Installation
Condensate fitting
WATER
OUT
WATER
IN
HOSE
CONDENSATE ADAPTOR
FIT IN HOLE IN BASE OF UNIT.
APPROXIMATE POSITION
SHOWN
Important
Plumbing installation
- The HPP has water inlet/outlet plastic water connections and can be connected to either 1 1/2" or 50mm
plastic pipe.
- The HPP must be connected after the filter in the return pipe to the pool. If an existing heater is being
retained, then the HPP should be connected between the filter and the other heater. (See recommended
plumbing schematic).
- Suitable breakable couplings should be installed local to the heat pump.
If the heat pump is installed at a lower level than the pool then isolation valves should be fitted.
A drain valve or plug should be fitted to the lower pipe to facilitate draining water in the winter period.
Connections on all HPPs are via either 1 1/2" or 50mm plastic pipe. The pipes need to be glued into the
water in/out connections with a suitable adhesive.
- The condensate drain in the base of the HPP collects condensation from the evaporator fins.
The condensate should run away to waste using the flexible drainage tube provided. To aid drainage the
HPP should be placed on a level plinth so that the condensate water can run away and not overflow the
edges of the drip-tray inside the unit. The position for fitting the condensate adaptor is in the base of the
unit. It will be easier to fit this and the hose BEFORE the HPP heat pump is connected to the water supply.
- When the pipework installation is complete the pool circulation pump should be switched on and the
system tested for leaks. Also check the filter gauge to see that there is not an excessive increase in back
pressure. If everything is then working normally the water circulating system is ready for use.
- The water circuit to and from the unit is to be capable of maintaining, within specified limits, the rate of
flow required by the HPP. (See HPP DATA SHEET on page 24
All pipework must be adequately supported with allowance for expansion or contraction, especially with
plastic pipework.
- It is recommended that when installing water systems, that the last connections to be made in the
system should be breakable connections to avoid any stresses on the water connections at the HPP.
- All pool purifying devices and chemical injection systems must be fitted downstream of the HPP with a
non-return valve to prevent concentrated chemicals back feeding into the heat exchangers.
- The practice of dosing chemicals direct into skimmer basket must not be allowed as this would result in
concentrated corrosive liquids passing over vulnerable metal components.
- Water quality must be maintained not only relating to solids, etc. but for pH between 7.4 - 7.8, and if pool
water is saline at a maximum concentration of 30mg/litre.
- The maximum pressure of water in the HPP circuit should not exceed 3kg/cm (50psi)
Acidity pH
Total Alkalinity, as CaCO3
Total Hardness, as CaCO3
Total Dissolved Solids
Maximum Salt Content
Free Chlorine Range
Free Chlorine Range
Superchlorination
Bromine
Baquacil
Ozone
Maximum Copper Content
Aquamatic Ionic Purifier
pH
7.4 - 7.8
ppm
80 - 120
ppm
150 - 250
ppm
1000
ppm
30000
ppm
1 - 2 Domestic
ppm
3 - 6 Commercial
max
30ppm for 24 hrs
ppm
2 - 5
ppm
25 - 50
ppm
0.9 Max
ppm
1
ppm
2 Max
EN
7