Honeywell Q539F User Manual

Honeywell

THE Q539 SUBBASES PROVIDE COOLING ANTICI PATORS. WIRING TERMINALS. AND MOUNTING BASES FOR T87F THERMOSTATS. MOST ALSO

PROVIDE SYSTEM AND FAN SWITCHING FOR

HEATING. COOLING. AND HEATING-COOLING THERMOSTATS.

□ Screw terminals for electrical connections are lettercoded for quick, accurate installation.

□ Shunt type carbon heater provides cooling anticipa tion for close temperature control.

THERMOSTAT

SUBBASES

□ Guide posts assure mounting and leveling necessary to maintain thermostat calibration.

□ Fan and system switch levers (available on most models) located at top edge for convenient control.

□ Indicator LED available on most models.

□ Mount directly on wall or on standard outlet box with accessory wallplate. i

□ Q539P with indicator LED for oil primary systems (HEAT-only).

Q539A,B,C,F,

D.T. Rev. 10-89

Form Number 60-2246—4

SPECIFICATIONS

IMPORTANT

THE SPECIFICATIONS GIVEN IN THIS PUBLICATION DO NOT INCLUDE NORMAL MANUFACTURING TOL

ERANCES. THEREFORE, THIS UNIT MAY NOT MATCH THE LISTED SPECIFICATIONS EXACTLY. ALSO,

THIS PRODUCT IS TESTED AND CALIBRATED UNDER CLOSELY CONTROLLED CONDITIONS, AND SOME MINOR DIFFERENCES IN PERFORMANCE CAN BE EXPECTED IF THOSE CONDITIONS ARE CHANGED.

TRADELINE MODELS

TRADELINE models are selected and packaged to provide ease of stocking, ease of handling, and maximum

replacement value. Specifications of TRADELINE models are the same as those of standard models except as noted below.

Q539A,J Thermostat Subbases—provide COOL-OFF-

HEAT system and AUTO-ON fan switching.

0539C Thermostat Subbase—provides COOL-OFF

system and AUTO-ON fan switching.

0539P Thermostat Subbases—provide HEAT-only

and indicator LED for oil primary systems.

FEATURES:

• TRADELINE package with cross reference label

and special instruction sheet.

• Textured beige finish designer models (available

on some TRADELINE models).

STANDARD MODELS

Refer to Table 1 for the general specif ications for 0539

Thermostat Subbases. ELECTRICAL RATINGS:

Subbase Switches:

Resistive: 2A at 30 Vac maximum. Inductive: 1.5 AFL, 7.5 ALR at 30 Vac maximum.

Cooling Anticipator—24 to 30 Vac. Optional Indicator LED—30 Vac. Terminal Designations: Refer to Table 2.

MOUNTING MEANS: Two screws provided for wall

mounting through holes and slots in subbase. Use Part No. 127293 Wallplate for mounting on an outlet box or for covering old thermostat marks.

DIMENSIONS: Diameter—3-11/16 in. [94 mm]; depth with

T87F—1-3/4 in. [45 mm).

OPTIONAL SPECIFICATIONS:

1. Indicator LED available on most models.

2. 0539A available with system switches marked

COOL-OFF-RESET-HEAT.

3. Models available with isolated heat-codi circuits for

--------------------------

installations with separate heating and cooling transformers or for systems requiring thermostat control of FAN operation.

ACCESSORIES:

1. Part No. 129044A Wallplate includes 6 in. [152 mm] wall ring for mounting Q539 Subbase on outlet box or for covering old thermostat mounting marks.

2. TG587F Thermostat guard protects T87F thermo stats and Q539 subbases against tampering, dam age and unauthorized adjustment of settings.

THERMOSTAT:

T87F Round Thermostat provides temperature control

for 24 to 30 V heating, cooling, or heating-cooling systems.

T87F Designer Round Thermostat provides tempera ture control for 24 to 30 V heating, cooling, or heating cooling systems; textured beige finish.

(continued on page 3)

ORDERING INFORMATION

WHEN PURCHASING REPLACEMENT AND MODERNIZATION PRODUCTS FROM YOUR TRADELINE WHOLESALER OR YOUR DISTRIBUTOR, REFER TO THE TRADELINE CATALOG OR PRICE SHEETS FOR COMPLETE ORDERING NUMBER, OR SPECIFY—

1. Order number. — Q539 Subbase, TRADELINE, If desired.

2. Optional Q539 Subbase specifications. If desired.

3. Accessories, If desired.

IF YOU HAVE ADDITIONAL QUESTIONS, NEED FURTHER INFORMATION, OR WOULD LIKE TO COMMENT ON OUR PRODUCTS OR SERVICES, PLEASE WRITE OR PHONE:

1. YOUR LOCAL HONEYWELL RESIDENTIAL SALES OFFICE (CHECK WHITE PAGES OF PHONE

DIRECTORY).

2. RESIDENTIAL DIVISION CUSTOMER SERVICE

HONEYWELL INC., 1885 DOUGLAS DRIVE NORTH MINNEAPOLIS, MINNESOTA 55422-4386 (612) 542-7500

IN CANADA—HONEYWELL CONTROLS LIMITED/HONEYWELL LIMITEE, 740 ELLESMERE ROAD, SCARBOROUGH, ONTARIO M1P 2V9, INTERNATIONAL SALES AND SERVICE OFFICES IN ALL

PRINCIPAL CITIES OF THE WORL

TABLE 1—MODEL SPECIFICATIONS

MODEL AND DESCRIPTION

Q539A Subbases provide system and fan switching and cooiing anticipation to controi heating and cooiing appiications.

Q539A1014, Q539A4026' for single heating and cooling transformer applications.

Q539A1022 with impedance relay reset switch.

Q539A1022 with indicator LED for impedance relay reset switch.

Q539A1022 with impedance relay reset switch for heat pump applications.

Q539A1121 with special resistor for gas air conditioning applications.

Q539A1147, Q539A4000‘ for applications with isolated heating and cooling circuits.

Q539A1162 used with W884 Comfort Control Center only.

SYSTEM

SWITCHING

(dpst and dp3t)

COOL-OFF-HEAT ON-AUTO

COOL-OFF-

HEAT-RESET

COOL-OFF-

RESET-HEAT

COOL-OFF-

RESET-HEAT

COOL-OFF-HEAT

COOL-OFF-HEAT ON-AUTO

COOL-OFF-HEAT

FAN

SWITCHING

(spdt)

ON-AUTO

ON-AUTO X X

ON-AUTO

ON-AUTO X X X

X X X

SUBBASE TERMINALS WIRING

X X X

X X X X

X X

o X p z

X X

X Fig. 3

X X

Rc R»

X X

DIAGRAMR W Y B

Fig. 1 Fig. 2

Fig.1 Fig. 2

Fig. 1 Fig. 2

Fig. 4 Fig. 5

Fig. 1 Fig. 2

Q539A1196 with “G” terminal isolated on heating for external low voltage fan switch.

Q539A1394 with indicator LED for oil burner applications"

Q539B1005 with system switching and cooling anticipation for heating and cooling applications. No fan switching.

Q539C1020, Q539C4008’' with system and fan switching and cooling anticipation for coolingonly applications.

Q539G1000 with system and fan switching for control of heatingonly system. No cooling anticipator. Summer fan operation available.

Q539H1009 with fan switching, cooling anticipation, and "Z” terminal for remote AUTO FAN switching. No system switching.

Q539J1006, Q539J400(y= with system switching and cooling antidpation for electric heat and heat pump applications. Fan relay controls AUTO FAN operation.

COOL-OFF-HEAT ON-AUTO

COOL-OFF-HEAT

COOL-OFF ON-AUTO

HEAT-OFF ON-AUTO

NONE ON-AUTO X

COOL-OFF-HEAT ON-AUTO

NONE X X X X X

X X X

X X

X X X

X Fig. 6

X Fig. 8

X X

X X X

X X

x“ Fig. 9

X Fig. 10

Fig. 7

Fig. 1 Fig. 2

Fig. 11

(continued on next page)

60-2246—4

Table 1 (continued)

SYSTEM

MODEL AND DESCRIPTION

Q539J1022 is the same as Q539J1006 for use in W884E Comfort Control Center only.

Q539P1018 with wiring terminals and indicator LED for heatingonly oil burner applications.

“Subbase has “4" terminal which is same as “B" terminal.

’’Rj,terminal for cooling transformer. “Designer model with textured beige finish. ‘‘Subbase has "1" terminal in place of "Z" terminal.

TABLE 2—TERMINAL DESIGNATIONS“.

TERMINAL R Transformer.

Y Cooling Contactor. B9(4)«

O®

P Heat Pump Contactor Coil.

CONNECTION

Cooling transformer. Heating transformer. Heating Relay or Valve.

Heating Damper Motor or Changeover Valve (if used). Cooling Damper Motor or Changeover Valve. Fan Relay Coil. Clogged Filter Switch or Lockout Switch (primary control).

Q539H low voltage fan switch for control of fan relay in AUTO position for both heating and cooling control.

SWITCHING

(dpst and dp3t)

COOL-OFF-HEAT ON-AUTO X

NONE NONE X X

FAN

SWITCHING

(spdt)

R W Y B G

SUBBASE TERMINALS

X X

R1, W1, Y1, (or B1) are not marked on thermostat subbase. They are mounting posts and electrical con nections for thermostat.

Cooling transformer in systems with isolated heating and cooling circuits.

Heating transformer in systems with isolated heating and cooling circuits.

Circuit only completed between "R” and "B” with system switch in HEAT position: “4” terminal is the same as Honeywell “B” terminal.

Circuit only completed between “R” and “O” with system switch in COOL position.

Only available on subbases with indicator lights.

Jumpered to humidity controller in Q539K/T87F hookup.

X X X

O X p z

X Fig. 12

Rc R-

WIRING

DIAGRAM

Fig. 11

INSTALLATION

WHEN INSTALLING THIS PRODUCT...

1. Read these instructions carefully. Failure to follow

instructions can damage product or cause a hazardous

condition.

2. Check ratings given in instructions and on product to

make sure product is suitable for your application.

3. Make sure installer is a trained, experienced service

technician.

4. After completing installation, use these instructions

to check out product operation.

CAUTION

1. Disconnect power supply before beginning in stallation to prevent electrical shock or equip

ment damage.

2. On systems using a low voltage gas control, never apply a jumper across the control coil

terminals. This may burn out the thermostat heat anticipator.

LOCATION

Locate the subbase about 5 ft [1.5 m] above the floor in

an area with good air circulation at average temperature.

Do not mount the subbase where it may be affected

by—

— drafts or dead spots behind doors or in corners. — hot or cold air from ducts. — radiant heat from the sun, fireplaces, or appliances. — concealed pipes and chimneys. — unheated (uncooled) areas behind the subbase,

such as an outside wall.

MOUNTING AND WIRING

Disconnect power supply before beginning installation

to prevent electrical shock or equipment damage.

All wiring must comply with local codes and ordinances.

1. In replacement applications, check the existing sub

base wires for cracked or frayed insulation. Replace any wires in poor condition. If the wire is plastered into the wall, make a hole next to the wires and loosen the wires so that

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