10
Installer’s Guide
Figure 12. 2/4WC** & 4DC** Single Phase 230 Volt Heat Pump Models
7b. 2/4WC** & 4DC** Single Phase 230 Volt Heat
Pump Models. See Figure 12.
Disconnect and remove the black lead from the De-
frost Board relay to the "L2" terminal of the contactor
(the black wire is attached to the “COM” terminal of
the relay). Firmly hold relay when removing wire.
Connect one of the black leads from the (SSR) on the
Control Module to the position on the unit contactor
"L2" (where the previous wire was removed). Connect
the other black lead on the (SSR) on the Contoller
Module to the "COM" terminal on the Defrost Board.
Connect Low voltage wires (BYO):
1.
Connect the 3-pin BYO low voltage wire harness
(supplied in kit) to J5 on the Control Module (3-
pin male connector). See Figure 11.
Note:
to ease
the insertion of the connector housing on to the J5
header, place the connector on the tips of the three
header pins. Angle the connector upward toward
the header latch while pushing connector over the
header pins.
2.
Connect the
yellow
lead wire of the harness to a
¼ ” male tab on the right hand side of the main
contactor (low voltage contactor coil terminal). See
Figure 12.
3.
Connect the
blue
lead wire of the harness to the
wire nut junction of the blue wire (use new wire
nuts in kit).
4.
Connect the
orange
wire to the wire nut junction
of the orange wire (use new wire nuts from kit).
5.
Connect the Liquid Line Sensor to J2 on the
Control Module. See Figure 11.
6.
Connect the Outdoor Temperature Sensor (Ambi-
ent Sensor) to J3 on the Control Module.
7.
Reinstall louvers and panels. Continue with step
8.
System Setup, page 14
.
1
1
2
3
4
ON
ON
OFF
OFF
S2
S2
TEST
TEST
S1
S1
AMBIENT
AMBIENT
LIQUID
LIQUID
B
Y
O
ALERT
ALERT
Lite
Lite
Port
Port
RED
RED
LED
LED
GREEN
GREEN
LED
LED
S2-1,2,3,4
S2-1,2,3,4
DIP SWITCHES
DIP SWITCHES
S1
S1
TEST
TEST
SWITCH
SWITCH
AMBIENT
AMBIENT
SENSOR
SENSOR
(OUTDOOR
(OUTDOOR
TEMP SENSOR)
TEMP SENSOR)
LIQUID
LIQUID
LINE
LINE
SENSOR
SENSOR
B,Y,O
B,Y,O
J5
J5
J2
J2
J3
J3
Figure 11. Control Module Switches, Connectors, and LEDs
IMPORTANT
— Retain this wiring diagram; please return this document to service information pack upon completion of work.
