Installation Manual
PPT8/12/16/22L/LY
3.2 Determining Water Flow
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK · Tel: +44 (0)1621 857 171
The heat pump is fitted with a water flow switch which inhibits the operation
of the heat pump when the water flow is below 5000l/hr. Adjust the flow rate
until the flow light (green lamp) is illuminated. This lamp indicates that the
water flow through the heat pump is adequate.
FLOW LIGHT
POOL WATER OUT
REMOVE BUNGS
BEFORE INSTALLING
HEAT PUMP
POOL WATER IN
CONDENSATE DRAIN
PPT8/12 FLOW RATE 115 litres per
Page 11
HEAP PUMP SIDE
minute
PPT 16/22 FLOW RATE
R