manualshive.com logo in svg

Honeywell ST9141A1002, User Manual

Share
Download
Honeywell ST9141A1002 User Manual Download Page 6

6

Home and Building Control

Home and Building Control

Helping You Control Your World

Honeywell Inc.

Honeywell Limited—Honeywell Limitée

1985 Douglas Drive North

740 Ellesmere Road

Golden Valley, MN 55422

Scarborough, Ontario
M1P 2V9

Printed in U.S.A.

QUALITY IS KEY

Summary of Contents for ST9141A1002

Page 1: ...002 Electronic Fan Timer Application TheST9141A1002ElectronicFanTimerintegratescon trol of all combustion blower and circulating fan operations in a gas warm air appliance This control is the central wiring point for most of the electrical components in the furnace The basic purposes of the ST9141A1002 are to monitor the thermostat for heat cool and fan demands and run the induced draft blower mot...

Page 2: ...OT PROVIDED THERMOSTAT L2 N L1 H TO 120 VAC POWER SUPPLY COOLING CONTACTOR Y G R W C Y 1 2 UP SPEED DELAY OFF Z1 Z2 1 2 3 DI 1 2 3 4 N MOTOR LEADS C X XFMR SEC X EAC N HUM N CIR BLWR CONT COOL HEAT SV9500 HOT SURFACE PILOT IGNITION SYSTEM CONTROL 24 VOLT COMMON 24 VOLT HOT EFT OUTPUT 24 VOLT THERMOSTAT OR PRESSURE SWITCH COMBUSTION BLOWER HUMIDIFIER DENOTES LINE VOLTAGE CONNECTIONS DENOTES LOW VOL...

Page 3: ...BUSTION AIR BLOWER MED LOW HIGH LOW FUSE INTERLOCK N1 K2 HEAT K1 MED HIGH X SV9500 HOT SURFACE PILOT IGNITION SYSTEM CONTROL GND 24V EAC S EAC N L1 1 HUMIDIFIER HUM S HUM N N3 DI K3A 24 VAC 120 VAC N4 PRESSURE SWITCH N O N C COM TSTAT FT CN1 1 X OT 6 R OT 8 PS1 3 7 PS2 C 2 4 5 FT K3B M2 M1 L1 2 COOLING CONTACTOR 24V BURNER LIMIT PRIMARY LIMIT L1 H L2 N TRANSFORMER Fig 2 ST9141A1002 internal schema...

Page 4: ...t speed If a call for cool occurs circulating fan switches to cool speed after four second delay Thermostat ends call for fan Circulating fan is de energized G terminal is de energized Primary limit switch string opens Thermostat and ignition system are de energized and gas valve closes Combustion air blower is de energized Circulating fan is energized at heat speed LED flashes twice If there is a...

Page 5: ...eration resumes Burner limit opens Thermostat and ignition system are de energized and gas valve closes Combustion air blower and circulating fan heat speed are energized LED flashes once Burner limit closes Combustion air blower remains energized for postpurge timing The circulating fan remains energized for the selected delay off timing LED stops flashing Normal operation resumes Electronic air ...

Page 6: ...me and Building Control Helping You Control Your World Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 Printed in U S A QUALITY IS KEY ...

Reviews:

No comments

Brands by name

Popular brands

Load more brands