Manuals / Brands / Household Appliance / Thermostat / Honeywell / Household Appliance / Thermostat

Honeywell perfect climate comfort center control system specifications AUX

1 44

Download 44 pages, 1.43 Mb

68-0173—3 8

Table 3. Heat Pump Applications (W8900B).

aAUX controls the auxiliary heat like W2, and allows additional stages of auxiliary heat with outdoor thermostats while maintain-

ing the proper second stage anticipation.

bFor systems without 2nd stage heat, configure W2 to No.

cFor systems requiring separate W1 and Y1 terminals for proper heat pump operation, refer to Fig. 18 and 19.

dReplace existing sensor with C7089A Outdoor Sensor.

W8900B Terminal

Designations Function

Existing Thermostat

Designations

(Standard)

Existing Thermostat

Designations

(Customer Specials)

1 PC8900A Control Panel — —

2 PC8900A Control Panel — —

3 PC8900A Control Panel — —

4 PC8900A Control Panel — —

AUXaStage-3 heat control (strip heat) W3 —

B Heating, changeover valve B —

C 24 Vac transformer common C X,B

CO2Carbon dioxide monitor — —

E Emergency heat relay E K

VNT VNT relay — —

G Fan relay G F

GND Ground — —

L System monitor L L

O Cooling, changeover valve O R

R 24 Vac system transformer R V

S, S1 Remote Air Temperature Sensor — —

T, T1 Discharge Air Temperature Sensor — —

W2bStage-2 heat control (compressor) W2 H2,Y,R4

Y1/W1cCompressor contactor — RS

Y1/W1cCompressor contactor Y M

Y1/W1cStage-1 cool control Y1 C1,M

Y1/W1cStage-1 heat control W1 H1,R3

Y2 Stage-2 cool control Y2 C2

None Clogged filter switch or common connection X X1,X2,C

None Defrost — P

None HSII Control Panel — L,C,H

None LEDs — A,A1,A2,Z,C,L

None LO and HI speed fan relays — R1,R2

None Momentary circuit, changeover — O

None Outdoor thermistor T A

OutdExternal temperature readout, T relay — —

Contents

Main PRODUCT DATA Perfect Climate Comfort Center Control System GENERAL FEATURES Contents ORDERING INFORMATION SPECIFICATIONS Page Fig. 2. Dimensions for 205224A Wall Cover Plate in in. (mm). Fig. 3. Dimensions for C7089A Outdoor Sensor Mounting Clip in in. (mm). Fig. 5. Dimensions for C7189A Remote Indoor Sensor in in. (mm). Fig. 4. Dimensions for C7100A Discharge Air Sensor in in. (mm). FRONT VIEW SIDE VIEW FRONT VIEW (COVER OFF) MERCURY NOTICE INSTALLATION When Installing this Product Mounting the W8900A-C Remote Module Wiring the W8900A-C to the HVAC Equipment Page AUX WIRING DIAGRAMS W8900A,C Hookup Diagrams W8900A,C PC8900 PC8900 W8900A,C Fig. 13. Hookup diagram for heating/cooling intermittent pilot gas burning ignition system. W8900A,C PC8900 Fig. 14. Hookup diagram for 3-wire zone valves in Series 20 heating system with zone controls. W8900A,C PC8900 W8900A,C PC8900 W8900B Hookup Diagrams Fig. 16. Hookup diagram for 2-stage heat/1-stage cool in heat pump system. W8900B PC8900 Fig. 17. Hookup diagram of 3-stage heat/2-stage cool heat pump system. W8900B PC8900 W8900B PC8900 17 68-01733 W8900B PC8900 W8900A,B,C Humidity Control Hookup Diagrams Mounting the PC8900A Control Panel Wiring the PC8900A Mounting the C7189A Remote Sensor Wiring the C7189A Remote Sensor Mounting the C7089A Outdoor Sensor Wiring the C7089A Outdoor Sensor Mounting the C7100A Discharge Air Sensor Wiring the C7100A Discharge Air Sensor INSTALLER SETUP System Options Heat Options Cool Options Fan Options PROGRAMMING PC8900A Setting the Current Day and Time N/A Setting a Customized Program Planning your Program Programming the First Day 1. Clearing Current Program 2. Setting Day, Time, and Setpoints 4. Setting Ventilator M10017 FAN M6210 SAT LEAVE Operating the Comfort Center Control System Changing Current Period Settings 1. Temperature Setpoint 2. Fan Setting a. Press FAN to display the AUTO, ON or CIRC fan setting, as desired. 4. Programming Hold for 1 to 7 Days VENT M6245 M6244 M6243 Canceling Program Settings. Each period can be canceled. M6258 M6257 M6256 CHECKOUT Installer Display of all Segments and Product Codes (Optional) OPERATION Conventional vs. Adaptive Intelligent Recovery Operation Conventional Recovery Adaptive Intelligent Recovery Operation PC8900A Used with W8900A,C Remote Module (Conventional Heat/Cool Applications) PC8900A Used with W8900B Remote Module (Heat Pump Applications) Operation Energy Savings Period Remote Communications Minimum-Off Timing Fan Control Ventilation Control Humidity Control (W8900A and B) Heat Mode CO2 Monitor C7089A Outdoor Temperature Sensor C7100A Discharge Air Temperature Sensor C7189A Remote Indoor Temperature Sensor Keypad Lockout CHECK Key TROUBLESHOOTING See Fig. 41 for troubleshooting procedures. a Fig. 41. Troubleshooting procedures. a Page Page Fig. 41. Troubleshooting procedures (Continued). GLOSSARY