Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK · Tel: +44 (0)1621 857 171
Installation Manual
AW629/829AL
Page 8
R
a) Calorex Heat Pumps have water inlet/outlet connections as follows:
All models have 1½” BSP parallel, male threads.
b) The heat pump is supplied with bungs fitted in the water connection
fittings. These need to be removed before the heat pump is installed. See
section 3.2.
c) The Calorex Heat Pump must be connected after the filter in the return
pipe to the pool. If an existing heater is being retained, then the Calorex
Heat Pump should be connected between the filter and the other heater.
(See section 3.1).
d) Suitable breakable couplings should be installed local to the heat pump.
e) If the heat pump is installed at a lower level than the pool then isolation
valves should be fitted.
f) A drain valve or plug should be fitted to the lower pipe to facilitate drain
down in the winter period.
g) Connections on all models are by BSP parallel male threaded fittings.
These should be hand tightened only, otherwise damage may result to the
threads of the plastic fittings.
h) The condensate drain at the base of the unit collects condensation from
the evaporator fins. This should run away to waste via ¾” domestic waste
piping. It is therefore necessary to ensure that the Calorex Heat Pump is
placed on a level plinth so that the condensate water can run away with
adequate fall to waste i.e. ½” per foot minimum and must incorporate a “u”
trap as to not overflow the edges of the drip tray inside the heat pump. (See
below).
THIS TYPE OF
INSTALLATION
SHOULD BE AVOIDED
INCORRECT DRAINAGE
FOR CONDENSATE
CORRECT DRAINAGE
FOR CONDENSATE
ELBOW
'U' TRAP
ADEQUATE FALL
3.0 Plumbing
