Download  Print this page

Honeywell Q682B Installation Instructions Manual

Heating, cooling, and heating/cooling thermostat, wallplate and subbase
Hide thumbs
   

Advertisement

Quick Links

Heating, Cooling, and Heating/Cooling
Thermostat, Wallplate and Subbase—
Check thermostat and subbase (if used) suitability for
the heating, cooling, or heating/cooling system. Refer to
Table 1.
Assemble tools required: flat-bladed screwdriver, hand
or power drill with 3/16 in. drill bit, wire cutter/stripper or
sharp knife, bubble level or plumb bob and line.
TABLE 1— SYSTEM COMPATIBILITY FOR NON-BATTERY POWERED THERMOSTATS.
Type of Heating System
to be Controlled
Electric (Line Voltage)—typical
baseboard and radiant
Gas—Direct Spark Ignition (DSI),
Intermittent Pilot (IP), and Standing Pilot
(SP)
Hot Water Zone
Oil
Vent Damper
Warm Air Zone
a If thermostat is not compatible with the system being controlled, the system will not operate. No hazard exists. The thermostat
will not be damaged unless it is used to directly control a line voltage system. For proper system operation, a Honeywell R841
or R8239D1015 Isolating Relay must be added to the thermostat control circuit.
b Consult manufacturer for installation requirements.

Installation Instructions

Preparation
cooling system at the main fuse panel. Most buildings have
a separate switch box or circuit breaker for disconnecting
power to the heating and cooling (if applicable) equipment.
or heating/cooling systems when thermostat is powered by
batteries. If thermostat is not powered by batteries, refer to
Table 1 for thermostat and system compatibility informa­
tion.
• The R8239D1015 Isolating Relay or R841 Silent Switching Center
must be installed in the thermostat control circuit.a
• Compatible. If not using battery backup, assure that 24 V control
transformer common is accessible for connection to thermostat
cable conductor and power to the transformer is not regularly
interrupted by high temperature or limit operation.
• Honeywell 2-wire valves are compatible.
• Some non-Honeywell 2-wire valves require an R8239D1015
Isolating Relay in the thermostat control circuit.a
• Some 3-wire valves require an R8239A1052 Isolating Relay in the
thermostat control circuit.a, b
• If not using battery backup, assure that the 24V control
transformer common is accessible for connection to thermostat
cable conductor and power to the transformer is not regularly
interrupted by high temperature, purge cycle, or limit operation.
• Honeywell damper motors are compatible.
• Some non-Honeywell damper motors require an R8239D1015
Isolating Relay in the thermostat control circuit. a Check control
amperage requirement.
• Most are compatible.
D. F. • Rev. 11-94 • ©Honeywell Inc. 1994 •
Honeywell
T8090A/Q682B
Assure power is off to the heating, cooling, or heating/
This thermostat is compatible with all heating, cooling,
Conditions/Compatibility
Form Number 69-0627B— 1
V2

Advertisement

loading

  Also See for Honeywell Q682B

  Related Manuals for Honeywell Q682B

  Summary of Contents for Honeywell Q682B

  • Page 1: Installation Instructions

    If thermostat is not compatible with the system being controlled, the system will not operate. No hazard exists. The thermostat will not be damaged unless it is used to directly control a line voltage system. For proper system operation, a Honeywell R841 or R8239D1015 Isolating Relay must be added to the thermostat control circuit.
  • Page 2: Installation

    Handle your new thermostat carefully; rough handling sealed tube. may interfere with its accuracy. Before unpacking, refer to If you have questions, call Honeywell Inc. at 1-800­ Fig. 1. 468-1502. Remove and discard the shipping wrap.
  • Page 3 Fig. 2— Mounting wallplate or subbase to wall. 3 SCREW HOLES' WITH PLASTIC ANCHORS HEATING/COOLING SUBBASE Fig. 3— Leveling methods for wallplate or OUTLET BOX MOUNTING (FIG. 4) subbase. Use a horizontally mounted outlet box if possible. If a vertical outlet box is used, mount the wallplate or subbase on a 202689A (white) Cover Plate Assembly (ordered separately).
  • Page 4 W ire Wallplate or Subbase Connect the wires to the corresponding terminals on the Follow the instructions provided by the heating, cool­ subbase. If labels do not agree with your new subbase, refer ing, or heating/cooling equipment manufacturer. If not to Table 2 and the installation instructions furnished with available, refer to the Typical Wiring Diagrams section at the subbase.
  • Page 5 Insert Clock Batteries If no current rating or heat anticipator setting is given, Power is supplied to the clock by the 24 Vac transformer measure the current with an ammeter. Proceed with the or two A A A alkaline batteries (included), or by the heating following steps.
  • Page 6: Heating/Cooling System

    Attach Thermostat Cover AUTO: Fan operates with the cooling equipment as Make sure the packing inserts in the thermostat base are controlled by the thermostat or with the heating equipment removed. as controlled by the plenum switch. In electric heat, heat Place the two tabs on the upper edge of the cover into the pump and fan coil systems, the fan is controlled by the mounting slots in the thermostat base (Fig.
  • Page 7 Place the system switch lever to COOL and the fan THERMOMETER READING AND THE HIGH TEMP­ switch lever to AUTO. The cooling equipment will oper­ ERATURE LEVER POSITION ARE APPROXIMATELY ate, and the fan will start. Allow for any time delay that may THE SAME AT THE INSTANT THE MERCURY be built into the compressor control circuit.
  • Page 8: Typical Wiring Diagrams

    Typical Wiring Diagrams Fig. 15—Typical hookup for clock powered by Fig. 17— Typical hookup for clock powered by separate 24-Vac transformer. system transformer. Clock powered by battery when heating or cooling equipment is on; clock takes power from system when heating equipment is off.
  • Page 9 Fig. 19— Internal schematic and typical hookup for T8090A Thermostat/191108AJ Wallplate in heating- only system. 69-0627B — 1...
  • Page 10 Honeywell 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 QUALITY IS KEY Printed in Mexico...

This manual is also suitable for:

T8090a