Raypak WH1-1104 User Manual

Job:

Engineer:

Contractor:

Prepared By: Date:

Model: Indoor/Outdoor:

Up to 85% Thermal Efficiency

California AB 1953 Compliant - < .25% Pb

100% Factory Fire Tested

Maximum Outlet Water Temperature: 200°F

Minimum Acceptable Inlet Water Temperature: 120°F

Full Safety Diagnostics with History

Footprint: Less Than 5-1/2 ft

Limited Twenty-Year Thermal Shock Warranty

Limited Five-Year Heat Exchanger Warranty

Soft-Start Modulating Controller with LCD Display

2

MVB

®

- Type WH

Water Heaters

Models 504-2004

Status Display Lights

Heat Exchanger

 Bronze Headers
 ASME HLW Stamped

160 PSIG Working Pressure

 National Board Approved
 Fin Tubing

Copper – Standard
Cupro Nickel – Option A-3

 ASME Powder-Coated Tube

Sheet

 Silicone High Temp O-Rings
 ASME Pressure Relief Valve

125 PSIG – Standard
PSIG – Optional

 Temperature and Pressure

Gauge,
Shipped Loose

 Stainless Steel Evaporator Plate

Control

 120V, 60Hz, 1Ø, Power Supply
 120/24V 60Hz Transformer
 Ignition Module

3-Try – Standard
Single-Try – Option C-6

 Hot Surface Ignition (HSI)
 Remote Flame Sensor
 High Limit, Manual Reset, Fixed,

200ºF

 On/Off Power Switch
 Flow Switch
 Blocked Vent Pressure Switch
 Combustion Air Proving Switch
 Pump Switch
 Pump Time Delay
 Diagnostics Panel

Control (cont.)

 On/Off Temperature Control
 Water Temperature Sensors (3)

Burner

 Ultra-Low NOx: Less than 20 PPM

Gas Train

 Fuel

Natural Gas
Propane

 Zero Governor Regulator
 Dual-Seat Combination Valve
 On/Off Firing with Soft-Start

Construction

 Indoor/Outdoor Construction
 Front Controls Enclosed
 PolyTuf Powder Coat Finish
 Rear Connections (Water, Electrical,

Gas, Vent, Combustion Air)

 Design Certified ANSI Z21.10.3/

CSA 4.3

 AB-1953 Compliant

Venting

 Vent Termination

Outdoor – Option D-11
Indoor, Horizontal – Option D-15
Indoor, Vertical (by others)

 Combustion Air

In-Line Filter Kit – Option D-17
Air Intake Elbow – Option D-16

 Extractor – Optional

By others
Not required

Temperature Controllers

B-26 Temp-Tracker Digital Controller,

2 Water Heaters

B-21 Temp-Tracker Digital Controller,

3-4 Water Heaters

Y-241 Electronic Sequencer,

2-4 Water Heaters

Y-281 Electronic Sequencer,

5-8 Water Heaters

Options

A-30 Air Vent, Auto, 150 PSI
F-10 Low Water Cut-Off, Remote Probe
I-3 High Limit, Auto Reset, Adj.,

40-180°F

I-5 High Limit, Manual Reset, Adj.,

100-200°F

P- Bronze Pump: HP, 120V, 1∅,

60Hz

Water Hardness:

P- Cold Water Start
P- Cold Water Run
S-1 Low Gas Pressure Switch,

S-2 High Gas Pressure Switch,

Regulatory Agency Requirements

Loose Mounted

Manual Reset

Manual Reset

GPG

L

W

Catalog No.: 3500.284D Effective: 02-15-10 Replaces: 07-15-08

MVB – Type WH

Models 504-2004 Model

Model

(WH1-)

504 500 420 43 30 35 23-3/4 1 2 8 14-1/8 6 36 8 2 600 5.4 12
754

1104 1045 888 55 43 47 35-3/4 1-1/4 2-1/2 10 16 6 49 8 2 720 5.4 12
1504 1425 1211 61 50 53 41-3/4 1-1/4 2-1/2 12 18-1/8 8 53 8 2 780 5.4 12
2004 1900 1615 75 61 65 53-3/4 2 2-1/2 14 20-1/8 8 69 9 5 940 5.4 18

- Ratings shown are for elevations up to 4,500 feet. For installations at elevations
above 4,500 feet, please consult the factory for additional instructions.

- For direct vent applications, please contact the factory about relocating the pump.

MBTUH

Input Output Height NPT NPT Flue Ø C/A Ø

750 630 49 36 41 29-3/4 1 2 10 16 6 42 8 2 670 5.4 12

B D E F G H K M N P R V

Dimensions (in.)

* Current draw is for heater only.

(Supply breaker must have delayed trip.)

Ship

Weight

(Lbs.)

Foot-

print

(Ft

2

Amps*

)