Raypak warranty Raytherm - Type H, Hydronic Heating Boilers, Models 181-401- Indoor, Engineer

Job:			Raytherm® - Type H
Engineer:			Low NOx
Contractor:			Hydronic Heating Boilers
Prepared By:	Date:
			Models 181-401 - Indoor
Model:		Indoor

LOW NOx

Less than 40 nanograms per joule

EFFICIENT

82% 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 and tank-type water heaters are eliminated

LOW WATER OPERATING TEMPERATURE Operates with water temperature as low as 105°F without condensing

Heat Exchanger

ƒASME Inspected and Stamped 160 PSIG

ƒNational Board Approved

ƒHeaders

Cast Iron Glass-lined – Standard

Bronze – Option A-1

ƒFinned Tubing

Copper – Standard

Cupro Nickel – Option A-3

ƒASME Steel Tube Sheet

ƒSilicone O-Rings

ƒASME Pressure Relief Valve

45 PSIG – Standard

PSIG ASME – Optional

ƒTemperature and Pressure Gauge, Shipped Loose

ƒWater Connections

Left Hand – Standard

Right Hand – Option A-6

ƒFlow Configuration – Two-pass

ƒPump – Optional

Mounted, 1/8 HP, 120 V, 1∅, 60 Hz

Controls

ƒ120V, 60Hz, 1 Ph Power Supply

ƒ120/24V Transformer

ƒ100% Pilot Shut-off/Lockout

ƒElectronic, Intermittent Ignition (IID) Pilot

Controls (cont'd)		Temperature Controls
ƒ High Limit Control, Manual Reset		B-6	2-stage Aquastat –
ƒ	On/Off Switch		100-200ºF
ƒ	Flow Switch	B-26	2-stage Digital Controller
ƒ Economaster II Pump Time Delay		B-27	2-stage Digital Controller,
Gas Train			Outdoor Reset
		Y-241	Electronic Sequencer,
ƒ	Natural Gas		1-4 Stages
ƒ Manual Main Gas Shut-off Cock		Y-281	Electronic Sequencer,
ƒ Main Gas Pressure Regulator			1-8 Stages
ƒ Redundant Safety Shut-off Valve		Additional Safety Controls
ƒ	Control Valve
ƒ	Firing Mode	F-10	Low Water Cut-off Probe
	On/off (H4)	I-1	High Limit Control, Auto
	Two-stage firing (H3)		Reset
ƒ	Design Certified	S-1	Low Gas Pressure Switch
	ANSI Z21.13 H Stamp	S-2	High Gas Pressure Switch

Construction

ƒFront Controls

ƒ	Stainless Steel, Fan-Assisted	Regulatory Agency Requirements
	Burners
ƒ	Polytuf Powder Coat Finish

ƒDraft Diverter

ƒBase – Optional

Combustible Floor Shield – Option J-1

Catalog No.: 2000.203E Effective: 12-1-07 Replaces: 4-1-05