Bryant II TSTAT-0-16 Instruction Manual download pdf

NOTE: Read the entire instruction manual before starting the

installation.

This symbol → indicates a change since the last issue.

INDEX

Page

SAFETY CONSIDERATIONS.....................................................1

INTRODUCTION..........................................................................1

INSTALLATION CONSIDERATIONS.......................................1

INSTALLATION........................................................................1-7

Thermidistat Control Location..............................................1-2

Set DIP Switches ......................................................................2

Install Thermidistat Control ..................................................2-3

Set Thermidistat Control Configuration ...............................3-6

System Start-Up and Checkout.............................................6-7

Final Settings ............................................................................7

HUMIDITY CONTROL FEATURES.....................................7-10

Humidification.......................................................................7-8

Dehumidification ...................................................................8-9

Vacation...............................................................................9-10

OPERATIONAL INFORMATION........................................10-19

WIRING DIAGRAMS ...........................................................11-19

THERMIDISTAT CONTROL TROUBLESHOOTING ............19

SAFETY CONSIDERATIONS

Read and follow manufacturer instructions carefully. Follow all

local electrical codes during installation. All wiring must conform

to local and national electrical codes. Improper wiring or installa-

tion may damage Thermidistat Control.

Recognize safety information. This is the safety-alert symbol

When you see this symbol on the equipment and in the instruction

manual, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAU-

TION. These words are used with the safety-alert symbol. DAN-

GER identifies the most serious hazards which will result in severe

personal injury or death. WARNING signifies a hazard which

could result in personal injury or death. CAUTION is used to

identify unsafe practices which would result in minor personal

injury or product and property damage.

INTRODUCTION

Bryant’s 7-day programmable Thermidistat Control is a wall-

mounted, low-voltage control which combines temperature and

humidity control in a single attractive unit. An extension of

Bryant’s proven line of thermostats, it provides separate set points

for heating and cooling, and now adds humidification and dehu-

midification. Different heating and cooling set points and times are

programmable for 4 periods per day and 7 days per week. The

Thermidistat Control can also be field-configured as a non-

programmable thermostat. When operating in the non-

programmable configuration it will still have both temperature and

humidity control. Humidify and dehumidify outputs provide direct

control of humidity. Batteries are not used. During power loss an

internal memory stores programs and settings for unlimited time,

and the clock continues to run for at least 8 hr.

INSTALLATION CONSIDERATIONS

A. Power

Note that this control does not require batteries and is not "power

stealing." It does require 24vac (R and C terminals) of the

low-voltage transformer to be connected to it for proper operation.

It will not operate without these 2 connections.

B. Models

There is a single programmable/non-programmable model for all

applications. It can be configured for AC or HP, 1- or 2-speed

compressor, and for dual fuel installations, allowing it to be used

in place of all Bryant thermostats.

C. Humidify Equipment and Connections

The humidify output connects directly to 24vac operated humidi-

fiers. No other connection or interlock is required. Any of several

installer-selectable operating modes are available.

D. Dehumidify Equipment and Connections

The dehumidify output connects to the dehumidify input on

variable-speed furnaces and fan coils. Additional dehumidification

is done by controlling the compressor. A variety of operating

modes are available.

E. Outdoor Temperature Sensor

Optimum performance is obtained when an outdoor temperature

sensor is used with the Thermidistat Control. Plan installation so

that 2 wires can be run from Thermidistat Control to an outdoor

location, preferably on the north side of the house or refer to

Installation Instructions included with the outdoor temperature

sensor for simplified connection. Sensor can be mounted to

outdoor unit and existing control wires may be used for its

connection. Details are provided in sensor instructions.

INSTALLATION

I. THERMIDISTAT CONTROL LOCATION

Thermidistat Control should be mounted:

• Approximately 5 ft (1.5m) from floor.

• Close to or in a frequently used room, preferably on an inside

partitioning wall.

Fig. 1—Thermidistat Control

HEIGHT (IN.) WIDTH (IN.) DEPTH (IN.)

4-1/4 7-1/2 1-3/8

A96373

installation and

start-up instructions

THERMIDISTAT™ CONTROL

Cancels: II TSTAT-0-16 II TSTAT-0-20

5-98

TSTAT

—1—

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1 2 3 4 5 6 ... 19 20

Summary of Contents

Page 1 - THERMIDISTAT™ CONTROL

NOTE: Read the entire instruction manual before starting theinstallation.This symbol → indicates a change since the last issue.INDEXPageSAFETY CONSIDE

Page 2

meaning that set points are not affected by the programmedschedule. While in vacation mode, the system provides tempera-ture and humidity protection f

Page 3 - adjustment

Fig. 5—Typical Fan Coil With1-Speed Heat PumpA97384O/W2Y1/W2W/W1GREW3THERMIDISTATTYPICALFAN COIL1-SPEEDHEAT PUMPW2GCYROW2CDHUMHUMBS1S2YRCRVS COOLI

Page 4

→ Fig. 9—FK Series Fan Coil With1-Speed Heat PumpA98280O/W2W/W1Y1/W2GROW2THERMIDISTATFK SERIESFAN COIL1-SPEEDHEAT PUMP W1GCYRW2OCDHUMHUMBS1S2Y/Y2RY1CD

Page 5

Fig. 13—Single-Stage Furnace With1-Speed Heat Pump (Dual Fuel)A97393O/W2W/W1Y1/W2GRTHERMIDISTAT1-STAGEFURNACE1-SPEEDHEAT PUMPWGYCYW2ROCDHUMHUMBS1S

Page 6

Fig. 17—Two-Stage Furnace With1-Speed Heat Pump (Dual Fuel)A97397O/W2W/W1Y1/W2GRTHERMIDISTAT2-STAGEFURNACE1-SPEEDHEAT PUMPW/W1GY/ Y2CYW2ORCDHUMHUM

Page 7 - (OPTION 17 ON)

Fig. 21—Variable-Speed 2-Stage Non-Condensing FurnaceWith 1-Speed Heat Pump (Dual Fuel)A97436O/W2W/W1Y1/ W2GRTHERMIDISTATFURNACE BOARD AFSB

Page 8

Fig. 25—Variable-Speed 2-Stage CondensingFurnace — Without DE Connection —With 1-Speed Heat Pump (Dual Fuel)A97420O/W2W/W1Y1/W2GRTHERMIDISTATVARIABL

Page 9

→ Fig. 29—Variable-Speed 2-Stage CondensingFurnace — With DE Connection —With 1-Speed Heat Pump (Dual Fuel)A98284O/W2Y1/W2W/W1GRW2THERMIDISTATVARIABLE

Page 10

WIRING DIAGRAM NOTES1. Refer to Fan Coil Installation Instructions for features and additional wiring information2. To activate dehumidify function on

Page 11

K. Power On CheckWhen AC power is first applied, all segments of display are turnedon for a few seconds. Following this, temperature display indicates

Page 12

• On a section of wall without pipes or duct work.Thermidistat Control should NOT be mounted:• Close to a window, on an outside wall, or next to a doo

Page 13 - (COMPRESSOR LO)

A94328SERVICE TRAININGPackaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, in

Page 14 - (FURNACE)

5. dF—for 1-speed dual fuel6. d2—for 2-speed dual fuel7. HS—for special 3-stage auxiliary heat with FK series FanCoil and 1-speed heat pumpWhen this i

Page 15

OPTION 4—FAN (G) ON WITH WThis selection determines whether fan (G) output is to be ON orOFF when any W (furnace or strip heat) output is ON. Mostfurn

Page 16

High Pressure Switch Kit includes required switch and instructionsfor proper operation. For all dual fuel installations, outdoortemperature sensor mus

Page 17

OPTION 14—HEAT/COOL DEAD BAND ADJUSTMENTThis option selects the minimum difference between heat and coolset points. A larger difference saves energy a

Page 18

B. To Test Cooling and Dehumidification:Press MODE button until COOL icon turns on. Cooling beginswithin 10 sec and remains on for 4 minutes. If syste

Page 19

3. Auto HumidifyThis feature is designed to eliminate the problem ofsweating windows in very cold weather. When selected, theset point is automaticall

Page 20 - SERVICE TRAINING

3. Dehumidify OffDehumidification can be turned off completely. This can bedone without changing existing set points.TO SELECT DEHUMIDIFICATION (BETWE