Raypak WH1-0401 Installation Manual
INSTALLATION & OPERATING
LLC
®
INSTRUCTIONS
®
Raytherm
Hot Water
Supply
Heaters
Models 0133–4001
Type WH
WARNING: Improper installation, adjustment, alteration, service or maintenance can
cause property damage, personal injury or loss of life. Refer to this manual.
Installation and service must be performed by a qualified installer, service agency or
the gas supplier.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and
liquids or other combustible materials in the vicinity of this or any other appliance. To
do so may result in an explosion or fire.
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or
the gas supplier.
This manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future
reference.
CATALOG NO. 3000.52Q Effective: 09-01-15 Replaces: 04-20-12 P/N 241075 Rev. 18
Rev. 16 reflects the following:
Changes to: ASME Mark on page 1, warnings on page 4, warning on page 27
Additions: Warnings on page 7, warning on page 13, warnings on page 14, warning on page 19, caution on page 20, warn-
ing on page 30, warning on page 48
2
CONTENTS
WARNINGS 4
Pay Attention to These Terms 4
GENERAL SAFETY 5
Time/Temperature Relationships in Scalds 6
RECEIVING EQUIPMENT 6
Model Identification 6
General Specifications 7
All Models (Approved) 7
Hot Water Supply Heaters 7
INSTALLATION 7
Installation Codes 7
Installation Base 7
Clearances 8
Specifications and Dimensions 9
Outdoor Water Heaters 12
Combustion Air (Indoor Units Only) Air for
Combustion and Ventilation 12
Venting 13
Vent Piping 17
Vent Damper Installation 18
Plumbing 20
Flow Rates 22
Piping—Domestic Hot Water Supply
Heaters 23
Piping Diagram—Type WH - Unitemp 80
System 24
Controls—General 25
Limit Controls 26
Electrical Connections 27
Location of Controls 28
START-UP PROCEDURES 30
Before Start-Up 30
General 30
Initial Start-Up - Pump and Motor 30
Intermittent Pilot System Checkout
Procedure (S8600) 32
INSPECTION PROCEDURES 32
Burners 32
Controls 32
Inspection Procedures 33
ADDENDA: LOW NOx HEATERS
Models 0181 to 0401 33
Operation 33
Start-Up Procedures
(S8610B Ignition Module) 33
Burner Adjustment 34
Visual Inspection 34
Electrical 34
High Gas Pressure Switch 34
Burner Tray Removal 34
Gas Valve Removal 34
Main Burner And Orifice Removal 35
Pilot Removal 35
Combustion Fan Removal 35
TROUBLESHOOTING 36
Electrical 36
Mechanical 37
WIRING DIAGRAMS 38
Wiring Diagram—W2/WH2 133 38
Wiring Diagram—WH1 0181/0261 39
Wiring Diagram—WH1 0331/0401 40
Wiring Diagram—WH1 0514–0724 41
Wiring Diagram—WH1 0824–1826 42
Wiring Diagram—WH1 2100–2500 43
Wiring Diagram—WH1 3001–4001 44
Troubleshooting—Pumps 45
SERVICE AND MAINTENANCE
PROCEDURES 45
Tube Cleaning 45
Burner Tray Removal 46
Gas Valve Removal 46
Gas Valve Adjustment - Robertshaw
(Invensys) 7000 Series 2-Stage Gas Valve
with Solenoid Valve 46
Main Burner and Orifice Removal 47
Pilot Removal and Cleaning 47
High Limit or Tankstat Removal 47
Heat Exchanger Removal 47
Heat Exchanger Re-Assembly 47
Combustion Chamber Removal 48
Control Well Replacement 48
Tube Replacement 48
Cleaning Flue Gas Passageways 49
REPLACEMENT PARTS 49
WARRANTY 50
3
WARNINGS—Pay Attention to These Terms
DANGER:
WARNING:
AUTION:
C
NOTE:
DANGER: Failure to install the draft hood and
properly vent the water heater to the outdoors as
outlined in the Venting section of this manual can
result in unsafe operation of the water heater. To
avoid the risk of fire, explosion, or asphyxiation from
carbon monoxide, never operate this water heater
unless it is properly vented and has an adequate air
supply for proper operation. Be sure to inspect the
vent system for proper installation at initial start-up;
and at least annually thereafter. Refer to the
Maintenance section of this manual for more
information regarding vent system inspections.
DANGER: Make sure the gas on which the heater
will operate is the same type as that specified on the
heater rating plate.
Indicates the presence of immediate hazards which will cause severe
personal injury, death or substantial property damage if ignored.
Indicates the presence of hazards or unsafe practices which could cause
evere personal injury, death or substantial property damage if ignored.
s
ndicates the presence of hazards or unsafe practices which could cause
I
minor personal injury or product or property damage if ignored.
Indicates special instructions on installation, operation, or maintenance which
are important but not related to personal injury hazards.
WARNING: Both propane and natural gas have an
odorant added to help detection. Some people may
not physically be able to smell or recognize this
odorant. If unsure or unfamiliar about the smell
associated with propane or natural gas, ask the gas
supplier. Other conditions, such as "Odorant Fade",
which causes the odorant to "fade", or diminish in
intensity can also hide or camouflage a gas leak.
WARNING: UL recognized fuel gas detectors are
recommended in all enclosed propane and natural
gas applications wherein there is a potential for an
explosive mixture of fuel gas to accumulate and their
installation should be in accordance with the
detector manufacturer's recommendations and/or
local laws, rules, regulations, or customs.
DANGER: When servicing or replacing components
that are in direct contact with the water, be certain
that:
• There is no pressure in the heater. (Pull the release
on the relief valve. Do not depend on the pressure
gauge reading).
• The heater water is not hot.
• The electrical power is off.
WARNING: Risk of electrical shock. More than one
disconnect switch may be required to de-energize
the equipment before servicing.
WARNING: All venting types must be of the same
material or product throughout the entire exhaust
installation to ensure proper securing and sealing.
WARNING: Should overheating occur or the gas
supply valve fail to shut, do not turn off or disconnect
the electrical supply to the heater. Instead, shut off
the gas supply at a location external to the heater.
WARNING: Do not use this heater if any part has
been under water. Immediately call a qualified
service technician to inspect the heater and to
replace any part of the control system and any gas
control which has been under water.
WARNING: Altering any Raypak pressure vessel
by installing replacement heat exchangers, tube
bundle headers, or any ASME parts not
manufactured and/or approved by Raypak will
instantly void the ASME and/or CSA ratings of the
vessel and any Raypak warranty on the vessel.
Altering the ASME and/or CSA ratings of the vessel
also violates national, state, and local approval
codes.
WARNING: Propane appliances should not be
installed below-grade (for example, in a basement) if
such installation is prohibited by federal, state and/or
local laws, rules, regulations or customs.
4
DANGER
!
Va pors fro m fla mma ble l iqui ds
will explode and catch fire
c
ausing death or severe
burns.
Do not use or store flammable
products such as gasoline solv en t s o r ad h es i ve s in t he s a me
room or area near the water
heater.
Keep flammable products:
1. Far away from heater,
2. In approved containers,
3. Tightly closed and
4. Out of children's reach.
Installation:
Do not install water heater where flammable products will be
stored or used unless the main burner and pilot flames are at
least 18" above the floor. This will reduce, b ut not eliminate, the
risk of vapors being ignited by the main burner or pilot flame.
Read and follow water heater warnings and instructions.
Water heater has a main
burner and pilot flame.
T
he pilot flame:
1. Is on all the time or intermittently (IID).
2. Will ignite flammable vapors.
Vapors:
1. Cannot be seen,
2. Are heavier than air,
3. Go a long way on the floor,
4. Can be carried from other
rooms to the pilot flame by air
currents.
Water temperature over 125°F can
cau se insta nt se v e re bu rn s o r d eath
from scalds.
Children, disabled, and elderly are
at highest risk of being scalded.
See instruction manual before setting temperature at water heater.
Feel water before bathing or showering.
Temperature limiting valves are
available, see manual.
ARNING - CALIFORNIA PROPOSITION
W
65: This product contains chemicals known to the
State of California to cause cancer, birth defects or
other reproductive harm.
GENERAL SAFETY
To meet commercial hot water needs, this heater is
equipped with a manual reset temperature limit that
does not exceed 200°F. However, water temperatures
over 125°F can cause instant severe burns or death
from scalds. This is the preferred temperature setting
when supplying general purpose hot water.
Safety and energy conservation are factors to be considered when setting the water temperature on the
thermostat. The most energy-efficient operation will
result when the temperature setting is the lowest that
satisfies the needs consistent with the application.
Maximum water temperatures occur just after burner
has shut-off. To determine the water temperature
being delivered, turn on the hot water only, place a
thermometer in the stream, and read the thermometer.
The following chart details the relationship of water
temperature and time with regard to scald injury and
may be used as a guide in determining the safest
water temperature for your applications.
Temperature Time to Produce Serious Burn
120°F More than 5 minutes
125°F 1-1/2 to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1-1/2 seconds
155°F About 1 second
Table courtesy of Shriners Burn Institute.
Table A: Time to Produce Serious Burn
5
Time/Temperature Relationships in Scalds
RECEIVING EQUIPMENT
he temperature of the water in the storage tank
T
heater can be regulated by setting the temperature
ial on front of the tankstat. To comply with safety reg-
d
ulations, the tankstat was set at its lowest setting
before shipment from the factory.
Fig. 1 illustrates a mechanical tankstat. To adjust the
water temperature, insert a small straight screwdriver
into slotted screw in hole in front of tankstat and turn
wheel to desired setting. Thermostat is adjustable up
to 190°F.
Fig. 1: Tankstat Adjustment
DANGER: There is a Hot Water SCALD Potential if
the tankstat is set too high.
WARNING: Pump motors should NOT be
supported by any type of stand or support from
above due to possible misalignment of pump and
otor which might occur.
m
On receipt of the equipment, visually check for external damage to the carton or the shipping crate. If the
carton or shipping crate is damaged, make a note on
the Bill of Lading and report the damage to the Carrier
immediately. Remove the heater from the carton or the
shipping crate.
Do NOT use the shipping crate base as an installation
base. On occasion, items are shipped loose. Be sure
that you receive the number of packages indicated on
the Bill of Lading.
When ordering parts, you must specify Model and
Serial Number of the heater. When ordering under
warranty conditions, you must also specify date of
installation.
Raypak recommends that this manual be reviewed
thoroughly before installing your Raypak heater. If
there are any questions which this manual does not
answer, please contact the factory or your local
Raypak representative.
Claims for shortages and damages must be filed with
carrier by consignee. Permission to return goods must
be factory-authorized and are subject to a stocking
charge.
CAUTION: Hotter water increases the risk of
SCALDING!
NOTE: When this heater is supplying general
purpose hot water requirements for use by
individuals, a thermostatically controlled mixing
valve for reducing point of use water temperature is
recommended to reduce the risk of scald injury.
Contact a licensed plumber or the local plumbing
authority for further information.
Purchased parts are subject to replacement only
under the manufacturer's warranty. Debits for defective replacement parts will not be accepted and will be
replaced in kind only per our standard warranties.
Model Identification
The model identification number and the heater serial
number are found on the heater data plate. The model
number will have the form WH1-0514A or similar
depending on the heater model. (WH = Hot Water
Supply System, 1 = on/off firing, 0514 = size of
heater).
Rated inputs are suitable for up to 2000 feet elevation.
For elevations above 2000 feet, reduce input 4% for
each 1000 feet above sea level.
6
General Specifications
The Raypak water heaters are design certified and
tested under the latest requirements of the American
National Standard, ANSI Z21.10.3/CSA 4.3. Each
heater has been constructed and pressure tested in
ccordance with the requirements of Section IV of the
a
American Society of Mechanical Engineers Code, and
factory fire tested. Materials are CSA-certified for lowlead content (<.25%).
TYPE WH3 with 2-STAGE
CONTROLS
Models 0181-4001
ot water supply heater with low-high fire for 2-stage
H
control. Available with integrally mounted pump, factory mounted and wired for models 0181-1826. To be
used with storage tank systems.
INSTALLATION
All Models (Approved)
All models are National Board approved. Temperature
and pressure gauge is standard. Intermittent ignition
device is standard on models 0514 and up.
Model 0133 has 4-pass heat exchanger, 1 tube per
pass.
Models 0181-0401 have 2-pass heat exchangers, 5
tubes first pass, 4 tubes second pass.
Models 0514-1826 have 2-pass heat exchangers, 5
tubes first pass, 4 tubes second pass.
Models 2100-4001 have 2-pass heat exchangers, 9
tubes per pass.
Models 0926-4001 have optional single pass with cast
iron headers only.
Hot Water Supply Heaters
All Raypak hot water supply heaters are ASME rated
and design certified as hot water heaters, with 125 PSI
pressure relief valves.
TYPE WH1 with ON/OFF CONTROLS
Models 0133-4001
To be used with storage tank systems. Available with
integrally mounted pump, factory mounted and wired
for models 0133-1826. Models 0181, 0261, 0331 and
0401 are Low NOx Hot Water Heaters.
TYPE WH2 with MODULATING
CONTROLS
Models 0133-4001
Hot water supply heater with 110°-170°F gas modulation. Available with integrally mounted pump, factory
mounted and wired for models 0133-1826. To be used
with storage tank systems.
Installation Codes
Installation must be in accordance with local codes, or,
in the absence of local codes, with the latest editions
of the National Fuel Gas Code, ANSI Z223.1/NFPA 54,
and the National Electrical Code, ANSI/NFPA 70. In
Canada installations must conform with the current
CAN/CSA B149 and the Canadian Electrical Code
Part 1 CSA C22.2 No.1. Where required by the authority having jurisdiction, the installation must conform to
American Society of Mechanical Engineers Safety
Code for Controls and Safety Devices for
Automatically Fired Heaters, CSD-1.
WARNING: This product must be installed by a
licensed plumber or gas fitter when installed within
the Commonweatlh of Massachusetts.
Installation Base
The heater should be mounted on a level, non-combustible surface. Heater must not be installed on
carpeting. The heater can be installed on a combustible surface only when the appropriate listed floor
shield base is provided. An optional listed floor shield
base is available for factory installation with the heater
on all indoor models. Do NOT use the shipping base
crate as an installation base.
NOTE: The heater should be located in an area
where water leakage will not result in damage to the
area adjacent to the appliance or to the structure.
When such locations cannot be avoided, it is
recommended that a suitable drain pan, adequately
drained, be installed under the appliance. The pan
must not restrict air flow.
WARNING: The heater shall not be located in an
area where water sprinklers, or other devices, may
cause water to spray through the cabinet louvers and
into the heater. This could cause internal rusting or
damage electrical components, and void the warranty.
7
H
eater
Model
Number
F
loor Base
Part
Number
0
133 001749
0
182/0181 058313
0260/0261 058314
0330/0331 058315
0400/0401 058316
0514 056199
0624 056200
0724 056201
0824 056202
0926* 054597
1083* 054598
1178* 054599
1287* 054600
1414* 054601
1571* 058378
1758* 058379
0962 059233
1125 059234
1223 059235
1336 059236
1468 059237
1631 059238
1826 059239
*Models with factory installed floor
shield as standard.
BOLD TYPE indicates Low NOx models.
Clearances
0
133 0181 to 0514 to 0926 to 2100 to
Location 0401 0824 1826 4001
Floor
Front
Back 12 12 12 24 24
Right 61262424
Left 12 12 18 24 24
*
Vent 66666
Indoor Top 42 39 36 24 24
Outdoor Top NA
See Note 1
See Note 2
Unobstructed
Heater Size
Heater Size
0133 0181 to 0514 to 0926 to 2100 to
Description Location 0401 0824 1826 4001
a
. 3-1/2 in. thick masonr
y
walls Back 9991616
without ventilated air space. Right 5951616
Left 99121616
Vent 55555
Indoor Top 43 39 36 24 24
Outdoor Top Unobstructed NA
b. 1/2 in. insulation board Back 6661212
over 1 in. glass fiber or Right 3631212
mineral wool batts. Left 6691212
Vent 33333
Indoor Top 30 30 24 16 16
Outdoor Top Unobstructed NA
c. 0.024 sheet metal over 1 in. Back 44488
glass fiber or mineral wool Right 34388
batts reinforced with wire Left 44688
on rear face with ventilated Vent 33333
air space. Indoor Top 24 24 18 12 12
Outdoor Top Unobstructed NA
d. 3-1/2 in. thick masonr
y
wall Back 66688
with ventilated air space. Right 66688
Left 66688
Vent 66666
Indoor Top 42 39 36 24 24
Outdoor Top NA Unobstructed NA
e. 0.024 sheet metal with Back 44488
ventilated air space. Right 24288
Left 44688
Vent 22222
Indoor Top 24 24 18 12 12
Outdoor Top Unobstructed NA
f. 1/2 in. thick insulation Back 44488
board with ventilated Right 34388
air space. Left 44688
Vent 33333
Indoor Top 24 24 18 12 12
Outdoor Top NA Unobstructed NA
g
. 0.024 sheet metal with Back 44488
ventilated air space over Right 34388
0.024 sheet metal with Left 44688
ventilated air space. Ve nt 33333
Indoor Top 24 24 18 12 12
Outdoor Top Unobstructed NA
h. 1 in.
g
lass fiber or mineral Back 44488
wool batts sandwiched Right 34388
between two sheets 0.024 Left 44688
sheet metal with ventilated Vent 33333
air space. Indoor Top 24 24 18 12 12
Outdoor Top NA Unobstructed NA
Installation Clearances
(All Dimensions are in Inches)
Note 1: Combustible floor shield is required when heater is to be
installed on a combustible surface. (See ordering info.)
Note 2: Servicing Clearances: Provide at least 24" (Models 0133-
1826), 48" (Models 2100-4001) in front of unit for removal &
servicing of the Controls & Burner Tray. Provide at least 18" on side
opposite water connections for deliming of Heat Exchanger Tubes.
*Vent includes factory supplied drafthoods and does not include field
supplied vent systems above the drafthood. On Models 2100-4001
drafthood is built into heater.
Table C: Clearances From Combustible Surfaces
Table B: Combustible Floorshield Ordering Information
Fig. 2: Alternate Method for Providing a Non-
Combustible Base
Table D: Clearances to Protected Surfaces
8
MODELS 0182-0400 and 0181-0401
MODEL 0133
NOTE: The heater shall be installed in a space large in comparison to the size of the heater. Large space is
defined as having a volume at least sixteen (16) times the total volume of the heater.
Specifications and Dimensions
Indoor Outdoor
Model
Number
WH-0133 136.0 135 132
* Recovery based on manufacturer’s rating.
Input MBH
Recovery
GPH*
Recovery
GPH*
NOTE:
Ratings are shown for elevations up to 2,000 feet. For elevations
over 2,000 feet, reduce ratings 4% for each 1,000 feet above sea
level.
Model Number
WH-0182/0181 181.0 180 18-1/4 62-5/8 12-1/16 6
WH-0206/0261 264.0 262 22-3/8 62-7/8 11-1/8 7
WH-0330/0331 334.0 332 25-3/4 63-3/4 10-3/4 8
WH-0400/0401 399.0 397 29-1/4 65-3/8 12-1/2 9
* Recovery based on manufacturer’s rating.
Input
MBH
Indoor Dimensions (in inches)
Recovery
GPH*
WidthAHeight
C J
9
Flue
Diameter
K
NOTE:
Ratings are shown for elevations up to 2,000
feet. For elevations over 2,000 feet, reduce
ratings 4% for each 1,000 feet above sea level.
Bold type indicates Low NOx models.
MODELS 0514-0824
MODELS 0 962-1826
WATER
2
OUT
6
1
1-1/8
3
-3/4
G
AS
1 NPT
17
44-1/8
DRAFT HOOD
INDOOR
O
UTDOOR
ELECT
CONN
PUMP
(OPTIONAL)
PUMP COVER
(OPTIONAL)
14-1/2
2-1/4
10
5
COMBUSTIBLE
FLOOR SHIELD
(OPTIONAL)
STACKLESS TOP
19-1/2
IN
2-3/4
3
3
57
14-3/4
29-1/2
K
11-1/4
27-3/4
23-5/8
WATER
2-1/2
2-1/2
6
14
OUT
IN
GAS
COMBUSTIBLE FLOOR SHIELD
(OPTIONAL)
11-1/8
5-1/8
1-1/8
5
11-3/4
ELECT
CONN
(J-BOX)
PUMP
(OPTIONAL)
INDOOR
DRAFT
HOOD
19-1/2
14-1/2
32-1/2
K
B
C
G
A
L
A/2
A
L
A/2
2
8-1/4
Recovery
GPH*
Width
A
Diameter
Flue
K L
Indoor/Outdoor Dimensions (in inches)
Input
MBH
Model
Number
WH-0514 511.5 508 32-3/4 10 25-3/8
WH-0624 627.0 623 37-1/2 12 29-1/2
WH-0724 726.0 722 41-5/8 12 34-1/4
WH-0824 825.0 820 45-3/4 14 38-1/2
* Recovery based on manufacturer’s rating.
NOTE:
Ratings are shown for elevations up to
2,000 feet. For elevations over 2,000 feet,
reduce ratings 4% for each 1,000 feet above
sea level.
Model
Number
WH-0962 961.7 956 52-3/8 68-3/4 33-1/2 1 14 28
WH-1125 1124.7 1118 59-1/4 74-1/2 33-1/2 1 16 32
WH-1223 1222.5 1215 63-5/8 74-1/2 33-1/2 1-1/4 16 32
WH-1336 1336.6 1328 68-5/8 76-1/2 33-1/2 1-1/4 18 36
WH-1468 1467.0 1458 74-7/8 76-1/2 33-1/2 1-1/4 18 36
WH-1631 1630.0 1620 82-1/8 79-1/2 36-1/2 1-1/4 18 36
WH-1826 1825.6 1814 89-3/8 81-1/2 36-1/2 1-1/4 20 40
* Recovery based on manufacturer’s rating.
Input
MBH
Recovery
GPH*
Width
A
Dimensions (in inches)
Overall
Height
Jacket
Height
B
Gas
Conn.
C
G
Flue
Diameter
K L
10
NOTE:
Ratings are shown for elevations
up to 2,000 feet. For elevations
over 2,000 feet, reduce ratings
4% for each 1,000 feet above sea
level.
M
ODELS 0 926-1758
MODELS 2100-4000
MODEL,
32-1/2
6
1
1-1/8
5-1/8
1-1/8
1
9-1/2
14-1/2
5
11-3/4
PUMP COVER
(OPTIONAL)
PUMP
(OPTIONAL)
ELECT
CONN
(J-BOX)
COMBUSTIBLE FLOOR SHIELD
(
OPTIONAL)
1
4
O
UT
46-3/4
I
N
27-3/4
GAS
H
G
A
imensions (in inches)
W
2-3/8
5
9-1/4
5
3-5/8
6
D
idth
A
Gas
onn.
C
G
1 2
1 2
-1/4
1
Model
umber
N
H-0926926.0
W
H-10831083.0
W
H-11781178.0
W
WH-1287 1287.0 1279 68-5/8 1-1/4 2-1/2
WH-1414 1413.0 1404 74-7/8 1-1/4 2-1/2
WH-1571 1570.0 1560 82-1/8 1-1/4 2-1/2
WH-1758 1758.0 1747 89-3/8 1-1/4 2-1/2
* Recovery based on manufacturer’s rating.
Input
Recovery
BH
M
G
1
1
PH*
9
076
171
20
Water
onns.
C
H
-1/2
-1/2
-1/2
2
NOTE:
Ratings are shown for elevations up to 2,000 feet. For elevations
over 2,000 feet, reduce ratings 4% for each 1,000 feet above sea
level.
Model
Number
WH-2100 2100.0 2087 61 68-1/4 ** 3 24
WH-2500 2499.0 2484 70 68-1/4 ** 3 26
WH-3001 3000.0 2982 81-1/4 68-1/4 2 3 28
WH-3500 3500.0 3479 92-1/2 68-1/4 2 3 30
WH-4001 4000.0 3976 103-3/4 68-1/4 2 3 32
* Recovery based on manufacturer’s rating.
** 1-1/2” or 2” contingent on code requirements
Input
MBH
Recovery
GPH*
Width
A
Dimensions (in inches)
Overall
Height
B
Gas
Conn.
G
Water
Conns.
H
Flue
Diameter
K
NOTE:
Ratings are shown for elevations up to 2,000 feet. For
elevations over 2,000 feet, reduce ratings 4% for each
1,000 feet above sea level.
11
Outdoor Water Heaters
Model
Square
Inches
Model
Square
Inches
0133 136 1223 1223
0182/0181 181 1336 1337
0260/0261 264 1468 1467
0330/0331 334 1631 1630
0400/0401 399 1826 1826
0514 512 2100 2100
0624 627 2500 2499
0724 726 3001 3000
0824 825 3500 3500
0962 962 4001 4000
112 5 11 25
BOLD TYPE indicates Low NOx models.
Model
Square
Inches
Model
Square
Inches
0133 34 1223 306
0182/0181 46 1336 335
0260/0261 66 1468 367
0330/0331 84 1631 408
0400/0401 100 1826 457
0514 128 2100 525
0624 157 2500 625
0724 182 3001 750
0824 207 3500 875
0962 241 4001 1000
112 5 282
BOLD TYPE indicates Low NOx models.
These heaters are design certified for outdoor installation. Heaters must not be installed under an overhang
of less than three (3) feet from the top on the heater.
Three (3) sides must be open in the area under the
verhang. Roof water drainage must be diverted away
o
from the heaters installed under overhangs with the
use of gutters.
The point from where the flue products exit the heater
must be a minimum of four (4) feet below, four (4) feet
horizontally from or one (1) foot above any door, window or gravity inlet to a building. The top surface of the
heater shall be at least three (3) feet above any forced
air inlet, or intake ducts located within ten (10) feet horizontally.
CAUTION: Combustion air must not be
ontaminated by corrosive chemical fumes which
c
can damage the heater. Measures must be taken to
prevent the entry of corrosive chemical fumes to the
combustion and ventilation air supply. Such
hemicals include, but are not limited to, chlorinated
c
and/or fluorinated hydrocarbons such as found in
efrigerants, aerosol propellants, dry-cleaning fluids,
r
degreasers, and paint removers. Other harmful
elements may come from bleaches, air fresheners,
or mastics. Vapors from these types of products can
form corrosive acid compounds when burned in a
gas flame. The resulting acidic condensate can
damage or substantially reduce the life of the heater.
It may become necessary to provide outside air
directly to the heater in order to avoid this problem.
a. All Air From Inside The Building:
Each opening shall have a minimum net free square
inches as noted:
Fig. 3: Outdoor Clearances from Openings
High Wind Conditions (Outdoor
Units Only)
In areas where high winds are frequent, it may be necessary to locate the heater a minimum of 3' from high
vertical walls, or install a wind break so the heater is
not in direct wind current.
Combustion Air (Indoor Units Only) Air for Combustion and Ventilation
The heater must have both combustion and ventilation
air. Minimum requirements for net free air supply
openings are 12 inches from ceiling for ventilation and
12 inches from the floor for combustion air as outlined
in ANSI Z223.1, and any local codes that may have
jurisdiction.
Table E: All Air From Inside The Building
b. All Air From Outdoors:
When air is supplied directly from outside of building,
each opening shall have a minimum net free square
inches as noted:
Table F: All Air From Outdoors
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NOTE: If louvers, grills or screens are used on the
O
utdoor Top
8
-3/8"
O
UTDOOR
F
LOOR BASE
Pagoda Top (Shipped Loose with Heater)
penings, obtain the net free area from their suppli-
o
er or manufacturer. If the design free area of a louver
is not known nor available, it shall be assumed that
wood louvers will have 20-25 percent free area and
etal louvers will have 60-75 percent free area as
m
specified in the National Fuel Gas Code.
Venting
WARNING: Examine the venting system at least
once a year. Check all joints and vent pipe
connections for tightness, corrosion or deterioration.
Outdoor Installations
Model 0133
1. Remove the front (4) screws.
2. Line up outdoor top vent opening over heater vent
opening.
3. Lower outdoor top onto unit lining up slots in the
outdoor top with screws holes in jacket top.
4. Reinstall (5) screws to secure jacket top and outdoor top to unit.
Models 0181-0401 and 0182-0400
Fig. 5: Outdoor Top Installation
Vent Terminal (Outdoor) Stackless Top
Installation
1. Insert tabs into keyhole (4 places).
2. Snap tabs into keyholes so as not to pull out.
Fig. 6: Outdoor Top Installation
Fig. 4: Outdoor Top Installation
13
Models 0514-0824
Models 0926-1758
1. Lower outdoor "Stackless" top onto unit. Position
top so it is centered on unit from side-to-side and
front-to-rear.
Fig. 7: Outdoor Top Installation
Heaters are shipped with outdoor vent terminal factory installed.
Models 2100-4001
These units are not certified for outdoor installation.
Indoor Installations
WARNING: Do not use the “one permanent open-
ing” method if the equipment room is under negative
pressure conditions or the equipment is common
vented with other gas-fired appliances.
WARNING: These heaters must not be connected
into any portion of mechanical draft systems
operating under positive pressure. To do so may
cause the flue products to be discharged into the
living space causing serious health injury.
Model 0133
Refer to Fig. 9 on the following page.
2. Tighten the (4) screws (Shown below) until they
come in contact with the unit jacket top, then evenly tighten all (4) screws to secure to unit.
Fig. 8: Outdoor Top Installation
1. Shut-off main electrical power switch to heater.
2. Turn heater manual ON/OFF switch, located in
upper control panel, to the "OFF" position.
3. Shut-off gas supply and water supply to the
heater.
4. Mount drafthood on heater and attach with the 8
sheet metal screws provided. Drafthood should be
positioned with the vent sensor located on the
front left side as shown.
5. Remove plastic plug from left side of heater jacket
and install the plastic grommet provided.
6. Route flue sensor wire harness through the grommet installed in Step 5.
7. Remove door and locate wire from roll out sensor
to High Limit with the male/female connector.
8. Disconnect male/female connector and attach to
the 2 wires from drafthood vent sensor harness.
14
Fig. 9: Indoor Top Installation
15
Models 0181-0401 and 0182-0400
DRAFTHOOD
JACKET TOP PANEL
(part of the heater)
#10 SHEET METAL SCREW (3)
MOUNTING BRACKET (3)
FLUE COLLECTOR
(part of heater)
SCREW HOLE
LOCATION
3-1/4"
INNER STACK ADAPTER PANEL
2-1/2"
COMBUSTIBLE FLOOR SHIELD
(optional for indoor)
Models 0514-0824
Vent Terminal/Indoor Stack
Installation
1. Remove the louvered jacket top by removing four
(4) #10 flathead screws.
2. If originally installed, remove "Pagoda" top from
the louvered jacket top.
3. Place the inner stack adapter panel over the flue
collector inside the heater. Make sure the flanged
side of the flue opening is up.
4. Turn the stack (drafthood) upside down and set it
down bottom side up.
5. Turn the jacket top panel (removed in step 1)
upside down and place it over the stack.
6. Attach the three (3) mounting brackets to the stack
using the screws provided and the holes that are
pre-drilled in the stack. Make sure the brackets are
positioned with the flange near the top side of the
stack (see Fig. 10). Caution must be taken not to
over tighten and strip the screw threads.
Locate and assemble as shown below. Secure with
screws supplied in envelope in carton.
Fig. 11: Indoor Top Installation
Models 0962-1826
Locate and assemble as shown below. Secure with
screws supplied in envelope in carton.
7. Turn the assembled stack and jacket top, right
side up. The jacket top will be trapped between the
brackets and the top of the stack. Place the stack
over the inner adapter panel flanged hole and
lower the louvered jacket top panel back into its
original position. Reinstall the four (4) green #10
flathead screws removed in step 1 above.
Fig. 10: Indoor Top Installation
Fig. 12: Indoor Top Installation
Models 2100-4001
These models have built-in drafthoods. For proper
operation, the drafthood outlet must be connected to
the venting system.
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