Table 3 -- Electric Resistance Heater Data
UNIT
50HJ
015
017
HEATER kW
Unit Voltages HEATER % HEAT MAXIMUM
STAGES PER STAGES*
208 230 240 460 480 575 600 STAGE
14 17 19 14 15 1 100 1
26 31 34 30 32 2 50/50 2
42 52 56 50 55 37 40 2 33/67 3
26 31 34 30 32 2 50/50 2
42 52 56 50 55 2 33/67 3
56 69 75 73 80 2 50/50 4
MINIMUM
Heating Cfm
Cfm L/s
3750 1770
208 230
39.3 43.4
71.3 78.9
117.0 129.4
71.3 78.8
117.0 129.4
155.9 172.4
3750 1770
*Maximum number of stages using accessory low-ambient kit or head pressure control device and low-ambient kit.
NOTE: Heaters are rated at 240,480, and 575 v.
HEATER AMPS
240 460 480
45.3 17.2 17.9
82.3 37.3 39.0
135.0 63.3 66.1
82.3 37.3 39.0
135.0 63.3 66.1
179.9 92.0 96.0
575 600
37.0 38.6
Table 4 -- Heat Anticipator Settings
UNIT
50HJ
015, 017
UNIT kW* STAGE 1
VOLTAGES
14/19 .40
26/34 .40
208/230-3-60 42/56 .66
56/75 .66
15 .40
32 .40
480-3-60
55 .40
80 .66
575-3-60 37 .66
*Heater kW is based on heater voltage of
STAGE 2
.66
.40
.66
.40
.66
.66
.66
208 v, 240 v, 480 v, and 575 v.
OPTIONAL NON-FUSED DISCONNECT -- On units with
the option_fl non-fused disconnect, incoming power will be
wired into the disconnect switch. Refer to Fig. 12 for wiring
for 100 and 200 amp disconnect switches. Units with an
MOCP (maximum overcurrent protection) under 100 will use
the 100 amp disconnect switch. Units with an MOCP over 100
will use the 200 amp disconnect switch. Refer to the applicable
disconnect wiring diagrmn.
To prevent breakage during shipping, the disconnect handle
and shaft ale shipped and packaged inside the unit control box.
Install the disconnect handle before unit operation. To install
the handle and shaft, perform the following procedure:
1. Open the control box door and remove the handle and
shaft from shipping location.
2. Ix_osen the Allen bolt located on the disconnect switch.
The bolt is located on the square hole and is used to hold
the shaft in place. The shaft cannot be inserted until the
Allen bolt is moved.
3. Insert the disconnect shaft into the sqmue hole on the dis-
connect switch. The end of the shaft is specially cut and
the shaft can only be inserted in the correct orientation.
UNIT WIRING 6T3 4T2 2T1 LOAD
100 BLK. YEL. BLU.
AMP
1
I , I
INoNFUSED0'sODNNEOT __L LIN J
FIELD POWER SUPPLY 5L3 3L2 1L1 LINE
UNIT WIRING
200 BLK. YEL. BLU.
AMP
,
I NON FUSED DISCONNECT LINE 1
FIELD POWER SUPPLY
NOTE: The disconnect takes the place of TB-1 as shown on the unit wir-
ing diagram label and the component arrangement label.
Fig. 12 -- Optional Non-Fused Disconnect Wiring
4. Tighten the Allen bolt to lock the shaft into position.
5. Close the control box dool:
6. Attach the handle to the external access door with the two
screws provided. When the handle is in the ON position,
the handle will be vertical. When the handle is in the OFF
position, the handle will be horizontal.
7. Turn the handle to the OFF position and close the dool:
The handle should fit over the end of the shaft when the
door is closed.
8. The handle must be in the OFF position to open the con-
trol box door.
OPTIONAL CONVENIENCE OUTLET-- On units with
optional convenience outlet, a l15-v GFI (ground fault inter-
rupt) convenience outlet receptacle is provided for field wiring.
Field wiring should be run through the 7/_-in. knockout pro-
vided in the basepan near the return air opening.
Step 7 -- Make Outdoor-Air Inlet Adjustments
MANUAL OUTDOOR-AIR DAMPER -- All units (except
those equipped with a factory-installed economizer) have a
manual outdoor-tdr damper to provide ventilation all: Damper
can be preset to adinit up to 25% outdoor tdr into return-air
compartment. To adjust, loosen securing screws and move
damper to desired setting. Then retighten screws to secure
damper (Fig. 13).
Step 8 -- Install Outdoor-Air Hood
IMPORTANT: If the unit is equipped with the optiomd
EconoMiSerIV component, move the outdoor-air tempera-
ture sensor prior to installing the outdoor-air hood. See the
Optional EconoMiSerIV and Economi$er2 section for
more information.
The same type of factory-installed hood is used on units
with 25% air ventilation and units with an EconoMiSel:
NOTE: The hood top panel, upper and lower filter retainers,
hood diain pan, baffle (size 017 units), and filter support
bracket tu'e secured opposite the condenser end of the unit. The
25% ADJUSTABLE
AIR DAMPER
÷I
SECURING SCREWS
Fig. 13 -- 25% Outdoor-Air Section Details
BASE
UNIT
10
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