Seeley Climate Wizard CW-H10 Installation & Operation Manual page 31

MAINTENANCE INSTRUCTIONS
Other potential problems
Problem Probable Cause
Cooler running in VENT mode
Cooler running in COOL & AUTO
mode with incorrect set point.
Under-Sized Cooler
Under-Sized Ducts
Inadequate
Clogged or Dirty Cores or Chillcel
Cooling
Dirty Inlet Air Filter
Discharge Damper Incorrect Set
No or Low Water supply to Cores.
Inadequate building exhaust
Excessive
Reduce Supercool/Chillcel usage
Humidity
(CW-H15S, H15S Plus only)
Fan out of balance
Noisy
Cooler
Under-Sized Ducts/Grilles
Cooler Fault
No Power to Cooler
Cooler Fails
Low Voltage to Cooler
to Start/Not
Running Wall Control in AUTO or AUTO TIMER
MODE
Cooler PLC Control wrong setting
Continuous
Water Management System not
overflow of
functioning.
water.
New cooler core.
Cooler located near source of
unpleasant odour.
Unpleasant
odour.
Algae in reservoir water.
Cores remain wet after shut down.
Heavy core deposits.
Excessive
Plenum pressures too high.
water
carryover
Core seals/spreaders moved during
in exhaust
transport.
airstream
Suggested Remedy
Turn to COOL mode.
Adjust Wall Control Set Point
Move Wall Control to more appropriate location.
Discuss with Building Manager
Clean or Replace
Complete setting the Supply Air Discharge Damper on "Setting the Air
Discharge Damper" on page 21
Clean pumps
Check pump hoses not blocked.
Open windows and doors
Discuss with Building Manager
Adjust BMS program.
Clean fan blades
Discuss with Building Manager
Check Fault Code Log on Wall Control
Check Fault Code Log on PLC
Check Circuit Breaker
Consult with Building Manager.
Adjust set point and/or timer settings
Switch to MANUAL mode to check fan operation.
Set to W/C or BMS as required
Check drain valve opens during manual drain.
Check drain pipework not blocked.
Check solenoid valve not stuck open.
Clean water management probe.
Drain reservoir, refill.
Remove source of odour or relocate cooler.
Drain reservoir, clean thoroughly with strong cleansing agent, refill.
Run fan on "vent" for 3 hours after cooling cycle to dry cores out.
Replace cores.
Complete the "Setting the Supply Air Discharge Damper" procedure on
"Setting the Air Discharge Damper" on page 21.
Check spreader assemblies securely clamped to top of cores and gaps
between cores covered up. Check core doors correctly sealing against sides
of cores.
SEELEY INTERNATIONAL - INSTALLATION MANUAL 859749-A |
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