T822/TS822 Spec Sheet

ManualsBrandsHoneywell ManualsThermostatsSingle Stage Heat Low Temperature Thermostat

Table Of Contents

PRODUCT DATA

68-0095-2

® U.S. Registered Trademark

T822, TS822

Heating/Cooling Thermostats

APPLICATION

T822 models provide low voltage (millivoltage) control of

heating or cooling systems.

FEATURES

• T822A, D, F and TS822A control heating systems.

• T822C, E control cooling systems.

• T822G controls heating or cooling systems.

• T822F provides Auto-On System switching.

• T822D, F, G heating anticipators are adjustable.

• T822A and TS822A heating anticipators are not

adjustable.

• T822C, F, G cooling anticipators are not adjustable.

• Coiled bimetal operates quiet, dust-free mercury

switch.

• All wiring connections are made on back of

thermostat.

• All models are mounted directly on wall or on standard

vertical outlet box.

• T822A, C, D and TS822A are available with positive Off.

• All models have vented covers for better air flow and

improved temperature sensing.

Contents

Application.........................................................................1

Features ............................................................................1

Specifications ....................................................................2

Ordering Information .........................................................2

Installation .........................................................................3

Settings and Adjustments..................................................5

Checkout ...........................................................................6

Summary of content (8 pages)

PAGE 1
T822, TS822 Heating/Cooling Thermostats PRODUCT DATA FEATURES • T822A, D, F and TS822A control heating systems. • T822C, E control cooling systems. • T822G controls heating or cooling systems. • T822F provides Auto-On System switching. • T822D, F, G heating anticipators are adjustable. • T822A and TS822A heating anticipators are not adjustable. • T822C, F, G cooling anticipators are not adjustable. • Coiled bimetal operates quiet, dust-free mercury switch.
PAGE 2
T822, TS822 HEATING/COOLING THERMOSTATS SPECIFICATIONS The specifications given in this publication do not include normal manufacturing tolerances. Therefore, this unit may not exactly match the listed specifications. 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.
PAGE 3
T822, TS822 HEATING/COOLING THERMOSTATS Mounting and Wiring 2-7/8 (73) 1. 1-1/2 (38) Disconnect power supply before beginning installation. IMPORTANT All wiring must comply with local codes and ordinances. NOTES: — 4-3/4 (121) — 3-1/4 (83) — The T822 or TS822 Thermostats are designed to be wall or vertical outlet box mounted. In a 250 or 500 mV applications, use No. 14 wire, if possible and make the run as short as possible (consider this when selecting a location).
PAGE 4
T822, TS822 HEATING/COOLING THERMOSTATS T822C T822A, D TEMP. RISE LIMIT CONTROL TEMP. FALL 2 1 L1 (HOT) L2 R 1 L1 (HOT) R L2 3 C1 O C1 ANTICIPATOR W 3 HI ANTICIPATOR FAN RELAY 2 ELECTRIC HEAT RELAY Y COMPRESSOR RELAY 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 ALTERNATE LIMIT CONTROL LOCATION. 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 3 T822D ADJUSTABLE HEAT ANTICIPATOR SHOWN. T822A HAS FIXED HEAT ANTICIPATOR.
PAGE 5
T822, TS822 HEATING/COOLING THERMOSTATS Heat Anticipator Setting (T822D,F,G Only) TS822A MILLIVOLTAGE GAS CONTROL TEMP. FALL PILOTSTAT CONTROL (IF USED) TH R TH/ PP H1 PP MILLIVOLTAGE GENERATOR 1 Y W LIMIT CONTROL 1 CONNECT R AND W TERMINALS FOR 750 mV SYSTEMS. CONNECT R AND Y TERMINALS FOR 250/500 mV SYSTEMS. M1294 Fig. 8. TS822A in typical heating application.
PAGE 6
T822, TS822 HEATING/COOLING THERMOSTATS CHECKOUT 6. CAUTION Checkout Method Hazard. Can damage thermostat heat anticipator. Avoid checking thermostat operation by shorting across system control terminals. T822A,D,F and TS822A Heating and T822G Heating or Cooling Thermostats IMPORTANT — T822A,D,F and TS822A can only be installed in heating applications. Perform only steps 1-5. — T822G can be installed in either heating or cooling applications. If installed for heating, perform steps 15.
PAGE 7
T822, TS822 HEATING/COOLING THERMOSTATS Recalibration These thermostats are calibrated at the factory and should not require recalibration. If the thermostat seems out of adjustment, first check for accurate levelling. To check calibration: 1. Move the temperature setting lever to the low end of the temperature scale. 2. Remove the thermostat cover. Move the temperature setting lever until the switch just makes contact. (The mercury in the switch will drop to the contact end of the tube.) 3.
PAGE 8
T822, TS822 HEATING/COOLING THERMOSTATS Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 68-0095-2 G.H. Rev. 1-03 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Scarborough, Ontario M1V 4Z9 Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. www.honeywell.