Page 3 - Step 4—Install Zone Dampers
1. Open doors or remove cover to access mounting holes (remove the 2 Zone system cover from the left side first). 2. Mount back plate to wall using screws and wall anchors provided. 3. Level back plate and tighten screws. INSTALL USER INTERFACE 1. Open User Interface rear door (mounting base) to exp...
Page 4 - Fig. 2—Insulated Round Metal Duct Work
3. Properly seal joint using duct tape, mastic, or other approved method. Do not allow mastic to come in contact with actuator. 4. Insulate damper using 1-1/2 in. to 2-in. insulation. (Check your local codes.) NOTE: All zone dampers and duct work must be properly supported according to local codes o...
Page 5 - Fig. 7—Rectangular Fibrous Glass Duct Work; INSULATION
4. Insulate damper using 1-1/2 in. to 2-in. insulation. (Check your local codes.) (See Fig. 8.) Step 5—Install Barometric Bypass Damper NOTE: The barometric bypass damper is a critical part of Comfort Zone II -B System for controlling noise at minimumairflow. A barometric bypass should be installed ...
Page 6 - Step 9—Understanding Sequence of Operation; TEMPERATURE SET POINTS
Carrier’s Comfort Heat system is now supported by Comfort ZoneII -B, with all the features of the Thermidistat™ Control. Whenused with compatible variable-speed furnaces and fan coils,controlled dehumidification in cooling and warm heat pumpheating are provided. Step 9—Understanding Sequence of Oper...
Page 8 - SYSTEM CONFIGURATION; A DIP switch module is oriented with switch 1 at the; Step 1—Equipment Controller Configuration
heat. This acts to prevent the unnecessary use of auxiliary heat. Inaddition, when an outdoor sensor is attached, the system can be setto lock out auxiliary heat for outdoor temperatures above aninstaller selectable value. This will be covered under SystemConfiguration. SYSTEM CONFIGURATION Comfort ...
Page 9 - Fig. 12—DIP Switch Settings
ON—Normal single system (address = 01).OFF—Address selection for second zoning system. Switch 6—Select installer test mode to assist in checking out thesystem. See Starting System.ON—Selects normal operation.OFF—Selects installer test mode. Switch 7—Enables or prevents cooling when outdoor temperatu...
Page 13 - Humidification Description
Step 3—Quick Check of Equipment Operation Either this or the next step (Step 4) may be used for initial startup.This check runs equipment for only 2 minutes on each stage and isadequate to see that each stage comes on properly. For temperaturerise, charge levels, etc. use the longer check, or disabl...
Page 14 - Table 1—Displays of Available Humidify Modes
applications, this is an improvement over using an externalhumidistat, which only supplies humidity when auxiliary heatis on. 2. Fan Humidify Mode—This configuration allows a humidity demand to turn on the fan and the humidifier together, even ifthere is no heat demand. It is particularly useful whe...
Page 15 - Table 2—Displays of Available Dehumidify Modes
3. Cool to Dehumidify Mode—This mode tells the system to operate the compressor, with limits, when there is a dehu-midify demand and there is no cooling demand. The limits arethat the system may overcool zones by up to 3° F., whileattempting to satisfy a dehumidify demand. Within this 3°F.range, the...
Page 17 - QUICK PROGRAMMING OF COMFORT SCHEDULES; Table 3—Outputs vs. Stages; Table 4—User Interface Settings
4. Press HOLD/END key to exit. Select system Mode: 1. Press MODE button to select HEAT or COOL. 2. Press HOLD/END button to turn on HOLD icon. 3. Press UP or DOWN button until the desired temperature is displayed. 4. Press ALL ZONE button to turn on ALL ZONE icon if this desired temperature is neede...
Page 18 - SMART SENSOR OPERATION; Fig. 13—Comfort Zone II — Smart Sensor; CHANGING SET POINT
SMART SENSOR OPERATION NOTE: Refer to Smart Sensor Installation and Start-Up Instructions for proper installation and set-up procedure. The Smart Sensor can control the setting of zone temperature, OUT, HOLD, or OFF. It can also display outdoor temperature and indoorhumidity. Hold Out Set Temp Fig. ...
Page 19 - TROUBLESHOOTING
changing according to the program schedule. Cancelling theHOLD function changes the set points to whatever is in theprogram schedule for that period of the day. OFF FUNCTION At the User Interface: Scrolling the heat set point past its lower limit (40°F), or the coolset point past its upper limit (90...
Page 20 - Table 5—Temperature/Ohm Relationship
(1.) Auxiliary Heat Lockout (System is configured as a heat pump and configuration Option No. 8 is active). (2.) Dual Fuel Setup (DIP switch No. 8 OFF. System is configured as a heat pump with dual fuel). (3.) Cooling Lockout Below 55°F (DIP switch No. 7 OFF. System is configured to disable cooling ...
Page 28 - WIRING DIAGRAM NOTES; optional in selecting an auxiliary heat lockout temperature.; SERVICE TRAINING; • Unit Familiarization
WIRING DIAGRAM NOTES 1. Heat pump must have a high pressure switch for dual fuel applications. 2. Outdoor Air Sensor must be attached for all dual fuel applications. 3. Dip switch setting No. 1 must be OFF (open) for heat pump operation. 4. Dip switch setting No. 2 must be OFF (open) for 2-speed com...