3
FOR SERVICE
Maintenance and fault-finding must be done in accordance with these instructions and the appli-
cable regulations listed on the previous page.
FOR THE PLUMBER
NOTE: GS-20W/26W-AU5 is supplied factory set at 50 °C outlet hot water temperature to comply
with the requirements of . If the water heater is not preset to 50 °C, tempering valve
is required.
GS-20W/26W-AU6 is supplied factory set at 60 °C.
1. When connecting the hot water supply to the
fixtures in the property a minimum of 1.4
metres of pipework must be used between the
outlet of the water heater and the first tap and
outlet. See Diagram to the right.
2. The Hot water line should be insulated with
Ensolex or similar pipe insulation.
3. When the installation is completed the tem-
perature is to be tested at the taps to confirm
the water temperature does not exceed the
required 50°C setting.
•
or outlet is required
to be a minimum of
1.4 metres from the
the water heater.
• Pipe size is nominal 18
mm from hot water
or outlet.
First tap or outlet
2. SPECIFICATIONS
MODEL
Gas Type
Nat. Gas LPG ULPG Nat. Gas LPG ULPG
Gas Input (MJ/h) 160 195
Inlet Pressure
(kPa)
1.13 min./
5.0 max.
2.75 min./
7.0 max.
2.75 min./
7.0 max.
1.13 min./
5.0 max.
2.75 min./
7.0 max.
2.75 min./
7.0 max.
Water Supply
Pressure kPa
150* min.
1200 max.
Height mm 515
Depth mm 170
Width mm 350
Weight kg 15.0 16.0
20 BSP
20 BSP
Electronic
Electrical Supply V 240 AC
NOTES:
*The appliance will operate at reduced performance below 340 kPa.
• For information relating to burner test point pressures and injector sizes, refer to the rating plate located on the
right hand side of the cabinet for each model. (Please refer to p. 7.)
• For information relating to overall dimensions and connection points, refer to the diagrams on p.5.
• Before installing in areas over 1500 m above sea level, contact the manufacturer for instructions.
WARNING
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