Installation Information
GDH Series Direct Fired Ducted Heater
Page 6 of 16
E
XAMPLE
I
NSTALLATION
For the following example, assume the heater will be outdoor, roof mounted, with supply air from an
existing side discharge evaporative cooler for GDH models.
Inspect equipment to ensure correct model has been delivered. Also check for any possible shipping
damage and/or shortage and report any damage or shortages immediately.
2.1.
Consider the best approach for installing GDH heaters.
a.
Leave dropper duct and flashing in position and move cooler across to make way for heater:
Or
b.
Leave cooler in position and move dropper duct and flash across to make way for heater.
2.2.
Provide adequate support for heater in line with air supply between cooler and ductwork.
2.3.
When using crane to lift heater, ensure an adequately sized rope sling is used. Do not sling around
gas valves or controls.
2.4.
When installing weatherproof heater outside, ensure heater is kept horizontal to prevent rain
entering burner and controls.
2.5.
Fit furnace onto stand, ensure air flow direction corresponds with cooler air flow direction, secure
heater to cooler and secure remaining end to ductwork and seal off.
2.6.
If required, provide any necessary permanent access to appliance as required by regulations.
2.7.
For control wiring provide 240 volt, 50 Hz power supply with appropriate neutral and earth. Mount
remote controls in heated are and wire back to heater.
2.8.
Provide a gas supply to heater of adequate size and pressure. Refer to data pages to determine
pipe sizing.
2.9.
Confirm commissioning gas and/or on-site inspection with gas authority.
2.10.
Carry out start up procedures as detailed in Section 4. Obtain on-site inspection and approval from
gas supply authority.
2.11.
Hand installation over to customer by explaining full operation of the system and the necessity of
regular maintenance and annual inspections as required by some State laws.
