Raypak HD401, HD101 specification

A. General
1. The water heater(s) shall be fired with	gas at a rated input of	BTU/hr.

2.The water heater(s) shall be CSA tested and certified with a minimum thermal efficiency of 85 percent at full fire.

3.The water heater(s) shall be ASME inspected and stamped and National Board registered for 160 PSIG working pressure, complete with a Manufacturer's Data Report.

4.The water heater(s) shall have a floor loading of 45 lbs. /square foot or less.

B.Heat Exchanger

1.The heat exchanger shall be of a single-bank, horizontal-grid design with nine integral copper fin tubes, each end of which is rolled into an ASME water heater quality steel tube sheet.

2.The heat exchanger shall be sealed to 160 PSIG rated bronze headers with high temperature silicone "O" ring gaskets.

3.The low water volume heat exchanger shall be explosion-proof on the water side and shall carry a twenty-year warranty against thermal shock.

4.The headers shall be secured to the tube sheet by stud bolts with flange nuts to permit inspection and maintenance without removal of external piping connections. The heat exchanger shall incorporate "V” baffles between the tubes to ensure complete contact of the external tube surfaces with the products of combustion.

5.The water heater(s) shall be capable of operating at inlet water temperatures as low as 105°F without condensation.

6.The heat exchanger shall be AB-1953 compliant in construction and verification by a third- party certification agency.

C.Burners

1.The tubular burners shall have gas orifices, punched ports and slots, be capable of quiet ignition and extinction without flashback at the orifice, and be manufactured from corrosion- resistant, stainless steel with low expansion coefficient.

2.The burners will be supplied with a fan-assisted, clean burning, and highly efficient fuel-air mixture.

D.Ignition Control System

1.The water heater(s) shall be equipped with a 100 percent safety shutdown system.

2.The ignition shall be Hot Surface Ignition type with full flame rectification by remote sensing separate from the ignition source, with a three try-for-ignition sequence, to ensure consistent operation.

3.The igniter will be located away from the water inlet to protect the device from condensation during startup.

4.An external viewing port shall be provided, permitting visual observation of burner operation.

E.Gas Train

1.The water heater(s) shall have dual-seated main gas valve(s).

2.Gas control trains shall have a redundant safety shut-off feature, main gas regulator, and plugged pressure tapping to meet the requirements of ANSI Z21.10.3/CSA 4.3.

F.Water Heater Control

1.The following safety controls shall be provided:

a.High limit control

b.Flow switch

c.PSIG ASME pressure relief valve, piped by the installer to an approved drain

d.Temperature and pressure gauge

2.The water heater(s) shall be equipped with an energy-saving pump relay, mounted and wired, which automatically shuts off the water heater pump at a set period after water heater shut- down (adjustable for two settings of five or ten minutes) to avoid standby losses associated with constant pump operation.

G.Firing Mode

1.For models HD101 – HD401, provide on/off control of the gas input to the water heater (two- stage fire optional).

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HD101, HD401 specifications

Raypak is renowned for its commitment to high-quality heating solutions, with the HD101 and HD401 models standing out in their product range. These units are designed specifically for commercial applications, providing reliable and efficient hydronic heating systems. The HD series embodies innovation while addressing the unique demands of larger spaces.

One of the main features of the HD101 and HD401 is their stainless steel construction, which ensures increased durability and resistance to corrosion. This design choice enhances the longevity of the units, making them ideal for various installations in commercial or industrial settings.

Both models are equipped with a high-efficiency heat exchanger that maximizes heat transfer while minimizing energy consumption. This feature is particularly significant in today’s environmentally conscious market, as it contributes to lower operating costs and reduced carbon footprints. The heat exchangers are engineered for easy maintenance, offering simplicity when service is required.

In terms of technology, the HD101 and HD401 include advanced digital controls that allow for precise temperature regulation. This user-friendly interface enables operators to easily manage and monitor heating parameters, facilitating optimal performance and energy management.

The models also feature modulating burners that adjust their output according to the heating demand. This capacity for modulation results in smoother operation and an overall increase in efficiency, as the burners can maintain consistent temperatures without excessive energy use.

Another noteworthy characteristic is their compatibility with various control systems, including BMS (Building Management Systems). This adaptability allows for seamless integration into existing infrastructure, providing users with greater versatility and control over their heating environments.

Both the HD101 and HD401 come with advanced safety features, including flame rollback protection and pressure monitoring, ensuring safe operation even in demanding conditions. Additionally, their compact design allows for easy installation in limited spaces while still providing powerful heating capabilities.

Ultimately, the Raypak HD101 and HD401 are exceptional choices for those in need of high-efficiency commercial heating solutions. With their robust construction, advanced technology, and user-friendly features, these models promise to deliver reliable performance and energy savings for years to come. Whether for a large facility or a specific industrial application, they stand ready to meet the heating challenges of today’s commercial landscape.