32
RETURN AIR CONNECTIONS
The heater is supplied with 2 return air connecctions one at the rear and one underneath:
a. Return air from direction “A”;
b. Return air from direction “B”;
c. Return air from both direction “A” and “B”.
The heater is supplied with a grille at the rear and a
blank panel underneath, both the grille and panel are
interchangable the fixing points and dimensions of the
return air plenum are detailed below.
A
B
Type A
B N°
of
fixings
1
365 335 4
2
445 415 4
3
625 595 4
4
870 840 4
5
1230 1200 4
6
1470 1440 6
PROTECTION
To prevent any accidental damage or contact with the moving parts of the heater ensure all grilles and panels are
securely in place
PRE COMMISSIONING CHECKS
The following pre-commissioning checks should be
undertaken, having first ensured that the gas and
electrical supplies are turned off.
•
Check that all panels and fasteners are secure and
in place.
•
Check that the heater is mounted safely.
•
Check that the flue is sealed, secured, and
adequately supported.
•
Check that the fan is free to rotate, that the fan
motor is secure and that the guards and fan
assembly are all in place and properly secured
•
Check that the heater is installed so that it is not
tilted and remains square.
•
Check that the outlet duct resistance is compatible
to the data plate .
Once the equipment has been installed, and before it is
started up, check the following:
•
All the safety conditions have been observed
•
The equipment has been suitably positioned
•
That the free area around the machine has been
respected
•
The gas connections have been properly carried out
•
The exhaust and intake pipes have been correctly
installed
•
All the taps for the various circuits are open
•
All the electrical connections have been properly
carried out
The may be fumes and odours the first time
the equipment is started up, caused by the
evaporation of liquid protecting the heat
exchanger in storage; this is normal and will
disappear after a short time of working. It is
advisable to properly ventilate the room.
B
A
51
0
30
32
M6
15
53
9
30
15
15
