Specifications

Stellar Service Instructions REV: D
Date of Issue: 14/09/2007
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
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GAS TYPE CONVERSION PROCEDURE
NOTE: Stellar is approved for Natural and LP gas types only. Conversions to butane or towns gas
are illegal.
For warehouse gas type conversions the burner operation and gas tightness testing must be
completed by dry firing the water heater or fully assembled burner/gas control assembly. Do NOT
leave the main burner on for more than 30 seconds if dry firing. Where gas is unavailable for testing
gas type conversions must NOT be conducted.
1. Isolate gas supply to the water heater and remove the access cover
2. Disconnect gas supply pipe and remove the union or elbow from the gas control.
3. Disconnect the following from the gas control -
a. Piezo igniter lead. b. Pilot feed pipe.
c. Thermocouple. d. Burner feed pipe.
5. Remove the holding screw from the burner mounting bracket.
6. Remove the burner assembly.
7. Remove the gas control top cover.
8. Remove the gas control from the sheath by releasing the spring clip.
9. Change pilot injector to suit gas type. Ensure gas tight joints.
10. Change burner feed pipe and main burner injector to suit gas type. Ensure gas tight joints.
NOTE: The burner-connecting pipe must be changed from a fully rounded type suitable for NG to
partially flattened type when converting to LPG. The reverse applies when converting from LPG to NG.
11. Refit burner assembly ensuring joints are gas tight.
12. Fit replacement gas control and lock into place on the sheath.
13. Reconnect the following to the gas control –
a. Piezo igniter lead. b. Pilot feed pipe.
c. Thermocouple. d. Burner feed pipe.
14. Reconnect and restore the gas supply. Ensure gas tight joint.
15. Light pilot. Ensure lighting instructions, provided on the access door, are carefully followed.
16. Test operation of main burner and test for gas leaks using soapy water solution.
17. Check flame quality and adjust aeration shutter if necessary.
18. Change rating label details and fit new gas type labels.
19. Refit access cover.
GAS CONVERSION REPLACEMENT PARTS LIST
COMPONENT PART NUMBER COMPONENT
NATURAL GAS LP GAS
Gas Control 079421 079424
Burner Feed Pipe 070801 070800
Size (mm) 2.90 1.80
Main Burner Injector
Part Number 073369 073371
Size (mm) 0.27 0.18
Pilot Injector
Part Number 890181 890197
Aeration Shutter Opening Fully Open Fully Open
Test Point Pressure (kPa) 1.0 2.75
Gas Approval Label 121901 121901
Gas Type Label 121802 121805
Maximum Gas Supply Pressure (kPa) 3.5 3.5
Minimum Gas Supply Pressure (kPa) 1.13 2.75
Hourly Gas Consumption MJ 42 42