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There are two methods of verifying that the Comfort Control
operates the system as intended.
Method 1: Normal Mode
This can be accomplished by pressing the appropriate
keypad button(s) to cycle the system through each of the
available modes and increasing or decreasing the
setpoint to activate and deactivate the cycle.
The minimum on and off cycle time delays, selected
during the setup, will be enforced. Press the appropriate
keypad button for the filter timer, outdoor temperature
display and energy savings features to verify they are set
to the end user's desired preference.
Method 2: Manual Test Mode
The Comfort Control's load outputs can be verified using
the manual test mode. See Table 1 for navigating
through the manual test mode steps.
To Enter The Manual Test Mode:
1.) Set System Mode to OFF
2.) Set Fan to AUTO
3.) Press and hold Mode and Down Arrow at the same
time.
Figure 8
RESISTANCE
T deg F
(OHMS X 1000)
10K THERMISTOR
-15
138.9
-10
117.7
-5
99.9
0
85.1
5
72.7
10
62.3
15
53.5
20
46.1
25
39.8
30
34.5
4
The Manual test mode will time out and return to normal
operation after 1 minute from the last key press.
NOTE: The manual test mode allows the installer to ener-
gize the G fan relay , Table 1, Step 70, and then advance to
Step 72 to energize the Y compressor output with the fan
still operating. It is recommended that this method be used
to prevent damage to the compressor.
Table 1
Menu Item
(Press Mode or Fan)
G - Fan Relay
Y - Compressor
Contactor
(G - must be ON)
O - Switch Over Valve
W1 - Heating relay
W2 - Heating relay
LCD
Factory Use Only
Note: Press "$" Energy Savings key to exit manual test mode at any time - Step 70 78.
Table 2
RESISTANCE
T deg F
(OHMS X 1000)
10K THERMISTOR
35
30.0
40
26.1
45
22.7
50
19.9
55
17.4
60
15.3
65
13.5
70
11.9
75
10.5
Installer's Guide
Manual Test Mode
Setting (Choices)
Default
(Press Up or Down arrow)
"
Off
On / Off
"
Off
On / Off
"
Off
On / Off
"
Off
On / Off
"
Off
On / Off
"
"
_ _
All Icons On (See Fig. 8)
All Icons Off
Press and hold MODE to advance to
step 80 and press "$" Energy
Savings key to exit.
T deg F
10K THERMISTOR
80
85
90
95
100
105
110
115
120
Step
(Press Mode or Fan)
"
70
"
72
"
74
"
75
"
76
78
79 - 82
RESISTANCE
(OHMS X 1000)
9.3
8.3
7.3
6.5
5.8
5.2
4.7
4.2
3.8
Pub. No. 18-HD29D2-4
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