Calorex Pro-Pac 45 - 3. PLUMBING

The Calorex pool heat pump must be connected aer e filter in e
return pipe to e pool. If an existing heater is being retained, en e
Calorex should be connected between e filter and e oer heater.
(See Figures 3 & 4).
1. Calorex heat pumps have water inlet/outlet connections as follows:
2. Suitable breakable couplings should be installed local to heat pump.
3. If heat pump installed at lower level an pool water en isolation valves
should be fitted.
4. Drain valve or plug should be fitted to lower pipe to facilitate drain down
in winter period.
5. The condensation from e evaporator fins drains away rough holes in
e base of e unit. If desired, an optional factory fitted driptray wi 1½"
sink fitting can be fitted to allow e condensate to drain via 1½" domestic
waste piping. In is case it is necessary to ensure at e Calorex Heat
Pump is placed on a level plin so at e condensate can run away
wi adequate fall to waste ie ½" per foot minimum. A U trap should also
be incorporated into e pipework.
6. When e pipework installation is complete e pool pump should
be switched on and e system tested for leaks. Also check e filter
gauge to see at ere is not an excessive increase in back pressure. If
everying is en working normally e water circulating system is ready
to use.
7. Water circuit to and from unit to be capable of maintaining wiin specified
limits e rate of flow required by heat pump (see data sheet).
8. All pipework must be adequately supported wi allowance for
expansion/contraction especially wi plastic pipework.
9. It is recommended at when installing water system e last connections
to be made in e system should be e breakable couplings to avoid any
stresses on to e unit connections.
CORRECT DRAINAGE
FOR CONDENSATE
ELBOW
'U' TRAP
SUPPLIED BY
CONTRACTOR
ADEQUATE FALL

MODEL
Water in/out
connection size
MODEL
Water in/out
connection size
- - Pro-Pac PPT30M/MY 2" UNION SOCKET
Pro-Pac 45 1½ BSPM Pro-Pac PPT45M/MY 2" UNION SOCKET
Pro-Pac 70 1½ BSPM Pro-Pac PPT70M/MY 3" BSPM
Pro-Pac 90 1½ BSPM Pro-Pac PPT90M/MY 3" BSPM
Pro-Pac 140 2" BSPM Pro-Pac PPT140M/MY 4" BSPM
3. PLUMBING
8
SD566252 ISSUE 51
PR0-PAC SYSTEM OWNER INSTALLATION MANUAL