White Rodgers 1F97W-71 Check Thermostat Operation, Electric Heat Systems, FAN Operation

2.Manual Changeover (Heating/Cooling Systems Only)

ON			Switch #1 OFF
			Switch #2 OFF
			Switch #3 (see step B5)
1	2	3

3.Heat Only Systems

ON			Switch #1 OFF
			Switch #2 ON
			Switch #3 (see step B5)
1	2	3

4.Cool Only Systems

ON			Switch #1 ON
			Switch #2 ON
			Switch #3 (see step B5)
1	2	3

5.Computed Energy Management Recovery (EMR)

— With EMR enabled, system will be energized before the next program period begins, to achieve programmed temperature by the beginning of the next program period.

ON			Switch #1 (see steps B1–B4)
			Switch #2 (see steps B1–B4)
			Switch #3 OFF
1	2	3

C. ELECTRIC HEAT SYSTEMS

For central electric heat systems where the blower is energized by a separate circuit through the fan relay (meaning that the fan turns on immediately on call for heat), clip wire W14 on the back of the thermostat (see fig. 13). If the thermostat is energizing electric heat sequenc- ers, DO NOT clip wire W14.

CHECK THERMOSTAT OPERATION

NOTE

When checking thermostat, Group B option switches #1 and #2 for automatic changeover must be in the OFF position. This will allow temporary setting of heat setpoints above cool setpoints. After system checkout, reset Group B option switch #1 to ON position if automatic changeover is desired (see SET GROUP B OPTION SWITCHES).

FAN OPERATION

1.Turn on power to the system. If the heat source has a standing pilot, be sure to light it.

2. Press	FAN	until FAN ON is displayed. The blower
	ON – AUTO

should begin to operate (this will work only on sys- tems with a G terminal).

3. Press	FAN	until FAN AUTO is displayed. The
	ON – AUTO

blower should stop operating within approximately one minute.

HEATING SYSTEM

1. Press	SYSTEM	until HEAT is displayed (it may already
	HEAT-OFF-COOL-AUTO

be displayed).

2.Press to adjust thermostat above room tem- perature to call for heat. The heating system should begin to operate.

COOLING SYSTEM

!CAUTION

To prevent compressor and/or property damage, if power to the compressor has been off or interrupted for more than 1 hour and the outdoor temperature is below 50°F, DO NOT operate the system for at least the amount of time the com- pressor was off! This will allow the compressor heaters to warm the compressor oils to avoid damage due to slugging.

1. Press	SYSTEM	until COOL is displayed.
	HEAT-OFF-COOL-AUTO

2.Press to adjust thermostat below room tem- perature to call for cool. The blower should come on immediately, followed by cold air circulation. How- ever, if the red LED on the thermostat front is flashing, the compressor lockout feature is operating (see Lockout Bypass Option to temporarily override the compressor lockout feature during testing).

After the system has been checked and is running prop- erly, determine if automatic changeover is desired (see

SYSTEM CONFIGURATION).

LOCKOUT BYPASS OPTION

FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY. OPERATORS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE, OR PERSONAL INJURY.

COMPRESSOR SHORT TERM

CYCLE PROTECTION

This thermostat has a built-in short term (5-minute) time delay. During this 5-minute period, the thermo- stat will lock out the compressor to allow head pres- sure to stabilize. If you want to override this feature

while testing thermostat operation, simply press TEMPVIEW and PRGMVIEW buttons at the same time at initial startup.

DO NOT USE THE LOCKOUT BYPASS OPTION UNLESS THE COMPRESSOR OIL HEATERS HAVE BEEN OPERATIONAL FOR 6 HOURS AND THE SYSTEM HAS NOT BEEN OPERATIONAL FOR AT LEAST 5 MINUTES.

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