Raypak Technical Data - Lpg, FAN SPEED rpmTABLE, Model, XPak85, 5,700, 1,900, 3,700, XPak120

TECHNICAL DATA - LPG

Gas pressure		XPak 85	XPak 120
Input - (0 - 2000 ft / 0 - 610 m)	Btu/hr	25,600 - 87,000	27,300 - 119,500
	kW	7.5 - 25.5	8.0 - 35.0
Input - (2000 - 4500 ft / 610 - 1375 m)	Btu/hr	25,600 - 82,900	27,300 - 114,300
	kW	7.5 - 24.3	8.0 - 33.5
Gas supply pressure LPG	in w. c.	11	11
	kPa	2.75	2.75
Min. gas supply pressure LPG	in w. c.	8	8
	kPa	1.99	1.99
Max. gas supply pressure LPG	in w. c.	13	13
	kPa	3.24	3.24
Burner pressure (max-min)	in w. c.	1.92-0.24	2.00-0.16
	kPa	0.48-0.06	0.50-0.04
Rate
Gas Rate max LPG	lbs/hr	4.02	5.55
	kg/hr	1.82	2.52
Gas Rate min LPG	lbs/hr	1.20	1.28
	kg/hr	0.54	0.58
Emissions
CO2 setting	%	10.0%	10.0%
NOx @ max	ppm	< 20	< 20
NOx @ min	ppm	< 15	< 20
CO @ max without air	ppm	< 200	< 200
CO @ min without air	ppm	< 40	< 35
Injector size
Injector LPG (E) - black coated	Ø	0.15 inch (3.9 mm)	0.19 inch (5.0 mm)

HTG		CO	IGN
TMR	MIN	MAX

Fig. 2

Fig. 3

B (flue)

A (air)

BOILER FAN SPEEDS

The boiler fan speeds require to be checked and/or adjusted prior to making any adjustments to the gas valve or if the main PCB has been replaced.

ATTENTION

Gas type and boiler fan speed (output) must be set according to the specific appliance specification. Raypak accepts no responsibility if the gas type and/or fan speed is not correctly adjusted according to the respective specification as detailed on the boiler data badge.

ADJUSTING GAS PRESSURE

The gas pressure can not be adjusted as the boiler is equipped with a pneumatic gas valve.

CHECKING/ADJUSTING THE APPLIANCE FAN SPEEDS Move the selector switch to the OFF position and remove the 3-selector knobs.

ABSOLUTE MAX FAN SPEED

Locate the MAX trim pot (Fig. 2) and gently adjust clockwise or counter clockwise to achieve the correct fan speed (see table below).

NOTE

ThedisplayshowsthefanRPMinmultiplesof1000,i.e. 2.5=2500RPM.

ABSOLUTE MIN FAN SPEED

Locate the MIN trim pot (Fig. 2) and gently adjust clockwise or counter clockwise to achieve the correct fan speed (see table below).

NOTE

The display shows the fan RPM in multiples of 1000, i.e. 2.5 = 2500RPM.

IGNITION FAN SPEED ATTENTION

Do this operation only after the adjusting of absolute max and min fan speed.

Locate the IGN trim pot (Fig. 2) and gently adjust clockwise or counter clockwise to achieve the correct fan speed (see table below).

NOTE

The display shows the fan RPM in multiples of 1000, i.e. 2.5 = 2500RPM.

HEATING FAN SPEED

Locate the HTG trim pot (Fig. 2) and gently adjust clockwise or counter clockwise to achieve the correct fan speed (see table below).

NOTE

The display shows the fan RPM in multiples of 1000, i.e. 2.5 = 2500RPM.

FAN SPEED (rpm)TABLE

MODEL	MAX	MIN	HTG	IGN
XPak85	5,700	1,900	5,700	3,700
XPak120	5,400	1,400	5,400	3,700

ADJUSTING THE GAS VALVE

THE GAS VALVE MUST BE SET-UP OR ADJUSTED WITH THE AID OF A PROPERLY CALIBRATED FLUE GAS ANALYZER.

CHECKING THE CO2 AND ADJUSTING THE GAS VALVE THE GAS VALVE MUST BE SET-UP OR ADJUSTED WITH THE AID OF A PROPERLY CALIBRATED FLUE GAS ANALYZER. Isolate the boiler from the electrical supply and remove the appliance casing. Set the flue gas analyzer to read CO2 and insert the probe into the flue analysis test point (A-air, B-flue Fig. 3). Restore the electrical supply to the boiler and switch the boiler to the OFF mode. To adjust the gas valve you must first ensure that the fan speed potentiometers (trim pots) have been set correctly. Remove the 3-selector knobs, locate and press the CO button). The appliance will now operate in CO mode for approximately 15- minutes.

GAS VALVE MAXIMUM SETTING

Locate and gently turn the HTG trim pots until the maximum value (max fan speed) is obtained and check that it corresponds with the appropriate CO2 value (Maximum) for the respective boiler. If the CO2 reading is correct, proceed to gas valve minimum setting. However, If the CO2 reading is incorrect, the maximum gas pressure must be adjusted as follows:

-Using a suitable screwdriver, very slowly turn the maximum adjustment screw (Fig. 4) – clockwise to decrease, counter clockwise to increase – until the correct value is displayed on the CO2 analyzer (allow time for the analyzer to stabilize).

GAS VALVE MINIMUM SETTING

Locate and gently turn the HTG trim pot until the minimum value (min fan speed) is obtained and check that it corresponds with the appropriate CO2 value (Minimum) for the respective appliance. If the CO2 reading is correct, rotate the HTG trim pot until the correct value is obtained for the respective appliance (see fan speed table) and proceed.

However, If the CO2 reading is incorrect, the minimum gas pressure must be adjusted as follows:

-Using a suitable screwdriver, very slowly turn the minimum adjustment screw (Fig. 4) – clockwise to increase, counter clockwise to decrease - until the correct value is displayed on the CO2 analyzer (allow time for the analyzer to stabilize).

INSTALLATIONS AT ELEVATION

Rated inputs are suitable for up to 4,500 ft elevation (see technical data table). Consult the factory for installations at altitudes over 4,500 ft above sea level. No hardware changes are required to the boilers for installations up to 10,000 ft (adjustments may be required).

COMPLETION

On completion of the combustion analysis check and/or any gas valve adjustment, set the HTG trim pot to the corresponding value as detailed in the fan speed table. Reattach the 3-selector knobs. Remove the test probe from the test point and reattach the sealing screws and/or cap.

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