QT
-Plug Assembly
-Quadruple Terminal
RS
SAT
--
--
Rollout Switch
Supply Air Temperature
TRAN -Transformer
Sensor
Field Splice
_ Marked Wire
Terminal (Marked) _
O Terminal (Unmarked)
Terminal Block
_
O
_
-----
_
Splice
Splice (Marked)
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
To indicate common potential only; not to represent wiring.
Fig. 67 -- Typical Wiring Schematic and Component Arrangement (208/230-3-60 Shown)
48
TROUBLESHOOTING
Unit Troubleshooting troubleshooting details.
-Refer to Tables 34-38 for unit
SYMPTOM
Hardware Failure.
(LED OFF)
Fan ON/OFF Delay Modified
(LED/FLASH)
Limit Switch Fault.
(LED 2 Flashes)
Flame Sense Fault.
(LED 3 Flashes)
4 Consecutive
Switch Faults.
(LED 4 Flashes)
Limit
Ignition Lockout.
(LED 5 Flashes)
Induced-Draft Motor Fault.
(LED 6 Flashes)
Rollout Switch Fault.
(LED 7 Flashes)
Internal Control Fault.
(LED 8 Flashes)
Temporary Software
Lockout
(LED 9 Flashes)
Table 34 -- LED Error Code Service Analysis
CAUSE
Loss of power to control module (IGC).
REMEDY
Check 5 amp fuse on IGC, power to unit, 24-v circuit breaker, and transformer.
Units without a 24-v circuit breaker have an internal overload in the 24-v transformer.
If the overload trips, allow
10 minutes for automatic reset.
Ensure unit is fired on rate and temperature rise is correct.
High limit switch opens during heat
exchanger warm-up period before fan-on delay expires.
Limit switch opens within three minutes after blower-oft delay timing in Heating mode
High temperature limit switch is open.
Ensure units' external static pressure is within application guidelines.
Check the operation of the indoor (evaporator) fan motor.
Ensure that the supply-air temperature rise is in accordance with the range on the unit nameplate.
Reset unit. If problem persists, replace control board.
The IGC sensed flame that should not be
)resent.
Inadequate airflow to unit.
Check operation of indoor (evaporator) fan motor and that supply-air temperature rise agrees with range on unit nameplate information.
Unit unsuccessfully attempted ignition for
15 minutes.
IGC does not sense that induced-draft motor is operating,
Rollout switch has opened.
Microprocessor has sensed an error in the software or hardware.
Electrical interference is impeding the IGC software,
Check ignitor and flame sensor electrode spacing, gaps, etc.
Ensure that flame sense and ignition wires are properly terminated.
Verify that unit is obtaining proper amount of gas.
Check for proper voltage. If motor is operating, check the speed sensor plug/IGC Terminal J2 connection.
Proper connection: PIN 1-- White, PIN 2 -- Red, PIN 3-Black.
Rollout switch will automatically reset, but IGC will continue to lock out unit. Check gas valve operation.
Ensure that induceddraft blower wheel is properly secured to motor shaft.
Reset unit at unit disconnect.
If error code is not cleared by resetting unit power, replace the IGC.
Reset 24-v to control board or turn thermostat off and then on. Fault will automatically reset itself in one hour.
If the IGC must be replaced, be sure to ground yourself to dissipate any electrical charge that may be present before handling new control board. The IGC is sensitive to static electricity and may be damaged if the necessary precautions are not taken.
IMPORTANT: Refer to heating troubleshooting
LEGEND
IGC -Integrated Gas Unit Controller
LED -Light-Emitting Diode for additional I
I
49
PROBLEM
Burners Will Not
Ignite.
Inadequate Heating,
Poor Flame
Characteristics.
Burners Will Not
Turn Off.
Table 35 -- Heating Service Analysis
CAUSE
Misaligned spark electrodes.
No gas at main burners.
Water in gas line.
No power to furnace.
No 24 v power supply to control circuit.
Miswired or loose connections.
Burned-out heat anticipator in thermostat.
Broken thermostat wires.
Dirty air filter.
Gas input to unit too low.
Unit undersized for application.
Restricted airflow.
Blower speed too low.
Limit switch cycles main burners.
Too much outdoor air.
Incomplete combustion (lack of combustion air) results in:
Aldehyde odors, CO (carbon monoxide), sooting flame, or floating flame.
Unit is locked into Heating mode for a one minute minimum.
REMEDY
Check flame ignition and sensor electrode positioning. Adjust as needed.
Check gas line for air purge as necessary. After purging gas line of air, allow gas to dissipate for at least 5 minutes before attempting to relight unit.
Check gas valve.
Drain water and install drip leg to trap water.
Check power supply, fuses, wiring, and circuit breaker.
Check transformer. Transformers with internal overcurrent protection require a cool-down period before resetting. Check 24-v circuit breaker; reset if necessary.
Check all wiring and wirenut connections.
Replace thermostat.
Run continuity check. Replace wires, if necessary.
Clean or replace filter as necessary.
Check gas pressure at manifold. Clock gas meter for input, if too low, increase manifold pressure or replace with correct orifices.
Replace with proper unit or add additional unit.
Clean filter, replace filter, or remove any restrictions.
Use high speed tap, increase fan speed, or install optional blower, as suitable for individual units, Adjust pulley.
Check rotation of blower, thermostat heat anticipator settings, and temperature rise of unit. Adjust as needed.
Adjust minimum position.
Check economizer operation.
Check all screws around flue outlets and burner compartment. Tighten as necessary.
Cracked heat exchanger.
Overtired unit -- reduce input, change orifices, or adjust gas line or manifold
)ressure.
Check vent for restriction. Clean as necessary.
Check orifice to burner alignment.
Wait until mandatory one-minute time period has elapsed or reset power to unit.
Table 36 -- Humidi-MiZer
TM
Adaptive Dehumidification System Subcooling Mode Service Analysis
PROBLEM
Subcooling Mode (Liquid Reheat)
Will Not Energize.
Low System Capacity,
Loss of Compressor Superheat
Conditions with Subcooling/Beheat
Dehumidification Coil Energized.
CAUSE
No power to control transformer from evaporator-fan motor.
No power from control transformer to liquid line solenoid valve.
Liquid line solenoid valve will not operate.
Liquid line solenoid valve will not open.
Low refrigerant charge or frosted evaporator coil.
Thermostatic expansion valve (TXV).
REMEDY
Check power source and evaporator-fan wire connections are tight.
relay. Ensure all
1. Fuse open; check fuse.
Ensure continuity of wiring.
2. Low-pressure switch open. Cycle unit off and allow lowpressure switch to reset.
Replace switch if it will not close.
3. Transformer bad; check transformer.
1. Solenoid coil defective; replace.
2. Solenoid valve stuck open; replace.
Valve is stuck closed; replace valve.
1. Check charge amount.
Charge per Fig. 60-63.
2. Evaporator coil frosted; check and replace low-pressure switch if necessary.
1. Check TXV bulb mounting, and secure tightly to suction line.
2. Replace TXV if stuck open or closed.
Table 37 -- Humidi-MiZer
TM
Adaptive Dehumidification System Hot Gas Reheat Mode Service Analysis
PROBLEM
Reheat Mode Will Not Energize.
Loss of Compressor Superheat
Conditions with Subcooling/Reheat
Dehumidification Coil Energized,
Excessive Superheat,
CAUSE
No power to control transformer from evaporator-fan motor.
No power from control transformer to hot gas line solenoid valve
Hot gas line solenoid valve will not operate.
Low refrigerant charge or frosted evaporator coil.
Thermostatic expansion valve (TXV).
Liquid line solenoid valve will not operate.
Hot gas line solenoid valve will not close.
REMEDY
Check power source and evaporator-fan wire connections are tight.
relay. Ensure all
1. Fuse open; check fuse.
Ensure continuity of wiring.
2. Low-pressure switch open. Cycle unit off and allow lowpressure switch to reset.
Replace switch if it will not close.
3. Transformer bad; check transformer.
1. Solenoid coil defective; replace.
2. Solenoid valve stuck closed; replace.
1. Check charge amount.
Charge per Fig. 60-63.
2. Evaporator coil frosted; check and replace low-pressure switch if necessary.
1. Check TXV bulb mounting, and secure tightly to suction line.
2. Replace TXV if stuck open or closed.
Valve is stuck, replace valve.
Valve is stuck; replace valve.
50
PROBLEM
Compressor and Condenser Fan
Will Not Start.
Compressor Will Not Start
But Condenser Fan Runs.
Compressor Cycles (Other Than
Normally Satisfying Thermostat).
Compressor Operates Continuously.
Excessive Head Pressure.
Head Pressure Too Low.
Excessive Suction Pressure.
Suction Pressure Too Low.
Evaporator Fan Will Not Shut Off.
Table 38 -- Cooling Service Analysis
CAUSE
Power failure.
Fuse blown or circuit breaker tripped.
Defective thermostat, contactor, transformer, or control relay.
Insufficient line voltage.
Incorrect or faulty wiring.
Thermostat setting too high.
Faulty wiring or loose connections in compressor circuit.
Compressor motor burned out, seized, or internal overload open.
Defective run/start capacitor, overload, start relay.
One leg of 3-phase power dead.
Refrigerant overcharge or undercharge.
REMEDY
Call power company.
Replace fuse or reset circuit breaker.
Replace component.
Determine cause and correct.
Check wiring diagram and rewire correctly.
Lower thermostat setting below room temperature.
Check wiring and repair or replace.
Determine cause. Replace compressor.
Determine cause and replace.
Replace fuse or reset circuit breaker. Determine cause.
Recover refrigerant, evacuate system, and recharge to nameplate.
Replace and determine cause.
Determine cause and correct.
Determine cause and correct.
Determine cause and replace.
Defective compressor.
Insufficient line voltage.
Blocked condenser.
Defective run/start capacitor, overload, or start relay.
Defective thermostat.
Faulty condenser-fan motor or capacitor.
Restriction in refrigerant system.
Dirty air filter.
Unit undersized for load.
Thermostat set too low.
Low refrigerant charge.
Leaking valves in compressor.
Air in system.
Condenser coil dirty or restricted.
Dirty air filter.
Dirty condenser coil.
Refrigerant overcharged.
Air in system.
Condenser air restricted or air short-cycling.
Low refrigerant charge.
Compressor valves leaking.
Restriction in liquid tube.
High heat load.
Compressor valves leaking.
Refrigerant overcharged.
Dirty air filter.
Low refrigerant charge.
Metering device or low side restricted.
Insufficient evaporator airflow.
Temperature too low in conditioned area.
Outdoor ambient below 25 E
Time off delay not finished.
Replace thermostat.
Replace.
Locate restriction and remove.
Replace filter.
Decrease load or increase unit size.
Reset thermostat.
Locate leak, repair, and recharge.
Replace compressor.
Recover refrigerant, evacuate system, and recharge.
Clean coil or remove restriction.
Replace filter.
Clean coil.
Recover excess refrigerant.
Recover refrigerant, evacuate system, and recharge.
Determine cause and correct.
Check for leaks, repair, and recharge.
Replace compressor.
Remove restriction.
Check for source and eliminate.
Replace compressor.
Recover excess refrigerant.
Replace filter.
Check for leaks, repair, and recharge.
Remove source of restriction.
Increase air quantity. Check filter and replace if necessary.
Reset thermostat.
Install low-ambient kit.
Wait for 30-second off delay.
5!
EconoMiSer IV Troubleshooting for EconoMi$er IV logic.
-See Table 39
A functional view of the EconoMi$er is shown in Fig. 68.
Typical settings, sensor ranges, and jumper positions tue also shown.
An EconoMi$er IV simulator program is available fiom Ctmier to help with EconoMi$er IV muning and troubleshooting.
ECONOMI$ER IV PREPARATION -This procedure is used to prepare the EconoMi$er IV for troubleshooting.
No troubleshooting or testing is done by performing the following procedme.
NOTE: This procedure requires a 9-v battely, 1.2 kilo-ohm resistol: and a 5.6 kilo-ohm resistor which are not supplied with the EconoMi$er IV.
IMPORTANT: Be sure to record the positions of all poten] tiometers before starting troubleshooting.
1
1. Disconnect power at TR and TRI. All LEDs should be off. Exhaust fan contacts should be open.
2.
Disconnect device at P and PI.
3.
Jumper P to PI.
4.
Disconnect wires at T and TI. Place 5.6 kilo-ohm resistor across T and TI.
5.
Jumper TR to 1.
6.
Jumper TR to N.
7.
If connected, remove sensor from terminals So and +.
Connect 1.2 kilo-ohm 4074EJM checkout resistor across terminals So and +.
8.
Put 620-ohm resistor across terminals SR and +.
9.
Set minimum position, DCV set point, and exhaust potentiometers fully CCW (counterclockwise).
10.
Set DCV maximum position potentiometer fully CW
(clockwise).
11. Set enthalpy potentiometer to D.
12.
Apply power (24 vac) to terminals TR and TRI.
DIFFERENTIAL ENTHALPY-To check differential enthalpy:
1. Make sure EconoMiSer IV preparation procedure has been performed.
2.
Place 620-ohm resistor across So and +.
3.
Place 1.2 kilo-ohm resistor across SR and +. The Free
Cool LED should be lit.
4.
Remove 620-ohm resistor across So and +. The Free
Cool LED should turn off.
5.
Return EconoMiSer IV settings and wiring to normal after completing troubleshooting.
SINGLE ENTHALPY -- To check single enthalpy:
1. Make sure EconoMiSer IV preparation procedure has been performed.
2.
Set the enthalpy potentiometer to A (fully CCW).
The
Free Cool LED should be lit.
3.
Set the enth_dpy potentiometer to D (fully CW). The Free
Cool LED should turn off.
4.
Return EconoMiSer IV settings and wiring to normal after completing troubleshooting.
DCV (DEMAND CONTROLLED VENTILATION) AND
POWER EXHAUST -To check DCV and Power Exhaust:
1. Make sure EconoMiSer IV preparation procedure has been performed.
2.
Ensure terminals AQ and AQI _ue open.
The LED for both DCV and Exhaust should be off.
The actuator should be lhlly closed.
3.
Connect a 9-v battery to AQ (positive node) and AQl
(negative node).
The LED for both DCV and Exhaust should turn on. The actuator should chive to between 90 and 95% open.
4.
Turn the Exhaust potentiometer CW until the Exhaust
LED turns off. The LED should turn off when the potentiometer is approximately 90%. The actuator should remain in position.
5.
Turn the DCV set point potentiometer CW until the DCV
LED turns off. The DCV LED should turn off when the potentiometer is approximately 9-v. The actuator should drive fully closed.
6.
Turn the DCV and Exhaust potentiometers CCW until the Exhaust LED turns on. The exhaust contacts will close 30 to 120 seconds after the Exhaust LED turns on.
7.
Return EconoMi$er IV settings and wiring to normal after completing troubleshooting.
DCV MINIMUM AND MAXIMUM POSITION -- To check the DCV minimum and maximum position:
1. Make sure EconoMiSer IV prep_uation procedure has been performed.
2.
Connect a 9-v battery to AQ (positive node) and AQI
(negative node).
The DCV LED should turn on. The actuator should chive to between 90 and 95% open.
3.
Turn the DCV Maximum Position potentiometer to midpoint. The actuator should drive to between 20 and 80% open.
4.
Turn the DCV Maximum Position potentiometer to lhlly
CCW. The actuator should drive fully closed.
5.
Turn the Minimum Position potentiometer to midpoint.
The actuator should chive to between 20 and 80% open.
6.
Turn the Minimum Position Potentiometer lhlly CW. The actuator should drive fully open.
7.
Remove the jumper from TR and N. The actuator should drive fully closed.
8.
Return EconoMiSer IV settings and wiring to norm_d after completing troubleshooting.
SUPPLY-AIR INPUT -- To check supply-air input:
1. Make sure EconoMi$er IV prepmation procedure has been performed.
2.
Set the Enthalpy potentiometer to A. The Free Cool LED turns on. The actuator should drive to between 20 and
80% open.
3.
Remove the 5.6 kilo-ohm lesistor and jumper T to TI.
The actuator should chive lhlly open.
4.
Remove the jumper across T and TI. The actuator should drive fully closed.
5.
Return EconoMiSer IV settings and wiring to norm;d after completing troubleshooting.
ECONOMISER IV TROUBLESHOOTING COMPLE-
TION -This procedure is used to return the EconoMiSer IV to operation.
No troubleshooting or testing is done by performing the following procedure.
1. Disconnect power at TR and TRI.
2.
Set enthalpy potentiometer to previous setting.
3.
Set DCV maximum position potentiometer to previous setting.
4.
Set minimum position, DCV set point, and exhaust potentiometers to previous settings.
5.
Remove 620-ohm resistor from terminals SR and +.
6.
Remove 1.2 kilo-ohm checkout resistor from terminals
So and +. If used, reconnect sensor from terminals So and
+.
52
7. Remove jumper flom TR to N.
8. Remove jumper fiom TR to 1.
9. Remove 5.6 kilo-ohm resistor from T and TI. Reconnect wiles tit T and TI.
l 0.
Remove jumper fiom P to Pl. Reconnect device a P and
PI.
11. Apply power (24 vac) to terminals TR and TRI.
Table 39 -- EconoMi$er IV Input/Output Logic
Demand Control
Ventilation
Below set
(DCV LED Off)
Above set
(DCV LED On)
(DCV)
1-Power at N terminal
High
INPUTS
Enthalpy*
Outdoor
(Free Cooling LED Off)
Low
(Free Cooling LED On)
High
(Free Cooling LED Off)
Low
(Free Cooling LED On) determines
24 vac (Occupied), no power (Unoccupied).
Return
Low
High
Low
High
Occupied/Unoccupied
**Modulation is based on the supply-air sensor signal.
1-1-Modulation is based on the DCV signal.
Compressor
Y1 Y2 Stage Stage
1 2
On On
On Off
Off Off
On On
On Off
Off Off
On On
On Off
Off Off
On On
On Off
Off Off
On
On
Off
On
Off
Off
On
On
Off
On
Off
Off
On
Off
Off
Off
Off
Off
On
Off
Off
Off
Off
Off
*For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point.
setting:
OUTPUTS
N Terminalt
Occupied
Minimum position
Damper
Closed
Unoccupied
Modulating** (between rain.
3osition and full-open)
Minimum position
Modulating1-1- (between rain.
3osition and DCV maximum)
Modulating***
Modulating**
Modulating1-1- (between closed and DCV maximum)
(between closed and full-open)
Closed
Modulating1-1-1-
***Modulation is based on the greater of DCV and supply-air sensor signals, between minimum position and either maximum position (DCV) or fully open (supply-air signal).
I-I-I-Modulation is based on the greater of DCV and supply-air sensor signals, between closed and either maximum position (DCV) or fully open (supply-air signal).
Fig. 68 -- EconoMi$er IV Functional View
53
Access panels 19
Altitude compensation 38
Barometric flow capacity 21
Burner ignition 46
Burner rack 46
Burner section 46
Burner spark gap 47
Carrier Comfort Network 15
ChaEzing chart, ret_igerant 44, 45
Clearance 6
CO2 sensor
Configuration 25
Settings 23, 25
Combustion blower wheel 46
Compressor
Lubrication 43
Mounting 37
Rotation 37
Condensate drain
Cleaning 42
Location 4
Condenser coil 8
Cleaning 42
Condenser fan 8
Adjustment 43
Control circuit
Wiring 7
Wiring raceway 10
Convenience outlet 15
Demand control ventilation 24
Dehunfidification 25
Dimensions 3, 6
Ductwork 2
EconoMi$er2 11_
4to 20 mAcontrol 20
Wiring 20
EconoMi$er IV 18-25
Control mode 21
Damper movement 24
Troubleshooting .52,53
Wiring 20
Electrical connections 5
Electrical data 11, 12
Enthalpy changeover set points 23
Evaporator coil 8
Cleaning 42
Evaporator fan motor
Lubrication 43
Motor data 27
Performance 28-36
Pulley adjustment 2.5,26
Pulley setting 8, 26
Speed 8
Factory-installed options
Convenience outlet 15
EconoMiSer IV 18-25
EconoMiSer2 18
Humidistat 13
Humidi-MiZer
TM dehumidification system 14
Manual outdoor air damper 13
Novar controls 15
PremierLink
TM controls 15-17
INDEX
Filter
Cleaning 42
Installation 19
Size 9
Flue gas passageways 46
Flue hood .5,7
Freeze protection thermostat 9, 43
Gas connection 9
Gas input 9
Gas piping .5,Z 37
Gas pressure 1, 9
Heat anticipator settings Z 9
Heat exchanger 9
High flow valves 37
High pressure switch 9, 4.?
Horizontal units 1, 2
Humidistat 13
Humidi-MiZeradaptive dehumidification system 13, 26, 41, 42, 44, 4.5,50
Indoor-airquality (IAQ) sensor 15, 23
Integrated gas controller 46
Error codes 46, 49
Leak test 37
Limit switch 46
Liquid propane 9
Low pressure switch 9, 43
Main burners 3& 46
Manual outdoor air damper 13
Mounting
Compressor 37
Unit 4
Natural gas 9
Novar controls 15
Operating limits 2
Operating sequence 39-42
Cooling 39
EconoMi$er IV 39
EconoMi$er2 39-41
Heating 39
Hunfidi-MiZer adaptive dehumidification system 41, 42
Outdoor air hood 14, 1.5,19
Outdoor air inlet screens 9, 3Z 42
Outdoor-air temperature sensor 15, 21
Physical data 8, 9
Power supply 5
Wiring 10
PremierLink controls 15-17
Pressure, drop
EconoMiSer IV 36
EconoMiSer2 36
Humidi-MiZer adaptive dehumidification system 26
Pro-Start-Up 37
Pressure switches
High pressure 9
Low pressure 9
Refrigerant
Charge 8, 43
Type 8
Refrigerant selwice ports 37
Replacement parts 47
Return air filter 9, 37
Return-air temperature sensor
Rigging unit 4, 5
Roof curb
Assembly 1
Dimensions 3
Connector package 3
Leveling tolerances 4
Weight 8
Safety considerations 1
Safety relief 39
Service 42-48
Sel_.ice ports 37
Slab mount 2
Start-up 37-42
Start-up checklist (_'L-I
Supply-air temperature sensor
Thermostat 10
Troubleshooting 40-53
Ventilation 39
Weight
Comer 6
EconoMiSer IV 6, 8
Unit .5,6,8
Wiring
4 to 20 mA control 20
Differential enthalpy 18
Humidistat 14
EconoMiSer2 20
EconoMiSer IV 20
Power connections 10
PremierLink control 10, 17
Thermostat 10
Unit 48
22
1.5,21
Copyright 2005 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480013-01 Printed in U.S.A.
Form 48HJ-33SI Pg 54 9-05 Replaces: 48HJ-29SI
START-UP CHECKLIST
(Remove and Store in Job File)
I. PRELIMINARY INFORMATION
MODEL NO.:
DATE:
SERIAL NO.:
TECHNICIAN:
II. PRE-START-UP (insert checkmark in box as each item is completed)
[] VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE
[] VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT
[] REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS
[] VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS
[] CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS
[] CHECK GAS PIPING FOR LEAKS
[] CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE
[] VERIFY THAT UNIT INSTALLATION IS LEVEL
[] CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS
[] CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES
OR SHARP METAL EDGES
[] CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS
III.
START-UP
ELECTRICAL
SUPPLY VOLTAGE
COMPRESSOR AMPS
INDOOR-FAN AMPS
L 1-L2
LI
LI
TEMPERATURES
OUTDOOR-AIR TEMPERATURE
RETURN-AIR TEMPERATURE
COOLING SUPPLY AIR
GAS HEAT SUPPLY AIR
PRESSURES
GAS INLET PRESSURE
GAS MANIFOLD PRESSURE
REFRIGERANT SUCTION
REFRIGERANT DISCHARGE
L2-L3
L2
L2
DB
DB
DB
DB
IN. WG
IN. WG (HIGH FIRE)
PSIG
PSIG
WB
L3-L 1
L3
L3
[] VERIFY REFRIGERANT CHARGE USING CHARGING TABLES
[] VERIFY THAT 3-PHASE SCROLL COMPRESSOR ROTATING IN CORRECT DIRECTION
LU rm
LU
Ic_ o
I-
Z
< o,
LU c_
LU
I-rm o
I-
<
Z o,
Copyright 2005 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 14 Catalog No. 04-53480013-01 Printed in U.S,A.
Form 48HJ-33SI Pg CL-1 9-05 Replaces: 48HJ-29SI
Tab 1a 16a
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