CAUTION:
• Disconnect electrical power to cooler before installing your purge pump
or servicing cooler.
• Installation must comply with cooler manufacturer's specifi cations and
all applicable building and electrical codes. For safety against electrical
shock, cooler cabinet, blower motor, pump(s) and switch(es) must all be
properly grounded.
INSTALLATION PROCEDURE:
1. Disconnect electricity to evaporative cooler.
2. Unplug existing cooler pump.
3. Place pump screen onto purge pump.
4. Mount purge pump inside cooler. Secure pump to blower housing
with mounting bracket.
5. Install hose adapter into overfl ow pipe. Place proper end of hose
adapter into overfl ow pipe. See markings on hose adapter.
6. Attach 1/2" hose from purge pump to hose adapter. Securely at-
tach hose onto pump. Connect other end of hose onto hose adapter.
Avoid kinking hose — cut hose if deemed necessary.
7. Plug in the purge pump.
Note the specially integrated
plug and receptacle on the
purge pump cordset.
8. Reconnect existing cooler
pump into the special purge
pump receptacle.
9. Connect piping to remove cooler water. Do not allow cooler water
to run onto roof. Connect garden hose, or 3/4" PVC piping from under-
side of cooler drain to an appropriate drain site on the ground. Use
of 45 degree elbows instead of 90 degree elbows is recommended.
This will prevent unsightly roof stains as well as potentially damaging
effects to roof shingles.
10. Reconnect electricity to evaporative cooler.
OPERATING:
Your purge pump automatically removes the water in your cooler once
every 8 hours that the cooler pump is "ON." This periodic draining replaces
the "hard" water that naturally develops in the cooler with clean, fresh wa-
ter in a consistent manner. The result is decreased scale build-up, longer
pad life, less cooler maintenance and lower water usage (compared to a
standard bleed-off system).
TEST BUTTON OPERATION:
• Your purge pump includes a "TEST BUTTON" feature. With electricity
connected to purge pump (cooler pump will be "on"), press "TEST BUT-
TON" one time to initiate a 7 minute purge pump drain cycle. After this
7 minute timeframe, both the 7 minute drain cycle parameter and the 8
hour timer cycle parameter will reset.
• If "TEST BUTTON" is pressed a second time before the 7 minute drain
cycle ends, then this action will stop the purge pump and the previous 8
hour timer cycle data will be restored.
• At any time, both the 7 minute drain cycle parameter and the 8 hour
timer cycle parameter can be reset by pressing the "TEST BUTTON" for
5 seconds.
IMPORTANT:
1. The purge pump drains the water depth to less than 1/2 inch.
2. Use of a low draw or low operating level cooler pump is highly recom-
mended to avoid developing dry pads during the draining cycle. (Use
Dial PowerCool™ and Dial Contractor™ pumps.)
3. During the purge pump draining cycle, both purge and cooler pumps are
"on."
4. If the purge pump drains the cooler reservoir too fast, the drain time
can be extended by installing a pump hose clamp (Dial PN 9282 or PN
9287) to the purge pump extending the time required to drain the water
reservoir and minimize any pad "dry-out" spots that might develop.
PURGE PUMP
Installation and Operating Instructions
Purge Pump
Existing
Piggyback Plug
Cooler Pump
Plug
(USE SAME PLUG-IN PROCEDURE FOR 230V)
PURGE PUMP
CORD AND PLUG
COOLER PUMP
PLUG
2
8
EXISTING
COOLER PUMP
115V Pump
Receptacle
3
Power
Supply
PURGE PUMP AND
PUMP SCREEN
CONTENTS:
• 1 Purge Pump
• 1 Mounting Bracket
• 1 Pump Screen
• 1 Pump Hose (1/2" I.D., 30 inches long)
• 1 Hose Adapter (Purge Pump Hose to Overfl ow Pipe)
Note for Tucson, Arizona Area Installations: Certain building/
electrical codes require the use of a "P-26 Fuse Box," such as
the G.E. Model No. T-U261F rainproof power outlet fuse box,
when wiring a cooler.
When using this fuse box, a fuse rated at 1.6 Amp might be
required for proper operation of the purge pump vs. the smaller
1.25 Amp fuse. These fuses are a type S time delay and must be
used ahead of the cooler pump and purge pump.
LIMITED WARRANTY:
1.
Purge pump is warranted under normal use and recommended
maintenance for 2 years from date of sale to user. In event of de-
fect or failure, replacement is made through your authorized dealer
or retailer.
2.
Reason for replacement, purchase date, and sales receipt must
accompany pump returned for replacement.
3.
Warranty is void if pump has been abused, altered, water dam-
aged or improperly installed.
4.
We do not pay the cost of a service call at the site of installation to
diagnose cause of trouble, or the cost of labor or transportation to
replace a defective pump.
5.
We are not responsible for any incidental or consequential dam-
age resulting from any malfunction unless required to do so by
state law.
DISCONNECT ELECTRICAL
1
POWER TO COOLER
7
PUMP
RECEPTACLE
BLOWER HOUSING
6
5
OVERFLOW PIPE
OPTIONAL
DRAIN CLAMP
PURGE PUMP
MOUNTING BRACKET
4
DISCHARGE HOSE
ADAPTER
STANDARD
3/4" PVC OR
9
GARDEN HOSE
(not included)
Form 15624-0117