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9
Multi-zone Heat Pump Condensing Units
5. With a screw-
driver punch
out and re-
m o v e t h e
knock-outs in
the low & high
Volt electrical
connection
box.
Note: Power should be run to a
weather proof disconnect box usually
within 3 feet of the unit.
ELECTRICAL WIRING
6. From the disconnect box feed the high
Volt wires through a weather proof con-
duit and
run the power through the 7/8"
hole (from knock-out) in the unit’s electri-
cal box.
Anchor with a strain relief fitting.
Refer to the wiring diagram.
7. Following the wiring diagram,
run wires
to the High Volt pigtail in the control box
and attach L1 and L2 connections. Also
run green wire to ground lug.
T2HA INSTALLATION INSTRUCTIONS
8. Check wiring diagram for the required
number of low voltage wires to be run
between indoor and outdoor sections.
!
!
9. Connect the 24 Volt wiring matching
color to terminal block designation for
each zone as labeled. Refer to the wir
-
ing diagram on the inside front panel
of the condenser, and also refer to the
wiring diagram on the indoor unit. Low
Volt interconnect should be at least 18
AWG
.
CAUTION
Make sure that Low Volt wiring for
each circuit is connected to the match
-
ing Low Volt wiring.
10.
Replace the unit’s electric box cover and
the front panel and tighten screws
.
High Volt
Low Volt
Knock-out