Single-Package Rooftop
Heat Pump Units
Installation, Start-Up and
Service Instructions
50TFQ004-007
CONTENTS
Page
SAFETY CONSIDERATIONS ......................... 1
INSTALLATION ................................... 1-41
Step 1-- Provide Unit Support ...................... 1
• ROOF CURB
• SLAB MOUNT
• ALTERNATE UNIT SUPPORT
Step 2-- Field Fabricate Ductwork .................. 2
Step 3-- Install Condensate Drain Line
and External Trap ................................. 2
Step 4-- Rig and Place Unit ......................... 2
• POSITIONING
Step 5-- Make Electrical Connections .............. 7
• FIELD POWER SUPPLY
• FIELD CONTROL WIRING
• DEFROST BOARD
• HEAT ANTICIPATOR SETTINGS
Step 6- Adjust Factory-Installed Options ......... 17
• DISCONNECT SWITCH
• CONVENIENCE OUTLET
• NOVAR CONTROLS
• MANUAL OUTDOOR-AIR DAMPER
• PREMIERLINK TM CONTROL
• OPTIONAL ECONOMI$ER IV AND ECONOMI$ER2
• ECONOMISER IV STANDARD SENSORS
• ECONOMI$ER IV CONTROL MODES
Step 7-- Adjust Indoor-Fan Speed ................. 29
• DIRECT-DRIVE MOTORS
• BELT-DRIVE MOTORS
PRE-START-UP ..................................... 42
START-UP ....................................... 42-45
SERVICE ........................................ 45-47
TROUBLESHOOTING ............................ 48-51
INDEX .............................................. 52
START-UP CHECKLIST .......................... CL-I
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualifed service personnel should
install, repair, or service ai>conditioning equipment.
Untrained personnel can perform basic maintenance func-
tions 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 precau-
tions 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 extinguisher available for all brazing operations.
Before performing service or maintenance operations on
unit, turn off main power switch to unit and tag disconnect.
Ensure voltage listed on unit data plate agrees with electri-
cal supply provided for the unit. Electrical shock could
cause serious personal injury.
INSTALLATION
Unit is shipped in the vertical dischtuge configuration. To
convert to horizontal configuration, remove horizont_d duct
opening covers. Using the salne screws, install covers on duct
openings in basepan of unit with the insulation-side down.
Seals tuound duct openings must be tight.
Step 1 -- Provide Unit Support
ROOF CURB--Assemble and install the accesso U roof
curb in accordance with instructions shipped with the curb.
See Fig. 1. Install insulation, cant strips, roofing felt, and
counter flashing as shown. Ductwork must be attached to the
curb, not to the unit. If electric or control power is to be routed
through the basepan, be sure to choose the appropriate acces-
sory kit. See Fig. 1. Attach the accessory thru-the-bottom ser-
vice connections to the basepan and roof curb in accor&mce
with the accessoly installation instructions. Connections must
be installed before the unit is set on the roof curb.
IMPORTANT: The gasketing of the unit to the roof curb
is critical for watertightness. Install gasket supplied with
the roof curb as shown in Fig. 1. Improperly applied
gasket can also result in air leaks and poor unit
performance.
The roof curb should be level. This is necessaU for the unit
drain to function properly. Unit leveling tolerances am shown
in Fig. 2. Refer to Accesso U Roof Curb Installation Instruc-
tions for additional information, as required.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500018-01 Printed in U,S.A, Form 50TFQ-SSI Pg 1 9-05 Replaces: 50TFQ-dSI
SLAB MOUNT (Horizontal Units Only) -- Provide a level
conclete slab that extends a minimum of 6 in. beyond the unit
cabinet. Instffll a gravel apron in flont of the condenser coil air
inlet to prevent 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
a&_pter cannot be used, support unit with sleepers using unit
curb or adapter support area. If sleepel.s cfmnot be used, sup-
poll 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 all
ducts to the roof curb and building structure on vertical dis-
charge units. Do not conne_ duct_'ork to the unit. For horizon-
tal applications, field-supplied flanges should be attached to
horizontal discharge openings and all ductwork should be at-
tached to the flanges. Insulate and weatherproof fdl external
ductwork, joints, and roof openings with counterflashing and
mastic in accordance with applicable codes.
Ducts passing through an unconditioned space must be
insulated and covered with a vapor bfuriel:
If a plenum return is used on a vertical unit, the return
should be ducted through the roof deck to comply with applica-
ble fire codes.
A minimum clearance is not requiled around ductwork.
Cabinet return-air static pressure (a negative condition) should
not exceed 0.35 in. wg with economizer or 0.45 in. wg without
economizer.
Step 3 -- Install Condensate Drain Line and
External Trap -- Condensate drain connections are locat-
ed on the bottom and side of the unit. Unit discharge connec-
tions do not determine the use of drain connections; either
drain connection can be used with vertical or horizontal dis-
charge units.
When using the standfud side drain connection, make sure
the plug in the alternate bottom connection is tight before
installing the unit.
To use the bottom &'ain connection for a roof curb installa-
tion, relocate the factory-installed plug from the bottom con-
nection to the side connection. The center &ain plug looks like
a star connection, but can be removed using a l/2-in, socket
drive extension. See Fig. 3. The piping for the condensate &'ain
and external trap can be completed after the unit is in place.
All units must have an externfd trap for condensate &'ain-
age. Instfdl a trap fit least 4 in. deep and protect against freeze-
up. If the drain line is installed downstream from the external
trap, pitch the line away from the 50TFQ unit at 1/4 in. per ft of
run. Do not use a pipe size smaller than the unit connection.
See Fig. 4.
Step 4 -- Rig and Place Unit -- Inspect the unit for
transportation dalnage, and tile any clailn with the transpomt-
tion agency. Keep the unit upright and do not drop it. Spreader
baLs are not required if top crating is left on the unit, and rollers
may be used to move the unit across a roof. Level by using the
unit frame as a reference. See Table 1 and Fig. 5 for additional
information. Operating weight is shown in Table 1 and Fig. 5.
Lifting holes are provided in base rails as shown in Fig. 5
and 6. Refer to rigging instructions on the unit.
All panels must be in place when rigging. Unit is not
designed for handling by a fork truck. Dmnage to unit may
result.
POSITIONING -- Maintain clefu'ance fu'ound and above the
unit to provide proper airflow find service access. See Fig. 6.
A properly positioned unit will have the following clearanc-
es: l/4-in, clearance between the roof curb and base rails on
each side and front of the unit; l/4-in, clemance between the
roof curb and rear of unit. (See Fig. 1, section C-C.)
Do not install the unit indool_. Do not locate the unit air in-
lets near exhaust vents or other soumes of contaminated all:
Although the unit is weatherproof, gufud against water from
higher level runoff and overhangs.
After the unit is in position, remove the polyethylene ship-
ping wrapper and top crating.
CONNECTOR I B I C I DRAIN I GAS I POWER I CONTROL
PKG. ACCY, i i i HOLE i i i
i i I DALT i I i
CRBTMPWROO1A01 I I I I 3/,d, I 3/4, [19] NPT I
"C-_T_l_W-R_O_'A511 I I I [19]NPT r _1_4,,_3T.)"] 1
......... -I , 11 ,_1 , ,_ I 3 _ I- - _ - - -I- ...... I 1/S
CRBTMPWROO3A01 i [551] 11406]1 [445] i[1271NPTi 3/4" [19] NPT i [12.7]
......... •4 " " i" "l " " " i-_-'T, _-4. ...... i NPT
CRBTMPWROO4A011 I I I l@_/41PT I 11/4"[31.7] I
1-9 /16 1-4 1 /4 /2"
_J .... L _ _ I- _ _ _L ._J--'_ L ..... --I .....
C
|
C
/ \ / \\
I I r_ ii
k / / /
URNAI OPEN I NG
SUPPLY AIR
OPENING C
ETG]
3" O"
[914]
5UPPLY AIR RETURN AIR %
I
I
I
I
I
I
I
I GABKET
I (SUPPLIED WITH CURB)
I
I
I
I I
I t
I t
I 2" 7 5/8" t
I [BI I
I I
I I
I I
I I
I
-- J
' F
O" 0 7/15"
Ell]
(BOLT HEADB) A
#
I PLATE
• (SEE NOTE
E
I
%
#
DUCTI [FIELD SUPPLIED)
I
l
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t
|
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l
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#
I
GA5 5ERVICE
3" I
7B] I
3" I
_5] I
1" ] 7/16" I
41]
O" 0 7/16"
[11]
CBOLT HEADS)
O' 0 ?/16"
A HEAD5)
L_T [ll]_
O' 0 I/4"[7]
O" 4 9/16"
Ell 5.53
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
VIEW "AJA"
HEAD OF BOLT TO BE ON
INBIDE OF FLANGE
RIGID IN5ULATION
(FIELD 5UPPLIED)
,11
I
ACCESSORY
PWR
1/2"
[12.7]
NPT
I- ......
O" 7/16"
O' 3 1/4"
[B3]
1" 4 13/16"
ROOF CURB r - - -i .........
ACCESSORY i A I UNIT SIZE
CRRFCURBOOIA01_ T'-_"-',.........
CRRFCURB002A01 i 2-0 i
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.
TYPICAL (4) 5IDES
FLASHING
(FIELD SUPPLIED)
FELT
(FIELD SUPPLIED)
STRIP
SUPPLIED)
MATERIAL
(FIELD SUPPLIED)
OPENING FOR BA5EPAN ENTRY
SERVICE (BEE NOTE #B)
O" 2 1/2"
0 9"
[427]
(INSIDE)
TYP
2 3/8"
[613
I
I
I
I
I
[152]
[INSIDE)
OTFOO04-007
.........
o,old$S.:_
o
SECTION "C C"
SCALE l :4
o
5EE NOTE _2
B"
1/1B"
VIEW "B"
(TYP. ALL CORNERS)
o" 1"
E25]
>/_o, 3"
[?G]
3' 0 15/16"
EBBB]
SEE VIEW "E_-
Fig. 1 -- Roof Curb Details
I/8"
%
El 705]
NOTE= CAMBR[DGEPORT "5URE LOCK" CORNER
FA5TENING DEVICE IB ACCEPTABLE
ALTERNATE CONSTRUCTION.
_X:
IMUM ALLOWABLE
I-"/" I J DIFFERENCE (in.)
IJ A-RI B-cI A-c
0.5 I 1.0 I 1.0
Fig. 2 -- Unit Leveling Tolerances
HORIZONTAL DRAIN PLUG
DRAIN OUTLET
NOTE:Drain plug is shown infactory-installed position.
Fig. 3 -- Condensate Drain Connection
MINIMUM PITCH
ONE IN. PER
10 FT OF LINE
TO ROOF
DRAIN
-7-
SEE
NOTE
_L_
,,q_ROOF
DRAIN PLUG
NOTE: Trap should be deep enough to offset maximum unit static dif-
ference. A 4-in. trap is recommended.
CURB
Fig. 4 -- Condensate Drain Piping Details
POSITION ALL SEAL STRIPS IN PLACE
36"- 54"
(914-1371 )
NOTES:
1. Dimension in ( ) is in millimeters.
2. Hook rigging shackles through holes in base rail, as shown in detail
"A." Holes in base rails are centered around the unit center of grav-
ity. Use wooden top skid when rigging to prevent rigging straps
from damaging unit.
3. Unit weights do not include economizer. See Table 1 for econo-
mizer weights.
All panels must be in place when rigging. Unit is not designed for
handling by a fork truck.
BEFORE INSTALLING UNIT ON ROOF CURB
AS CLOSE TO THIS END AS POSSIBLE,
SEE DETAIL DUCT END
Fig. 5 -- Rigging Details
50TFQ
UNIT
SIZE
004
OO5
006
007
\
P
OPERATING
WEIGHT
Ib kg
500 227
520 236
550 249
590 268
DETAIL "A"
DIMENSIONS
"A .... B .... C"
in. mm in. mm in. mm
73.69 1872 35.50 902 33.31 847
73.69 1872 35.50 902 33.31 847
73.69 1872 35.50 902 33.31 847
73.69 1872 35.50 902 33.31 847
Table 1 -- Physical Data
50TFQ UNIT SIZE
NOMINAL CAPACITY (tons)
OPERATING WEIGHT (Ib)
Unit
Economizer
EconoMi$er IV
Roof Curb*
COMPRESSOR
Quantity
Oil (oz)
REFRIGERANT TYPE
Operating Charge (Ib-oz)
Circuit 1
Circuit 2
OUTDOOR COIL
Rows...Fins/in.
Total Face Area (sq ft)
OUTDOOR FAN
Nominal Cfm
Quantity...Diameter (in.)
Motor Hp...Rpm
Watts Input/Total)
INDOOR COIL
Rows...Fins/in.
Total Face Area (sq ft)
INDOOR FAN
Quantity...Size (in.)
Type Drive
Nominal Cfm
Maximum Continuous Bhp
Motor Frame Size
Nominal Rpm High/Low
Fan Rpm Range
Motor Bearing Type
Maximum Allowable Rpm
Motor Pulley Pitch Diameter Min/Max (in.)
Nominal Motor Shaft Diameter (in.)
Fan Pulley Pitch Diameter (in.)
Belt, Quantity...Type...Length (in.)
Pulley Center Line Distance (in.)
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Movable Pulley Maximum Full Turns
From Closed Position
Factory Setting Std
Factory Speed Setting (rpm) Std
Fan Shaft Diameter at Pulley (in.)
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief (Differential)
Cutout
Reset (Auto.)
LOSS-OF-CHARGE SWITCH (psig)
Cutout
Reset (Auto.)
FREEZE-PROTECTION THERMOSTAT (F)
Opens
Closes
OUTDOOR-AIR INLET SCREENS
RETURN-AIR FILTERS
Quantity...Size (in.)
LEGEND
Bhp -- Brake Horsepower
*Weight of 14-in. roof curb.
1-Singlephase/three phase.
NOTE: The 50TFQ units have a loss-of-charge switch located in the liquid line.
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
Std
AIt
High-Static
AIt
High-Static
AIt
High-Static
004 005 006 007
3 4 5 6
500 520 550 590
50 50 50 50
115 115 115 115
1 1 1 1
45 I 54 I 50 I 54
5-1 I 6-0 8-0 11-2
Enhanced Copper Tubes, Aluminum Lanced Fins, AcutroF M Metering Device
1._17 I 1_.17 I 2_.17 I 2...1710.31 14.58 12.25 16.53
4000 I 4000 4000 4000
1/4...1100 1/4...1100 1/4...1100 1/4...1100
1 _.22.0 I 1...22.0 1 ...22.0 1...22.0
325 325 325 325
Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol Metering Device
2...154.2 I 2...154.2 I 3...155.5 I 3...155.5
1...10 x 10 1...10 x 10 1...11 xlO 1...10 x 10
1...10 x 10 1...10 x 10 1...10 x 10 --
1...10 x 10 1...10 x 10 1...10 x 10 1...10 x 10
Direct Direct Direct Belt
Belt Belt Belt --
Belt Belt Belt Belt
1200 1600 2000 2400
.34 .75 1.20 2.40
1.O0 1.00 1.30/2.401-
2.40 2.40 2.90 2.90
48 48 48 56
48 48 56 --
56 56 56 56
860/800 1075/970 1075/970 --
1620 1620 1725 --
1725 1725 1725 1725
-- -- -- 1070-1460
760-1000 770-1175 878-1192
1075-1455 1075-1455 1300-1685 1300-1685
Ball Ball Ball Ball
2100 2100 2100 2100
1_9 1_9 24_4 2.6/3.6_
2.8/3.8 2.8/3.8 3.4/4.4 3.4/4.4
1/2 1/2 1/2 5/8
-- -- -- 4.5
4.5 4.0 4.5 --
4.5 4.5 4.5 4.5
-- -- -- 1...A...40
1 ...A-.34 1-.A...34 1...A...39
1 ...A...39 1...A...39 1...A...40 1...A.-40
10._ 2.4 10._ 2.4 14.7_ 5.5 14.7-15.5__
10.0-12,4 10.0-12.4 14,7-15.5 14,7-15.5
-- -- -- 80
48 70 80
65 65 60 60
-- -- -- 5
5 5 5 --
6 6 5 5
-- -- -- 3
3 3 3 --
31/2 31/2 31/2 31/2
m
Hermetic
R-22
Propeller Type
Centrifugal Type
_8 ;;2 1;;5 1225_
1233 1233 1416 1416
5/8 5/5 5/8 5/8
450 -+ 50
428
32O
7-+3
22-+7
30-+5
45-+5
Cleanable. Quantity and size depend on options selected.
Throwaway
2...16 x 25 x 2
UNiT 5TO UNIT [CONOMISERIV VERT. ECONIV CORNER WEIGHT (A) CORNER WEIGHT [B) CORNER WEIGHT (C) CORNER WEIGHT(D
WEIGHT WEIGHT M P.E. WEIGH1
5OTFQO04 500 227 50 22.7 90 4O.S 123 57 120 54 125 57 130 59
5OTFQO05 520 23B 130 59 125 57 130 53 135 B1
5OTFQO06 550 249 138 63 132 GO 138 G2 142 B4
5OTFQO0? 590 268 148 B8 142 G4 148 G7 152 GS
LB KG LB KG LB XG LB XG LB KG LB KG LB XG
NOTES:
I. OIMEN5[ON5 IN E ] ARE IN MILL[METER5.
2. _CENTER OF GRAVITY. REAR
3. @ DIRECTiON OF AiR FLOW.
4. DUCTWORK TO BE ATTACHED TO ACCESSORY ROOF CURB ONLY. ,OUTDOOR COlL
5. MINIMUM CLEARANCE (LOCAL CODES OR JURISDICTION MAY - -
o. BOTTOM TO COMBUSTIBLE SURFACED (WHEN NOT USING CURB)
0 INCHES, ON HORIZONTAL DISCHARGE UNITS WITH ELECTRIC _2" 7
PREVAIL)= CORNER A3
HEAT l INCH CLEARANCE TO DUCTWORK FOR l FOOT. _ [800]
b. OUTDOOR COIL, FOR PROPER AIR FLOW, 36 INCHES
ONE BIDE, 12 INCHED THE OTHER. THE 51DE GETTING THE _ . I
GREATER CLEARANCE IS OPTIONAL.
c. OVERHEAD, 50 INCHED TO ASSURE PROPER OUTDOOR FAN C
OPERATION.
d. BETWEEN UNITS, CONTROL BOX SIDE, 42 IN. PER NEC. SIDE
e. BETWEEN UNIT AND UNGROUNDED SURFACED, CONTROL BOX w=--I
SIDE, 38 IN. PER NEC.
fI BETWEEN UNIT AND BLOCK OR CONCRETE WALLS AND OTHER
GROUNDED SURFACES, CONTROL BOX SIDE, 42 IN. PER NEC.
g. HORIZONTAL SUPPLY AND RETURN END, 0 INCHES WHEN THE i
ALTERNATE CONDENSATE DRAIN ]5 UBED. 3' S"
5. WITH THE EXCEPTION OF THE CLEARANCE FBR THE OUTDOOR
COIL AS STATED IN NOTES Bu, b, AND c_ A REMOVABLE
FENCE OR BARRICADE REQUIRES NO CLEARANCE.
7. UNITS MAY BE INSTALLED ON COMBUSTIBLE FLOORS MADE
FROM WOOD OR CLASS A, B, OR C ROOF COVERING MATERIAL.
8. THE VERTICAL CENTER OF GRAVITY IS 1" G 1/2"[4703 UP
FROM THE BOTTOM OF THE BABE RAIL.
[1144.]
CORNER "D"y
F ILTER/ECONOM[ZER ACCESS
\
LEFT
2 'l O"
[BlO]
INDOOR
COIL
OUTSIDE AIR
2' 9 3/8" E848] ]
F/ ECONOMISER IV AND
F_F/PoWER EXHAUS_
ECONOMISER[V HOOD
I RETURN AIR OPENING I
i
CORNER "B"
VERT BALI
BOTTOM POWER CHART,
THESE MOLE5 REQ'D FOR U5E
WITH ACCESSORY PACKAGES
CRBTMPWROO1AOl, 2A01
THREADED WIRE REQ'D HOLE
CONDUIT13/4"1/4.1/2"1/2"(001)(002)SIZE _
5ELECT EITHER 3/4" OR 1 1/4"
FOR POWERt DEPENDING ON WIRE SIZE.
1/2"
[ll 4]
1" B 1/4" [438]
FOR ECONOM]$ER IV
20" 3 3/15"
FILTER ACCESS
(OlSPO5ABLE FILTERS)
[81] RIGHT BIDE
0"10!5/16" <_ RETURN AIR
[27B]
O' 5 3/8"
_ [137]
CONNECTION SIZES
1 3/8" DIA. [35] FIELD POWERSUPPLY HOLE
2" D]A. [51] POWERSUPPLY KNOCKOUT
1 3/4" DIA. [44] CHARGING PORT HOLE
BLOCKOFF
PANEL
DO r----i
ViEW S 5
2" B 5/16"
[846.5]
41
IgF°; °I T
O' 4 S/1B"
[115.83 TYP 3' S
EGSILEFT SIDE
9/1B" [104G]
Fig. 6 -- Base Unit Dimensions
Step 5 -- Make Electrical Connections
Unit cabinet must have an uninterrupted, unbroken electri-
cal ground to minimize the possibility of personal inju U if
an electrical fault should occm: This ground may consist of
electrical wire connected to unit ground lug in control com-
partment, or conduit approved for electrical ground when
installed in accordance with NEC (National Electrical
Code), ANSI/NFPA (American National Standards Insti-
tute/National Fire Protection Association) 70 (latest year),
and local electrical codes. Failure to follow this warning
could result in the installer being liable for personal inju U
of others.
FIELD POWER SUPPLY -- All units except 208/230-v
units are facto U wired for the voltage shown on the nameplate.
If the 208/230-v unit will be connected to a 208-v power sup-
ply, the transformer must be rewired by disconnecting the
black wire from the 230-v temrinal on the transformer and
connecting it to the 200-v terminal from the transformel:
Refer to the unit label diagram for additional information.
Pigtails are provided for field wire connections. Use factory-
supplied splices or a UL (Underwriters' Laboratories)
approved copper/aluminum connectoc
When installing units, provide a disconnect per the
NEC. All field wiring must comply with the NEC and local
requirements.
Inst_dl field wiring as follows:
1. Install conduit through the side panel openings. For units
without electric heat, inst_dl conduit between the discon-
nect and control box.
2. [nst_dl power lines to terminal connections as shown in
Fig. 7.
3. For units with electric heat, refer to Table 2 and Accessory
Electric Heat Inst_dlation Instructions.
During operation, voltage to compressor terminals must be
within the range indicated on the unit nmneplate (also see
Tables 3A and 3B). On 3-phase units, voltages between phases
must be balanced within 2% and the cunent within 10%. Use
the formula shown in Tables 3A and 3B and Note 2, on page 12
to determine the percentage of voltage imbalance. Operation
on improper line voltage or excessive phase imbalance consti-
tutes abuse and may cause dmnage to electrical components.
Such operation invali&_tes any applicable Carrier w_uranty.
NOTE: If the unit is mounted on a roof curb and the electrical
power will be run up "thin-the-bottom," be sure to choose the
proper accessory kit shown in Fig. 1. This kit, available from
your local distributor, ensures a leliable watertight connection.
Refer to the thru-the-bottom accessory installation instructions
for information on wiring the unit.
BLK _
<_ _J_YEL_"
I
I
I
-BLK ? TO ii_P
FIELD POWER SUPPLY
_ _l_l_l_ _ _ _ EQUIPMENT
208/230-1-60 i PER NEC i
FIELD POWER SUPPLY
208/230-3-60 I- - _l_l_l_ _ _ _ EQUIPMENT
(SIZES 004 AND 005) i DISCONNECT i_ GROUND
r DISCONNECT i 3-GROUND
L
BLK_ I_ BLU_ TO COMP
I
I
PER NEC i
L
BLK_
<_A%<_i
208/230-3-60 FIELD POWER SUPPLY
460-3-60 I- 51 3- GROUND
(SIZES 006 AND 007) i PER NEC i
_c_'_C-T, _EQD_PMENT
L
<_ Q_YEL_:_BLU
I I
I I
I I
FIELD POWER SUPPLY
460-3-60 I-- _l_l_l___ = EQUIPMENT
(SIZES 004 AND 005) I PER NEC I
_-i BLK?
I I
DISCONNECT I_ GROUND
L --
TO
TB2
TO COMP
(BLU)
FIELD POWER SUPPLY
575-3-60
SIZE 004 AND 005) i PER NEC I
_1 _1_1_ _ _
r ID--ISCONNECT _= GROuNDEQUIPMENT
I. _
LEGEND
C -- Contactor
COMP -- Compressor
IFC -- Indoor Fan Contactor
NEC -- National Electrical Code
TB -- Terminal Block
COMP
TO
<_>Y<_YEL_'
575-3-60 r DISCONNECT i 3- GROUND
(SIZES 006 AND 007) i PER NEC i
Fig. 7 -- Power Wiring Connections
FIELD POWER SUPPLY
_ _l_l_l_ _ _ _ EQUIPMENT
L
Table2-- Electric Heating Capacities
50TFQ VOLTAGE ACCESSORY ACCESSORY HEATER SINGLE POINT BOX
UNIT PART NUMBER PACKAGE NO.
SIZE (60 Hz) kW CRHEATER - - - A00 CRSINGLE---A00
3.3/ 4.0/ 4.4 001 --
208/230/240 4.9/ 5.8/ 6.5 002 --t
(single phase) 7.9/ 9.6/10.5 004 004
004 208/230/240 6.5/ 8.0/ 8,7 003 --
005 208/230/240 6.5/ 8.0/ 8,7 003 --
006 208/230/240 12.0/14.7/16.0 005 002
007 19.9/24.3/26.5" 004 & 006 003
*Two heater packages required to provide kW indicated.
1-Use CRSINGLE004A00 for units with convenience outlet.
**Use CRSINGLE005A00 for units with convenience outlet.
tl-Use CRSINGLE002A00 for units with convenience outlet.
***Use CRSINGLE002A00 for units with high-static motor and convenience outlet.
NOTES:
1. The rated heater voltage is 240 and 480 v. If power distribution voltage varies from rated heater voltage, heater kW will vary accordingly.
2. To determine heater kW at voltages other than those shown in table, use the following formula:
Heater kW new = Heater kW rated x (unit power distribution voltage/rated heater voltage) 2
As an example:
For a 16 kW heater rated at 240 v with a power distribution voltage of 216 v
kW new = 16 kW (215/240) 2
kW new = 12.8 kW (rating at 215 v)
(3 phase) 7.9/ 9.6/10.5 004 --
460/480 8.1/ 8.8 007 --
(3 phase) 10.6/11,5 008 --
208/230/240 9.8/11.6/13.0" 002 & 002 004
(single phase) 13.1/16.0/17.4" 003 & 003 005
(3 phase) 12.0/14.7/16.0 005 002
460/480 10.6/11.5 008 --
(3 phase) 12.9/14.0 009 --
208/230/240 9.8/11.6/13.0" 002 & 002 005
(single phase) 13.1/16.0/17.4" 003 & 003 005
(3 phase) 18.8/19.3/21.0" 004 & 004 003
460/480 12.9/14.0 009 --
(3 phase) 21.1/23.0" 008 & 008 --
208/230/240 12.0/14.7/16.0 005 002
(3 phase) 18.8/19.3/21.0" 004 & 004 003
460/480 12.9/14.0 009 --
(3 phase) 21.1/23.0" 008 & 008 --
6.5/ 8.0/ 8.7 003 004
9.8/11.6/13.0* 002 & 002 004**
3.3/ 4.0/ 4.4 001 --
4.9/ 5.8/ 6.5 002 --
12.0/14.7/16.0 006 002
5.5/ 6,0 006 --
12.9/14.0 009 --
3.3/ 4.0/ 4.4 001 --t
6.5/ 8.0/ 8.7 003 004
16.8/19.3/21.0" 004 & 004 005
4.9/ 5.8/ 6.5 002 --
15.8/19.3/21.0" 004 & 004 003
5.5/ 6.0 006 --
21.1/23.0" 008 & 008 --
4.9/ 5.8/ 6.5 002 004
6.5/ 8.0/ 8.7 003 004
18.8/19.3/21.0" 004 & 004 005
4.9/ 5.8/ 6.5 002 --
7.9/ 9.6/10.5 004 --1-1-
19.9/24.3/26.5" 004 & 005 003
5.5/ 6.0 006 --
10.6/11.5 008 --
23.4/25.5" 008 & 009 --
4.9/ 5.8/ 6.5 002 --***
7.9/ 9.6/10.5 004 002
5.5/ 6.0 006 --
10.6/11,5 008 --
23.4/25.5" 008 & 009 --
Table 3A -- Electrical Data (Units Without Electrical Convenience Outlet)
50TFQ
UNIT
SIZE
004
(3Tons)
005
(4Tons)
NOTE: Legend and Notes for Electrical Data are on page 12.
NOMINAL
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
IFM RANGE (each) OFM IFM
TYPE FLA FLA Nominal
STD 187 254 16.4 96.0 1.5 3.1
ALT 187 254 16.4 96.0 1.5 4.9
STD 187 254 10.2 75.0 1.5 3.1
ALT 187 254 10.2 75.0 1.5 4.9
HIGH-STATIC 187 254 10.2 75.0 1.5 5.8
STD 414 508 4.8 40.0 0.8 1.7 8.8 10.6 21.4
ALT 414 508 4.8 40.0 0.8 2.1 8.8 10.6 22.2
HIGH-STATIC 414 508 4.8 40.0 0.8 2.6 8.8 10.6 22.7
STD 518 632 3.8 31.0 0.8 1.7 -- -- 6.4
ALT 518 632 3.8 31.0 0.8 2.1 -- -- 7.1
HIGH-STATIC 518 632 3.8 31.0 0.8 2.6 -- -- 7.5
STD 187 254 29.1 132.0 1.5 3.5
ALT 187 254 29.1 132.0 1.5 4.9
STD 187 254 16.8 91.0 1.5 3.5 6.5/ 8.7 18.0/20.9 48.5/ 52.1
ALT 187 254 16.8 91.0 1.5 4.9 6.5/ 8.7 18.0/20.9 49.9/ 53.5
HIGH-STATIC 187 254 16.8 91.0 1.5 5.8 6.5/ 8.7 18.0/20.9 50.8/ 54.4
VOLTAGE COMPRESSOR
MIn Max RLA LRA kW** FLA MCA
ELECTRIC
HEAT* POWER SUPPLY
-- -- 25.5/ 25.5
3.3/ 4.4 15.9/18.3 45.4/ 48.4
4.9/ 6.5 23.6/27.1 55.0/ 59.4
6.5/ 8.7 31.3/36.3 64.6/ 70.9
7.9/10.5 38.0/43.8 73.0/ 80.3
9.8/13.0 47.1/54.2 84.4/ 93.3
-- -- 26.9/ 26.9
3.3/ 4.4 15.9/18.3 46.8/ 49.8
4.9/ 6.5 23.6/27.1 56.4/ 60.8
6.5/ 8.7 31.3/36.3 66.0/ 72.3
7.9/10.5 38.0/43.8 74.4/ 81.7
9.8/13.0 47.1/54.2 85.8/ 94.7
-- -- 17.8/ 17.8
3.3/ 4.4 9.2/10.6 29.3/ 31.0
4.9/ 6.5 13.6/15.6 34.8/ 37.3
6.5/ 8.7 18.0/20.9 40.3/ 43.9
7.9/10.5 21.9/25.3 45.1/ 49.4
12.0/16.0 33.3/38.5 59.4/ 65.9
-- -- 19.2/ 19.2
3.3/ 4.4 9.2/10.6 30.7/ 32.4
4.9/ 6.5 13.6/15.6 36.2/ 38.7
6.5/ 8.7 18.0/20.9 41.7/ 45.3
7.9/10.5 21.9/25.3 46.5/ 50.8
12.0/16.0 33.3/38.5 60.8/ 67.3
-- -- 20.1/ 20.1
3.3/ 4.4 9.2/10.6 31.6/ 33.3
4.9/ 6.5 13.6/15.6 37.1/ 39.6
6.5/ 8.7 18.0/20.9 42.6/ 46.2
7.9/10.5 21.9/25.3 47.4/ 51.7
12.0/16.0 33.3/38.5 61.7/ 68.2
-- -- 8.1
6.0 7.2 17.1
11.5 13.8 25.4
14.0 16.8 29.1
-- -- 8.9
6.0 7.2 17.9
11.5 13.8 26.2
14.0 16.8 29.9
-- -- 9.4
6.0 7.2 18.4
11.5 13.8 26.7
14.0 16.8 30.4
-- -- 41.4/ 41.4
3.3/ 4.4 15.9/18.3 61.3/ 64.3
6.5/ 8.7 31.3/36.3 80.5/ 86.8
9.8/13.0 47.1/54.2 100.3/109.1
13.1/17.4 63.0/72.5 120.1/132.0
15.8/21.0 76.0/87.5 136.4/150.8
-- -- 42.8/ 42.8
3.3/ 4.4 15.9/18.3 62.7/ 65.7
6.5/ 8.7 31.3/36.3 81.9/ 88.2
9.8/13.0 47.1/54.2 107.7/110.5
13.1/17.4 63.0/72.5 121.5/133.4
15.8/21.0 76.0/87.5 137.8/152.2
-- -- 26.0/ 26.0
4.9/ 6.5 13.6/15.6 43.0/ 45.5
12.0/16.0 33.3/38.5 67.6/ 74.1
15.8/21.0 43.9/50.5 80.9/ 89.1
-- -- 27.4/ 27.4
4.9/ 6.5 13.6/15.6 44.4/ 46.9
12.0/16.0 33.3/38.5 69.0/ 75.5
15.8/21.0 43.9/50.5 82.3/ 90.5
-- -- 28.3/ 28.3
4.9/ 6.5 13.6/15.6 45.3/ 47.8
12.0/16.0 33.3/38.5 69.9/ 76.4
15.8/21.0 43.9/50.5 83.2/ 91.4
DISCONNECT
SIZEt
MOCP FLA LRA
30/ 3Oft 25/ 25 107/107
50/ 50tt 43/ 46 123/125
60/ 60tt 52/ 56 131/184
70/ 80 61/ 66 138/143
80/ 90 68/ 75 145/151
90/100 79/ 87 154/161"**
30/ 30it 26/ 26 111/111
50/ 5oft 45/ 47 127/130
60/ 70 53/ 57 135/138
70/ 80 62/ 68 143/148
80/ 90 70/ 77 149/155
90/100 80/ 89 158/166"**
20/ 2Oft 17/ 17 86/ 86
30/ 35tt 28/ 30 95/ 97
35/ 40it 33/ 35 100/102
45/ 45it 38/ 42 104/107
50/ 5oft 43/ 47 108/111
60/ 70 56/ 62 119/124
20/ 20it 19/ 19 90/ 90
35/ 35it 30/ 31 100/101
40/ 4Oft 35/ 37 104/106
45/ 5oft 40/ 43 108/111
50/ 6Oft 44/ 48 112/116
70/ 70 57/ 63 124/129
25/ 25tt 20/ 20 120/120
35/ 35it 31/ 32 129/130
40/ 4Oft 36/ 38 133/135
45/ 5oft 41/ 44 138/141
50/ 6Oft 45/ 49 142/145
70/ 70 58/ 64 153/158
15tt 8 45
20it 16 52
25tt 20 55
30tt 24 59
30tt 27 62
15tt 9 48
20it 17 55
25tt 21 59
30tt 25 62
30it 28 65
15it 9 62
20it 18 70
25tt 22 73
30tt 25 76
35tt 29 79
15tt 6 35
15tt 7 37
15tt 7 49
45/ 45tt 39/ 39 143/143
70/ 70 58/ 60 159/161
90/ 90 75/ 81 174/179
110/110 93/102 190/197
125/150 112/123 206/215
150/175 127/140 219/230
45/ 45tt 41/ 41 147/147
70/ 70 59/ 62 163/166
90/ 90 77/ 83 179/184
110/125 95/103 194/202
125/150 113/124 210/220
150/175 128/141 223/235
30/ 30tt 25/ 25 102/102
45/ 50tt 41/ 43 115/117
50/ 60tt 46/ 49 120/123
70/ 80 63/ 69 135/140
90/ 90 76/ 83 146/152
30/ 30tt 27/ 27 106/106
45/ 50tt 42/ 45 120/122
50/ 60tt 47/ 51 124/127
70/ 80 65/ 71 140/145
90/100 77/ 85 150/157
30/ 30tt 28/ 28 136/136
50/ 50tt 43/ 46 149/151
60/ 60tt 48/ 52 154/157
70/ 80 66/ 72 169/174
90/100 78/ 86 180/186"**
10
Table 3A -- Electrical Data (Units Without Electrical Convenience Outlet) (cont)
58TFG
UNIT
SIZE
OO5
(4 Tons)
(cont)
006
(5 Tons)
NOTE:Legend and Notes _rElectrical D_a are on page 12.
NOMINAL
V-PH-Hz
460-3-60
575-3-60
208/230-1-60
208/230-3-60
460-3-60
575-3-60 ALT 516 632 6.2
IFM
TYPE
STD
ALT 414 508 6.4
HIGH-STATIC 414 508 6.4
STD 516 632 6.7
ALT 516 632 6.7
HIGH-STATIC 516 632 6.7
STD 187 254 26.7
ALT 187 254 26.7
STD 187 254 15.4
ALT 187 254 15.4
HIGH-STATIC 187 254 15.4
STD 414 508 7.7
ALT 414 508 7.7
HIGH-STATIC 414 508 7.7
STD 516 632 6.2
HIGH-STATIC 516 632 6.2
VOLTAGE COMPRESSOR ELECTRIC
RANGE (each) OFM IFM HEAT* POWER SUPPLY
MIn Max RLA
414 508 6.4
LRA FLA FLA Nominal FLA
50.0 0.8 1.6 11.5 13.8
50.0 0.8 2.1 11.5 13.8
50.0 0.8 2.6 11.5 13.8
37.0 0.8 1.8 -- --
37.0 0.8 2.1 -- --
37.0 0.8 2.6 -- --
170.0 1.5 5.9
170.0 1.5 6.8
124.0 1.5 5.9
124.0 1.5 5.6
124.0 1.5 7.5
59.6 0.8 3.2
59.6 0.8 2.6
59.6 0.8 3.4
49.4 0.8 3.2 -- -- 11.0
49.4 0.8 2.6 -- -- 10.5
49.4 0.8 3.4 -- -- 11.1
kW**
6.0 7.2
14.0 16.8
23.0 27.7
6.0 7.2
14.0 16.8
23.0 27.7
6.0 7.2
14.0 16.8
23.0 27.7
-- -- 40.8/ 40.8
4.9/ 6.5 23.6/27.1 70.3/ 74.7
6.5/ 8.7 31.3/36.3 79.9/ 66.2
9.8/13.0 47.1/54.2 99.7/108.5
13.1/17.4 63.0/72.5 119.5/131.4
15.8/21.0 76.0/87.5 135.8/150.2
-- -- 48.5/ 48.5
4.9/ 6.5 23.6/27.1 78.0/ 62.4
6.5/ 8.7 31.3/36.3 87.6/ 93.9
9.6/13.0 47.1/54.2 107.4/116.2
13.1/17.4 63.0/72.5 127.2/139.1
15.8/21.0 76.0/87.5 143.5/157.9
-- -- 26.7/ 26.7
4.9/ 6.5 13.6/15.6 43.7/ 46.2
7.9/10.5 21.9/25.3 54.0/ 58.3
12.0/16.0 33.3/38.5 66.3/ 74.8
15.8/21.0 43.9/50.5 81.5/ 69.8
19.9/26.5 55.2/63.8 95.7/106.4
-- -- 26.6/ 26.6
4.9/ 6.5 13.6/15.6 43.6/ 46.1
7.9/10.5 21.9/25.3 53.9/ 58.2
12.0/16.6 33.3/38.5 68.2/ 74.7
15.8/21.0 43.9/50.5 81.4/ 69.7
19.9/26.5 55.2/63.8 95.6/106.3
-- -- 28.3/ 28.3
4.9/ 6.5 13.6/15.6 45.3/ 47.8
7.9/10.5 21.9/25.3 55.6/ 59.9
12.0/16.0 33.3/38.5 69.9/ 76.4
15.8/21.0 43.9/50.5 83.1/ 91.4
19.9/26.5 55.2/63.8 97.3/108.0
-- -- 13.6
6.0 7.2 22.6
11.5 13.8 30.9
14.0 16.8 34.6
23.0 27.7 48.3
25.5 30.7 52.0
-- -- 13.0
6.0 7.2 22.0
11.5 13.8 30.3
14.0 16.8 34.0
23.0 27.7 47.7
25.5 30.7 51.4
-- -- 13.8
6.0 7.2 22.8
11.5 13.8 31.1
14.0 16.8 34.8
23.8 27.7 48.5
25.5 30.7 52.2
MCA MOCP
13.1 15tt
22.1 25tt
30.4 35tt
34.1 35tt
47.7 50tt
13.4 15tt
22.4 25it
30.7 36tt
34.4 36tt
48.0 6oft
13.9 15it
22.9 25it
31.2 35it
34.9 35it
48.5 60tt
10.5 15tt
10.7 15it
11.1 15it
45/ 46tt
80/ 80
80/ 90
100/110
125/150
150/175
6o/5ott
8o/ 90
9O/lOO
11o/125
15o/15o
15o/175
3o/ 3oft
45/5ott
6o/ 6oft
7o/ 80
9o/ 90
lOO/11o
30/ 3oft
45/ 5oft
6o/ 60
70/ 80
90/ 90
100/110
30/ 3Oft
6o/ 5ott
6o/ 6oft
70/ 80
90/100
100/110
15tt 13 67
25tt 22 75
35tt 29 81
35tt 33 84
50tt 45 95
6Oft 49 98
15tt 13 82
25tt 21 89
35tt 29 96
35tt 32 99
6oft 45 110
6Oft 48 113
15tt 14 92
25it 22 99
35_t 30 105
35it 33 108
60ft 46 119
6Oft 49 122
15tt 11 56
15tt 10 67
15tt 11 75
DISCONNECT
SIZEt
FLA LRA
13 56
21 63
29 70
32 73
45 84
13 58
21 65
29 72
32 75
45 86
14 72
22 80
29 86
33 89
45 100
10 42
10 43
11 55
39/ 39 184/184
66/ 70 208/211
75/ 81 215/220"**
93/102 231/238"**
112/123 247/257"**
127/140 260/272"**
48/ 48 222/222
75/ 79 246/249
64/ 90 253/258"**
102/110 269/276"**
121/131 285/294"**
135/149 298/309"**
26/ 26 138/138
42/ 44 152/154
51/ 55 160/163
65/ 70 171/177
77/ 84 182/189"**
90/100 193/202"**
26/ 26 169/169
42/ 44 182/184
51/ 55 191/194
64/ 70 202/207
77/ 84 213/219"**
90/ 99 224/233"**
28/ 28 188/188
44/ 46 201/203
53/ 57 210/213
66/ 72 221/226
79/ 86 232/238"**
92/101 243/252"**
11
Table 3A -- Electrical Data (Units Without Electrical Convenience Outlet) (cont)
50TFQ
UNIT
SIZE
007
(6 Tons)
NOMINAL
V-PH-Hz
208/230-3-60
460-3-60
575-3-60
IFM RANGE (each) OFM IFM
TYPE MIn Max RLA LRA FLA FLA Nominal FLA
STD 187 254 22.7 146.0 1.4 5.8
HIGH-STATIC 187 254 22.7 146.0 1.4 7.5
STD 414 508 11.4 73.0 0.7 2.6
HIGH-STATIC 414 508 11.4 73.0 0.7 3.4
STD 518 632 9.1 58.4 0.7 2.6 -- --
HIGH-STATIC 518 632 9.1 58.4 0.7 3.4 -- --
LEGEND
FLA -- Full Load Amps
HACR -- Heating, Air Conditioning and Refrigeration
IFM -- Indoor Fan Motor
LRA -- Locked Rotor Amps
MCA -- Minimum Circuit Amps
MOCP -- Maximum Overcurrent Protection
NEC -- National Electrical Code
OFM -- Outdoor Fan Motor
RLA -- Rated Load Amps
VOLTAGE COMPRESSOR ELECTRIC HEAT*
POWER SUPPLY
kW**
4.9/ 6.5 13.6/15.6
7.9/10.5 21.9/25.3
12.0/16.0 33.3/38.5
15.8/21.0 43.9/50.5
19.9/26.5 55.2/63.8
4.9/ 6.5 13.6/15.6
7.9/10.5 21.9/25.3
12.0/16.0 33.3/38.5
15.8/21.0 43.9/50.5
19.9/26.5 55.2/63.8
6.0 7.2
11.5 13.8
14.0 16.8
23.0 27.7
25.5 30.7
6.0 7.2
11.5 13.8
14.0 16.8
23.0 27.7
25.5 30.7
MCA
35.6/ 35.6
52.6/ 55.1
63.0/ 67.2
77.2/ 83.7
90.5/ 98.7
104.6/115.3
37.3/ 37.3
54.3/ 56.8
64.7/ 68.9
78.9/ 85.4
92.2/100.4
106.3/117.0
17.6
26.6
34.8
38.6
52.2
55.9
18.4
27.4
35.6
39.4
53.0
56.7
14.0
14.7
MOCP FLA LRA
40/ 4oft 34/ 34 190/190
60/ 80tt 50/ 52 204/206
70/ 70 80/ 83 212/215
80/ 90 73/ 79 223/229
100/100 85/ 92 234/241"**
110/125 98/108 245/254"**
40/ 40tt 36/ 38 209/209
60/ 6Ott 52/ 54 223/225
70/ 70 62/ 65 231/234
80/ 90 75/ 81 242/248"**
100/110 87/ 94 253/260"**
110/125 100/110 264/273"**
2Oft 17 95
3Oft 25 102
35tt 33 109
40it 36 112
60tt 49 123
60it 52 126
20it 18 105
3Oft 26 112
40it 34 118
40it 37 121
60it 50 132
60it 53 135
15it 14 76
15it 14 84
% Voltage Imbalance
= 100 x max voltage deviation from average voltage
average voltage
Example: Supply voltage is 460-3-60.
A e C AB = 452 v
(_ AC = 455 v
BC = 464 v
Average Voltage =
462 + 464 + 465
3
DISCONNECT
SIZEt
*Heaters are field installed only.
tUsed to determine minimum disconnect size per NEC.
**Heater capacity (kW) is based on heater voltage of 208 v, 240 v and 480 v.
If power distribution voltage to unit varies from rated heater voltage, heater
kW will vary accordingly.
ttFuse or HACR circuit breaker.
***Optional disconnect switch is unavailable.
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.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage is
greater than 2%. Use the following formula to determine the percent of volt-
age imbalance.
1371
3
457
Determine maximum deviation from average voltage.
(AB) 457 -462 = 5 v
(BC) 464 - 457 = 7 v
(AC) 467 - 455 = 2 v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
7
% Voltage Imbalance = 100 x 457
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maximum
allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, con-
tact your oca e ectr cut ty company turned ate y.
12
Table 3B -- Electrical Data (Units With Electrical Convenience Outlet)
50TFQ
UNIT
SIZE
004
(3 Tons)
005
(4 Tons)
NOTE: Legend and Notes for Electrical Data are on page 15.
NOMINAL
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
IFM RANGE (each)
TYPE
STD 187 254 16.4
ALT 187 254 16.4
STD 187 254 10.2
ALT 187 254 10.2
HIGH-STATIC 187 254 10.2
STD 414 508 4.8
ALT 414 508 4.8
HIGH-STATIC 414 508 4.8
STD 518 632 3.8
ALT 518 632 3.8
HIGH-STATIC 518 632 3.8
STD 187 254 29.1
ALT 187 254 29.1
STD 187 254 16.8
ALT 187 254 16.8
HIGH-STATIC 187 254 16.8
VOLTAGE COMPRESSOR
MIn Max RLA LRA
OFM IFM HEAT*
FLA FLA Nominal
96.0 1.5 3.1
96.0 1.5 4.9
75.0 1.5 3.1
75.0 1.5 4.9
75.0 1.5 5.8
40.0 0.8 1.7 8.8 10.6 23.5
40.0 0.8 2.1 8.8 10.6 24.3
40.0 0.8 2.6 8.8 10.6 24.8
31.0 0.8 1.7 -- -- 8.2
31.0 0.8 2.1 -- -- 8.8
31.0 0.8 2.6 -- -- 9.2
132.0 1.5 3.5
132.0 1.5 4.9
91.0 1.5 3.5 6.5/ 8.7 18.0/20.9 53.3/ 56.9
91.0 1.5 4.9 6.5/ 8.7 18.0/20.9 54.7/ 58.3
91.0 1.5 5.8 6.5/ 8.7 18.0/20.9 55.6/ 59.2
ELECTRIC
kW**
-- -- 30.3/ 30.3
3.3/ 4.4 15.9/18.3 50.2/ 53.2
4.9/ 6.5 23.6/27.1 59.8/ 64.2
6.5/ 8.7 31.3/36.3 69.4/ 75.7
7.9/10.5 38.0/43.8 77.8/ 85.1
9.8/13.0 47.1/54.2 89.2/ 98.1
-- -- 31.7/ 31.7
3.3/ 4.4 15.9/18.3 51.6/ 54.6
4.9/ 6.5 23.6/27.1 61.2/ 65.6
6.5/ 8.7 31.3/36.3 70.8/ 77.1
7.9/10.5 38.0/43.8 79.2/ 86.5
9.8/13.0 47.1/54.2 90.6/ 99.5
-- -- 22.6/ 22.6
3.3/ 4.4 9.2/10.6 34.1/ 35.8
4.9/ 6.5 13.6/15.6 39.6/ 42.1
8.5/ 8.7 18.0/20.9 45.1/ 48.7
7.9/10.5 21.9/25.3 49.9/ 54.2
12.0/16.0 33.3/38.5 64.2/ 70.7
-- -- 24.0/ 24.0
3.3/ 4.4 9.2/10.6 35.5/ 37.2
4.9/ 6.5 13.6/15.6 41.0/ 43.5
6.5/ 8.7 18.0/20.9 46.5/ 50.1
7.9/10.5 21.9/25.3 51.3/ 55.6
12.0/16.0 33.3/38.5 65.6/ 72.1
-- -- 24.9/ 24.9
3.3/ 4.4 9.2/10.6 36.4/ 38.1
4.9/ 6.5 13.6/15.6 41.9/ 44.4
6.5/ 8.7 18.0/20.9 47.4/ 51.0
7.9/10.5 21.9/25.3 52.2/ 56.5
12.0/16.0 33.3/38.5 66.5/ 73.0
-- -- 10.3
6.0 7.2 19.3
11.5 13.8 27.5
14.0 16.8 31.3
-- -- 11.1
6.0 7.2 20.1
11.5 13.8 28.3
14.0 16.8 32.1
-- -- 11.6
6.0 7.2 20.6
11.5 13.8 28.8
14.0 16.8 32.6
-- -- 46.2/ 46.2
3.3/ 4.4 15.9/18.3 66.1/ 69.1
6.5/ 8.7 31.3/36.3 85.3/ 91.6
9.8/13.0 47.1/54.2 105.1/113.9
13.1/17.4 63.0/72.5 124.1/136.8
15.8/21.0 76.0/87.5 141.2/155.6
-- -- 47.6/ 47.6
3.3/ 4.4 15.9/18.3 67.5/ 70.5
6.5/ 8.7 31.3/36.3 86.7/ 93.0
9.8/13.0 47.1/54.2 106.5/115.3
13.1/17.4 63.0/72.5 126.3/138.2
15.8/21.0 76.0/87.5 142.6/157.0
-- -- 30.8/ 30.8
4.9/ 6.5 13.6/15.6 47.8/ 50.3
12.0/16.0 33.3/38.5 72.4/ 78.9
15.8/21.0 43.9/50.5 85.7/ 93.9
-- -- 32.2/ 32.2
4.9/ 6.5 13.6/15.6 49.2/ 51.7
12.0/16.0 33.3/38.5 73.8/ 80.3
15.8/21.0 43.9/50.5 87.1/ 95.3
-- -- 33.1/ 33.1
4.9/ 6.5 13.6/15.6 50.1/ 52.6
12.0/16.0 33.3/38.5 74.7/ 81.2
15.8/21.0 43.9/50.5 88.0/ 96.2
FLA MCA
POWER SUPPLY
DISCONNECT
SIZEt
MOCP FLA LRA
35/ 35tt 30/ 30 112/112
60/ 60tt 48/ 51 128/130
60/ 70 57/ 61 135/139
70/ 80 66/ 72 143/148
80/ 90 74/ 81 150/156"**
90/100 84/ 92 159/166"**
35/ 35tt 32/ 32 116/116
60/ 60tt 50/ 53 132/134
70/ 70 59/ 63 140/143
80/ 80 68/ 73 147/152
80/ 90 75/ 82 154/160"**
100/110 86/ 94 163/170"**
25/ 25tt 23/ 23 91/ 91
35/ 40tt 34/ 35 100/101
40/ 45it 39/ 41 104/106
50/ 50tt 44/ 47 109/112
50/ 60tt 48/ 52 113/116
70/ 80tt 61/ 67 124/129
30/ 30tt 25/ 25 95/ 95
40/ 40tt 35/ 37 104/106
45/ 45tt 40/ 43 109/111
50/ 60tt 45/ 49 113/116
60/ 60tt 50/ 54 117/120
70/ 80 63/ 69 128/134
25/ 25tt 26/ 26 125/125
40/ 40tt 36/ 38 134/135
45/ 45tt 41/ 44 138/140
50/ 60tt 46/ 50 143/145
60/ 60tt 51/ 55 146/150
70/ 80 64/ 70 158/163
15tt 10 47
20it 19 54
25it 23 58
30tt 26 61
35tt 30 64
15tt 11 50
25it 20 57
25it 24 61
30tt 27 64
35tt 31 67
15tt 12 65
25tt 20 72
25tt 24 75
3Oft 28 78
35tt 31 81
15tt 8 37
15tt 9 39
15tt 9 51
50/ 50tt 45/ 45 148/148
70/ 70 63/ 66 163/166
90/100 81/ 86 179/184
110/125 99/107 195/202
125/150 117/128 211/220
150/175 132/145 224/235
50/ 50tt 46/ 46 152/152
70/ 80 65/ 67 168/170
90/100 82/ 88 183/188
110/125 101/109 199/206
150/150 119/130 215/225
150/175 134/147 228/240
35/ 35tt 31/ 31 107/107
50/ 60tt 46/ 49 120/122
60/ 60tt 51/ 55 125/127
80/ 80 69/ 75 140/145
90/100 81/ 89 150/157
35/ 35tt 32/ 32 111/111
50/ 60tt 48/ 50 125/127
60/ 60tt 53/ 56 129/132
80/ 90 71/ 76 144/150
90/100 83/ 90 155/162
35/ 35tt 33/ 33 141/141
60/ 60tt 49/ 51 154/156
60/ 60tt 54/ 57 159/161
80/ 90 72/ 78 174/179
90/100 84/ 91 184/191"**
13
Table 3B -- Electrical Data (Units With Electrical Convenience Outlet) (cont)
50TFG
UNIT
SIZE
005
(4 Tons)
(cont)
006
(5 Tons)
NOTE: Legend and Notes for Electrical Data are on page 15.
NOMINAL
V-PH-Hz
460-3-60
575-3-60
208/230-1-60
208/230-3-60
460-3-60
575-3-60 ALT 518 632
IFM RANGE (each) OFM IFM HEAT*
TYPE MIn Max RLA LRA FLA FLA Nominal FLA
STD 414 508 6.4 50.0 0.8 1.8 11.5 13.8
ALT 414 508 6.4 50.0 0.8 2.1 11.5 13.6
HIGH-STATIC 414 508 6.4 50.0 0.8 2.6 11.5 13.8 33.3
STD 518 632 6.7 37.0 0.8 1.8 -- -- 12.2
ALT 518 632 6.7 37.0 0.6 2.1 -- -- 12.4
HIGH-STATIC 518 632 6.7 37.0 0.6 2.6 -- -- 12.8
STD 187 254 26.7 170.0 1.5 5.9
ALT 187 254 26.7 170.0 1.5 8.8
STD 187 254 15.4 124.0 1.5 5.9
ALT 167 254 15.4 124.0 1.5 5.6
HIGH-STATIC 187 254 15.4 124.0 1.5 7.5
STD 414 508 7.7
ALT 414 508 7.7
HIGH-STATIC 414 508 7.7
STD 518 632
HIGH-STATIC 518 632
VOLTAGE COMPRESSOR ELECTRIC
kW**
6.0 7.2
14.0 16.8
23.0 27.7
6.0 7.2
14.0 16.6 36.6
23.0 27.7 50.2
-- -- 16.1
6.0 7.2 25.1
14.0 16.8 37.1
23.0 27.7 50.7
-- -- 45.6/ 45.6
4.9/ 6.5 23.6/27.1 75.1/ 79.5
6.5/ 8.7 31.3/36.3 84.7/ 91.0
9.8/13.0 47.1/54.2 104.3/113.3
13.1/17.4 63.0/72.5 124.3/136.2
15.8/21.0 76.0/87.5 140.6/155.0
-- -- 48.5/ 48.6
4.9/ 6.5 23.6/27.1 78.0/ 82.4
6.5/ 8.7 31.3/36.3 87.6/ 93.9
9.8/13.0 47.1/54.2 107.4/116.2
13.1/17.4 63.0/72.5 127.2/139.1
15.8/21.0 76.0/87.5 143.5/157.9
-- -- 31.5/ 31.5
4.9/ 6.5 13.6/15.6 46.5/ 51.0
7.9/10.5 21.9/25.3 58.6/ 63.1
12.0/16.0 33.3/38.5 73.1/ 79.6
15.8/21.0 43.9/50.5 86.3/ 94.6
19.9/26.5 55.2/63.6 100.5/111.2
-- -- 31.4/ 31.4
4.9/ 6.5 13.6/15.6 48.4/ 50.9
7.9/10.5 21.9/25.3 58.7/ 63.0
12.0/16.0 33.3/38.5 73.0/ 79.5
15.8/21.0 43.9/50.5 86.2/ 94.5
19.9/26.5 55.2/63.6 100.4/111.1
-- -- 33.1/ 33.1
4.9/ 6.5 13.6/15.6 50.1/ 52.6
7.9/10.5 21.9/25.3 60.4/ 64.7
12.0/16.0 33.3/38.5 74.7/ 81.2
15.8/21.0 43.9/50.5 87.9/ 96.2
19.9/26.5 55.2/63.8 102.1/112.8
-- -- 15.8
6.0 7.2 24.8
59.6 0.8 3.2
59.6 0.8 2.6
59.6 0.8 3.4
6.2
49.4 0.8 3.2 -- -- 12.7
6.2
49.4 0.8 2.6 -- -- 12.2
6.2
49.4 0.8 3.4 -- -- 12.9
11.5 13.6 33.1
14.0 16.8 36.8
23.0 27.7 50.4
25.5 30.7 54.2
-- -- 15.2
6.0 7.2 24.2
11.5 13.8 32.5
14.0 16.8 36.2
23.0 27.7 49.8
25.5 30.7 53.6
-- -- 16.0
6.0 7.2 25.0
11.5 13.8 33.3
14.0 16.6 37.0
23.0 27.7 50.6
25.5 30.7 54.4
POWER SUPPLY
MCA MOCP
15.3 201-1-
24.3 251-1-
32.5 351-1-
36.3 401-1-
49.9 501-1-
15.6 2Ott
24.6 251-1-
32.8 351-1-
401-1-
601-1-
201-1-
301-1-
361-1-
401-1-
601-1-
16tt
16tt
16tt
5o/ 5ott
8o/ 80
9O/lOO
11o/125
125/15o
15o/175
5o/ 5ott
8o/ 90
9O/lOO
11o/125
15o/15o
15o/175
35/ 4ott
5o/6ott
60/ 70
80/ 90
90/100
110/125
35/ 351-1-
50/ 601-1-
60/ 70
80/ 80
90/100
110/125
35/ 351-1-
60/ 601-1-
70/ 70
80/ 80
90/100
110/125
201-1- 16 70
251-1- 24 77
351-1- 32 83
401-1- 35 86
601-1- 46 97
60tt 51 100
201-1- 15 84
251-1- 24 91
351-1- 31 98
401-1- 35 101
601-1- 47 112
601-1- 51 115
201-1- 16 94
251-1- 24 101
351-1- 32 107
401-1- 36 110
601-1- 48 121
601-1- 51 124
151-1- 13 57
151-1- 12 69
151-1- 13 77
DISCONNECT
SIZEt
FLA LRA
15 58
23 66
31 72
34 75
47 86
15 60
24 67
31 74
35 77
47 68
16 75
24 62
32 88
35 91
48 102
12 44
12 45
13 57
45/ 45 169/189
72/ 76 213/216
61/ 86 220/225"**
99/107 236/243"**
117/126 252/261"**
132/145 265/276"**
48/ 48 222/222
75/ 79 246/249
64/ 90 253/256"**
102/110 269/276"**
121/131 265/294"**
135/149 298/309"**
32/ 32 143/143
47/ 50 157/159
57/ 61 165/166
70/ 76 176/181
62/ 90 167/193"**
95/105 198/207"**
32/ 32 174/174
47/ 50 167/189
57/ 61 195/199
70/ 76 207/212
62/ 90 217/224"**
95/105 229/237"**
34/ 34 193/193
49/ 52 206/206
59/ 63 214/216
72/ 78 226/231
64/ 92 236/243"**
97/107 248/256"**
14
Table 3B -- Electrical Data (Units With Electrical Convenience Outlet) (cont)
50TFQ
UNIT
SIZE
007
(8 Tons)
NOMINAL
V-PH-Hz
208/230-3-60
460-3-60
575-3-60
IFM RANGE (each) OFM IFM HEAT*
TYPE MIn Max RLA LRA FLA FLA Nominal FLA
STD 187 254 22.7 146.0 1.4 5.8
HIGH-STATIC 187 254 22.7 146.0 1.4 7.5
STD 414 508 11.4 73.0 0.7 2.6
HIGH-STATIC 414 508 11.4 73.0 0.7 3.4
STD 518 632 9.1 58.4 0.7 2.6 -- --
HIGH-STATIC 518 632 9.1 58.4 0.7 3.4 -- --
LEGEND
FLA -- Full Load Amps
HACR -- Heating, Air Conditioning and Refrigeration
IFM -- Indoor Fan Motor
LRA -- Locked Rotor Amps
MCA -- Minimum Circuit Amps
MOCP -- Maximum Overcurrent Protection
NEC -- National Electrical Code
OFM -- Outdoor Fan Motor
RLA -- Rated Load Amps
VOLTAGE COMPRESSOR ELECTRIC
POWER SUPPLY
kW**
4.9/ 6.5 13.6/15.6
7.9/10.5 21.9/25.3
12.0/16.0 33.3/38.5
15.8/21.0 43.9/50.5
19.9/26.5 55.2/63.8
4.9/ 6.5 13.6/15.6
7.9/10.5 21.9/25.3
12.0/16.0 33.3/38.5
15.8/21.0 43.9/50.5
19.9/26.5 55.2/63.8
6.0 7.2
11.5 13.8
14.0 16.8
23.0 27.7
25.5 30.7
6.0 7.2
11.5 13.8
14.0 16.8
23.0 27.7
25.5 30.7
MCA MOCP
40.4/ 40.4 45/ 45tt
57.4/ 59.9 60/ 60tt
67.8/ 72.0 70/ 80
82.0/ 88.5 90/ 90
95.3/103.5 100/110
109.4/120.1 110/125
42.1/ 42.1 45/ 45tt
59.1/ 61.6 60/ 70
69.5/ 73.7 70/ 80
83.7/ 90.2 90/100
97.0/105.2 100/110
111.1/121.8 125/125
19.7 20tt
28.7 30it
37.0 40tt
40.7 45tt
54.4 6Oft
58.1 60it
20.5 25it
29.5 30it
37.8 40tt
41.5 45it
55.2 6Oft
58.9 6Oft
15.8 2Oft
16.4 20tt
% Voltage Imbalance
= 100 x max voltage deviation from average voltage
average voltage
Example: Supply voltage is 460-3-60.
A a C AB = 452 v
BC = 464 v
Average Voltage =
AC = 455 v
462 + 464 + 455
DISCONNECT
SlZEt
FLA LRA
40/ 40 195/195
56/ 58 208/211
85/ 89 217/220
78/ 84 228/233"**
90/ 98 239/245"**
103/113 250/259 ***
42/ 42 214/214
58/ 60 227/229
67/ 71 236/239
80/ 86 247/252"**
92/100 258/264"**
105/115 269/278"**
19 97
28 104
35 111
39 114
51 125
55 128
20 107
29 114
36 121
40 124
52 134
56 137
16 78
16 85
3
*Heaters are field installed only.
tUsed to determine minimum disconnect size per NEC.
**Heater capacity (kW) is based on heater voltage of 208 v, 240 v and 480 v.
If power distribution voltage to unit varies from rated heater voltage, heater
kW will vary accordingly.
ttFuse or HACR circuit breaker.
***Optional disconnect switch is unavailable.
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.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a pbase imbalance in supply voltage is
greater than 2%. Use the following formula to determine the percent of volt-
age imbalance.
1371
=--
3
= 457
Determine maximum deviation from average voltage.
(AB) 457 - 452 = 5 v
(BC) 464 - 467 = 7 v
(AC) 467 - 466 = 2 v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
% Voltage Imbalance =100 x
7
= 1.63%
This amount of phase imbalance is satisfactory as it is below the maximum
allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, con-
tact your local electric utility company immediately.
15
FIELD CONTROL WIRING -- Install a CmTier-approved
accessory thermostat assembly according to installation
instructions included with the accessory. Locate file thermostat
assembly on a solid wall in the conditioned space to sense aver-
age temperature.
NOTE: If using a Canier electronic thermostat, set the thermo-
stat configuration for "non-heat pump operation." This family
of products does not require an O terminal to energize the
reversing valve.
Route the thermostat cable or equivalent single leads of
colored wire from the subbase terminals to the low-voltage
connections on the unit (shown in Fig. 8 and 9) as described in
Steps 1 through 3 below.
NOTE: For wire runs up to 50 ft, use no. 18 AWG (American
Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft,
use no. 16 AWG insulated wire (35 C minimum). For over
75 ft, use no. 14 AWG insulated wire (35 C minimum). All
wire lmger than no. 18 AWG cannot be directly connected to
the thermostat and will require a junction box and splice at the
thermostat.
1. Connect the thermostat wires to the screw terminals of
the low voltage connection board.
2. Pass the control wires through the hole provided in the
comer post.
3. Feed the wire through the raceway built into the corner
post to the 24-v banier located on the left side of the
control box. See Fig. 10. The raceway provides the UL-
required clearance between the high-voltage and low-
voltage wiring.
DEFROST BOARD- The defrost bomd timer is set for a
30 minute defrost cycle from the factory. To adjust to a 50 or
90 minute cycle, remove the wire connected to the 30 minute
quick connect on the defrost board. See Fig. 11. Connect the
lead to the 50 or 90 minute quick connect on the defrost board,
depending on the application.
HEAT ANTICIPATOR SETTINGS -- Set the first-stage
heat anticipator setting at 0.8 and set the second-stage heat
anticipator setting at 0.3.
LOW-VOLTAGE
CONNECTIONS _,
COOL STAGE 1
FAN
HEAT STAGE 1
COOL STAGE 2
HEAT STAGE 2
24 VAC HOT
24 VAC COM
N/A
OUTDOOR AIR $1
SENSOR S2
THERMOSTAT DIPSWlTCH SETTINGS
ON
A B C D
¢ m
Y1/W2 - - -I - R
G- i - G
W/W1- - 7 _- Y1
Y/Y2 - - r- - i- - Y2
O/W2- _ _- -i- - W1
R- " W2
I I
4
4 -- - C
IPD/X
WIRE
CONNECTIONS
TO
LOW-VOLTAGE
SECTION
(CONNECTION
BOARD)
LEGEND
FieldWiring
NOTE: Underlined letter indicates active thermostat output when
configured for A/C operation.
Fig. 8 -- Low-Voltage Connections With or
Without Economizer or Two-Position Damper
CONTROL
CONNECTION
BOARD
-24 VAC ..... ,--,--,
_-RMTOCC---' i
CMPSAFE-- , T
THERMOSTAT CONTROL
CONNECTION
BOARD
__,,
{3E>........
........{52}
i"
_-FSD .......... "
_-SFS
NOT USED
9) o o
RACBWAY_
HOLE IN
END PANEL_
(H;DDEN)
;; i;;] ........._ ......................... ...............
Fig. 10- Field Control Wiring Raceway
0F2_ _0F1
l]c
P1
QUICK CONNECTS
FOR DEFROST TIMER
@-C
{_}--X-
Fig. 9 -- Low Voltage Connections
(Units with PremierLink TM Controls)
{3E}
30 50 90
Fig. 11 -- Defrost Board
16
Step 6 -- Adjust Factory-Installed Options
DISCONNECT SWITCH -- The optional disconnect switch
is non-fused. The switch can be locked in place for safety
purposes. The disconnect switch is only available for limited
applications. See electrical &_ta tables on pages 10-15 for dis-
connect switch usage.
CONVENIENCE OUTLET -- An optiomd convenience out-
let provides power for rooftop use. For maintenance personnel
safety, the convenience outlet power is off when the unit dis-
connect is off. Adjacent unit outlets may be used for service
tools. An optional "Hot Outlet" is available from file factory as
a special order item.
NOVAR CONTROLS -- Optional Novar controls (ETM 3051 )
ale available for replacement or new construction jobs.
MANUAL OUTDOOR-AIR DAMPER -- The outdoor-air
hood and screen me attached to the basepan at the bottom of
the unit (for shipping).
Assembl£;.:
1. Determine the mnount of ventilation required for build-
ing. Record the amount for use in Step 8.
2. Remove the tilter access panel by raising the panel and
swinging it outward. The panel is now disengaged from
the track and can be removed. No tools are required to
remove the filter access panel. Remove the outdoor-air
opening panel. Save the panels and screws. See Fig. 12.
3. Separate the hood and screen from the basepan by lemov-
ing the screws and brackets securing them. Save all
screws and discm'd the brackets.
4. Replace the outdoor air opening panel.
5. Place the hood on the front of the outdoor air opening
panel. See Fig. 13 for hood details. Secure the top of the
hood with the 6 screws removed in Step 3. See Fig. 14.
6. Remove and save the 8 screws (4 on each side) from the
sides of the manual outdoor-air &_mpel:
7. Align the screw holes on the hood with the screw holes
on the side of the manual outdoor-air dampel: See Fig. 13
and 14. Secure the hood with the 8 screws from Step 6.
8. Adjust the minimum position setting of the damper blade
by adjusting the manual outdoor-air adjustment screws on
the front of the damper blade. See Fig. 12. Slide the blade
vertically until it is in the appropriate position determined
by Fig. 15. Tighten the screws.
9. Remove and save the screws currently on the sides of
hood. Insert the screen. Secure the screen to the hood us-
ing the screws. See Fig. 14.
10. Replace the tilter access panel. Ensure that the filter
access panel slides along the tracks and is securely
engaged.
FILTER
ACCESS
PANEL
OUTDOOR AIt
OPENING
PANEL
SCREWS
(SIDE) _ --
MANUAL _
OUTDOOR-AIR
ADJUSTMENT
SCREWS
Fig. 12 -- Damper Panel with Manual
Outdoor-Air Damper Installed
HOOD TOP SCREWS
(HIDDEN)
SCREWS
SCREEN HOLDERS)
HOOD SIDES AND TOP-
HOOD
SIDE
Fig. 13 -- Outdoor-Air Hood Details
DAMPER
BLADE
ASSEMBLED
17