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Step 3: testing the thermostat – Robertshaw 9555 User Manual

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17. Replace thermostat cover by snapping into place.

18. Turn on power to system. Test thermostat as described in the fol-

lowing section.

Step 3: Testing the Thermostat

WARNING:

DO NOT SHORT (JUMPER) ACROSS TERMINALS
OF GAS VALVE OR SYSTEM CONTROL TO TEST
OPERATION. THIS WILL DAMAGE THE THERMO-
STAT AND VOID YOUR WARRANTY.

CAUTION: DO NOT SWITCH SYSTEM TO COOL IF THE TEMPERATURE IS

BELOW 50°F (10°C). THIS CAN DAMAGE THE AIR CONDITION-
ING SYSTEM AND CAUSE PERSONAL INJURY.

1. Place the AUTO-HEAT-OFF-COOL switch into

the COOL position.

2. Press the

ٚ

button until the temperature setting

is at least 3 degrees below the room temperature.

The air conditioning system should turn on within

a few seconds.

NOTE: ONCE THE THERMOSTAT TURNS OFF WHEN IN THE COOL MODE, A

BUILT IN 5-MINUTE DELAY PREVENTS THE SYSTEM FROM TURN-
ING ON AGAIN. THIS PROTECTS THE COMPRESSOR. NO ADDI-
TIONAL TIME DELAY RELAY IS REQUIRED. TO OVERRIDE THE 5-
MINUTE DELAY FOR INSTALLATION, PRESS THE RESET BUTTON.

Cut the J3 jumper
to enable
temperature limiting

W1

Y1

B

O

G

W
2
Y

2

Figure 7

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110-975D En.qxd 5/13/03 2:43 PM Page 7 (Black plate)