Calorex PPT12 - 3.2 Determining Water Flow

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Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Technical Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638160 ISSUE 22d
®
3.2 Determining
Water Flow
The heat pump is fitted with a water flow switch which inhibits the operation
of the heat pump when the water flow is less than the figure shown in the
table below.
Adjust the flow rate until the flow rate is adequate. The display on the
digital thermostat shows “noF” until adequate flow is reached.
PPT8/12 FLOW RATE 4500 L/hour
PPT16 FLOW RATE 7500 L/hour
PPT22 FLOW RATE 9960 L/hour
REMOVE BUNGS
BEFORE INSTALLING
HEAT PUMP
POOL WATER
IN
POOL WATER
OUT
CONDENSATE DRAIN
DIGITAL
THERMOSTAT
MODEL
Machine starts working
when flow rate rises
above L/hour
Machine stops working
if flow rate drops below
L/hour
PPT8 1500 840
PPT12 1500 840
PPT16 2500 2000
PPT22 1920 1500
Flow rates for water pressure switch