Manifold Pressure Regulator Adjustment And Pressure Verification Procedure - Calcana CAL Series Installation, Operation, Service, And Parts Manual

CAL-SERIES
25.0
MANIFOLD PRESSURE REGULATOR ADJUSTMENT AND PRESSURE VERIFICATION
PROCEDURE:
INSTALLER MUST VERIFY AND ADJUST, IF NECESSARY, THE MANIFOLD OPERATING PRESSURE OF THIS HEATER
ACCORDING TO THE INSTALLATION MANUAL AND RATING PLATE OF THIS HEATER.
FAILURE TO DO SO WILL VOID ALL WARRANTIES AND MAY CAUSE DAMAGE, INJURY AND/OR DEATH.
IF YOU HAVE ANY QUESTIONS CONCERNING THESE INSTRUCTIONS, CALL CALCANA AT 800-778-6729 BEFORE YOU
VERIFY AND/OR ADJUST THE MANIFOLD FUEL PRESSURE ON THE HEATER. No one should work on or install this heater
unless they are a licensed/qualified and insured contractor trained in the appropriate trade or technical fields
(Gasfitting-HVAC-Electrician) related to the installation and/or service of this heater.
Person(s) who service and/or install this unit accept full liability and responsibility for its operation.
INITIAL STEPS:
The installer must verify that the heater being installed is of the correct fuel type for the available fuel
1)
that is supplied for this installation. This includes any high altitude correction that may be applicable
for your installation. Confirm site has adequate fuel supply to operate all gas fired appliances,
including this/these heater(s), at their maximum rated capacity simultaneously (at the same time).
Make sure gas lines and pressure regulators are of a capacity to deliver the correct line pressure within
the specified range for your fuel type (5" to 14" w.c. for natural gas and 12" to 14" w.c. for propane
or Propane fuel) to the heater's gas line inlet connection, with all gas fired appliances on site operating
at the same time. If you are unable to achieve the stated line pressures during operation, you will not
be able to verify and/or adjust the gas manifold pressure setting on this heater, and the heater will
not operate correctly. If fuel pressure is too low, the heater will not have enough fuel to achieve its
maximum heat level. Alternatively, if the fuel line pressure is too high, the valve can be damaged.
Make sure all gas-fired appliances on site, other than this heater, are on and operating at the same
2)
time. Otherwise, an inaccurate reading of manifold pressure may occur.
Make sure this heater is not operating and is turned off when you start this procedure.
3)
START BY opening the service door and identifying the location of the gas valve and the modulator.
4)
Remove the black plastic cap from the adjustment tower.
TOOLS REQUIRED
-Small Flat Blade Screw Driver
-2 mm (millimeter) allen wrench
-3 mm (millimeter) allen wrench
-Manometer that measures inches of water column (" W.C.)
-Volt Meter capable of reading AC and DC voltage in a range of 0 to at least 30 volts
WARNING
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