Load Shedding (CDC)
Operating Instructions
Safety Instructions
Auxiliary controls on your Zoneline.
This feature is active only if the unit is in
CDC mode. When this switch is enabled (UP), the indoor fan can be turned ON or OFF with the unit controls.
LOAD SHEDDING (CDC)
Freeze Sentinel
Care and Cleaning
When this switch is enabled (UP), it turns OFF the freeze sentinel protection feature. With the switch disabled (DOWN), the freeze sentinel is activated which automatically provides heat without user interface. This helps to prevent plumbing damage by turning the heater and indoor fan ON at 41 F and OFF at 46F.
FREEZE Sen (Freeze Sentinel)
Constant ON Fan
Troubleshooting Tips
When this switch is enabled (UP), it allows the indoor fan to run continuously, at high speed, even if the unit is in the STOP position.
CONST FAN (Constant
Occupancy Sensor
Customer Service
When this switch is enabled (UP), it allows the unit to utilize an infrared motion sensor and a door switch for occupancy detection. This feature allows an energy management system to be installed and operated in conjunction with
(Occupancy Sensor)
Temperature Limiting
Temperature limiting can reduce energy costs by limiting the lowest temperature that can be set for cooling and the highest temperature that can be set for heating. Temperature limiting is controlled by switches 16 on the second block
Temperature limiting during HEAT mode
(all temperatures shown in F)
Minimum Maximum
Care and Cleaning
Temperature limiting during COOL mode
(all temperatures shown in F)
Minimum Maximum
TL1 (H) (Temp. Limit 1Heat)
TL2 (H) (Temp. Limit 2Heat)
TL3 (H) (Temp. Limit 3Heat)
Operating Instructions
TL1 (C) (Temp. Limit 1Cool)
TL2 (C) (Temp. Limit 2Cool)
TL3 (C) (Temp. Limit 3Cool) of auxiliary controls. The first three switches are used to select the cooling limits. The next three switches are used to control the heating limits.
This feature is not available with the Remote
ThermostatClass 2.
Safety Instructions
Heat Boost
Troubleshooting Tips
When this switch is enabled (UP) and outdoor temperatures are between 25 F and 46 F, heat pump only operation is locked out. This setting is used to provide supplementary heat to the heat pump operation in conditions where the heat pump only operation is not sufficient to maintain a consistent, comfortable room temperature to the consumer.
BOOST (Heat Boost Operation)
Diagnostics CheckFor Technicians Use Only
DIAGNOS (Diagnostic Check)
Customer Service
When this switch is enabled (UP), the unit will go through an operations check of all components, which takes about 3 minutes (176 seconds).
This diagnostic tool is intended for use by a qualified technician.
Safety Instructions
Auxiliary controls on your Zoneline.
Auxiliary ControlsTerminal Connections
The auxiliary controls are located behind the room cabinet below the control panel. the room cabinet. See the
To Remove the Room Cabinet section.
Operating Instructions the screws from the lower panel front cover and lift the panel off. all desired settings have been made, replace the panel and room cabinet by reversing the above steps.
The owner is responsible for making all connections and setting the appropriate dip switches.
Care and Cleaning
Insert the building hook-up wires into the bottom of the terminal and tighten screw securely to make the desired connections.
Remove screws and panel to access terminal connections
Improper wiring may damage the Zoneline electronics. No common busing is permitted.
Damage or erratic operation may result.
A separate wire pair must be run from each separate controlling switch to each individual Zoneline.
Common - Ground
White - Heater
Yellow - Compressor
Black - Solenoid
Green - High Speed Fan
Green - Low Speed Fan
Red - 24 V AC only
Troubleshooting Tips
Motion Sensor
Door Sensor
External Fan
Central Desk Control
Motion Sensor (Obtained locally)
When connected, the wall mounted motion sensor will detect motion in the room and automatically turn the unit ON or OFF.
Customer Service
The door and motion sensors work together to automatically turn the unit ON or OFF.
Motion Sensor
Door Sensor (Obtained locally)
When connected, the door sensor will detect when the door in the room was opened or closed. This feature must be used in conjunction with the motion sensor.
The door and motion sensors work together to automatically turn the unit ON or OFF.
Safety Instructions
Door Sensor
Operating Instructions
External Fan (Obtained locally)
When connected, an auxiliary or external fan can be controlled with the indoor fan motor on the Zoneline. Connections provide 24 V AC to energize a remote relay, turning on the external fan.
External Fan
Central Desk Control
Care and Cleaning
When connected, the unit can be turned ON or OFF with a switch located at the Central
Control Panel. A separate wire pair must be run from each separate controlling switch to each individual Zoneline.
Central Desk Control
Remote Thermostat
NOTE: The number 4 dip switch must be in the enabled (UP) position to activate the remote
