OMEGA-VSHPe.F-IOM-2205
9
CHASSIS INSTALL
1.
Leave cardboard shipping cover on the air coil cov-
er in place. Check chassis nameplate to verify
chassis model matches cabinet model for compati-
bility.
2.
If not already done so, remove top cover and check
that no water and refrigeration piping are touching
other tubes or parts.
3.
Align chassis with front of the cabinet and tilt chas-
sis so that the back aligns with the cabinet rails.
4.
Slide chassis into cabinet partially. Check to ensure
wiring harnesses are not being pinched. Adjust the
chassis to ensure it is resting approximately cen-
tered in the rails.
5.
Connect the hoses by hand to the chassis supply
and return connections. Hand tighten, then using a
back
-
up wrench tighten fittings as necessary. En-
sure that the hose supply and return connections
are not reversed and matched to correct risers. Wa-
ter IN and water OUT is stamped on the chassis
sheet metal enclosure.
6.
If riser loop system has been commissioned and
operational open the riser shut
-
off valves. Check for
any signs of water leaks at all water connection
points.
7.
Connect the chassis electrical plugs to the quick
connect mating plugs in the cabinet electrical box.
8.
Slide the chassis into the cabinet. Check to ensure
wiring harnesses and hoses are not being pinched.
Do not push against the air coil surface.
9.
Ensure hoses are not pressed against unit cabinet.
10.
Remove cardboard shipping cover from the air coil.
11.
Install the service cover panel and visually check
foam gasket around service cover panel perimeter
is not damaged and providing an adequate seal.
12.
Insert filter into service cover panel.
13.
Install Return Air Panel into the closet drywall open-
ing if not already done and secure with screws.
7. UNIT START
-
UP
Ensure the building fluid loop system has been cleaned,
flushed, re
-
filled, chemically treated and commissioned
by the water treatment company. Verify that the main
system strainers or mechanical filtration system has
been installed and commissioned.
The chassis must
be at room temperature (68
o
F) prior to start up.
Do not attempt to start unit up when room tempera-
ture is below 60
o
F. Otherwise unit may experience
pressure faults. Repeated pressure trips may dam-
age the unit or cause property damage!
Once the installation of the cabinet and chassis units is
complete the riser shut
-
off valves can be opened. The
riser loop system should be filled and all trapped air
should be bled from the system prior to unit start
-
up.
Water flow failure will cause the unit to trip on the safety
devices. Repeated water flow failures can cause equip-
ment damage.
CHECKLIST
Before energizing the unit ensure all steps are verified in
the following checklist:
___High voltage power supply is correct and in accord-
ance with unit nameplate ratings.
___Unit is electrically grounded and circuit protection is
the correct size.
___Low voltage control wiring is correct as per unit wir-
ing diagram, including ERV bathroom timer.
___Riser loop system is clean, filled, and vented of any
air.
___Chassis unit high and low pressure caps are firmly
secure and in place.
___Chassis matches the cabinet model number.
___Protective cardboard air coil cover is removed and
unit service cover panel and filter are in place.
___There is a proper seal between chassis service cov-
er panel and unit cabinet.
___Riser shut
-
off valves are in the OPEN position.
___Riser loop system has been vented for any air intro-
duced during chassis installation.
___Riser loop water is circulating through all units and at
design conditions.
___Unit condensate drain hose is securely attached to
drain pan and condensate riser.
___All ductwork and ERV connections are complete.
___Clean filters are installed.
