Product Overview

25 60-2507—3
W7100A-E
Use Table 7 to perform a checkout of the W7100 Controller in the heating mode.
TABLE 7—W7100 CONTROLLER CHECKOUT, HEATING MODE.
SYSTEM CHECKOUT
Step Action Verification
1 Open electrical disconnects on compressors. —
2 Remove red dust cover and connect 195770A Test Plug
from 4074EDJ Bag Assembly to W7100 to disable most
time delays. Jumper remote setpoint potentiometer
terminals P-P1 and jumper reset terminals 6 and 7. Be
sure that heating changeover terminals 9 and 10 are
closed (jumper if necessary).
—
3 Disconnect C7100 sensor from terminals T-T1. Connect
3400 ohm resistor (blue leads) from 4074EDJ Bag
Assembly at terminals T-T1 to simulate 60° F [16° C]
discharge temperature. Adjust setpoint knob to 64° F
[18° C].
—
4 Apply power. Within ten seconds the LEDs should indicate
that heating outputs are staged on.
5 Adjust the setpoint knob to 56° F [13° C]. Heating LEDs should indicate staging off within
45 seconds.
6 Return setpoint knob to 64° F [18° C]. If reset is used,
proceed to next step. If not, skip to step 9.
Heating LEDs should indicate all stages on in
about 30 seconds.
7 Adjust reset knob to 20° F [11° C] heat, setpoint knob to
44° F [7° C]. Replace the jumper at reset terminals 6 and
7 with the 1780 ohm resistor (red leads) from 4074EDJ
Bag Assembly to simulate a call for maximum reset.
The heating LEDs should remain on.
8 Remove jumper from heat changeover terminals 9 and 10
if installed in step 2. Remove 3400 ohm resistor (blue
leads) from terminals T-T1 and reconnect C1700 sensor.
Remove test plug and reinsert red dust cover on bottom
of W7100. Adjust setpoint and reset (if used) to initial
settings.
—
9 Close electrical disconnects on compressors. —