Friedrich VERT-I-PAK B-SERIES, Руководство по установке и эксплуатации, Страница: 14 / 20

14
920-164-02 (10-04)
Figure 11
Thermostat Wiring
G R Y B W2 E C
Fan Compressor Auxiliary Common
Heat
24V Reversing Emergency
Valve Heat
G R Y B W2 E X
100 ft. from the unit (as measured along the control voltage
wires), use No. 18 AWG color-coded wires to avoid excessive
voltage drop.
1. In replacement applications, check the existing ther-
mostat wiring for cracked or frayed insulation. Replace
any wiring in poor condition. All wiring must comply
with local codes and ordinances.
2. Run wiring (if necessary) to the location. Connect the
wires to the terminals on the back of the thermostat.
(See Figure 11.)
3. Push the excess wire back through the hole and plug
any opening with packing material to prevent drafts that
may affect thermostat performance.
4. Loosely secure the thermostat to the wall with screws
through the two mounting holes in the middle of the
thermostat.
5. Level the thermostat. Tighten the two mounting
screws.
6. Replace the thermostat cover.
C. Wire Thermostat Cable to Unit Terminal Strip
Attach thermostat wires to low-voltage terminal block on left
side of control box .
4) Condensate Drain Line
The condensate drain exits the unit 2" above fl oor level at the
right side front corner of the unit.
Install a condensate drain line of the same size as the drain
fi tting on the unit. PVC plastic pipe (3/4 in. I.D.) makes an
ideal condensate line (if local codes allow).
Run condensate drain line from unit to fl oor drain or outside
perimeter of building per local codes.
The condensate line must have a minimum drop of 1/4" per
running foot as it leaves the unit. When a horizontal run of
15 ft. or longer is required, it may be necessary to install a
vent tee in the drain line near the unit or use a larger diameter
drain line. This is to eliminate air trapping and allow proper
condensate drainage.
Heat pumps generate condensate during both cooling and
heating modes. Condensate drain line must be protected
from freezing to prevent condensate from backing up in
unit during freezing outdoor conditions. See page 4 for
Cold Climate accessories.
NOTE: If the unit is to be installed in an attic or furred space
where damage may result from condensate overfl ow, it may
be necessary to provide a fi eld-supplied secondary drain
pan. Always refer to local and national codes.
Installation - Final Checklist
Is power to the unit ON ?
Are circuit breakers/power disconnect inside
of the unit ON?
Is ductwork sealed for an airtight fi t?
Is the condensate drain line installed and run
to an appropriate disposal site. ?
Is the thermostat level and properly installed?
Is the heat anticipator indicator set to the
correct setting ?
Test Run
Test run in Heating, Cooling, and Emergency Heat mode:
a. Set fan control to ON. If fan runs, return control to
AUTO setting. This verifi es fan is working properly.
b. Set system control from OFF to COOL. Lower
temperature selector to 50°F or lower. The compressor
should energize and cool air should fl ow from room
registers. Once cooling test is complete, return system
control to OFF setting. Wait 5 minutes.
c. Set system control to HEAT and raise temperature
selector to 80°F or higher. Compressor should energize,
and warm air should fl ow from room registers.