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

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

WARNINGS—Pay Attention to These Terms

DANGER:

WARNING:

AUTION:

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.

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.

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

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.

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.

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.

eater

Model

Number

loor Base

Part

Number

133 001749

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

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

0133 0181 to 0514 to 0926 to 2100 to

Description Location 0401 0824 1826 4001

. 3-1/2 in. thick masonr

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

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

. 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.

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

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

Flue

Diameter

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

OUT

1-1/8

-3/4

1 NPT

44-1/8

DRAFT HOOD

INDOOR

UTDOOR

ELECT CONN

PUMP (OPTIONAL)

PUMP COVER (OPTIONAL)

14-1/2

2-1/4

COMBUSTIBLE FLOOR SHIELD

(OPTIONAL)

STACKLESS TOP

19-1/2

2-3/4

14-3/4

29-1/2

11-1/4

27-3/4

23-5/8

WATER

2-1/2

OUT

GAS

COMBUSTIBLE FLOOR SHIELD

(OPTIONAL)

11-1/8

5-1/8

1-1/8

11-3/4

ELECT CONN (J-BOX)

PUMP (OPTIONAL)

INDOOR DRAFT HOOD

19-1/2

14-1/2

32-1/2

A/2

8-1/4

Recovery

GPH*

Width

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

Dimensions (in inches)

Overall

Height

Jacket Height

Gas

Conn.

Flue

Diameter

K L

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.

ODELS 0 926-1758

MODELS 2100-4000

MODEL,

32-1/2

1-1/8

5-1/8

1-1/8

9-1/2

14-1/2

11-3/4

PUMP COVER (OPTIONAL)

PUMP (OPTIONAL)

ELECT CONN (J-BOX)

COMBUSTIBLE FLOOR SHIELD

(

OPTIONAL)

46-3/4

27-3/4

GAS

imensions (in inches)

2-3/8

9-1/4

3-5/8

idth

Gas

onn.

1 2

-1/4

Model

umber

H-0926926.0

H-10831083.0

H-11781178.0

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

PH*

076

171

Water

onns.

-1/2

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

Dimensions (in inches)

Overall Height

Gas

Conn.

Water

Conns.

Flue

Diameter

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.

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

NOTE: If louvers, grills or screens are used on the

utdoor Top

-3/8"

UTDOOR

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

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

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.

Fig. 9: Indoor Top Installation

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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