User`s guide

ACF60-00 – Installation, User’s and Maintenance Manual
48 Ed. 04/2012
LPG can have corrosive effects. The pipe connections must be done using
materials that resistant to this corrosive action.
The vertical gas pipes must have a siphon and a condensation trap due to the formation
of condensation in the pipes during the colder months. The gas pipes may need to be
thermally insulated to prevent the excessive formation of condensation.
In any case, a shut-off valve must be installed on the gas supply line, so that the
ACF can be excluded in needed.
GAS PRESSURE NATURAL GAS (G20) L.P.G. (G30 / G31)
GAS MAINS SUPPLY between the values: 17 – 25 (mbar) between the values: 25 – 35 (mbar)
Table 21 - Gas supply pressures
The gas consumption of the ACF can be found in the “TECHNICAL SPECIFICATIONS”
section on page 11.
3.5 FILLING OF THE WATER CIRCUIT
Before installation, carefully clean the inside of all the tubing and any other
component used both for the water circuit and for the gas supply line, in order to
remove any residue which could effect the functioning of the chillers.
After all the water, gas and electrical supply connections have been made (contact an
electrician for the electrical connections), with water circuit can then be filled.
Requirements: All the electrical and water connections on the ACF must already
be connected.
The filling of the water circuit must be done respecting the following stages:
Activate the automatic air release valves on the plant;
Fill the water circuit (see Figure 14, page 45), adding monoethylene glycol to purified
water in an amount proportional to the minimum winter temperature of the zone in which
the ACF is installed and according to its specific use (see Table 22, page 49).
Bring the plant to the correct pressure, making sure that the pressure of the water in the
plant is not less than 1 bar and not over 2 bar.
Use of monoethylene glycol (antifreeze)
The ACF60-00 must be installed outside, therefore the water in the water circuit during the
winter may be at risk of freezing.
To avoid this phenomenon, it is important add monoethylene glycol to the water in the
appliance in an amount proportional to the minimum winter temperatures for the zone in