Installation Manual
Gas Fire Heater – Cod. 99962NA – November 2002
7
WATER AND GAS CONNECTION
For the installation respect national standards and safety norms.
GAS CONNECTION
- The pipe must have sufficient section with respect to its length and to necessary flow rate, and must be equipped with all the
safety devices and controls required by the law.
- The unit must be fed by the appropriate type of gas (see plate)
- The gas supply pressure must be within the limits stated on the plate.
- Before installation, it is good practice to blow compressed air in the pipe to remove any machining residue.
- A gas on/off cock must be installed on the internal gas feed pipe upstream of the water heater (looking at the front of the
water heater, the gas feed connection is on the right. See overall dimensions on p. 5).
- Check the internal and external seal of the gas feed system.
- If the unit is not used for an extended time, close the main gas feed cock.
- Conversion of the unit from Nat. Gas to LPG must be performed by qualified personnel only.
WATER CONNECTION
Connect the heater to the water mains and install a water cock upstream (for the heater connection outfeed, see overall
dimensions).
SETTING OF MAXIMUM FLOW RATE
Maximum water flow rate (15 liters/min.) is set by means of key
1(see fig. A). The unit is equipped with a large, stainless steel
water filter (2) to filter any impurities from the water. To clean the
filter, unscrew sleeve (3) and remove.
CONNECTION OF COMBUSTION EXHAUST FLUE PIPE
Observe installation norms according to the national standards
and safety norms. See page no.8 of this manual for external
positioning of flue terminal.
A flue kit is supplied with the unit.
For installation, see overall dimensions at page 9; for the various
type of exhaust pipes, see page 6.
HOT