Installation Information
GDH Series Direct Fired Ducted Heater
Page 5 of 16
Installation Information
The following recommendations are not intended to supplant or take precedence over any official
regulations, national or local, concerning the installation of the heater. Attention is drawn to regulations
concerning fire, gas, water and electrical installation to Australian and local codes practice.
B
ASIC
I
NSTALLATION
Consult local building codes for special requirements e.g. gas supply, electrical supply, building computation.
1.1.
Consult “Australian Gas Association Code for Installation of Gas Burning Appliances and/or
Equipment” (AG 5601) regarding the installation.
1.2.
Notify local gas supply authority of you intention to install the direct fired heater and provide the
following details:
1.2.1.
Burner data
1.2.2.
Purge and critical time calculations.
1.2.3.
Wiring diagram.
1.2.4.
Valve train layout.
1.3.
The heater should be installed by approved personnel only.
1.4.
Ensure heater receives only fresh air from the source of supply. This type of heater must not have
any return air passing through the burner.
1.5.
Like any total fresh air system, adequate relief must be provided, generally at the rate of 1 square
metre per 1000 litres per second of air supply. Should mechanical exhaust be the only form of
relief, exhaust system and heater air supply must be electrically interlocked.
1.6.
Provide at least 600mm clearance at the front and rear of the heater for service access.
1.7.
Should furnace be located in a plantroom ensure gas pressure regulator installation complies with
venting requirements.
1.8.
Should ductwork on the discharge (leaving) end of the GDH heater be insulated, ensure insulation is
manufactured from non-combustible materials.
1.9.
When adding the heater to existing registers and/or box diffuser is constructed from a material
capable of withstanding temperatures in the order or 80-90°C.
1.10.
Ensure fresh air intake is clear of any flues, exhaust outlets, vent pipes etc.
