INSTALLATION INSTRUCTIONS
HCV & HCVR Evaporative Cooling & Gas Heating
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volumes of 100% fresh air, care must be taken to locate the H.C.V clear of kitchen exhausts, etc.
that may allow odour or fume laden air to be drawn into the unit. The prime requisite for the
correct location of an H.C.V is an unrestricted supply of clean fresh air. Recommended clearance
around unit is 1000mm for access to panels and components. Also important to provide clearance
below for drains and dump valve.
b)
Provide clearance at each side and ends for air flow and servicing, discharge end top and bottom
panels are removable for servicing. 500mm clearance must be provided between front of unit and
dropper duct.
c)
Unit may be mounted directly on a flat roof provided supporting timbers are used lengthwise under
the unit or a prefabricated roof stand is available for pitched roofs. Refer data on room stand
assembly later in manual.
d)
If the unit is installed in a plant room, ensure that sufficient clearance is maintained between the
heating section flue and any combustible material. Refer AGA Installation Code AS 5601.
Flue
a)
Flue design must conform to AGA requirements. Refer AGA installation Code AS 5601.
e)
Where units are installed in plant rooms, straight vertical flues through the roof with no more than
one bend at the appliance are preferred.
f)
Horizontal runs if unavoidable should rise not less than 25mm per meter run with a vertical section
of the flue/s extended through the roof. Refer AGA Installation Code AS 5601 for horizontal to
vertical flue length ratios.
g)
End of flue pipe/s outdoors must be terminated with an AGA approved cowl.
h)
Flue up draft must be confirmed after appliance if fired.
i)
New units are supplied with a short 600mm stub , collar and AGA approved cowl.
Gas Supply
a)
Provided a gas supply pipe of adequate size to the heater. The screwed inlet to the unit stop cock
must not be used as the size required for the gas line. Gas line size will be dependent upon flow
rate required and line length. Refer AGA Installation Code AS 5601 – Note: HCV50 requires gas
hook up to two points.
j)
Maximum inlet gas pressure 3.5 kPa
k)
Install a dirt trap (tee, nipple and cap) at connection to each heater.
l)
Check all gas connections for leaks using soap solution.
m)
Do not overtighten gas valve connection cracked body on inlet side of gas valve will not be covered
by warranty.
Gas Pressures Required (All Units)
NG
LPG
Manufact. / PNG
TLP
Maximum kPa
3.5
3.5
3.5
3.5
Minimum kPa
1.12
2.74
0.67
0.67
Electrical Supply
All electrical connections and wiring must conform to local requirements and AS 3000 Wiring Rules. All
electrical work shall be performed by a registered electrical contractor including:
a)
Mains supply
n)
Thermostat wiring
o)
Selector switch wiring
p)
Lockout light wiring
q)
Remote reset button wiring
