Xylem Laing Thermotech E-10 Series User manual

ITT Laing E-10 circulation pumps E10-NCHN2W-19, E10-NCHN2W-26, E10-NCTN2W-19, E10-
NCTN2W-26, E10-NSHN2W-20
ITT Laing E-14 circulation pumps E14-NSTNNN2W
ITT Laing E-10 & E-14 Circulation Pump Installation, Operation and Warranty Manual
(To be read / used in conjunction with E series pump manual)
Unpacking when unpacking the unit, inspect carefully for any damage that may have occurred in transit.
Check for loose, damaged or missing parts. Any problem - contact the supplier purchased through immediately. Do
not attempt to repair or modify in any way or warranty may be void.
Installation
These pumps have been evaluated and authorized for water use only in spa / pool applications. Ensure the power
source is correct depending on which voltage pump you purchased and 60Hz. Ensure installation is in a clean, dry,
weather & humidity protected location with adequate air ventilation. Ambient temperature not to exceed 110
degrees F. Ensure the power cord is run in such a way that any water that may get on it, cannot run down the cord
to the motor. This unit cannot be submerged - ensure it cannot flood. Protect cords from sharp objects, hot
surfaces; avoid kinking or coiling of the cord. Replace damaged cords immediately. Locate pump as close as
possible to the fluid source thus making the suction line as short and direct as possible, using tubing on the suction
that cannot collapse, such as a reinforced type. Support the tubing independently of the pump. Use clamps to
secure and seal the tube to the pump. Laing pumps are liquid lubricated. How they are mounted and water
condition are important. Thoroughly clean and flush the system before installing the pump Plumbing valves,
fittings, etc. should be positioned to avoid leakage onto the pump. Ensure plumbing is designed and installed in
such a way that the pump will fill with water when the plumbing system fills, to avoid air locking and dry running.
Mounting
For installation purposes, the arrows on the side of the pump housing indicate the direction of water flow through
the pump. Ensure the pump and piping is adequately supported. Do not mount the motor above the wet end.
Correct orientation of the pump includes mounting horizontally or vertically with suction facing upward only. The
pump can roll on its foot to allow different angles of discharge alignment. Do not position with discharge port
lower than inlet / suction port. This helps prevent air locking.

Operation
Completely fill the plumbing system before operating the pump. Do not start the pump until the plumbing system
has been filled. Make sure isolation valves are fully open and the pump is flooded with water. Purge air from the
plumbing system prior to operating the pump. This can be achieved by loosening the plumbing connection at the
pump to allow any air present, to escape. These 2 steps are very important. The pump can never be allowed to run
dry as this can severely damage the pump and will void warranty. Operate the pump. Ensure water is pumping
through the plumbing system. Turn off immediately if no water is flowing within 30 seconds. Once running
correctly, recheck after 5 minutes to ensure continued proper operation. It may be necessary to open a discharge
valve, port or fixture to ensure all air is purged. The pump should be running quietly. If gurgling is heard, it may
mean that air is still in the system. Turning the pump on and off several times will generally clear remaining air. If
gurgling noises persist, recheck and purge the system (note that ozone injection can make a gurgling sound at the
injector and not be a pump issue). Dry run protection. Pump motors are fitted with dry run protection to preserve
the MOTOR. If a dry run condition occurs, the motor will stop and restart numerous times in the attempt to purge
air. If this condition remains, the motor will turn off and remain off until the power is interrupted. This does not
guarantee protection of the wetend / rotor bearing as dry running can cause failure NOT covered by warranty. This
dry run motor protection prevents motor failure. A failed rotor due to dry running or chemical / water condition
damage, can be ordered from Australian Spa Parts and replaced rather than a complete pump.
Trouble Shooting
Motor will not start or run: Improper electrical connection, blown fuse or circuit breaker, loose or broken wiring,
foreign object stuck in impeller, motor failure, dry run motor protection has operated. Pump will not prime: leak,
kink or obstruction in suction line, pump is worn, dirty / blocked filter Little or no discharge: Air in pump, suction
blockage, head to high, blockage in pump, pump not running, dirty / blocked filter Noisy operation: Air in pump
housing / dry running, worn rotor bearing, debris in pump.