Yunca Gas EIB Operations, Maintenance & Warranty Information page 8

CONNECTING THE HEATER TO A GAS SUPPLY.
Burn only the fuel for which the heater is equipped.
The YUNCA ELECTRONIC INBUILT may be shipped from the factory equipped to burn natural gas,
L.P.G. or propane. The data plate affixed to the base of the heater and specifies the gas type that the
heater is factory equipped for. Fuel Conversion Kits are available, contact your YUNCA agents.
Gas connection:
The gas inlet is located behind the hearth fascia panel. The inlet is a female 3/8" BSP access is shown
in the following pages.
A separate gas isolation valve should be installed immediately up stream of the connection to the
appliance.
If the heater is intended to run on natural gas, the supplied in line regulator should also be installed in
the gas line.
WARNING: To stop pipe compounds entering the gas line, do not apply sealing compounds to the first
two threads at the tip of any gas connection. All joints should be tested for leaks before operating the
heater.
GAS PRESSURE REQUIREMENTS
PRESSURE TESTING:
Important Gas Pipe sizing: The supply pipe size should be determined from NZS 5261 to ensure
correct gas supply to the appliance. Incorrect pipe sizing WILL affect the performance of this
appliance.
WARNING: To stop pipe compounds entering the gas line, do not apply sealing compounds to the first
two threads at the tip of any gas connection. All joints should be tested for leaks before operating the
heater.
Gas pressure requirements
Correct gas pressure and the use of a properly sized gas supply line is essential for the safe and efficient
performance of this appliance. The inlet and outlet pressures at the control must be tested on
installation.
Note: Improper gas pressure will affect heater performance, flame Colour or cause pilot malfunction.
Natural Gas:
Minimum inlet pressure 1.25 KPa (5"w.g.)
Maximum inlet pressure 5.0 KPa (20"w.g.) With supplied inline regulator fitted.
Operating pressure
L.P.G. (NZ Only) and Propane
Minimum inlet pressure 2.75 KPa (11"w.g.)
Maximum inlet pressure 3.5 KPa (14"w.g.)
Operating pressure
CAUTION: Do not use this heater if any part has been under water or exposed to moisture causing
corrosion.
A Qualified service technician should inspect the heater and replace any part of the gas system that
has been under water.
16-02-05
1.0 KPa (4"w.g.)
2.5 KPa (10"w.g.)
Page 8 of 19 Operation Instructions for Electronic InBuilt EIB 2002