5
INSTALLATION PRECAUTIONS
Read these instructions carefully.
Failure to follow them could damage the Arzel
®
Zoning System
and/or cause a hazardous condition.
GENERAL SYSTEM OPERATION:
A call from any zone thermostat will initiate HVAC equipment operatio
n and
position the solenoid air valve to
open the damper(s) for its zone. The mini pump is energized to automatically activate the dampers, either
open or closed, as required. Vacuum opens the dampers and pressure closes the dampers. When a call is
satisfied,
dampers are held in place for 30 seconds after compressor only operations or two minutes after
auxiliary or backup heat operations. This will allow the residual conditioned air to be delivered into last zone
satisfied. The adjustable
Secondary Purge Time
(0 to 180 seconds) will continue to operate the pump to open
all the zone dampers for a
S
of
t S
tart on the next cycle.
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
WARNING
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 fiberglass, o
r
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.
8.
The purpose of the LAT (
L
eaving
A
ir
T
emperature) control is to function as an “operating limit”. When set
per the instructions it will add additional
capacity control and prevent the equipment from operating outside
the OEM’s speci ications.
CAUTION
