INSTRUCTIONS FOR THE INSTALLATION
CWA-100/CWA-175
1 : The supply voltage required for the unit is
208/230 VAC with a 20 A circuit breaker. For 2
pumps, the supply voltage required is 120 VAC 20 A. If your installation requires 3 or 4 pumps,
provide an additional 20 A circuit breaker.
2 : For a proper functioning of the machine, leave a 12’’ (30 cm.) minimum clear space around
the condenser to facilitate air flow.
3 : Install a tube of cooling line at the output of the pump.
4 : Install the return of the same line at the input of the tank (to create a closed circuit). Repeat
step 3 and 4 for each pump.
Important:
Never operate the pumps before filling the tank.
The CWA-100 and CWA-175 are available with a minimum of two pumps. If only one pumps
is necessary for your installation, connect the second pump in a closed circuit and always run it
(24 hours a day) to have a constant agitation in the tank and avoid damaging the compressor.
5 : Remove the unit from the top of the tank (always use the lifting handles to raise the unit) and
pour 7 gallons (7 X 4 liters) of glycol 100% (for an installation with 4 pumps, pour 8 gallons of
glycol) in the tank and add water until just below the overflow.
6 : Before plugging the power cord of the
pumps, ensure that the installation and connections
have been made to required specification. After any adjustments, plug in the pumps.
7 : The level of liquid in the tank will go down until the cooling lines are filled.
8 : Add water until just below the overflow and replace the unit on top of the tank.
9 : Switch on the unit. Note
there is a one minute delay before the unit start-up. For the CWA-
175, n
ote also the 3 stop/start cycles before the full start-up of the unit.
10 : The temperature will slowly drop until 28⁰F (factory setting) on the thermostat display.
