Plumbing - Calorex aa300 Technical Manual

2.1 PLUMBING

CONDENSATE DRAIN
The condensate driptray in the 'AA300VHF' unit collects the water removed by the dehumidification process.
It is therefore necessary to ensure that the'AA300VHF' unit is placed on a level plinth so that the condensate
can run away and not overflow the edges of the driptray inside the machine.
The 'AA300VHF' has a 3/4" BSPM threaded condensate drain connection. The drain pipe should
run away with adequate fall to waste ie 1/2" per foot minimum and must incorporate a 'U' trap & tun dish.
BOILER PLUMBING
The boiler connections on the machine are 3/4"BSPM. for connecting the boiler water flow and return.
Suitable breakable couplings, isolation, and drain down valves should be installed in the boiler water
flow and return pipes local to the 'AA300VHF' unit.
Refer to the boiler manufacturers instructions before designing the pipework system.
IMPORTANT GENERAL CONDITIONS
1) Do not route water pipes across service access panels or air inlet/outlets.
2) The water circuits to and from the 'AA300VHF' unit should be capable of maintaining the specified
water flow limits required by the machine. See Data sheet section 4.0.
3) All pipework must be adequately supported with allowance for expansion and contraction especially with
regard to the plastic pipework.
4) It is recommended that when installing water systems the last connections to be made should be
adjacent to the 'AA300AVHF' unit to avoid undue stresses on the unit connections.
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