Connect water lines from outdoor chiller unit to the fan
coil unit in accordance with the chiller manufacturer’s
recommendations.
STEP 5: CONNECTING WATER LINES
NOTICE: It is a requirement of the International
Mechanical Code (307.2.3) to install a secondary drain
or an auxiliary drain pan where damage to any building
components will occur as a result of overflow from the
equipment drain pan or stoppage in the condensate
drain piping from a cooling or an evaporator coil.
Follow local code requirements.
Refer to Fig. 2.2 for primary and secondary condensate drain
locations. Components for the PVC condensate trap are
provided in a separate bag with fan coil unit (see Fig. 2.10)
and should be cemented together with PVC pipe cement.
Do not use substitute trap. Do not cut
off or alter trap components.
Thread male adapter (see Fig. 2.10) into unit’s primary
condensate drain connection. Assemble and cement
remaining components together. Then cement assembly
to male adapter. The 45° elbow provides an offset from
beneath unit suction line for access to clean-out plug.
Run a condensate line from the trap to a suitable drain
that’s in accordance with local codes. Make sure the line
is pitched 1/4" per foot.
NOTICE: The secondary drain connection requires
field supplied components to complete installation.
Follow local code requirements.
NOTICE: Never connect condensate line to a closed
drain system.
Step 6: Installing the Condensate Trap & Line
ITEM
1
2
3
4
5
6
MALE ADAPTER, 3/4''
DESCRIPTION
ELBOW 45 , 3/4''
1/2'' PLUG
3/4'' X 1/2'' BUSHING
TEE, 3/4''
P-TRAP, 3/4''
3/4'' P-TRAP ASS'Y KIT
WG0127B
NOTE: PIPE SECTIONS ARE FIELD SUPPLIED.
1
2
3
5
4
6
SEE NOTE
SECOND 3/4" MALE ADAPTER SUPPLIED FOR OVERFLOW CONNECTION
*
*
FIGURE 2.10: CONDENSATE TRAP ASSEMBLY
Step 7: Wiring the Unit
All electrical and control wiring must be installed in
accordance with the codes listed in Section 1 of this
manual. Wiring diagram is provided in Figure 2.11. A
separate 230/60/1 power supply is recommended for the
unit. Use standard 15-amp circuit breaker and 14-gauge
wire from power supply to unit.
Connect power supply to Terminals L1 and L2 on the
high voltage terminal block. Connect a ground wire to the
equipment ground terminal located next to the high volt-
age terminal block.
Turn off electrical power supply
before servicing. Contact with live electric com-
ponents can cause shock or death.
Locate the room thermostat on a wall near the return air
box, between 40" to 48" from the floor. Connect the low-
voltage thermostat wiring from the room thermostat to
the low voltage control block in the unit.
Connect low voltage from air handler to condensing unit
as shown in figure 2.11.
Set DIP switches according to application. See page 13,
SpacePak J Series Control DIP switch settings.
Alternately, the unit may be configured to run on 115V,
60 Hz power. Refer to kit WG0858 for instructions
and material to convert from 230V to 115V shipped
with the unit.
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