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FIELD
To C11 for Small and
BLK
Large Cabinet
To IFC-11 for
Extra-Large Cabinet
POWER
YEL
To C13 for Small
and Large Cabinet
SUPPLY
BLU
To IFC13
for Extra-Large
Cabinet
GRN/YEL
EQUIP
GND
2 X 4 JUNCTION BOX
GROUND
FIELD
SUPPLIED
FUSED
DISCONNECT
SEPARATE
POWER
SOURCE
Fig. 7 — Power Exhaust Wiring for EconoMi$er IV and EconoMi$er X with Controller W7212 — 460 V Units
GREEN-YELLOW
EXH.
GRAY
FAN #1
GRAY
RELAY #1
1
2
3
4
5
6
7
8
9
A
B
POWER
LINE
PLUG
1
1
WHITE
2
2
RED
3
3
GREEN
4
4
OR
Field Supplied Wiring
1
Economizer actuator and controller are shipped
1
with the Economi$er not with power exhaust
2
Connection from End Switch Plug to the Economi$er
3
2
controller are made by installer
4
If a single power source is to be used, size wire to include
3
power exhaust MCA and MOCP.
For R-410A units, refer to the unit nameplate for MCA and
FIELD SUPPLIED
MOCP for installed power exhaust.
For R-22 units use the following calculations
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 an electric cooling, 6-ton R-22 unit with
MCA = 28.9 and MOCP = 35, with CRPWREXJ030A01 power exhaust.
MCA New = 28.9 amps + 1.5 amps = 30.4 amps
If the new MCA does not go over the MOCP published, then MOCP would
not change. The MOCP in this example is 35 amps, the MCA New is below
35, therefore the MOCP is OK. 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.
GRAY
EXH.
FAN #2
GRAY
GRD
RELAY #2
1
2
3
4
5
6
7
8
9
A
B
6
POWER
EXHAUST
ACCESSORY
TO ECONOMI$ER
1
ECONOMI$ER IV
ACTUATOR
ECONOMI$ER
CONTROLLER
24V
HOT
24V
END
COM
SWITCH
PLUG
TAN
1
1
+
2
2
GRAY
3
3
GRAY
GRAY
4
4
EF EF1
2
ECONOMI$ER X
PL-6
1 2 3 4 5 6 7 8 9 10 11 12
TAN
1
2
3
GRAY
4
1
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