Cambridge Air Solutions.
74
M-Series Technical Manual
NORMAL OPERATIONS:
Sequence of Operation:
1. Upon external signal the sump pump will energize
and water will flow to the distribution header and
overthe media pads.
NOTE: For longer media pad life do not cycle the
water flow over the media pads. The pump should run
continuously (Variable air volume or cycling the fan are
acceptable methods of temperature control).
If the pump has to be cycled, a wash down cycle
component can be purchased to prevent the plating of
solids on the media.
2. At the factory pre-set or customer set time, the fill
valve will close and the drain valve will open for 1
hour emptying the sump.
NOTE: This procedure is necessary to prevent algae and
scale formation on the media pads.
MAINTENANCE:
Procedure:
Spring Start-Up
1. Clean sump tank and sump pump.
2. Remove distribution header and clean out distribution
holes that supply water flow to media pads.
3. Inspect all wire connections for discolored and/or
burned wires. Replace where necessary.
4. Inspect media pads and replace per manufacturer’s
recommendations.
5. Follow ‘Initial Start Up’ procedures.
Monthly and Quarterly Maintenance
1. Inspect sump pump and water level. Adjust float
valve if necessary.
2. Check media pads for scaling and adjust bleed valve
as required.
3. Inspect for water carryover and leaks.
4. Inspect air flow making sure no outside air is
bypassing media pads.
Annual Shutdown for Winterizing
1. Disconnect power supply.
2. Shut off manual water make-up valve to unit.
3. Drain sump. Pump removal is not necessary.
4. Clean any scale or debris in sump and sump pump
area.
