Aiko CTH3-150 Gas Line, Burner Observation, Window, Blower Scroll, Wheel, Motor, Grille optional

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Gas Line	Check for gas leaks. See Page 37, Section 9.
Burner Observation	Make sure it is clean and free of cracks or holes.
Window	Clean and replace as required.
Blower Scroll, Wheel and	Compressed air or a vacuum cleaner may be used to clean dust and dirt.
Motor
Burner Cup and Orifice	Clear of obstructions (even spider webs will cause problems).
	Carefully remove any dust and debris from the burner.
Hot-Surface Igniter	Replace if cracked or broken.
Heat Demand Device:	There should be no exposed wire or damage to the device or wiring.
Thermostat, Zone Sensor,
External Pot or 0-10 Vdc or	See Page 39, Section 10.
4 - 20 mA wiring
Suspension Points	Make sure the heater is hanging securely.
	Look for signs of wear on the chain or ceiling.
	See Page 13, Figure 14.
Decorative and Protective	The grille must be securely attached.
Grille (optional)	Check that the side reflector extensions are installed correctly and secured in
	place if necessary. (Decorative grille only.)
	See Page 28, Section 7.5 and Page 30, Section 7.6
	Make sure shield is installed correctly and secured in place if necessary.
	(Decorative grille only.) See Page 29, Section 7.5.2.
Lower Clearance Shield	The lower shield must be securely attached.
(optional)	Inspect shield support straps and lower clearance shield anchor points.
	See Page 28, Section 7.4.
	Make sure shield is installed correctly and secured in place if necessary.
	See Page 28, Section 7.4.
Silicone Tubing	Ensure tight, secure fit on all pressure fittings at gas valve, pressure switch,
	pressure sensor, burner partition, and blower outlet.
Gas Valve	Verify silicone tubing has a tight secure fit on "vent" fitting.
	Verify that plastic cap on covering pressure regulator adjustment screw is
	secure and has not been tampered with.
	Do not remove plastic regulator cap or attempt to adjust valve pressure
	regulator.
	Verify all wiring connections.
Wall Tag	If wall tag is present, make sure it is legible and accurate. Please contact
	Roberts-Gordon LLC or your ROBERTS GORDON® independent distributor, if
	you need a wall tag. See Page 4, Section 2.1.
Safety Labels	Product safety signs or labels should be replaced by the product user when
	they are no longer legible. Please contact Roberts-Gordon LLC or your ROB-
	ERTS GORDON® independent distributor to obtain replacement signs or
	labels. See Page 2, Figure 1 through Page 3, Figure 2.

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