6
THERMOSTATS
Wires coming from the zone thermostats must be connected to the input terminals in the panel for their
respective zones (Fig. 5b). Use any standard thermostat: "Heat/Cool” and “Fan-Auto-On" sub-base
switching, Programmable/Non-programmable or Auto-changeover. “R” and “C” terminals are available for
all zones from the 24V AC circuit. Staging can be accomplished either with two-stage thermostats or
single-stage thermostats in combination with the built-in Arzel Delay Timer (ADT™). Be sure to set
heating anticipator to the shortest or lowest setting (if adjustable). Heating operation is indicated by red
LEDs (W1 and W2). Compressor operation is indicated by yellow LEDs (Y1 and Y2). Fan operation is
indicated by green LEDs. Heat pump thermostats are required on all zones for heat pump operation.
Locate the thermostats for each zone in a central area within the zone on an inside wall, five
feet from an outside wall and five feet from the floor. Avoid areas near register outlets, lights
and other equipment that could cause a false reading.
EQUIPMENT TYPE SET UP ( FURNACE / HEAT PUMP )
The Arzel AirBoss™ System is factory set for furnace applications. Any time the board PWR switch
is turned ON, the system will automatically check itself and flash the appropriate LED to indicate the
type of equipment it is set up to handle. For Heat Pump use, you MUST turn the PWR switch OFF
and move the “Furnace/Heat Pump” switch to the “Heat Pump” position (Fig. 5c). Turn the PWR switch
back to ON and the panel will respond to Heat Pump demands.
(Fig. 5a )
Arzel Panel
(Fig. 5b)
•
Furnace mode: TDO-2 (DS18 LED) will flash once on power-up. (See p.9, Fig.9b)
•
Heat Pump mode: TDO-1 (DS17 LED) will flash once on power-up. (See p.9, Fig. 9b)
( Arzel Panel )
( Fig. 5c )
Rev. 5/01/01
© copyright 2004 by Arzel Zoning Technology, Inc.
U.S. and Foreign Patents & patents pending.
