Trane WCVS 12H, Installation Operation & Maintenance

Page: 14 / 32

TRANE ®
Operation / Start-Up
10
General Recommendations
Cooling Towers
Cooling tower controls affect the unit
cycle rates; 10-15 degree
0
F (5.5-8.5
0
C)
swings in condenser water
temperature may cause excessive
compressor, water valve and unit
cycling. Be sure the tower controls are
set to minimize compressor/ unit
cycling.
Duct Connect
Air duct shoud be installed in
accordance with the standards of the
National Fire Protection Association for
the
“ Installation of Air Conditioning and
Ventilating Systems other than
Residence Type (NFPA 90A) and
Residence Type Warm Air Heating and
Air Conditioning Systems (NFPA 90B)
or as perapplicable local codes.
Make duct connections to the unit with
a flexible material such as heavy
canvas. If a fire hazard exists, the
recommended material is flexweave
1000, type FW-30 or equivalent.
Refer to Fan/ Duct layout (next page)
for recommended correct ductwork
installation.
Where proper duct turns are not
possible consider discharge into a
plenum with take-offs made from that
plenum.
Figure 3-Typical Manifolded Circuit
WARNING: Please ensure no
electrical power is supplied to the fan
motor when installing ductwork.
Failure to do so may result in injury
or death from entanglement in
moving fan wheel or electrical shock.