Burner
Natural
Propane
Main
é2.1mm
Amal 180
Pilot
SIT No. 36
SIT No. 19
mbar inches w.g.
8
14.8
20
37
NATURAL
PROPANE
mbar inches w.g.
16
6
37
14.8
Supply Pressure
Burner Pressure
1.8 INJECTOR SIZES -
NATURAL and PROPANE GAS
1.9 GAS PRESSURE
NATURAL and PROPANE GAS
Pressure test point is located behind front facia panel.
An adjustable governor Rc
1
/
2
(
1
/
2
" BSP) is provided
on Natural Gas models.
1.10 BURNER ADJUSTMENTS
1.10.1 Aeration Adjustment - Natural Gas
Burners are fitted with fixed injectors. Aeration
adjustment is set by manufacturer by means of a
screw in burner throat. After setting pressure, flame
cone height should be approximately 12mm.
1.10.2 Low Flame Setting
The gas control is provided with a low flame setting.
Low flame adjustment has been set and sealed by
manufacturer by means of a bypass screw in gas tap
to approximately one third full rate.
SECTION 2 - ASSEMBLY and
COMMISSIONING
2.1 ASSEMBLY
Place unit in position, and level using feet adjusters.
If unit requires to be mounted upon a stand, refer to
details supplied with stand.
Remove any packing material and ensure that
burners are correctly located over injectors.
2.2 CONNECTION TO GAS SUPPLY
The unit is furnished with a compression elbow fitting,
terminating in an R
1
/
2
thread for connecting to mains.
The gas supply piping and connection to unit must be
installed in accordance with the regulations listed on
the cover of this manual.
On Natural Gas appliances, the adjustable governor
must be fitted in supply, being securely fixed in a
position enabling adjustment to be made during
commissioning. DO NOT fit a governor to Propane
models.
A gas isolating cock must be fitted in supply, in a
position readily accessible to operator.
2.3 CONNECTION TO AN ELECTRICITY SUPPLY
Not applicable to these appliances.
2.4 CONNECTION TO A WATER SUPPLY
Not applicable to these appliances.
2.5 PRE-COMMISSIONING CHECK
2.5.1 Setting Gas Pressure (Natural Gas Only)
Connect a suitable pressure gauge to test point
located behind facia panel. Light burners in
accordance with procedure detailed in User
Instructions and set gas pressure as specified in
Section 1.9.
2.5.2 Aeration Adjustment
Check by observing through inspection aperture and
window, that burner cone lengths are in accordance
with Section 1.10.1.
2.5.3 Low Flame Check
Check by observing through inspection aperture and
window, that flame reduces when control is turned to
low flame setting in accordance with Section 1.10.2.
Further observe that flame is stable.
2.5.4 Gas Tightness
After installation, the engineer responsible should
check gas tightness and ensure unit operates
satisfactorily before hading over to user.
2.6 INSTRUCTION TO USER
After installing and commissioning the appliance,
hand the User's Instructions to the user or purchaser
and ensure that the person(s) responsible
understands the instructions for lighting, cleaning
and correct use of the appliance. It is important to
ensure that location of gas isolating cock is made
known to user, and the procedure for its operation in
an emergency be demonstrated.
