Specifications

ManualsBrandsWhite Rodgers ManualsConsumer electronics1F95-371

COMFORT-SET

90 SERIES

MULTI-STAGE INSTALLATION/CONFIGURATION

This White-Rodgers Automatic Setback

Digital Thermostat uses microcomputer

technology to provide precise time and

1F95-371: 7 Day programming; residen-

tial applications

ELECTRICAL DATA

Electrical Rating:

20 to 30 VAC, 50/60 Hz with common

0.05 to 1.5 Amps per terminal

2.5 Amps maximum total load (all

terminals combined)

INSTALLATION

WHITE-RODGERS

Part No. 37-6188B

Replaces 37-6188A

0121

DESCRIPTION

SPECIFICATIONS

temperature control. This thermostat offers

the flexibility to design heating and cooling

programs that fit building needs. This

Standard Systems:

Multi-stage gas, oil, electric.

THERMAL DATA

Setpoint Temperature Range:

45° to 99°F (7° to 37°C)

Operating Ambient Temperature:

32° to 110°F (0° to 43°C)

Operating Humidity Range:

90% non-condensing max.

Shipping Temperature Range:

-4° to 149°F (-20° to 65°C)

PRECAUTIONS

Do not short out terminals on gas valve

or primary control to test. Short or

incorrect wiring will damage thermostat

and could cause personal injury and/or

property damage.

Do not use on circuits exceeding

specified voltage. Higher voltage will

damage thermostat and could cause

shock or fire hazard.

Thermostat installation and all compo-

nents of the system shall conform to

Class II circuits per the NEC code.

To prevent electrical shock and/or

equipment damage, disconnect electric

power to system at main fuse or circuit

breaker box until installation is

complete.

Read all instructions thoroughly before

beginning installation.

CAUTION

WARNING

This thermostat is intended for use with a

low voltage system. Do not use on a line

voltage system.

Do not exceed ratings shown in the Specifi-

cations section, above. If in doubt about the

electrical ratings of your heating/cooling

system, have it inspected by a qualified

heating and air conditioning contractor or

licensed electrician.

All wiring must conform to local and

national electrical codes and ordinances.

This control is a precision instrument, and

should be handled carefully. Rough handling

or distorting components could cause the

control to malfunction.

NOTE

thermostat is adaptable to most 24 volt

residential forced air multi-stage systems

with electric or fossil fuel auxiliary.

Summary of content (8 pages)

PAGE 1
WHITE-RODGERS COMFORT-SET® 90 SERIES MULTI-STAGE INSTALLATION/CONFIGURATION INSTALLATION DESCRIPTION This White-Rodgers Automatic Setback Digital Thermostat uses microcomputer technology to provide precise time and temperature control. This thermostat offers the flexibility to design heating and cooling programs that fit building needs. This thermostat is adaptable to most 24 volt residential forced air multi-stage systems with electric or fossil fuel auxiliary.
PAGE 2
INSTALLATION ATTENTION! This product does not contain mercury. However, this product may replace a unit which contains mercury. Do not open mercury cells. If a cell becomes damaged, do not touch any spilled mercury. Wearing nonabsorbent gloves, take up the spilled mercury and place into a container which can be sealed. If a cell becomes damaged, the unit should be discarded. Mercury must not be discarded in household trash.
PAGE 3
MULTI-STAGE TERMINAL OUTPUTS Refer to equipment manufacturers’ instructions for specific system wiring information. You can configure the thermostat for use with either multi-stage electric heat systems or multi-stage gas systems. When configured for electric heat, the G terminal (blower/fan) will be energized on a call for heat. This thermostat is designed to operate a single-transformer system. If you have a twotransformer system, cut and tape off one transformer.
PAGE 4
INSTALLER CONFIGURATION BEFORE TURNING POWER ON, please read the following instructions. Before operating the system, you must configure the thermostat to operate properly with your equipment. The thermostat, as it comes from the factory, is configured to operate a standard multistage electric forced hot air system with a single stage air conditioning compressor. In this configuration, the thermostat will turn on the fan immediately on a call for heat.
PAGE 5
INSTALLER TABLE NOTE: You must be in the User Configuration Menu to enter the Installer Menu. Press TIME FWD and TIME BACK at same time. Step Press Button(s) Displayed (Factory Default) Press or 1 SET TIME DAY and SET (hold for approx. 3 seconds) ELECT HEAT FAN (ON) OFF to select: COMMENTS See Page Fan cycles with call for heat if ON. Fan always cycles with COOL stages. 4 2 TIME FWD SET CYCLE HEAT (05) 1 to 40 Selects HEAT anticipation adjustment.
PAGE 6
If the system has short-cycle protection, this item should not need to be enabled. However, if your system does not have shortcycle protection, turn COMP LOCK ON. This will protect the compressor from shortcycling and potential premature compressor failure. Note that COMP LOCK OFF permanently disables compressor lockout. If you need to temporarily disable compressor lockout, please see Lockout Bypass Option. Lockout Bypass Option FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY.
PAGE 7
CHECK THERMOSTAT OPERATION FAN OPERATION COOLING SYSTEM If your system does not have a G terminal connection, skip to “Heating System” section. 1. Turn power on to the system. 2. Press PROGRAM RUN . 3. Press FAN until FAN ON is displayed. The fan should begin to operate. 4. Press FAN until FAN AUTO is displayed. The fan should stop operating. HEATING SYSTEM 1. Press PROGRAM RUN . 2. Press SYSTEM until HEAT is displayed. If the heating system has a standing pilot, ensure that it is lit.
PAGE 8
WHITE-RODGERS EMERSON ELECTRIC CO. 9797 REAVIS ROAD ST. LOUIS, MISSOURI 63123-5398 www.white-rodgers.