Page 9
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
i) When the pipework installation is complete the pool 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.
j) Water circuit to and from the unit is to be capable of maintaining within
specified limits the rate of flow required by the heat pump. (See section 9).
k) All pipework must be adequately supported with allowance expansion/
contraction especially with plastic pipework.
l) It is recommended that when installing water systems the last
connections to be made in the system should be breakable connections
to avoid any stresses on the unit connections.
IMPORTANT
1. All Pool Purifying Devices and Chemical Injection Systems to be fitted
down stream of the heat pump (see section 3.1) unless installation is as
per filter dosing. This includes the practice of dosing chemicals direct into
skimmer basket, which results in concentrated corrosive liquids passing
over vulnerable metal components.
2. Water quality must be maintained as follows:
3. Maximum pressure of water in heat pump circuit should not exceed
2.5bar for PPT8/12 (35 psi) and 3.5bar for PPT16/22 (50 psi).
Acidity pH
pH
7.2 - 7.8
Total Alkalinity, as CaCO
3
ppm
80 - 120
Total Hardness, as CaCO
3
ppm
150 - 250
Total Dissolved Solids
ppm
1000 Max
Maximum Salt Content
ppm
35000 Max
Free Chlorine Range
ppm
1 - 2 Domestic
Free Chlorine Range
ppm
3 - 6 Commercial
Superchlorination
max
30ppm for 24 hrs
Bromine
ppm
2 - 5
Baquacil
ppm
25 - 50
Ozone
ppm
0.9 Max
Maximum Copper Content
ppm
1
Aquamatic Ionic Purifier
ppm
2 Max
