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EvoHeat CS-i Commercial Inverter Series Heat Pump
4.4 Adequate Water Flow
All EVOHEAT heat pumps have a factory preset internal water flow switch. If there is insufficient water flow the
heater will not operate.
It is CRITICAL that there is sufficient water flow to the unit. Incorrect water flow can cause a loss of efficiency and
possible damage to the unit. Optimal water flow rates are listed in the EvoHeat manual. It is imperative that water
flow is kept as close as possible to these flow rates. Correct water flow not only offers optimal heater performance,
but may also prevent possible damage to your heater.
Before connecting the heater to the plumbing, all piping must be thoroughly flushed to ensure no debris can enter
the heater. Failure to remove pipe debris can jam or damage the flow switch and may cause damage to the heater.
When cleaning the pool it is advisable to turn off your heater as restricted water flow may cause the heater to shut
down and indicate low water flow fault (E03 error) or high pressure fault (E01 Error).
IMPORTANT: A Variable speed pump or bypass valve and plumbing MUST be fitted to allow water flow to be
adjusted through the heater. Do not direct connect a water pump with higher flow than required to the heat
pump.
4.5 Rubber Feet
All EvoHeat units are provided with rubber feet which EvoHeat highly recommend being installed. The rubber feet
help reduce vibration of the unit and help provide a space below the heat pump to install the drainage barbs.
4.6 Drainage & Condensation
Whilst the heater is operating, water in the air condenses on the fins of the evaporator. During times of high
humidity, the condensate may be several litres per hour. This may give the impression that the heater is leaking,
however this is a normal function of heat pumps. The heat pump can also automatically activate the reverse cycle
defrost feature when required which increases condensation produced.
Ensure CS series heat pumps are installed level so condensate is not allowed to pool at one end of the condensate
tray!
Removal of condensation can be achieved via the installation of a condensate pan or by plumbing to a waste
water drain. If plumbing, EvoHeat recommend raising the heat pump of the ground approximately 100mm to
allow enough space to connect the condensate lines under the heat pump together, then drain to a wastewater
drain.
4.7 Plumbing
The Swimming Pool Heat Pumps exclusive rated flow titanium heat exchanger requires no special plumbing
arrangements except bypass (please set the flow rate according to the nameplate). The water pressure drop is less
than 10kPa at max.
Flow rate: Since there is no residual heat or flame
Temperatures, the unit does not need copper heat sink
piping. PVC pipe can be run straight into the unit.
Location: Connect the unit in the pool pump discharge
(return) line downstream of all filter and pool pumps, and
upstream of any chlorinators, ozonators or chemical pumps.
The CS-i65 comes supplied with barrel unions for the
Inlet/Outlet connections which accepts 50mm PVC pipe.
The CS-i130 has 100mm PVC flange connections for the Inlet/Outlet connections.
Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet to allow easy draining of unit
for winterizing and to provide easier access should servicing be required.
