Water Piping; Water Flow Rate; Water By-Pass Kit; Plumbing Diagram - Waterco Electroheat Ultra Manuel D'installation

Water Piping

The below plumbing layout must be followed without exception:
1. pool pump
2. filter
3. pool heat pump
4. chlorinator (when installed).
Rigid PVC piping is recommended with all joints primed and glued with a suitable PVC
adhesive cement. If rigid PVC pipe is not available,a suitable flexible hose of adequate
diameter may be utilised with stainless steel clamps. When the piping installation is complete,
operate the pool pump and check the system for leaks. Then check the filter pressure gauge
to see that excessive pump head pressure is not indicated.

Water Flow Rate

The recommended water flow rate to ensure maximum heat transfer efficiency is between
120 - 300 litres per minute. The optimal flow rate is the mid point of this range. Use the
bypass valve to adjust the flow rate to within the recommended range.

Water By-pass Kit

A bypass kit consisting of three X two way valves must be installed for adjustment of water
flow and ease of service. Waterco offer prefabricated water bypass kits to fit their heat pump
domestic range. Ask your local Waterco sales office for details.

Plumbing Diagram

!
VITAL
HEAT PUMP
Water Out
Water By-pass
Water In
Filter
IMPORTANT
MultiCyclone
Plumbing connections to
the heater must be made
by hand only as it may
break the water Inlet or
Outlet connections.
From Spa
A check valve or a loop MUST be installed between the pool heat pump and
1.
any automatic chlorinator to prevent highly chlorine concentrated water from
flowing back to the pool heat pump when the pool pump is not running.
2. Units which are located below the water level of the swimming pool may require
the pressure switch to be adjusted.
This can be checked by the following method:
i) switch on the water pump and pool heat pump.
ii) while the pool heat pump is running switch "OFF" the water pump.
If the pool heat pump shuts down automatically no further action is
required.
3. Units which are installed more than 1 metre below water level will require a
flocheck valve to be fitted to prevent the heat pump from cycling when no water
flow is detected.
4. For units installed above the pool water level the return water to the pool valve
on the bypass valve set should be closed approximately 15 - 20% to ensure the
heat exchanger is completely full of water to allow the heat transfer to occur.
Pool Heat Pump
Hookup
Vertical Trap
SPA POOL
Check
Valve
To Spa
Chlorinator
or Chlorine
Generator
To Pool
SPA POOL
3 Way Valve
From Pool
I pg 08