Raypak 85, 120 manual Introduction, Xpak

5 - INTRODUCTION

The XPak boiler is a wall hung, fan assisted, direct vent, heating boiler only. These boilers – by design – incorporate electronic ignition, circulating pump, pressure relief valve, pressure gauge, and automatic bypass.

As supplied, the boiler will automatically modulate to provide central heating outputs between 25,600 - 87,000 Btu/hr (7.5-25.5 kW) - XPak 85 and 27,300 - 119,500 Btu/hr (8-35 kW) XPak 120.

IMPORTANT

It is the law that all gas appliances are installed by a competent person.

It is in your own interest and that of safety to ensure that the law is complied with.

•The installation must conform to the requirements of the authority having jurisdiction or, in the absence of such requirements, to the National Fuel Gas Code, ANSI Z223.1/NFPA 54 Where required by the authority having jurisdiction, the installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1.

•The installation should conform with CGA B149 INSTALLATION CODE and/or local installation Code, plumbing or waste water codes and other codes as applicable.

•Clearances from combustible material must be strictly adhered to.

•Manufacturers instructions must NOT be interpreted in anyway as overriding statutory obligations.

The XPak family comprises a range of high-efficiency hot water boilers with outputs ranging from 87,000 Btu/hr (25.5 kW) to 119,500 Btu/hr (35 kW). Each appliance is provided with a fan powered flue outlet with an annular co-axial combustion air intake that can be rotated – horizontally – through 360 degrees for various horizontal or vertical applications. The XPak can also be used with two pipe flue vent system. These appliances are designed for use with a sealed system only; consequently they are not intended for use on open vented systems.

This booklet is an integral part of the appliance. It is therefore necessary to ensure that the booklet is handed to the person responsible for the property in which the appliance is located/ installed. A replacement copy can be obtained from Raypak customer services.

General layout (Fig. 1)

1Water pressure switch

2Pump

3Bottom auto air vent (AAV)

4Gas injector

5Condense trap

6Return sensor

7H stamp main heat exchanger

8Main heat exchanger

9Flue thermostat

10Flue sensor

11Flue gas analysis test point

12Flue outlet & air intake

13Blocked flue switch

14Top automatic air vent

15Flow sensor

16High limit thermostat

17Ignition transformer

18Sensing Electrode

19Spark Electrode

20Top automatic air vent drain pipe

21Condensate level sensor

22Cylindric Burner

23Fan assembly

24Mixer

25Gas modulator coil

26Gas valve

27Pressure relief valve

RBoiler IN connection F Boiler OUT connection G Gas connection

P Pressure relief valve drain C Condensate drain pipe

8

		XPAK 85
R	F	G	P
			C
	XPAK 120
R	F	G	P
Fig. 1			C