4
1. Disconnect the power supply to the HVAC system and the zoning system before making any
wiring connections to prevent the danger of electrical shock or equipment damage.
2. Be sure the HVAC manufacturer’s operating specifications are compatible with the Arzel zoning
system.
3. All wiring must comply with applicable electrical codes, ordinances and regulations.
4. Use properly grounded tools, safety glasses and gloves when drilling or cutting sheet-metal ducts,
fiberglass or any hard objects.
1. The Arzel system is designed for indoor use only.
2. You must touch a grounded metal object before handling the control panel to avoid potential loss of
internal programs due to electrostatic discharge.
3. Install in ambient temperature between 40
o
F and 140
o
F in a non-condensing area.
4. Check all system operations after installation is complete.
5. The damper blade gently wipes the inside of the ductwork. Insert a sleeve inside any berglass, or
abraidable ductwork, so the blade does not abrade the materials into the air.
6. Leave these instructions with the installed system for future use.
7. There are both AC and DC terminals on the circuit board. Do not intermingle wires.
GENERAL SYSTEM OPERATION:
When all thermostats are satisfied, the air pump, the HVAC equipment, and the solenoid air valves
are de-energized. Dampers will remain in whatever position they were in when the last thermostat
call was finished. Leaving the dampers open in the last zone served allows the HVAC system to utilize
the residual energy in the system at the end of both the heating and cooling cycles.
The Manual Pump Switch (MPS™) is provided to run the pump continuously. Turning the MPS switch
to ON manually makes the pump relay and the pump starts, driving all dampers open. This creates a
failsafe. If the board fails the dampers can be easily opened and the system run from one thermostat.
INSTALLATION PRECAUTIONS
Read these instructions carefully.
Failure to follow them could damage the Arzel
®
Zoning System
and/or cause a hazardous condition.
WARNING
CAUTION
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