PART 2 - SECTION I - INSTALLATION INSTRUCTIONS
Raypak recommends a minimum length of vertical flue of three (3) metres to ensure correct draft.
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| AGA Approved Cowl | ||
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| Distance above roof must be | ||
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| as stated in AG601 | ||
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Minimum |
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flue length |
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3 metres |
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| Bolted sleeve | ||
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| Correct draft converter | ||
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| (Indoor hood) | ||
Heater
OUTDOOR INSTALLATIONS.
An outdoor heater must not be installed inside any roofed structure or under eaves, roof overhangs, or pool decks. It should also be at least 1500 mm, in any direction from any window or fresh air opening.
When installing the heater on a raised base, please make sure that the base material is solid and filled in. E.G. If steel mesh decking is used, a suitable plate material must be used to fill in the perforations. This is very important, as any excessive drafts must not be able to enter the unit from directly underneath.
This area must be
Waterfilled in Connections
• On large elevated decks fill in to at least one metre all
Gasaround unit Connection
Elevated Deck
HIGH WIND CONDITIONS
On rare occasions or in areas where high winds frequently occur, it may be necessary to locate the heater a minimum of one (1) metre from high vertical walls, or install a wind break so that the heater is not in direct wind current.
Models 538 to 1852, where the installation may cause "Down draft", Raypak can supply a Wind Deflection Plate (at extra cost), to eliminate constant ignition failures or flame disturbance, the need for which would be determined by an approved Raypak Service Person or Agent.
Wind Deflection Plate
Prevailing
Winds
High Wind Windbreak
In areas of "constant extreme winds" or where a Wind Deflection Plate is not appropriate, it may be necessary to replace the "standard" low profile outdoor hood with a HIGH WIND TOP which would be at extra cost.
The HIGH WIND TOP serves the same function as the low profile outdoor hood and should be installed in accordance with the same clearance requirements.
HIGH WIND TOP
610 mm
GAS SUPPLY
The gas supply pipe must be sized to give sufficient pressure for the correct operation of the heater. The gas line must be fitted with an isolation valve. Consult AG 601 for further details.
Caution: The gas supply must be isolated from the heater during pressure testing of the gas fitting line.
Dissipate test pressure before reconnecting to the heater.
Failure to follow this procedure may result in damage to the gas valve. (Over pressured valves and equipment are not covered by our warranty.)
The heater and it's gas connection must be thoroughly leak tested before placing in operation. Use soapy water and a manometer for leak test.
DO NOT USE NAKED FLAME.
WATER CONNECTIONS AND SYSTEM PIPING
The heater must be installed to the appropriate and/or local codes. For typical piping systems and heater applications it is essential that Raypak be consulted, Raypak heaters do have some special requirements and if you are not familiar with Raypak products we can save you unnecessary inconvenience!
Water pipe connections to heater are:
538 to 1292 - 50 mm copper slip fit or 2" NPT, 1362 to 1922 - 80mm BSP and
2004 to 4224 - 100 mm BSP.
Do not reduce the pipework size and heater water connections without allowing for any friction loss which will occur. Low water flow will cause damage to the heater and system components. Please install pipework using approved fittings and isolating valves that will allow easy disconnection for any future maintenance requirements.
Use a minimum of one (1) metre of copper or stainless steel tube for the final connections to the heater inlet and outlet.
NEVER CONNECT LOW TEMPERATURE PVC PRESSURE PIPE DIRECTLY TO THE HEATER.
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