Thomas & Betts RZ405, RGM 405 User Manual

C E R T I F I E D

Installation and Operation ...........................Paragraphs 1-18 .... Pages 1-18

Optional Accessories ................................ Paragraphs 19-21 .. Pages 19-21

Check Installation and Start-Up ........................Paragraph 22 .. Pages 22-23

Index By Page No.

Belt Drive ............................................. 15

Blower Motor and Drive ...................... 15

Check/Test/Start-Up............................. 22

Clearances ................................................ 2

Combustion Air ...................................... 4

Combustion Air Proving Switch ........... 15

Concentric Adapter............................ 2, 5

Condensate Drain .......................... 14

Confined Space Installation .................. 10

Cased Cooling Coil (Model ACU)..... 2, 19

Control Location Illustration ................. 15

Dimensions ............................................. 3

Gas-Fired, Indoor, Vertical (Upflow)

APPLIES TO: Installation

Table of Contents

Index By Page No.

Discharge Plenum (Optional) ............ 2, 21

Duct Connections ................................. 12

Electrical Supply and Connections....... 14

Filter Cabinet (Optional) .................. 2, 20

Gas Piping and Pressures ..................... 13

Gas V alve .............................................. 16

General .................................................... 1

Hazard Intensity Levels ......................... 2

Ignition System..................................... 16

Inlet Base (Optional) ......................... 2, 21

Installation Codes ................................... 2

Mixing Cabinet (Optional) .............. 2, 21

Model CAUA

Power-Vented Heater

INST ALLATION FORM RZ 405 (Version B)

Obsoletes Form RGM 405 (V ersion A)

Index By Page No.

Motor Amps ......................................... 16

Mounting the Heater .............................. 2

Start-Up................................................. 22

Thermostat ........................................... 14

Uncrating and Preparation ...................... 2

Vent and Combustion Air ....................... 4

Determine Type of Vent ........................ 4

Power Vent Only Installation ......... 10-11

Separated-Combustion Installation ... 5-9

Warranty.................................................. 2

Wiring Diagrams .............................. 17-19

REFERENCES:

Operation/Maintenance/Service Manual, Form RZ 405-OMS Installation Manual for Model ACU Cooling Coil, RZ 405-CC Gas Conversion Instructions for Model CAUA, RZ 405-GC

FOR YOUR SAFETY

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 your fire department.

W ARNING: Impr oper installation, adjustment, alteration, service, or maintenance can cause property damage, injury , or death. Refer to this manual. For assistance or additional information, consult a qualified installer , service agency , or the gas supplier .

WARNING: Gas-fired appliances are not designed for use in hazardous atmospheres containing flammable vapors or combustible dust. See Hazard Levels, page 2.

Installation Manual for Optional Filter Cabinet, RZ 405-FC Installation Manual for Optional Mixing Box, RZ 405-MB Installation Instructions for Optional Inlet Base, RZ 405-IB Installation Instructions for Optional Discharge Plenum, RZ 405-DP

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

GENERAL

Installation should be done by a qualified agency in accordance with the instructions in this manual and in compliance with all codes and requirements of authorities having jurisdiction. The instructions in this manual apply to the heater model shown below.

Model Description

CAUA Gas-Fired,

Power-Vented, V ertical (Upflow) Heater

Model CAUA heaters are design-certified by the Canadian Standards Association (CSA) to ANSI Z83.6 and CGA 2.6-M96 for industrial/ commercial installations in the United States and Canada. Heaters are available for use with either natural or propane gas. The type of gas, the firing rate, and the electrical characteristics are on the unit rating plate.

A Model CAUA heater requires installation of an inlet air duct or an optional inlet air base and a supply duct or an optional discharge plenum. This heater may be installed as a separated-combustion system (taking combustion air from outside) or as a power-vented system (taking combustion air from the space where the heater is installed).

Mfg No. 164771, Page 1

GENERAL (Cont'd)

Separated-combustion units are designed to separate the air for combustion and the flue products from the environment of the building in which the unit is installed. Separated-combustion appliances are recommended for use in dust laden and some corrosive fume environments or in buildings with negative pressure (up to .15" w.c.). If installed as a separated-combustion system, the heater must be equipped with both combustion air and exhaust piping to the outdoors. All Model CAUA heaters must be vented to the outdoors.

W ARNING: Should overheating occur, or the gas supply fail to shut off, shut off the manual gas valve to the appliance before shutting off the electrical supply.

W ARNING: Do not use this appliance if any part has been under water . Immediately call a qualified service technician to inspect the appliance and replace any gas control which has been under water.

CAUTION: Do not locate the heater where it may be exposed to water spray, rain or dripping water.

HAZARD INTENSITY LEVELS

1. DANGER: Failure to comply will result in severe personal injury or death and/or property damage.

2. W ARNING: Failure to comply could r esult in severe personal injury or death and/or property damage.

3. CAUTION: Failure to comply could result in minor personal injury and/or property damage.

1. Installation Codes

These units must be installed in accordance with local building codes. In the absence of local codes, in the United States, the unit must be installed in accordance with the National Fuel Gas Code ANSI Z223.1a (latest edition). A Canadian installation must be in accordance with the CAN/CGA B149.1 and B149.2 Installation Code for Gas Burning Appliances and Equipment. These codes are available from CSA Information Services, 1-800-463-6727. Local authorities having jurisdiction should be consulted before installation is made to verify local codes and installation procedure requirements.

2. Warranty

Refer to the limited warranty information on the W arranty Card in the "Owner's Envelope".

Warranty is void if ...

a. Wiring is not in accordance with the diagram furnished with the

heater.

b. The unit is installed without proper clearance to combustible

materials.

3. Uncrating and Preparation

This unit was test operated and inspected at the factory prior to crating and was in operating condition. If the heater has incurred any damage in shipment, file a claim with the transporting agency. Check the rating plate for the gas specifications and electrical characteristics of the heater to be sure that they are compatible with the gas and electric supplies at the installation site. Read this booklet and become familiar with the installation requirements of your particular heater. If you do not have knowledge of local

Form 405, Page 2

requirements, check with the local gas company or any other local agencies who might have requirements concerning this installation. Before beginning, make preparations for necessary supplies, tools, and manpower.

Shipped-Separate Accessories

• Concentric Adapter and V ent Terminal - If the heater is installed

as a separated-combustion system, a concentric adapter assembly is required. The concentric adapter and parts are shipped in a separate carton. Be sure that the shipped-separate carton is at the installation site. See Paragraph 7A.

• Filter Cabinet - The return air filter cabinet is shipped separately

for field installation over the inlet air opening of the heater. The inlet air opening location is determined by the application. The filter cabinet can attach at the opening on either the rear, the left side, or right side of the unit. Follow the installation instructions included with the cabinet.

• Cased Cooling Coil - Model ACU cooling coils are designed for

the Model CAUA heaters. The coil cabinet is shipped separately for installation over the discharge opening of the heater.

• Mixing Cabinet - If outside air is desirable, a mixing cabinet with

dampers is available. The mixing cabinet is field attached to the rear of the unit. Check to be sure that the mixing box is the configuration ordered. Follow the installation instructions included with the shipped-separate package.

• Inlet Base - If an optional inlet base is included, follow the instruc-

tions included with the inlet base to select the location. The heater mounts on the inlet base; heater has a bottom inlet air opening.

• Discharge Plenum - The discharge plenum is shipped separately

for installation over the discharge opening of the heater. If the discharge plenum and a cased cooling coil are part of the installation,

the discharge plenum is factory attached to the cooling coil casing. Also, shipped with the heater are the parts needed to install a condensate drain (needed if installing a cooling coil). Other shipped-separate options could include a gas shutoff valve, a thermostat, a thermostat guard, and/or a vent cap. Make sure all parts are at the site before beginning installation.

4. Clearances

Unit must be installed so that the clearances in the table are provided for service and inspection and for proper spacing from combustible construction.

5. Mounting

Required Clearances

(All Sizes)

Right Side 0" (0mm) Left Side 0" (0mm) Front 36" (914mm) Rear 0" (0mm) Bottom 0" (0mm) Flue Connector 6" (152mm) Top 1" (25mm)

the Heater

Check the supporting structure to be used to verify that it has sufficient load-carrying capacity to support the weight of the unit. The heater must be level.

Approximate Net Weight (lbs)

Size 150 200 250 300 350 400 Weight (lbs) 288 300 380 394 445 460

WARNING: Unit must be level for proper operation. Do not place or add additional weight to the heater. See Hazard Levels, page 2.

Determine the position of the heater with regard to venting, combustion air, gas supply connection, electrical supply connection, and inlet air opening. Either cut out the inlet air opening (requires tin snips or aviation shears) now or when attaching ductwork or filter cabinet. Use caution when cutting the opening as the cut edges of the metal will be sharp. NOTE: If ordered with an optional inlet base, the heater is shipped with a bottom inlet air opening.

6. Dimensions

BOTTOM VIEW

Corner indicators for cutting inlet air opening.

Control Side of Hater

2

(51mm)

Figure 1 - Dimensions of Model CAUA

T op View

Control Door

Blower Door

Plenum

Opening

24-3/8

(619mm)

46-1/2

(1181mm)

22-1/4

(565mm)

C Plenum Opening

Combustion Air Cutout

150, 200 - 5 (127mm); 250, 300, 350, 400 - 6 (152mm)

Venter Outlet

150, 200, 250 5 (127mm); 300, 350, 400 6 (152mm)

2-3/8 (60mm)

Electrical (supply voltage)

Gas

6-3/8

4-1/8

(162mm)

(105mm)

Right

Rear View

Side

View

2-1/8 (54mm)

16

(406mm)

1 (25mm)

13-1/4

(337mm)

Alternate

Gas

Connection

Corner indicators for

16

(406mm)

1-1/2 (38mm)

Corner indicators for cutting inlet air opening

cutting inlet air opening

3-5/8 (92mm)

1/2 (13mm)

NOTE: Composite drawings are not proportional for all sizes.

Dimensions (inches + or - 1/8")

Size A B C D E F G H J K M N P

150 38 34-3/4 36 21 7-1/4 3-3/4 12-1/2 24 33 31 19 34 4-5/8 200 38 34-3/4 36 21 7-1/4 3-3/4 12-1/2 24 33 31 19 34 4-5/8 250 50 34-3/4 48 21 7-1/4 4-3/8 12-3/4 27-1/4 45 31 16 46 4-3/4 300 50 34-3/4 48 21 7-1/4 4-3/8 12-3/4 27-1/4 45 31 16 46 4-3/4 350 50 49-3/4 48 34 7 4-3/8 14-1/8 26-3/4 45 44 32 46 4-7/8 400 50 49-3/4 48 34 7 4-3/8 14-1/8 26-3/4 45 44 32 46 4-7/8

Dimensions (mm +or- 3)

Size A B C D E F G H J K M N P

150 965 883 914 533 184 95 318 610 838 787 483 864 117 200 965 883 914 533 184 95 318 610 838 787 483 864 117 250 1270 883 1219 533 184 111 324 692 1143 787 406 1168 121 300 1270 883 1219 533 184 111 324 692 1143 787 406 1168 121 350 1270 1238 1219 864 178 111 359 679 1143 1118 813 1168 124 400 1270 1238 1219 864 178 111 359 679 1143 1118 813 1168 124

Front View

2-1/8 (54mm)

2-1/2 (64mm)

Bottom

View

Air Opening Dimensions

Supply Air (Discharge with duct flange) C x D Inlet Air Opening (location selected by installer)

Right Side of Heater K x 16" (406mm) Left Side* of Heater K x 16" (406mm) Rear of Heater J x 16" (406mm)

Bottom of Heater M x N

*Right side is illustrated; corner indicators for opening are the same on the left side.

Mfg No. 164771, Page 3

7. V enting and Combustion Air

WARNING: The vent must be installed in accordance with national and local regulations. Failure to provide proper venting could result in death, serious injury and/or property damage. This unit must be installed with a vent to the outside of the building. Safe operation of any power-vented gas-fired equipment requires a properly operating vent system, correct provision for combustion air , and regular maintenance and inspection.

WARNING: Units installed in multiples require individual vent pipe runs and vent caps. Manifolding of vent runs is not permitted due to possible recirculation of combustion products into the building and back pressure effects on the combustion air proving switch.

Venting must be in accordance with the National Fuel Gas Code Z223.1 or CAN/CGA B149.1 and B149.2, Installation Code for Gas Burning Appliances and Equipment, and all local codes. Local requirements supersede national requirements. Combustion air for this heater may be either taken from the space or may be ducted from the outside using the

concentric adapter combustion air/vent system. Flue products must always be vented to the outdoors. Installation should be done by a qualified agency in accordance with these instructions. The qualified service agency installing the vent or vent/combustion air system is responsible for the installation.

The venting or venting/combustion air systems illustrated in this manual are the only ones approved for a Model CAUA heater. However , since more than one system is approved and requirements vary depending on the type of installation, the first step must be deciding which vent or vent/combustion air system is going to be installed. Review the following matrix of vent types and installation requirements. If there is any doubt as to what type of vent is required, contact the equipment distributor before beginning installation.

Hazards of Chlorines - The presence of chlorine vapors in the combustion air of gas-fired heating equipment presents a potential corrosion hazard. Chlorine will, when exposed to flame, precipitate from the compound, usually freon or degreaser vapors, and go into solution with any condensation that is present in the heat exchanger or associated parts. The result is hydrochloric acid which readily attacks all metals including 300 grade stainless steel.

Care should be taken to separate these vapors from the combustion process. This may be done by installing a separated combustion system and/or wise location of the furnace with regard to exhausters or prevailing wind direction. Chlorine is heavier than air. This fact should be kept in mind when determining installation locations of heating equipment and building exhaust systems.

STEP 1 - Decide which V enting System to Install:

Type of Installation

COMMERCIAL/ INDUS TRIAL (Harmonized ANSI Z83.8-1996 and Canadian Standard CAN/CGA 2.6M96)

Type of Ve nt System

(Description/Instructions)

Separated-Com bustion

(uses a po wer venter to duct combustion air from o utdoors and exhaust flue products to the outdoors) -

Instructions in Section 7A)

Power-Vented

venter to draw combustion air from the indoor space and exhaust flue products to the outdoors) -

Instructions in Section 7B)

(follow

(uses a power

(follow

Ve nt Configuration/Options Required

Horizontal Vent / Option CC6

(includes concentric adapter box, exhaust terminal, and inl et air guard)

Vertical Vent / Option CC2

(inc ludes concentric adapter box, exhaus t terminal, and co mbustion air inlet)

Horizontal Vent / Option CC1

Vent Cap or field-sup plied equivalent (see page 11)

At least 1/2 of the Equivalent Vent Length is Ver tical / Option

Vent Cap or field-supplied

CC1

equivalent (see page 11)

Type of VENT Pi pe * Re quired

Use either vent pipe approved for a Category III appliance OR single-wall, 26-gauge or heavier galvanized (or a mat erial of equivalent durability and corrosion resistance) vent pipe.

Use either vent pipe approved for a Category III appliance OR appropriately sealed 26-gauge galvanized steel or equivalent single-wall pipe. If local co de requires, the term inal section may be double-wall pipe with a single-wall vent run.

Vent pipe listed above for a horizontal powervented s ystem may be used, OR vent pipe approved for a Cat egory I heater may be used. Single-wall pipe or double-wall (Type B) vent pipe are suit able for use with a Category I heater.

If local code requires, the terminal section may be double-wall pipe with a single-wall vent run.

STEP 2 - Follow the instructions that apply to the type of vent being

installed

• Separated-Combustion -- requires air inlet pipe, exhaust vent pipe, and concentric adapter kit (Option CC2 or CC6)

Using required pipe (See T able above), FOLLOW INSTRUCTIONS IN SECTION 7A

• Power Vent -- requires vent pipe and vent cap (Option CC1 or field-supplied Type L Breidert Air-x-hauster

cap)

Using required pipe (See T able above), FOLLOW INSTRUCTIONS IN SECTION 7B

Form 405, Page 4

or equivalent vent

7A. Venting and Combustion Air Requirements for Separated-Combustion

Installation (must use either Option CC2 or CC6)

Specific Requirements (read all before installing)

Comply with the specific requirements and instructions in the following paragraphs and illustrations.

1. Combustion Air Inlet

Diameter is 5" for Sizes 150 and 200 and 6" for Sizes 250, 300,

Figure 2 - Attach Combustion Air Pipe

350, and 400. Use tin snips or aviation shears to cut out the hole in the top of the heater (See Figure 2). Insert the pipe through the hole and attach it to the collar inside the heater. Seal the joint. (Larger size heaters have oval collars. If the collar is oval, form the pipe to fit the collar.)

2. Venter Outlet

The venter outlet size is 5" for Sizes 150, 200, and 250 and 6" for Sizes 300, 350, and 400. A minimum length of 12" of straight pipe is required at the venter outlet.

3. Concentric Adapter

If installed as a separated-combustion unit, a concentric adapter is required.

• Option CC2 and CC6 - The concentric adapter is a

metal box that attaches to the inside of the building. See the illustrations and dimenstions in Figures 3A and 3B. Option CC6 is horizontal; Option CC2 is vertical. (Option kits also include a vent terminal and combustion air inlet or guard.)

Figure 3A - Concentric Adapter Assembly in Options CC2 and CC6

1) Remove door panel.

2) Cut out the hole.

3) Slide pipe down through hole.

4) If collar is oval, form pipe to fit. Attach pipe to collar with

Use tin snips

to cut out

hole for

combustion

air pipe

Collar for

connecting

combustion air

pipe

sheetmetal screws and seal the connection.

V enter Outlet

View of Heater Connection Side View of V ent Terminal Connection Side

Collar for

connecting

indoor portion

of the

combustion

air pipe

Install rubber seal for vent pipe

Collar for outside portion of the

combustion air pipe (vent pipe

extends through the box

internally concentric to the

outside portion of the combustion

air pipe)

Figure 3B - Concentric Adapter Box Dimensions - inches (mm)

CAUA 150,200 250,300,350,400

A 5 (127) 6 (152) B 4 (102) 5 (127) C 4 (102) 4 (102) D 7-1/2 (191) 7-1/2 E 5 (127) 5 (127) F 4 (102) 5 (127) G 16-1/2 (419) 16-1/2 (419) H 8 (203) 10 (254)

J 6 (152) 8 (203)

J = Diameter of the

Collar for attaching the

"Outside" Portion of the

Combustion Air Pipe

Top View of the Concentric Adapter

Box Showing Air Flow

= Combustion Air Flow = Exhaust (Vent) Gas Flow

Field-supplied vent pipe passes through the rubber seal on the concentric adapter box, extending out both sides of the box

A = Diameter of the Collar for attaching the inside Combustion Air Pipe from the Heater

2 (51mm)

6 (152mm)

2 (51mm)

End View

Side View - Side of the

Adapter Box that Connects

to the Heater

Mfg No. 164771, Page 5

Reducer

Airflow

7. V enting and Combustion Air (cont'd)

7A. Venting and Combustion Air Requirements for Separated-Combustion

Installation (must use either Option CC2 or CC6) (cont'd)

4. Pipe Diameter and Length

Maximum Pipe Length from Heater to Concentric Adapter -

minimum length is five feet (1524mm)

Model Pipe Diameter Maximum 90° Elbow 45° Elbow CAUA Vent Inlet Air Length Equals* Equals* 150-200 5" 5" 40 ft 5 ft 2.5 ft

12.2 M 1524 mm 762 mm

250 5" 6" 50 ft 5 ft 2.5 ft

15.2 M 1524 mm 762 mm

300-400 6" 6" 50 ft 5 ft 2.5 ft

15.2 M 1524 mm 762 mm

*Reduce maximum length by this amount for each elbow.

Concentric Pipes (the vent pipe runs concentric through the outdoor portion of the combustion air pipe) - Sizes 150 and 200 require

a 6" diameter combustion air pipe for outdoor portion and a 4" diameter vent pipe through the concentric adapter to the terminal; Sizes 250-400 require an 8" diameter combustion air pipe for the outdoor portion and a 5" diameter vent pipe through the concentric adapter to the terminal. Length depends on building construction; specific requirements are included with the concentric adapter kit instructions.

5. Joints

Determined by type of pipe - Provide field-supplied vent pipe as specified in the Table on page 4.

• If using single wall, 26-gauge or heavier galvanized pipe, secure

slip-fit connections using sheet metal screws or rivets. Seal all joints. Seal combustion air pipe with pressure sensitive tape ordinarily used for warm-air ductwork. Seal flue exhaust pipe with

Instructions and Requirements for Installing Option CC6

Option CC6 Package includes:

Qty Description 150, 250, 300,

200 350, 400

1 Complete Horizontal Vent Kit 157158 82131

(Same as Option CC6)

1 Concentric Box Assembly 155392 68404

(See Figures 3A and 3B)

1 Screened 155096 53316

Exhaust Assy

1 Inlet 151755 124940

Guard

4 #10-16x1/2" lg Screws (to 37661 37661

attach the inlet guard)

1 Rubber seal for vent pipe opening 164492 164493

in concentric adapter

1 Tube of high temperature (450°F) 53335 53335

silicone sealant

Field-supplied installation requirements:

• Thimble (a thimble is not required if wall is of non-combustible construction)

• Flashing

• Vent pipes (see requirements on pages 4 and 6)

• Combustion air pipes (see requirements on pages 4 and 6)

Form 405, Page 6

either tape suitable for 550°F (such as Option FA1, P/N 98266) or high-temperature (450°F) silicone sealant.

• If using Category III vent pipe, follow the pipe manufacturer's in-

structions for joining pipe sections.

In Concentric Pipes (outdoor portion) from Concentric Adapter Box to Air Inlet and Vent Terminal - Follow the installation instruc-

tions for the specific option (CC6 for horizontal vent; CC2 for vertical vent).

Joints Requiring Taper-type Connections (See Figure 4) - When the diameter of the pipe in the vent pipe run is different from the vent pipe in the terminal section, the joint must be made with a taper-type pipe connector. Install the connector no more than 6" (152mm) from the concentric adapter box. A 5" to 4" reducer is required in the vent pipe on Sizes 150 - 200; a 6" to 5" reducer is required on Sizes 300 - 400.

Figure 4 - When joining different pipe diameters, use tapertype pipe connectors

Taper-type Connector

Either collar or smaller diameter pipe

Secure joints with sheetmetal screws and seal.

6. Support

Support horizontal runs every six feet (1829mm); do not rely on the heater or concentric adapter for support of either horizontal or vertical pipes.

7. Clearance

Clearance from the vent pipe to combustibles is 6" (152mm). Do not enclose the vent pipe.

Horizontal

• Mounting brackets for concentric adapter box (or box may be mounted flush, depending on building construction)

• T aper-type reducers as required (see requirements above)

Installation Instructions for Option CC6

1. Determine the location on the outside wall for the vent terminal

(Applies to all horizontal vent kits). In most applications, the terminal

would be on a level with the heater mounting height. Allow 1/4" per foot downward pitch toward the terminal for draining of condensation. The distance of the termination of the horizontal vent from adjacent public walkways, adjacent buildings, openable windows, and building openings must be in accordance with local codes or, in the absence of local codes, must conform with National Fuel Gas Code. Local codes supersede all provisions in these instructions and in the National Fuel Gas Code. Minimum clearances for the horizontal vent terminal are as shown in the table on page 7.

Products of combustion can cause discoloration of some building finishes and deterioration of masonry materials. Applying a clear silicone sealant that is normally used to protect concrete driveways can protect masonry materials. If discoloration is an esthetic problem, relocate the vent or install a vertical vent.

WARNING: All vent terminals must be positioned or located away from fresh air intakes, doors and windows to preclude combustion products from entering occupied space. See Hazard Levels, page 2.

Vent Terminal/Combustion Air Inlet

Minimum Clearances for Vent

Structure

Forced air inlet within 10 ft (3.1m) Combustion air inlet of another appliance Door, window, or gravity air inlet (any bu i ld ing ope n i ng)

Electric meter, gas meter * and relief equipment

Gas regulator * 3 ft (0.9m) Adjoining bu ilding or parap et 6 ft (1.8m)

Adjacent public walkway s 7 ft (2.1m) above Grade (ground level) 7 ft (2.1m) abov e

Termi nation Location (all directions unless specified)

3 ft (0.9m) above

6 ft (1.8m)

4 ft (1.2m) horizontally 4 ft (1.2m) below 1 ft (30cm) above 4 ft (1.2m) horizontally

*Do not terminate th e vent directly above a gas meter or service regulator.

2. Prepare clearance hole through the outside wall for a 6" diameter pipe (Size 150 or 200) or an 8" diameter pipe (Size 250, 300, 350, or 400). Outside wall construction thickness should be between 1" (25mm) minimum and 30" (762mm) maximum. The larger diameter combustion air pipe serves as clearance for the exhaust pipe on non-combustible construction. A thimble may or may not be required depending on wall construction and/or local codes.

3. Prepare the concentric adapter box. 3a) Determine whether field-supplied brackets are

required. The box must be positioned so that the

distance from the outside of the wall to the box is a minimum of 12" (305mm). Maximum distance is 60" (1524mm). If brackets are used, box should be angled slightly to allow for downward pitch of pipes. If used, attach brackets securely; do not leave any unsealed holes in the adapter box. If brackets are not used, when the box is installed, position it tight against the wall.

3b) Install the rubber seal and the vent pipe. Locate the

vent pipe opening (no collar) and place the rubber seal around and over the edge of the metal. Determine the length of the section of vent pipe by adding the requirements. On the heater side of all Sizes except CAUA 250, the vent pipe must extend no more than 6" (152mm) (length limit does not apply to Size 250 because the pipe diameter does not change); plus 6" (152mm) through the box; plus bracket length; plus the width of the wall; plus a minimum of 18" (457mm)

Worksheet - Determine Length of Vent Pipe through the Box

inches mm

Heater Side (max if + 6 152 diameter changes) Width of Box + 6 152 Bracket Length + __ ___ Width of Wall + __ ___ Terminal Side (min) + 18 457

Length of Pipe =

on the outside (if the inlet air pipe extends recommended 2" (51mm) beyond the wall). Lubricate the seal and pipe with liquid soap or a rubber lubricant. (Installation Tip:

Spray cooking oil works well as a lubricant for this task.) Being sure the pipe is in the proper flow direction, slide the end through the box and push it out through the rubber seal. Push evenly using caution not to displace the seal from its position on the edge of the hole. If the rubber seal moves, slide the pipe back slightly, re-position the seal, and slide the pipe through again. Position the vent pipe so that it will extend a minimum of 16" past the end of the combustion air pipe. See

Combustion air pipe

Seal the seam in the vent pipe.

Vent Flow

16 (406mm) minimum

Concentric Adapter Box

Field-supplied

mounting brackets

Combustion

Air Flow

2 (51mm)

approx plus

wall thickenss

Vent Pipe - when a taper-type

the vent pipe; the connection

Collar for combustion air pipe.

Install rubber seal in

vent pipe opening.

reducer is required in

must be no more than 6

(152mm) from the box.

Figure 5A. On all Sizes except 250, no more than 6" (152mm) of vent pipe should extend out the heater side. Any time the pipe is re-positioned, re-check the seal to be sure that it has not rolled. Adjust the pipe and seal until the pipe is the correct length on each side of the box and the seal is over the edge of the hole and tight to the entire circumference of the pipe.

3c) Attach the outside portion of the combustion air pipe to the box. Determine

the length by measuring the bracket length (if brackets are used), plus the wall thickness, plus 2" (51 mm). The inlet pipe should extend beyond the outside wall approximately 2" (51mm). Attach the inlet air pipe to the collar of the concentric adapter with sheetmetal screws being careful not to penetrate the vent pipe.

4. Attach the concentric adapter box to the wall. Insert the vent pipe and combustion air pipe through the wall. Push the concentric adapter box flush against the inside wall or attach to the wall with the field-supplied brackets. Caulk or flash inlet air pipe on the outside wall. Flashing is

Flash or caulk the inlet air pipe on the outside wall

field supplied.

5. Slide the inlet guard over the end of the vent pipe

and position it on the end of the combustion air pipe. See Figure 5B. Attach the guard to the inlet air pipe with the

four 1/2" lg screws provided.

6. Position the vent cap on the end of the vent pipe. Align the cap so that its baffle strips are positioned on the horizontal and vertical centerlines (See Figure 5C). Attach the exhaust cap to the vent pipe with sheetmetal screws.

First, attach the inlet air guard; Second, attach the exhaust cap

Inlet Air Guard

IMPORTANT: Install exhaust cap with baffles

positioned on horizontal and vertical centerlines as illustrated.

7. Horizontal vent terminal/combustion air inlet Option CC6 is installed and ready for connection to the heater.

8. Connect the Concentric Adapter Box to the Heater - Use the pipe specified and joints required for type of pipe. If collar or opening at the heater or adapter are different diameters from the pipe (use only diameters allowed on page 6), make joint connection with field-supplied taper-type reducer or enlarger. A minimum of 12" (305 mm) of straight pipe is required at the venter outlet. Due to the high temperature, do not enclose the exhaust pipe or place pipe closer than 6" (152 mm) to combustible material. Installation of the horizontal vent and combustion air system on your separatedcombustion unit is complete. Refer to Figure 5D and verify that all installation requirements are met. Continue to Paragraph 8.

Mfg No. 164771, Page 7

7. V enting and Combustion Air (cont'd)

7A. Venting and Combustion Air Requirements for Separated-Combustion

Installation (must use either Option CC2 or CC6) (cont'd)

Figure 5D - Installation of a T ypical SeparatedCombustion Unit with Horizontal V ent and Combustion Air Pipes (Option CC6)

Building Overhang

Side View

Vent Pipe

- PITCH TO

DRAIN

6-15/16 (176mm)

16(406mm)

minimum

24(610mm)

minimum

Wall

Concentric Adapter Box

Combustion Air Pipe (PITCH TO DRAIN)

6ft (1829mm)

Adjoining Building

minimum

3 ft (914mm)

minimum

3 ft (914mm)

Thimble

IMPORTANT NOTE: Exhaust cap must be installed so the baffles are positioned on horizontal and vertical centerlines.

minimum

Building Projection

Inlet Air

Guard

Screened

Exhaust

Cap

60 (1524mm) maximum

12 (305mm) minimum

Wall

"Through-the-W all" View of a typical

installation of a horizontal vent/inlet air

terminal and concentric adapter

Top View

Concentric Adapter

Seal Joints

Combustion Air Pipe

Seal joints; see Require-

ment No. 5 on page 6.

Vent (Flue Exhaust) Pipe

Maximum Length (See Requirement

No. 4 on page 6.)

Minimum length is 5 ft (1.5M)

(Option CC6)

Instructions and Requirements for Installing a (Requires Concentric Adapter Kit, Option CC2)

V ertical V ent T erminal/Combustion Air Package (Option CC2) includes:

Qty Description 150, 250,300,

200 350,400

1 Complete Vertical Vent Kit 157156 54444

(Same as Option CC2)

1 Concentric Box Assembly 155392 68404 1 Exhaust 155631 53326

T erminal

1 Combustion 155635 53330

Air Inlet

1 Rubber seal for vent pipe 164492 164493

opening in concentric adapter

1 Tube of High Temperature 53335 53335

(450°F) Silicone Sealant

Field-supplied installation requirements:

• Thimble (a thimble is not required if wall is of noncombustible construction)

• Flashing

• Vent pipes (see requirements on pages 4 and 6)

• Combustion air pipes (see requirements, pages 4 and 6)

• Mounting brackets for concentric adapter box (or box

may be mounted flush, depending on building construction)

• Taper-type reducers as required (see requirements on page 6)

Form 405, Page 8

Installation Instructions for Option CC2

1. Determine the location for the vent terminal on the roof, allowing room for the concentric adapter box inside. A thimble may or may not be required depending on building construction and/or local codes. Prepare a hole through the roof for the combustion air pipe (Sizes 150 and 200, pipe is 6"; Sizes 250-400, pipe is 8"). The air inlet pipe must be flashed or sealed to the roof. Flashing is to be supplied by the installer as required by roof construction and/or codes.

WARNING: All vent terminals must be positioned or located away from fresh air intakes, doors and windows to preclude combustion products from entering occupied space. See Hazard Levels, Page 2.

2. Prepare the concentric adapter box. 2a) Determine whether field-supplied brackets are required. If used, attach

brackets securely; do not leave any unsealed holes in the adapter box. If brackets are not used, when installed, the box should be tight against the roof.

2b) Install the rubber seal and the

vent pipe. Locate the vent pipe open-

ing and place the rubber seal around and over the edge of the metal. Determine the length of the section of vent pipe by adding the requirements. On the heater side of all Sizes except CAUA 250, the vent pipe must extend no more than 6" (152mm) (length limit does not apply to Size 250 be-

Vertical

Vent Terminal/Combustion Air Inlet

W orksheet - Determine Length of Vent Pipe through the Box

inches mm

Heater Side (max if + 6 152 diameter changes) Width of Box + 6 152 Bracket Length + __ ___ Width of Roof + __ ___ Inlet Pipe Height + __ ___ Terminal Side (min) + 22 559

Length of Pipe =

+ 16 hidden pages