White Rodgers HC-TST501CMMS User Manual

Dealer Installation

and Start-Up Instructions

500 Series Thermostat

Featuring Serial Communication

(-)HC-TST501CMMS

Manual 37-6943A

0830

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL AND SYSTEM
COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

Introduction to Thermostat and Communicating
System

The system consists of a premium indoor furnace or air handler, an outdoor AC
condensing unit or heat pump and touchscreen thermostat that is the HVAC command
center. All these devices are linked together and communicate using ClimateTalk
language protocol. The benefi ts of ClimateTalk are auto-confi guration of the system,
the ability to share information throughout the system for enhanced diagnostics and
control, and straightforward wiring since communications requires attaching only four
wires. This ensures simple, reliable operation and an accurate installation.

WARNING

Thermostat installation and all components of the control system
shall conform to Class II circuits per the NEC code.

WARNING

To prevent electrical shock and/or equipment damage, disconnect
electric power to system at main fuse or circuit breaker box until
installation is complete.

ATTENTION: MERCURY NOTICE

This product does not contain mercury. However, this product may replace a product
that contains mercury.

Mercury and products containing mercury must not be discarded in household
trash. Do not touch any spilled mercury. Wearing non-absorbent gloves clean up any
spilled mercury and place in a sealed container. For proper disposal of a product
containing mercury or a sealed container of spilled mercury, place it in a suitable
shipping container.

Refer to www.white-rodgers.com for location to send the product containing mercury.

System Fault Codes (Cont.)

Display code Diagnostic Description

81 Return air sensor out of range
82 Supply air sensor out of range
83 Coil Temperature Sensor Fault
84 Outdoor Ambient Temperature Sensor Fault
93 Board Failure

P Compressor Protector Fault
d1 No Shared Data
d3 Insuffi cient Indoor CFM
d4 Memory Card Invalid
d5 Card Hardware Confl ict
d6 Blower Horsepower Confl ict
d7 Blower Manufacturer Confl ict
d8 Old Shared Data

Please refer to equipment instructions for additional fault information.

System Fault Codes

Display code Diagnostic Description

1 Long Run Time
2 System Pressure Trip

3 Short Cycling
4 (L4) Locked Rotor
5 (L5) Open Circuit
6 (L6) Open Start Circuit
7 (L7) Open Run Circuit

9 Low Secondary Voltage

11 Failed ignition
12 Low fl ame sense current
13 Flame lost after established
14 Flame present with gas valve off

21 (L21) Low Pressure Switch Trip

22 Main limit switch open.
23 Auxiliary limit switch open
26 Line Neutral Reversed
27 Check Line Voltage
28 High Line Voltage

29 (L29) High Pressure Switch Trip

30 Fuse Open
33 MRLC Open
44 Low pressure switch closed, inducer off
45 Low pressure switch open, inducer on high speed
46 Low pressure switch open, inducer on low speed
55 High pressure switch closed, inducer off
57 High pressure switch open, inducer on high speed
60 Blower Fault Run
61 Blower Fault No Run
66 RPM out of range (over 1200 RPM)
68 No Blower Communication
77 Servo circuit open
78 Servo control fault
79 No Gas Valve Feedback
80 Low Airfl ow

Table of Contents

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Battery Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Quick Installation Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Installing Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Initial Power Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Thermostat Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Set Current Time and Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Choose the System Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Energy Saving Factory Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Set Up Thermostat Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Using the Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Advanced Installer Confi guration
Menu/Service Information

Entering and Navigating the Advanced Installer

Confi guration Menu/Service Information . . . . . . . . . . . . . . . . . . . . 19

Equipment User Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Thermostat User Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Furnace User Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Air Handler User Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Heat Pump User Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Air Conditioner User Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

. . . . . . . . . . . . . . . . . . . . . . . . 19

Installation Advanced Installer Confi guration Menu

This document provides information for installation of the touchscreen thermostat
only. Installation instructions of the furnace or air handler and outdoor AC
condensing unit or heat pump are provided with each of these devices.

This thermostat is designed exclusively for this Comfort Control2 SystemTM
equipment ONLY.

Battery Location

2 “AA” alkaline batteries are included

2 "AA" Batteries

in the thermostat to keep time during a
power outage. They are also required
for armchair programming.

If “LOW BATTERY” is displayed in the
scrolling area, the batteries are low and
should be replaced with fresh batteries.
For best results use premium brand
alkaline batteries, such as Duracell® or
Energizer®.

To replace batteries, set thermostat SYSTEM touch key to Off, remove thermostat
from wall by grasping the top and bottom of the thermostat and pulling straight
away from the wall. The base will remain on the wall. Install the batteries in the
rear along the top of the thermostat. Reposition the thermostat over the base
plate and gently snap into place.

Wiring Requirements

Each communicating device in the system has a four wire connection labelled (R,
C, 1, 2). Each R, C, 1, and 2 terminals must be wired consistently.

Touchscreen

Thermostat

R

C

1

2

24VAC (Hot)

24VAC

(Common)

Data 1

Data 2

Indoor

Board Terminal

Connections

R

C

1

2

Outdoor

Board Terminal

Connections

R

C

1

2

Air Conditioner User Menus (Cont.)

Fault History (FAULT HIST)

Fault Code Fault Occurred Comments

XXXXXXXXXXXXXXX Days XX Displays up to 6 faults; Days (XX)

indicates how many days ago the fault
occurred

Clear Faults No, Yes

Unit Info

Parameter Indications Comments

Model Number XXXX-XXXXXXXXXXXXXXXX Unit Model Number

Serial Number XXXXXXXXXXXXXXXXXXX Unit Serial Number (not available

if control is replaced)

Software Vers XXXXXX Control Software Version

Cool Setup

Parameters Options Comments

AC Profi le A, B, C, D Selectable Airfl ow Profi les (See AC Installer

Guide)

Cool Air Adj % -10, 0, 10 Selectable Cooling Airfl ow Adjustments

On Demand Dehum On, Off Select Blower Operation based on humidity

Reset All Dfl ts No, Yes Resets the AC to the Factory Default

confi guration by selecting Yes

Outdoor Temp Sens On, Off If Outdoor Ambient Temperature Sensor is Field

installed, turn On. Factory Default is Off

Advanced Installer Confi guration Menu

Installation

Air Conditioner User Menus

Status

Parameter Option Comments

Compressor Off, On Compressor Status

Mode AC, AC1, AC2, Time

Comp Hi Pres SW Closed, Open AC High Pressure Switch Status

Comp Lo Pres SW Closed, Open AC Low Pressure Switch Status

Outdr Temp Sens
(if enabled)

2 Week History (2 WK HIST)

Parameter Indications Comments

2wk Y1 Hrs XXX 2 Week First Stage Cooling Hours of Operation

2wk Y1 Cycles XXXX 2 Week First Stage Cooling Cycles

2wk Y2 Hrs XXX 2 Week Second Stage Cooling Hours Operation

2wk Y2 Cycles XXXX 2 Week Second Stage Cooling Cycles

Life History (LIFE HIST)

Parameter Indications Comments

Total Days Pwrd XXXX Total number of days control has been

Y1 Hrs XXXXXX First Stage Cooling Hours of Operation

Y1 Cycles XXXXXX First Stage Cooling Cycles

Y2 Hrs XXXXXX Second Stage Cooling Hours of Operation

Y2 Cycles XXXXXX Second Stage Cooling Cycles

Delay, Off

XXXF, FLT Outdoor Ambient Temperature Display

System Mode of Operation

(if installed and enabled in setup)
This option will not appear unless the sensor
is enabled

powered

Quick Install Steps

• Determine location of thermostat installation.

• Mount thermostat base to wall.

• Connect wires to thermostat base.

• Remove battery tag to provide battery power to the thermostat.

• Attach thermostat to base.

• Turn on power to system. Allow approximately 1 minute for the system to

confi gure.

• Set the time

• Select thermostat operating options in the Thermostat Options Confi guration

Menu.

• Perform thermostat/system operation checkout.

• Program thermostat or accept factory programming.

• Touch Run Schedule.

Installing thermostat

• Pull the thermostat body off the thermostat base. Forcing or prying thermostat

will cause damage to the unit.

• Place base at installation location and mark mounting hole locations on wall

using base as a template.

• Move base out of the way. Drill mounting holes.

• Attach base snugly to wall using two mounting screws. Levelling is for

appearance only and will not affect thermostat operation.

• Connect wires to terminal block on base.

• Push excess wire into wall and plug hole with a fi re resistant material (such as

fi berglass insulation) to prevent drafts from affecting thermostat operation.

• Remove battery tag to provide battery power to thermostat.

• Carefully line the thermostat up with the base and snap into place.

Initial Power-Up Advanced Installer Confi guration Menu

Power Up

Turn on AC power to the system. The thermostat will automatically identify the
communicating components installed.

Messages at Thermostat

During power up, the thermostat will
scroll the word “SEARCHING” in
the message area, indicating that the
system is looking for components
(Air Handler, Furnace, Heat Pump,
Air Conditioner) on the Climate Talk
network. Once the components are
identifi ed the message display will
indicate the components found.
Confi rmation will be given in the
message area that the equipment
has been found with the message

(equipment) FOUND.

Note: If the thermostat display continuously shows “SEARCHING”, check the

wiring to the thermostat.

Communications Systems

The thermostat will recognize the
system devices that are connected and
the capacities to set the system up to
the operating settings. The system has
additional fl exibility which allows for the
customization of certain parameters.

Heat Pump User Menus (Cont.)

Cool Setup

Parameter Options Comments

AC Profi le A, B, C, D Selectable Airfl ow Profi les (see Heat Pump

Cool Air Adj % -10, 0, 10 Selectable Cooling Airfl ow Adjustments

On Demand
Dehum

Reset All Dfl ts No, Yes Resets the Heat Pump to the Factory

Heat Setup

Parameter Options Comments

HP Profi le A, B, C, D, Selectable Airfl ow Profi les (See Heat Pump

Heat Air Adj % -10, 0, 10 Selectable Heat Pump Airfl ow Adjustments

Dfrost Cmpr Dly 0, 5, Selectable Compressor Delay during

Reset All Dfl ts No, Yes Resets the Heat Pump to the Factory

HP Staging
(Multi-Stage Units
Only)

On, Off Select Blower Operation on based on

On, Off For Multi-Stage Heat Pumps Factory

Installer Guide)

humidity

Default Confi guration by selecting Yes

Installer Guide)

defrost

Default Confi guration by selecting Yes

Default is On. This allows Low/High stages
of capacities. To only allow High capacity in
Heat Pump Mode select Off