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MAIN POWER
LINE FROM
DISCONNECT
Field supplied
connectors
NOTES:
1. The power exhaust comes with a short (24 in. or 36 in.) low voltage extension harness. EconoMi$er 2 includes a longer low voltage har-
ness which is to be used to route back through the unit to the RTU controller in the RTU control box. Use separate knockout for high and
low voltage wires.
2. Low voltage wires with EconoMi$er X attach to wire leads on the EconoMi$er X plug.
3. Ensure main power line, disconnect, and fuse/breaker are sized per National Electric Code.
Power Exhaust Wiring with EconoMi$er and
PremierLink Controller or RTU-MP/OPEN
Use these instructions when installing the vertical power
exhaust with EconoMi$er2 and PremierLink or RTU-MP/
OPEN controller.
1.
A low voltage extension harness is supplied with the
EconoMi$er2 (without controller) beginning with unit
serial number 2703Gxxxxx. Prior to serial 2703Gxxxxx,
the supplied low voltage extension harness is not long
enough to reach the PremierLink control board and will
have to be field extended.
The two-wire low voltage harness and the low voltage
extension harness are wire tied together for shipping.
Separate the harnesses for installation and discard the
short low voltage extension harness supplied with power
exhaust.
2.
Insert the 2-wire low voltage harness plug from the
power exhaust into the top knockout on the
EconoMi$er2 accessory. (See Fig. 2 and 9.)
3.
From the rear of the EconoMi$er2 accessory, connect the
low voltage extension harness plug to the two-wire har-
ness from the power exhaust. (See Fig. 9.)
4.
Route the other end of the low voltage extension harness
to the PremierLink controller. (See Fig. 9.)
5.
The high voltage harness from the power exhaust and the
high voltage extension harness are plugged together for
shipping. Unplug these 2 harnesses for installation.
6.
Insert the high voltage harness plug from the power
exhaust into the bottom knockout on the EconoMi$er2
accessory. (See Fig. 2 and 9.)
7.
From the rear of the EconoMi$er2 accessory, connect the
long high voltage extension harness plug to the power
exhaust harness. (See Fig. 9.)
note 2
Power Supply
RTU CONTROL
Fig. 8 — Power Line Harness Routing (Top View of Unit Shown)
HIGH & LOW VOLTAGE WIRING HARNESS
ECONOMI$ER
Low Voltage Harness
note 1 and 2
To RTU
BOX
note 1
8.
Route the other end of the long high voltage extension
harness through the HVAC unit to the control box. (See
Fig. 8.) The harness must be routed through the grom-
mets provided in the unit. Do not drill routing holes. Be
careful not to route the power exhaust harness on top of
the indoor coil.
9.
Wire the end of the high voltage harness extension to the
power exhaust power source.
10. Field-Installed PremierLink Control (See Fig. 10): Con-
nect the gray wire from the low voltage extension har-
ness to J8-3 and the tan wire to common terminal.
Common is available from PremierLink terminal J1 or
the common side of the unit control power transformer
(the brown leads that go to unit ground). The other end of
the harness is connected to the power exhaust wiring.
NOTE: When the PremierLink board is configured for a
heat pump, it does not require the HS3/EXH/RVS, allow-
ing this terminal to be used for the power exhaust.
Factory-Installed PremierLink Control: The Premier-
Link J8-3 terminal is factory wired to a terminal board
TB2-15 (Small and Large Cabinet) or TB3-15 (Extra
Large Cabinet) located in the low voltage section to the
left of the control box. The gray wire from the harness
should be routed and wired to TB2-15 or TB3-15. The
tan wire should be routed and wired to the Central Termi-
nal Board Thermostat Terminal C (Common).
RTU-MP/OPEN Control: Connect the gray wire from
the low voltage harness extension to J11-3 and the tan
wire to the Central Terminal Board Thermostat Terminal
C (Common).
7
FILTER
COIL
High Voltage
Harness
INDOOR
FAN
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