Installation Instructions for Optional Equipment
READ INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO ASSEMBLE,
SERVICE OR OPERATE XETEX HEAT-X-CHANGER UNITS. FAILURE TO COMPLY WITH INSTRUCTIONS
COULD RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE!
SPECIAL WARNING: No untrained person should attempt to
install, maintain, or service XeteX Heat-X-Changer units.
DAMPERS
- Check the damper motors for security and linkage connections if applicable.
- The damper should be unobstructed and operating.
- Damper motors must be wired to operate in accordance with system requirements.
On-Off motors should generally operate to open the damper to the face in
the "ON" position. Modulating motors need to operate in accordance
with the system wiring diagram.
DEFROST SYSTEMS
- Defrost systems need to be checked for proper electrical and mechanical
functions.
Supply Fan Shut-off:
- Thermostat should turn off supply fan on a temperature drop below set
point. Differential temperature setting should be adjusted to about 4 degrees
to assure supply is restarted when this higher temperature is reached.
Supply Face or Face and Bypass Damper:
- Thermostat should be set to close the face dampers on a fall in sensed
temperature.
Defrost plates:
- Traversing defrost plates are not typically operated under positive control
COILS
- Coil piping extends through the outside wall or, if provided, extends
down through the plumbing and electrical chase inside the unit. Piping to
the coil is provided by the mechanical contractor.
FURNACES AND DIRECT FIRED HEATERS
- Follow the Furnace/Direct Fired Heater manufacturer's Installation and
Maintenance Guide supplied.
INDIRECT EVAPORATIVE COOLING UNIT
- Install the make-up water valve and recirculation pump if they are not
provided by the factory. Check spray manifold and pump for proper operation.
WATER WASH
- Connect the water valves and piping to the water wash manifold/nozzle
assembly located in each unit (if not provided by the factory).
- If provided, check the manual on/off ball valve. It should be in the water
line before nozzle/manifold assembly.
- The detergent tank, if provided, must be mounted at the same level as
the control panel in the water wash system.
