Raypak 926-1758 warranty Raytherm - Type H, Hydronic Heating Boilers, Commercial, Engineer, Date

Job:		Raytherm® - Type H
Engineer:		Hydronic Heating Boilers
Contractor:		Commercial
	Date:
Prepared By:		Models 926-1758 (Outdoor)
Model:

EFFICIENT

82% thermal efficiency – highest of any atmospheric boiler available today

THERMAL SHOCK PROOF

Twenty-year warranty against thermal shock damage up to 150°F differential

Maximum operating temperature: 230°F

LIGHTWEIGHT

A floor load of 70 lbs./sq. ft. or less

HIGH RECOVERY

Cuts fuel costs substantially because the standby and radiation losses normal to other boilers are eliminated

LOW WATER OPERATING TEMPERATURE								Fig. #8953
	Operates with water temperature as low as 105°F
	without condensing
Heat Exchanger		Controls (cont.)		Temperature Controllers
ƒ ASME Inspected and Stamped		ƒ	On/Off Switch	Note: H1 and H5 do not require a controller
	160 PSIG	ƒ	Flow Switch		B-7	Modulating
ƒ	National Board Approved	ƒ Economaster II Pump Time Delay
					B-5		Modulating, Outdoor Reset
ƒ	Headers
		Gas Control Train			B-6 Two-stage
	Glass-lined Cast Iron – Standard
					B-		Four-stage Digital
	Bronze – Option A-1	ƒ Manual Main Gas Shut-off Cock
					Y-241 Electronic Sequencer,
ƒ	Finned Tubing	ƒ	Main Gas Pressure Regulator
							1-4 Stages
	Copper – Standard	ƒ Redundant Safety Shut-off Valve
					Y-281 Electronic Sequencer,
	Cupro Nickel – Option A-3	ƒ	Control Valve
							1-8 Stages
ƒ ASME Steel Tube Sheet		ƒ	Firing Mode
ƒ	Silicone O-Rings		On/off (H4)	Additional Safety Controls
ƒ	60 PSIG ASME Pressure Relief Valve		Two-stage Firing (H3)
					F-9		Low Water Cut-off Probe
ƒ	Temperature and Pressure Gauge		Four-stage Firing (H9)
					I-1	High Limit Control,
	(Boiler)		Mechanical Modulation,
							Auto Reset
ƒ	Water Connections		110-170°F (H5)
					S-1		Low Gas Pressure Switch
	Left Hand – Standard		Mechanical Modulation,
					S-2	High Gas Pressure Switch
	Right Hand – Option A-6		150-210°F (H1)
ƒ	Flow Configuration		Motorized Modulation (H2)
	Two-pass – Standard		B-6000 (H6)
	Single-pass (Cast Iron Only)	ƒ	Fuel	Regulatory Agency Requirements
ƒ	Pump, Rear-mounted (Optional)		Natural Gas
	4.25” Impeller		Propane Gas
	4.7” Impeller	ƒ Design Certified ANSI Z21.13/CSA 4.9
Controls		Construction
ƒ 120V, 60Hz, 1 Ph Power Supply		ƒ	Front Controls
ƒ	120/24V Transformer	ƒ	Stainless Steel Burners
ƒ	100% Pilot Shut-off/Lockout	ƒ Polytuf Powder Coat Finish
ƒ Electronic, Intermittent Ignition (IID)		ƒ	Stackless Top
	Pilot	ƒ	Base (Optional)
ƒ	High Limit Control, Manual Reset		Combustible Floor Shield – Option J-1

Catalog No.: 2000.22N Effective: 12-1-07 Replaces: 10-15-03