Instruction/ maintenance manual of the product ST7997 Honeywell
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X-XX UL INST ALLA TION INSTRUCTIONS Molex® is a registered trademark of Molex Incorporated. Copyright © 1998 Honeywell Inc. • All Rights Reserved 69-1204 ST7997 Oil Burner Mounted Electric Fan T i.
69-1204 2 ST7997 OIL B URNER MOUNTED ELECTRIC F AN TIMER Fig. 1. ST7997A,B Oil Burner Mounted Electric Fan Timer dimensions in in. (mm). Mounting: Mounts directly on standard 4 in. (102 mm) by 4 in. (102 mm) junction box. Packaging: Unit pack and bulk pack.
69-1204 3 ST7997 OIL BURNER MOUNTED ELECTRIC F AN TIMER Fig. 3. ST7997 Oil Burner Mounted Electronic Fan Timer standard wiring connections. N HUM N EAC N 1K2 1K1 2K2 2K1 COOL HEAT MED HI MED LO LO HI .
69-1204 4 ST7997 OIL B URNER MOUNTED ELECTRIC F AN TIMER N HUM N N COOL HEAT MED LO LO HI BLACK RED WHITE VIOLET N OIL PRIMARY L1 L1 L2 L2 BURNER/ VALVE HUMIDIFIER EAC L2 THERMOSTAT 5-WIRE COMPRESSOR CONTACTOR RC RC F1 ISOLATION HEAT CALL CONTROL ELECTRONICS LIMIT RC W R C C G Y G Y G Y L1 GND SCREW TERMINAL 1/4 IN.
69-1204 5 ST7997 OIL BURNER MOUNTED ELECTRIC F AN TIMER N HUM N N MED LO LO HI BLACK RED WHITE VIOLET N OIL PRIMARY L1 L1 L2 L2 BURNER/ VALVE HUMIDIFIER EAC L2 THERMOSTAT 5-WIRE COMPRESSOR CONTACTOR RC RC F1 ISOLATION HEAT CALL CONTROL ELECTRONICS LIMIT RC W R C C G Y G Y G Y L1 GND SCREW TERMINAL 1/4 IN.
69-1204 6 ST7997 OIL B URNER MOUNTED ELECTRIC F AN TIMER Fig. 6. ST7997 Fan Timer location and settings for Heat Fan-Off and Heat Fan-On delay switches.
69-1204 7 ST7997 OIL BURNER MOUNTED ELECTRIC F AN TIMER Table 2. ST7997 Operating Sequence. Mode Action System Response HEAT Thermostat calls for heat. (W terminal is energized.) a . Thermostat calls for heat (closes oil primary control T-T connections.
69-1204 8 ST7997 OIL B URNER MOUNTED ELECTRIC F AN TIMER Home and Building Control Honeywell Limited-Honeywell Limitée 155 Gordon Baker Road North York, Ontario M2H 3N7 69-1204 G.R. 8-98 Home and Building Control Honeywell Inc. Honeywell Plaza P.O. Box 524 Minneapolis, MN 55408-0524 www.
An important point after buying a device Honeywell ST7997 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honeywell ST7997 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Honeywell ST7997 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell ST7997 you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell ST7997 will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell ST7997, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honeywell ST7997.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell ST7997. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell ST7997 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
