Installation
1. Carefully unpack & inspect the pump. Examine it to ensure that no damage has occurred. If damage is observed, notify the rm where the pump
was purchased. They will assist with repair or replacement.
2. Determine which inlet is to be used. If the optional side inlet is to be used, the factory installed cap must be removed, and the loose cap supplied
with the pump must be installed over the top inlet to prevent foreign objects from falling into the reservoir. Use the clamp from the side inlet to se-
cure the top inlet cap. DO NOT REMOVE THE SIDE INLET CAP UNLESS THE SIDE INLET IS TO BE USED!
3. Position the pump so that the inlet chosen is close to and below the drain line. The pump MUST BE LEVEL!
Plumbing Connections
4. Connect a suitable drain line from the evaporator coil drain to the pump’s inlet. Ensure a downward slope of the line in order to provide proper
gravity drainage into the pump.
5. Connect the properly sized copper tubing to the discharge port’s check valve assembly. Do not run piping higher than 80% of the recommended lift
for the pump. For proper drainage of the discharge line, any horizontal run should have a downward slope.
Wiring Connections
6. WARNING! Disconnect electrical power at the power source (fuse box, circuit breaker, etc.) before servicing pump!
7. CAUTION! THE A5X PUMP SERIES MUST BE SUPPLIED BY A DEDICATED 20 AMP SERVICE AND BREAKER TO HANDLE CURRENT
DRAW DURING MOTOR START-UP.
8. CAUTION! All wiring to the pump must conform with local electrical codes. In areas where local codes are non-existent, the National Electrical
Code applies.
9. CAUTION! Make certain that line voltage corresponds to voltage specied on pump motor’s nameplate. For proper installation, connect pump only
to a constant source of power. Connection to an intermittent power source will not allow for proper pump operation
10. Once voltage and power source is veried, connect the green lead to ground, and the two brown leads to either hot or neutral.
11. In the event that electrical compartment connections are removed for pump service, refer to the wiring diagram below or on inside of electrical com-
partment cover to make proper connections.
12. NOTE: RoutingofwiresinsidepumpisCRITICAL!Keepallwiresinsidethepump’selectricalenclosureclearofoatsandswitchactua-
tion arms.
13. CAUTION! Replace pump’s electrical compartment cover & re-install screws.
14. HIGH WATER LEVEL SAFETY SWITCH: This product is supplied with a factory installed auxiliary safety switch. (See Figure 1 for its location in
pump assembly.) This switch is a passive protective device providing protection from the possibility of pump overow due to clogged discharge
lines or pump malfunction. These switches are wired to work as an alarm trigger, but can be changed to act as a circuit breaker depending on the
application requirements.
AS SUPPLIED – Alarm Function - Normally Open Wiring—(Figure 2)
Pump Test
Check for proper pump function.
1. Remove the drain line tubing from the pump inlet.
2. Pour water into the pump’s inlet until the pump turns on.
3. Pump should evacuate water then turn off. It will leave about ¾” of water in the
tank after “pump-out” is complete.
4. Reconnect the drain line tubing to the pump inlet.
Operation
When properly installed, the operation of the HARTELL pump is automatic. Under
most circumstances, the pump requires little maintenance for efcient operation. If a
problem occurs, check the following items or consult with the rm where the pump was
purchased.
WARNING! Disconnect electrical power at the power source (fuse box, circuit breaker,
etc.) before servicing pump!
ITEMS TO CHECK
• Check inlet and outlet piping for blockage or kinks that would inhibit ow
• Make sure oats move freely.
• Make sure the pump impeller casing is not clogged
• Make sure the check valve is not clogged.
Keep this sheet with the pump. It may be valuable if service is needed under the terms of the warranty.
Model # ____________________________________ Installer: ___________________________________
Pump Label Date Code: _______________________ Date of Installation: __________________________
P/N 901382 REV E 4-2012
The auxiliary safety switch is wired in the “normally open” position enabling
use as a trigger to close the circuit powering an external alarm system in the
event that the water inside the reservoir rises to a level where overow of the
pump is imminent.
OPTIONAL – Circuit Breaker Function – Normally Closed Wiring – (Fig-
ure 3)
The auxiliary safety switch is wired in the “normally closed” position and can
act as a circuit breaker to interrupt power to or disable the appliance or equip-
ment that is producing the condensate (heater, air conditioner, humidier, etc.)
!!CAUTION!! This option must not be used if cooling, heating or humidica-
tion requirements are critical.
15. Turn electrical power to pump on.
Figure 1
Figure 2
Figure 3
High Water Level
Safety Switch
