Carrier 33CS420-01 Bedienungsanleitung

7-DAY

PROGRAMMABLE

DIGITAL

THERMOSTAT

HEAT

PUMP

Accepts EZ Programmer

Accepts Optional Humidity Module:

Controls Humidification,

Dehumidification and Reheat

Accepts Optional IR Remote Control

3 Configurable Outputs

Control up to 3 Heat &

2 Cool Stages

Adjustable 2nd & 3rd Stage

Timers & Deadbands

Backlit Display & Button

Legends

Aux Heat Indicator

Set Point Limiting

Outdoor Sensor Ready with

High/Low Readouts for the Day

3 Configurable Outputs

Control up to 3 Heat &

2 Cool Stages

Carrier Corporation 04/06

Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage

Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.

INSTALLATION

INSTRUCTIONS

INSTALLATION

INSTRUCTIONS

OPTIONAL

HUMIDITY MODULE

OPTIONAL

HUMIDITY MODULE

Accepts the

COMMERCIALCOMMERCIAL

THERMOSTATTHERMOSTAT

P/NP/N

33CS420-0133CS420-01

AUTO

I2:00

HEAT

COOL

HEAT

COOL

Page i

NOTE: Due to variations in environmental conditions, it is not

always possible to achieve the desired humidification or

dehumidification setpoint.

MISC3 MISC3

This device complies with Part 15 of the FCC Rules. Operation is

subject to the following two conditions: (1) this device may not cause

harmful interference, and (2) this device must accept any interference

received, including interference that may cause undesired operation.

Follow the Installation Instructions before proceeding.

Set the thermostat mode to “OFF” prior to changing

settings in setup or restoring Factory Defaults.

NEVER PUT MORE THAN ONE

JUMPER ON THE SAME MISC

JUMPER BLOCK!

THIS MAY DAMAGE YOUR

THERMOSTAT.

CAUTION

FOR HOME OR OFFICE USE

Tested to Comply

with FCC Standards

Thermostat 33CS420-01

4Z95

CAUTION

Carrier

Preparation

Remove & Replace the

Old Thermostat

Configuring the MISC

Outputs

Sample Wiring

Diagrams

Calibrating the

Thermostat Sensors

Test Operation

TroubleShooting

Page iii

Table of ContentsTable of Contents

Wire Connections

Carrier

Page 1.1

SECTION 1

PreparationPreparation

Assemble tools

Flat Blade

Screwdriver

Wire cutter

& Stripper

Make sure your Heater/Air Conditioner is working

properly before beginning installation of the

thermostat.

Carefully unpack the thermostat. Save the screws,

bracket, and instructions.

Turn off the power to the Heating/Air Conditioning

system at the main fuse panel. Most residential

systems have a separate breaker for disconnecting

power to the furnace.

Proper installation of the thermostat will be

accomplished by following these step by step

instructions. If you are unsure about any of these

steps, call a qualified technician for assistance.

Carrier

Page 2.1

SECTION 2

Remove & Replace the Old ThermostatRemove & Replace the Old Thermostat

Remove the cover of the old thermostat.

If it does not come off easily check for screws.

Loosen the screws holding the thermostat

base or subbase to the wall, and lift away.

Disconnect the wires from the old thermostat.

Tape the ends of the wires as you disconnect

them, and mark them with the letter of the

terminal for easy reconnection to the new

thermostat.

Keep the old thermostat for reference purposes

until your new thermostat is functioning properly.

Carrier

Page 3.1

Section 3 Contents:

Configuring the Jumpers........3.2

Explanation of Jumper

Settings..................................3.3

SECTION 3

Configuring the MISC OutputsConfiguring the MISC Outputs

Carrier

Configuring the JumpersConfiguring the Jumpers

Page 3.2

For additional flexibility, your thermostat has three configurable

outputs. These outputs are designed to have different functions

depending on how the jumpers are set (below).

Each output, labeled MISC1, MISC2, and MISC3 may be set for one

of the four choices available.

In the diagram below, the MISC3 jumper has been set for HUM*

(humidification) operation, the MISC2 jumper has been set for

DEHUM* (dehumidification) operation, and the MISC1 jumper has

been set for Y2 (second stage cooling) operation.

NEVER PUT MORE THAN

ONE JUMPER ON THE SAME

MISC JUMPER BLOCK!

DOING SO MAY DAMAGE

YOUR THERMOSTAT AND

VOID THE WARRANTY.

HUM

DEHUM

MISC3 MISC2 MISC1

(MISC1

ONLY)

CAUTION

MISC3 MISC3

GAS

ELEC

GAS

(FAN)

MISC2

MISC1

RS2

RSGND

MISC3

RS+5

HUM

DEHUM

MISC3 MISC2 MISC1

(MISC1

ONLY)

INSTALL HUMIDITY

MODULE WITH SENSING

ELEMENT OUTWARD

HUM

NO HUM

*The Humidity Module (sold separately) must

be installed to operate a humidification

and/or dehumidification system.

Carrier

Page 3.3

The 3rd Stage of Heat is turned on when:

(A) The 1st and 2nd stages have been on for the time required (steps 23

and 24, page 13.6). It is adjustable from 0-60 minutes and the default

is two minutes.

(B) The temperature from the setpoint is equal to or greater than: the set-

point plus the 1st stage deadband (step #20, 13.5), plus the 2nd stage

deadband (step #21, 13.5) plus the 3rd stage deadband (step #22,

13.5). This 3rd stage deadband is adjustable from 0-10 degrees and

the default is two degrees.

W3 JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to W3, the corresponding MISC screw

terminal on the backplate will control a third stage of heat.

Explanation of Jumper SettingsExplanation of Jumper Settings

And

Heat

Setpoint

Cool

Setpoint

Deadband Deadband DeadbandDeadbandDeadband

db 1 db 1db 2 db 2db 3 (adj. 1-6 )(adj. 0-10 )(adj. 0-10 ) (adj. 0-10 )(adj. 1-6 )

1st Stage

turn on

2nd Stage

turn on

3rd Stage

turn on

1st Stage

turn on

2nd Stage

turn on

Heating

Cooling

TEMPERATURE

DECREASE INCREASE

W3 MULTI-STAGE OPERATION EXPLAINED - SECTION 13 of the Owner’s

Manual

HUMIDIFICATION OPERATION - SECTION 9 of the Owner’s Manual

If your HVAC unit is equipped with a humidification system and the Humidity

Module (sold separately) has been installed, the thermostat will provide power

to the MISC1, MISC2, or MISC3 terminal of the thermostat when the

humidity in the home falls below the humidity setpoint you have chosen.

The value for this setpoint ranges from 0% to 60%. If no humidity is desired or

if a humidification system has not been installed, set the value to OFF.

HUM JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to HUM, the corresponding MISC screw

terminal on the backplate will control a humidification system.

Carrier

Page 3.4

DEHUM JUMPER SETTING

Explanation of Jumper Settings (continued)Explanation of Jumper Settings (continued)

If the jumper for MISC1, MISC2, or MISC3 is set to DEHUM, the corresponding MISC screw

terminal on the backplate will be connected to the dehumidification terminal of a furnace

board.

NOTE: Not all furnaces have a dehumidification terminal.

DEHUMIDIFICATION OPERATION - SECTION 10 of the Owner’s Manual

If your HVAC unit is equipped with a dehumidification system the thermostat will

operate in one of two ways.

1) Normally Closed (NC): The thermostat will de-energize the MISC1, MISC2,

or MISC3 terminal of the thermostat (this MISC terminal is connected to the

DEHUM terminal on your furnace) to allow the fan to run in low speed when

the humidity in the home is above the dehumidify setpoint you have chosen

and there is a call for 1st stage cooling.

2) Normally Open (NO):

The thermostat will energize the MISC1, MISC2, or

MISC3 terminal of the thermostat (this MISC terminal is connected to the

DEHUM terminal on your furnace) to allow the fan to run in low speed when

the humidity in the home is above the dehumidify setpoint you have chosen

and there is a call for 1st stage cooling.

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