RCS TBZ48 Installation Guide

Standard HVAC System
G Fan
W1 Heat Stage 1
Y1 Compressor Stage 1
R 24VAC Return
C 24VAC Common
Thermostat Connection
Y2 Compressor Stage 2
W2 Heat Stage 2
For single transformer systems
connect R wire to either RC or RH
terminal.
For systems with separate heating
& cooling transformers, connect
heating R to RH and cooling R to
RC. NOTE! the RC=RH jumper
must be CUT on the thermostat
board.
Standard Gas/Electric HVAC System Wiring
Thermostat Setup:
Standard Gas/Electric HVAC Systems
For Single Stage Heat/Cool Systems:
Go to the Menu screen by pressing and holding the FAN button for 5 seconds
Press the down arrow to select the SYSTEM menu and press Select.
Set the following:
SYSTEM TYPE: Set to STANDARD
FAN TYPE: Set to GAS for typical gas furnace (fan is controlled by the furnace)
Set to ELECTRIC for electric heat (fan on with heat call)
For Two Stage Heat/Cool Systems:
Go to ADVANCED SYSTEMS SETTINGS menu. From the Setup menu screen, press and hold the Fan and Down arrow buttons
for 5 seconds. Use the Down arrow button to select the following:
2ND STAGE HEAT ENABLE: Enable second stage heating output
If a single stage heating system, leave this set to N
If a 2 stage heating system, set to Y to enable.
2ND STAGE COOL ENABLE: Enable second stage cooling output
If a single stage cooling system, leave this set to N.
If a two stage cooling system, set to Y to enable.
Default Thermostat Setup:
Type: Standard HVAC
Fan: Gas Heat
1 Stage heating
1 Stage cooling
No Setup change required for
this configuration
Thermostat back
Y2 Y1
G
RC
C
RH
W1
W2
/O
Typical thermostat wiring colors.
Caution: verify that original wiring
matches. Colors may be different.
Blue
Black/Brown
Red
White
Orange
Yellow
Green
C wire is not required for
battery operation.
C wire is required for 24VAC
operation.
Internal RC=RH jumper
DCN: 140-02121-06 Page 5

RCS TBZ48 Specifications

General

Brand	RCS
Model	TBZ48
Category	Thermostat
Language	English