5
Fig. 6 — Power Exhaust Wiring for EconoMi$er IV and EconoMi$er X — 208/230 V and 575 V Units
3
1
2
4
3
1
2
4
3
1
2
4
1
2
3
4
1
2
3
4
24 VAC
HOT
24 VAC
COM
+
EF
EF1
3
GRAY
GRAY
END
SWITCH
PLUG
GRAY
TAN
TAN
TA
N
WHIT
E
BLUE
BLUE
BLACK
BLAC
K
GREEN-YELLOW
BLACK
RED
ECONOMI$ER
CONTROLLER
TO ECONOMI$ER
ACTUATOR
2
2
1 2 3 4 5 6 7 8 9 10 11 12
1
2
3
4
GRAY
TAN
PL-6
BRN
YEL
ECONOMI$ER IV
ECONOMI$ER X
TO 575V POWER
OR
RED
BLACK
GREEN
GRD.
FIELD
POWER
SUPPLY
BLK
YEL
BLU
GRN/YEL
To C11 for Small and Large Cabinet
To IFC-11 for Extra-Large Cabinet
To C13 for Small
and Large Cabinet
To IFC13 for
Extra-Large Cabinet
POWER LINE
PLUG
BROWN
RELAY
1
3
6
9
B
A
7
4
GRD.
C1
C2
BLACK
BLACK
GREEN-YELLOW
POWER
EXHAUST
ACCESSORY
BROWN
RE
D
BLACK
575V
PRIMARY
SECONDARY
GROUND
FIELD SUPPLIED
2 X 4 JUNCTION BOX
TRANSFORMER
NO. HT01AH859
(FIELD-SUPPLIED
AND INSTALLED)
220V
FOR 575V POWER SUPPLY
FOR 208/230V SEPARATE
POWER SUPPLY
FIELD
SUPPLIED
FUSED
DISCONNECT
1
2
3
4
Field Supplied Wiring
575 V transformer No. HT01AH859 is ordered separately from power exhaust
Economizer actuator and controller are shipped with the Economizer -
not with power exhaust.
Connections from End Switch plug to Economizer controller are
made by installer.
If a single power source is to be used, size wire to include
power exhaust MCA and MOCP.
For R-410A units, refer to the unit nameplate for MCA and
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.
EXH.
FAN #1
EXH.
FAN #2
Summary of Contents for CRPWREXH021A01
Page 11: ......
