Heat pumps AIR / WATER
Operation manual
6
2.2.1
System modifications
Before you change the settings of the control computer, first find out what these
changes mean!
Do not make design changes that could affect the safe operation of the heat
pump!
Only authorised technicians may make modifications to the following components:
•
Heat pump unit
•
Refrigerant and water piping, power supply
2.3
Damage protection
Never insert foreign objects into the external unit of the heat pump! The
heat pump operates in intermittent automatic operation, the fan operates
at high speed and may be pose risk of injury.
2.3.1
Water quality and volume
All water (including domestic hot water) must meet the parameters for drinking water according
to ČSN 252/2004 Coll., however, in addition, the maximum total hardness must be less than
1.25 mmol/l, the chloride content below 85 mg/l and the pH in the range of 6.8 to 8.0.
Model
PRO-N
PRO-R
Volume of water in the heat pump
[l]
1.45
2.7
Table 1 Volume of water in the equipment
2.3.2
Stainless steel water tanks
The Acond heating system can be fitted with a stainless steel container designed for
accumulation of domestic hot water or a stainless steel hot water storage tank (hereinafter
referred to as the containers). Although these are stainless steel containers, they are not
maintenance-free! Instructions for installation and maintenance of the vessels are given in the