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*

)

Model

(WH1-)

*

PUMP HP – AMPS*

Water Hardness

Soft Medium Hard

504 1/4 - 6 1/4 - 6 3/4 - 11

754 1/4 - 6 1/2 - 7 3/4 - 11
1104 1/4 - 6 1/2 - 7 1 - 14
1504 1/2 - 7 1 - 14 1 - 14
2004 1 - 14 1 1/2 - 15 1 1/2 - 15

CLEARANCES

Front 24” 24”
Rear 12” 24”
Right 1” -­Left 1” -­Top 0” 10”
Floor 0” -­Vent 1” --

Certified

Minimum

Recommended

Service

Water Hardness

Soft Medium Hard*

0-4 Grains Per Gallon 5-15 Grains Per Gallon 16-25 Grains Per Gallon**

ΔT

Model

504 17 50 3.6 2 8.3 17 50 3.6 2 8.3 9 95 10.4 2 25.7

754 26 50 4.0 2 8.7 17 73 7.8 2 17.3 14 90 11.4 2 25.3

1104 21 85 11.5 2-1/2 16.2 21 85 11.5 2-1/2 16.2 15 116 19.6 2-1/2 27.8

1504 27 94 16.2 2-1/2 21.7 24 105 19.6 2-1/2 26.5 22 115 23.0 2-1/2 31.1

2004 31 108 25.2 2-1/2 32.4 31 108 25.2 2-1/2 32.4 29 118 29.6 2-1/2 38.1

SHL includes 50ft of tubing each way (total 100 ft)
* Must use optional Cupro-nickel heat exchanger
** If over 25 GPG, a water softener MUST be used.

(ºF)

GPM

ΔP

(ft wc)

504 2545 1697 1273 1018 848 727 636 566 509

754 3818 2545 1909 1527 1273 1091 955 848 764
1104 5383 3589 2692 2153 1794 1538 1346 1196 1077
1504 7341 4894 3670 2936 2447 2097 1835 1631 1468
2004 9788 6525 4894 3915 3263 2797 2447 2157 1958

MTS

(in)

SHL

(ft wc)

ΔT

(ºF)

Temperature Rise (ºF)

20 30 40

GPM

RECOVERY RATES

50 60 70 80 90 100

ΔP

(ft wc)

MTS

(in)

SHL

(ft wc)

ΔT

(ºF)

GPM

ΔP

(ft wc)

MTS

(in)

SHL

(ft wc)

Raypak, Inc. ▪ 2151 Eastman Avenue, Oxnard, CA 93030 ▪ [phone] ▪ Fax [phone] ▪ www.raypak.com