Laars FT Series Installation And Operation Instructions Manual

Installation and Operation Instructions Document 1318G

Installation and Operation

Instructions for

THE FT

SERIES

Wall-Mounted, Modulating

Gas, Condensing, Combination Boiler

Model FTCW

140,000 BTU/hr

199,000 BTU/hr

• Natural Gas (NG) - Factory Configuration

• Propane Gas (LP) - Field-Convertible

FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in hot water boiler and heater installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty.

WARNING

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

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

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 nearby 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 gas supplier.

AVERTISSEMENT

Assurez-vous de bien suivres les instructions données dans cette notice pour réduire au minimum le risque d’incendie ou d’explosion ou pour éviter tout dommage matériel, toute blessure ou la mort.

Ne pas entreposer ni utiliser d’essence ou ni d’autres vapeurs ou liquides inflammables dans le à proximité de cet appareil ou de tout autre appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE

GAZ:

• Ne pas tenter d’allumer d’appareils.

• Ne touchez à aucun interrupteur. Ne pas vous servir des téléphones dans le bâtiment où vous vous trovez.

• Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions du fournisseur.

• Si vous ne pouvez rejoindre le fournisseur de gaz, appelez le sservice des incendies.

L’installation et l’entretien doivent être assurés par un installateur ou un service d’entretien qualifié ou par le fournisseur de gaz.

TABLE OF CONTENTS

SECTION 1 Product Accessories

1.1 Introduction ..........................................................

3

1.2 Included with the Unit .........................................

3

SECTION 2 Product Characteristics

2.1 Model Nomenclature (model number) .................

5

2.2 Specifications ......................................................

6

2.3 Dimensions .........................................................

8

2.4 Names of Components ......................................

10

2.5 Product Flow Paths and Characteristics ............

12

2.5.1 Central Heating flow.. .......................................

12

2.6 Product Flow Paths and Characteristics ............

13

2.6.1 Domestic Hot Water flow. . ................................

13

SECTION 3 Safety Regulations

3.1 Safety Symbols ..................................................

14

3.2 Safety Precautions and Proper Use ..................

16

4.15.5 Zoning with circulation pumps ...........................

43

4.16 Pressure Relief Valve ........................................

44

4.17 Disposal of Condensate ....................................

45

4.18 DHW Flow Restrictors ......................................

46

4.19 Electrical Wiring Connections ............................

47

4.20 DIP Switches .....................................................

48

4.21 Control Board, Electrical Diagram ....................

49

4.22 Ladder Diagram .................................................

50

4.23 Electrical Connections .......................................

51

SECTION 5 Control Display and Operation

5.1 Control Dial and Buttons ....................................

53

5.2 LCD Overview ..................................................

54

5.3 Operating Mode .................................................

55

5.4 Status Display Mode ..........................................

56

5.5 DHW Set Point Change Mode ..........................

57

5.6 CH Set Point Change Mode ..............................

58

5.7 Storage Mode ....................................................

58

5.8 Installer Parameters ..........................................

59

5.9 Outdoor Reset Adjustment ................................

61

5.10 External Set Point Temperature Control ............

61

5.11 Error Mode .........................................................

62

SECTION 4 Installation

4.1 Location and Clearances ...................................

18

4.2 Wall Mount Bracket ............................................

19

4.3 Combustion Air ..................................................

20

4.3.1 Combustion Air from Room ...............................

20

4.3.2 Ducted Combustion Air ......................................

20

4.4 Venting (Exhaust) ..............................................

22

4.5 General Location Guideline ...............................

23

4.6 Locations for Vent Pipe Terminator ....................

24

4.6.1 Direct Venting Clearances ................................

24

4.6.2 Venting Requirements in the

Commonwealth of Massachusetts .....................

25

4.7 Common Vent Test ............................................

26

4.8 Air Supply and Vent Connections ......................

27

4.8.1 Vent / Air Pipe Lengths ......................................

27

4.8.2 Indoor Combustion Air .......................................

28

4.9 Vent / Air Pipe Termination.................................

28

4.10 Gas Supply and Piping ......................................

31

4.11 Gas Supply Pressure .........................................

34

4.12 Adjusting Combustion ........................................

35

4.13 High Altitude Installations. .................................

36

4.14 Natural Gas to Propane Conversion ..................

37

4.15 Plumbing Guidelines

.......................................41

4.15.1 External Plumbing and

Water Connection Guidelines

............................

41

4.15.2 Applicable Backflow Preventer ..........................

41

4.15.3 Diaphragm type Expansion tank ........................

41

4.15.4 Zoning with zone valves ....................................

42

SECTION 6 Error Codes

6.1 Error Code Tables .............................................

63

6.2 Fault Tree Analysis ...........................................

66

SECTION 7 Trouble Shooting

7.1 Diagnostics ........................................................

68

7.2 Suggested Corrective Actions ...........................

69

SECTION 8 Maintenance

8.1 Annual startup & general maintenance .............

71

8.2 Flushing the Combination Boiler ........................

73

8.3 Draining and Cleaning ......................................

74

8.4 Freeze Protection ..............................................

74

SECTION 9 Installation Check

9.1 Quick View .........................................................

75

9.2 Final Check Lists ...............................................

76

SECTION 10 Parts List and Illustrations

10.1 FT 140 ...............................................................

79

10.2 FT 199 ...............................................................

85

The FT Series Wall Mounted, Combination Boiler

Page 3

SECTION 1 Product Accessories

1.1 Introduction

This manual provides information necessary for the installation, operation, and maintenance of the FT Series

Wall Mounted, Combination Boiler . All application and installation procedures must be read and reviewed completely before proceeding with the installation. Consult the factory, or your local factory representative, with any problems or questions regarding this equipment. Experience has shown that most operating problems are caused by improper installation.

All installations must be made in accordance with

1) American National Standard Z223.1/NFPA54-Latest Edition

“National Fuel Gas Code” or

2) CSA B149.1 “Natural Gas and Propane Installation Code” and with the requirement of the local utility or other authorities having jurisdiction. Such applicable requirements take precedence over the general instructions contained herein.

All electrical wiring is to be done in accordance with the local codes, or in the absence of local codes, with: 1) The

National Electrical Code ANSI/NFPA No. 70-latest Edition, or

2) CSA STD. C22.1 “Canadian Electrical Code - Part 1”. This appliance must be electrically grounded in accordance with these codes.

1.2 Included with the Unit

Item Description

Qty

Wall Mounted,

Combination Boiler

FTCW140 / 199

1

Installation Instructions and

User’s Manual

THE FT THE

FT

1

Page 4

1.2 Included with the Unit

(continued)

Items Descriptions

Condensate Hose

Wall Mount Bracket

2 types of Wall Anchors

Pressure Relief Valve

(CH LINE 3/4˝

30psi)

Model: CASH ACME F-82

3” Mesh Screens

O-Ring and Gasket Kit

4

Outdoor Sensor with screws and anchors

4.5 GPM Flow Restrictor

(dark blue)

Propane Conversion Orifice

FTCW

140

*

FTCW

199

N/A

*

A 3.2 GPM Flow Restrictor (white) has been factory installed. See Section 4.17

Auto Fill Valve and Backflow Preventer Valves are NOT included (Field Supplied).

FT1894

1

Qty

1

4

1

2

1

1

1

1


Page 5

SECTION 2 Product Characteristics

2.1

Model Nomenclature (model number)

The Model Nomenclature is shown on your Rating Plate and consists of a series of letters and numbers

( Nomenclature

) that further identifies the characteristics of your FT.

1

M

2 3 4

F T C

SERIES

FT C Combination

5 6 7 8

W

CONFIG

W - Wall Hung

SIZE

MBTU/h

1 4 0

1 9 9

9

FUEL

N - Natural

P - Propane

10

A

11

1

ALTITUDE

A 0 -10,000 Feet

REVISION

1 First

12

X

OPTIONS

X -

Standard

13

N

PUMP

N - with Pump

MODEL NUMBER

Page 6

2.2

Specifications

Model Name

Gas Input Rate

Hot Water Capacity

Installation

Flue System

Vent Run

Gas Supply Pressure

MAX

MIN

35°F

Rise

45°F

Rise

77°F

Rise

NG

LP

FTCW

140

140,000 Btu/h

28,000 Btu/h

7.1 GPM

5.5 GPM

3.2 GPM

Indoor / Wall hung type

Sealed Combustion Direct / Single Vent / Concentric Vent

2˝(50ft) , 3˝(100ft) Schedule 40 CPVC, PP, PVC

3.5˝ WC to 10.5˝ WC

8.0˝ WC to 13˝ WC

Manifold Pressure

Gas type

Vent size

Max Fire

Min Fire

NG

2˝ or 3˝ VENT

-0.216

” WC

0.002

” WC

120V 60Hz / 4A

LP

2˝ or 3˝ VENT

-0.216

” WC

0.079

” WC

Power Supply

Main Supply

Maximum Power

Consumption

Ignition System

Burner System

Gas Valve System

Minimum Flow Rate

Dimensions

Shipping Weight

Sub Heat Exchanger Water Capacity(DHW)

160W

Direct Electronic Ignition / Automatic Flame Sensing

Single Orifice Premixed Fuel Modulation

Combination modulating (Current proportional)

0.5 GPM

W17.25˝ - H29.0˝ - D15.5˝

111 lbs (50 kg)

Under 1 Gallon

Main Controller / Control Panel

Gas Inlet

NGTX-900CP / P-920C

Domestic Hot Water Pressure, DHW

Central Heat Water Pressure, CH

Connection Sizes

Cold Water Inlet / Hot Water

Outlet

(CH) Space Heating Supply/Re

turn

Min 15 ~ Max 150 PSI

Min 15 ~ Max 30 PSI

3/4˝ NPT

1˝ NPT

3/4˝ NPT

Materials

Safety Devices

Casing

Heat Exchanger

Cold Rolled Carbon Steel

Primary Heat Exchanger : Stainless Steel

Sub Heat Exchanger : Stainless Steel

Flame Rod, Overheat Cut Off Device, Gas Valve Opera

tion Detector, Exhaust Temperature High Limit Switch,

Water Temperature High Limit Switch


Page 7

2.2 Specifications (continued)

Model Name

Gas Input Rate

Hot Water Capacity

Installation

Flue System

Vent Run

Gas Supply Pressure

Manifold Pressure

MAX

MIN

35°F

Rise

45°F

Rise

77°F

Rise

NG

LP

Gas type

Vent size

Max Fire

FTCW

199

199,000 Btu/h

19,900 Btu/h

9.88 GPM

7.7 GPM

4.8 GPM

Indoor / Wall hung type

Sealed Combustion Direct / Single Vent / Concentric Vent

2˝(50ft) , 3˝(100ft) Schedule 40 CPVC, PP, PVC

3.5˝ WC to 10.5˝ WC

8.0˝ WC to 13˝ WC

NG LP

2˝ VENT 3˝ VENT

-0.314

”WC

-0.015

”WC

120V 60Hz / 4A

-0.173

”WC

-0.015

”WC

Power Supply

Min Fire

Main Supply

Maximum Power

Consumption

Ignition System

Burner System

Gas Valve System

Minimum Flow Rate

Dimensions

Shipping Weight

Sub Heat Exchanger Water Capacity(DHW)

160W

Direct Electronic Ignition / Automatic Flame Sensing

Single Orifice Premixed Fuel Modulation

Combination modulating (Current proportional)

0.5 GPM

W19.6” - H32.0” - D16.3”

130 lbs (59 kg)

Under 1 Gallon

Main Controller / Control Panel

Domestic Hot Water Pressure, DHW

NGTX-900CP / P-920C

Min 15 ~ Max 150 PSI

Min 15 ~ Max 30 PSI

Central Heat Water Pressure, CH

Connection Sizes

Cold Water Inlet / Hot Water

Outlet

(CH) Space Heating Supply/Re

turn

3/4˝ NPT

1˝ NPT

Gas Inlet

3/4˝ NPT

Materials

Safety Devices

Casing

Heat Exchanger

Cold Rolled Carbon Steel

Primary Heat Exchanger : Stainless Steel

Sub Heat Exchanger : Stainless Steel

Flame Rod, Overheat Cut Off Device, Gas Valve Opera

tion Detector, Exhaust Temperature High Limit Switch,

Water Temperature High Limit Switch

Page 8

2.3

Dimensions FTCW

140

Air Intake

Vent

Description

D

E

F

G

H

A

B

C

‘DHW’ Outlet

Air Intake collar

Vent Pipe Collar

‘CH’ Supply

‘CH’ Return

‘DHW’ Inlet

Gas Inlet

Condensate Line

Diameter

3"

3"

1" NPT

1” NPT

3/4” NPT

3/4” NPT

3/4” NPT

1/2" NPT


2.3 Dimensions

FTCW

199

Air Intake

Vent

Page 9

Description

D

E

F

G

H

A

B

C

‘DHW’ Outlet

Air Intake collar

Vent Pipe Collar

‘CH’ Supply

‘CH’ Return

‘DHW’ Inlet

Gas Inlet

Condensate Line

Diameter

3"

3"

1" NPT

1” NPT

3/4” NPT

3/4” NPT

3/4” NPT

1/2" NPT

Page 10

2.4

Names of Components

FTCW140

30

2

3

#

1

4

5

6

Name of Component

Air Vent (air eliminator)


Air Intake Collar

Air Gas Mixing Pipe

Gas Valve

DHW Water Tank

7 Main PCB

8

9

Manual Power Switch (ON / OFF)

Recirculation Pump DHW / CH Primary Pump

10

'CH' Supply Connection

11

'CH' Return Connection

12 CH Pressure Gauge

13 DHW Outlet Connection

14 Gas Inlet Connection

15

DHW Inlet Connection (filter and flow restrictor)

# Name of Component

16 Condensate Connection

17 Condensate Trap

18

Air Pressure Switch (condensate)

19

Mixing Valve

20

Terminal Block

21 Control Panel and Display

22

Heat Exchanger

23 Ignition Trans

24

Flame Detecting Sensor

25 Burner Case

26

BLDC Fan (Blower)

27

Vent Pipe

28

Air Pressure Switch

29

Vent Pipe Collar

30

Sight Glass


FTCW199

Page 11

#

1

2

3

4

5

6

Name of Component

Air Vent (air eliminator)


Air Intake Collar

Gas Valve

Air Gas Mixing Pipe

DHW Water Tank

7 Main PCB

8

9

Manual Power Switch (ON / OFF)

Recirculation Pump DHW / CH Primary Pump

10

'CH' Supply Connection

11

'CH' Return Connection

12 CH Pressure Gauge

13 DHW Outlet Connection

14

Gas Inlet Adapter

15 DHW Inlet Connection (filter and flow restrictor)

# Name of Component

16 Condensate Connection

17 Condensate Trap

18

Air Pressure Switch (condensate)

19

Mixing Valve

20

Terminal Block

21 Control Panel and Display

22

Heat Exchanger

23 Ignition Trans

24

Flame Detecting Sensor

25 Burner Case

26

BLDC Fan (Blower)

27

Vent Pipe

28

Air Pressure Sensor

29

Vent Pipe Collar

30

Sight Glass

Page 12

2.5 Product Flow Paths and Characteristics

2.5.1

Central Heating flow. Combination Boiler Heating Mode.

Water in the heating pipe is used for space heating.

FTCW140

Combustion

Air

Vent

FTCW199

Combustion

Air

Combustion

Air

Vent

CH Supply

CH Return

DHW Supply DHW Return


2.6 Product Flow Paths and Characteristics

2.6.1

Domestic Hot Water flow. Combination Boiler Domestic Hot Water Mode.

Cold water passes through the exchanger and is heated via a mini indirect tank.

The domestic hot water (DHW) is provided on demand.

FTCW140

Air

Vent

Vent

FTCW199

Combustion

Air

Page 13

Hydronic Supply

Water Inlet

Page 14

SECTION 3 Safety Regulations

3.1

Safety Symbols

WARNING

To avoid product damage, personal injury, or even possible death, carefully read, understand, and follow all the instructions in the Installation and

Operation manual before installation, operation and service the Boiler.

Manufacturer cannot anticipate every circumstance that might involve a potential hazard. Therefore, all possible incidents are not included in our warnings. Proper installation, operation, and service are your responsibility.

You must make sure that the operation and settings of the Boiler are safe for you and for others.

This manual provides Safety Symbols. When the user fails to adhere to the following requirement, it may cause death, serious injury, and substantial property damage.

For safety symbols, ‘DANGER’, ‘WARNING’,

CAUTION’ are indicated and the definitions for these terms are as follow:

DANGER

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

This signal word is limited to the most extreme situations.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

WARNING

WARNING

Cancer and Reproductive Harm. www.P65WARNINGS.CA.GOV.

as required by the state of California Proposition 65.

WARNING

FOR YOUR SAFETY READ BEFORE

OPERATING

If you do not follow these instructions exactly, a fire or explosion could result causing property damage, personal injury or loss of life.

A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.

B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electric 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.

C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

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

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

It is also used to alert against unsafe practices and hazards involving only property damage.

This appliance must be installed in accordance with local codes if any; if not, follow ANSI Z224.1/NFPA

54 or CAN/CSA B149.1, Natural Gas and Propane

Installation Code, as applicable.

This appliance is certified for use at altitudes up to 4,500ft(1,370m) in accordance to the latest CSA/

CGA 2.17-M91 Gas-Fired Appliances for Use at

High Altitudes.


Page 15

DANGER

Vapors from flammable liquids will explode and catch on fire. These will cause death or severe burns.

Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the appliance.

Keep flammable products

Far away from boiler

In approved containers

Tightly closed

Out of children’s reach

Vapors

Cannot be seen

are heavier than air

spread on the floor

Can spread from other rooms to the main burner by air currents

Do not install the appliance where flammable products will be stored.

Read and follow boiler warnings and instructions thoroughly. If owner’s manual is missing, contact the retailer or manufacturer.

This combination boiler must be installed by a qualified plumber, a licensed gas fitter, and/or a professional service technician.

Improper installation and/or operation will cause a potentially hazardous situation, such as serious injury or death. Also, it will void the warranty.

• The National Fuel Gas Code NFPA 54 / ANSI Z224.1

• National Electric Code ANSI/NEPA 70

• All applicable local, state, national and provincial codes, regulations and laws.

Proper care is your responsibility. Carefully read and understand the Operating Information in this manual before operating the Boiler.

Be aware of the location of the gas shut-off valve and operation method. Close the gas shut-off valve immediately if the appliance is subjected to fire, overheating, flood, physical damage, or any other damaging condition that might affect the operation of the unit. Boiler must be checked by a qualified technician before resuming operation.

DO NOT use this Boiler if any part has been under water. Immediately call a qualified technician for inspecting the Boiler and replacing any part of the control system and gas control which have been under water.

Do not power up the unit until the gas and water supply valves are fully opened. Make sure that the fresh air intake port and exhaust gas port are opened and functional.

DO NOT attempt to install, repair, or service this

Boiler by yourself.

Do not change any part of the Boiler.

Contact a qualified technician if the Boiler needs repair or maintenance.

Ask your gas supplier for a list of qualified service

providers.

DO NOT use spray paint, hair spray, or any other flammable spray near Boiler or near the exterior fresh air inlet port. DO NOT place any items in or around the exterior exhaust gas outlet port and/or fresh air inlet port. These could restrict or block the flow in or out of the vent system.

“Caution: While repairing control, all wires are labeled. You must connect the wires in accordance with the instruction.

Wiring errors can cause improper and dangerous

operation.

“Verify proper operation after servicing operation”

This consists of the gas ignition system components which are protected from water (dripping, spraying, rain, etc.) during operation and service (circulator replacement, condensate trap, control replacement, etc.).

After installing the heater, safety devices must be tested.

This boiler is equipped with a blocked vent shutoff system.

If the error code ‘41’ occurs, follow the instructions

below.

- First, turn off the manual gas valve.

- Make sure that there is no foreign object in the vent passage or rodent screen.

- If you do not find any problem, do the following.

- Turn off the error state by pressing the power button of control panel.

- If the error occurs repeatedly, call your service technician or gas supplier.

Page 16

3.2

Safety Precautions and Proper Use

Before Operation

1. Check the Gas Type (NG/LP)

When using or moving the unit for the first time, check if gas type matches with the gas type of the Boiler.

Check whether the gas type which is supplied is NG

(Natural Gas) or LP (Propane) and also check the

Boiler gas type.

The gas type is indicated on the rating plate on side of the Boiler.

2. Check the Power (120V 60Hz)

Check that the appliance is connected properly.

3. Check the Cold Water Inlet valve

Please keep the appliance water inlet valve open at all times.

The appliance will not ignite when insufficient water or no water is in the heating pipes.

(valve: always open position)

open

4. Check the Gas Valve

Check that the manual gas shut-off valve that supplies the FT is opened.

5. Check the area around the appliance and remove any combustible or flammable materials. Remove laundry or any other items that are on or near the boiler or vent pipe.

When in Operation CAUTION

1. Caution for Gas leak

Frequently check for a gas leak at the gas connection portion with soapy water.

Steps to take if you have a Gas leak.

1. Shut down the boiler as soon as gas fumes are detected.

2. Close the intermediate gas valve.

3. Open windows for ventilation.

4. Call a qualified service technician for immediate repair.

2. Caution for Ventilation

Make sure that there is sufficient inflow and outflow of air ventilation while using the unit.

If the ventilation is improper, combustion quality may deteriorate inside the appliance and cause shortened life of the appliance.

3. Burn Warning

Be careful not to burn yourself on the flue or pipes. They become extremely hot during operation.


WARNING

Do not use the appliance for any other purpose than for heating and hot water.

Do not store combustibles or flammable material such as gasoline near the appliance.

Do not store other items on or near this boiler.

Do not store combustible (flammable) materials such as papers.

Do not hang clothes on the vent pipe. This may start a fire.

CAUTION

Scalding Risk: Manufacturer strongly recommends the use of an anti-scald mixing valve at domestic hot water outlet (boiler location) to reduce potential for scalding.

Contact Manufacturer for recommended models.

Check with local codes.

__________________________________________

After repair of gas pipeline or gas regulator replacement, call A qualified contractor for inspection before starting it up.

Carbon monoxide poisoning

If vent pipe fumes enter the room, it could cause poisoning by carbon monoxide gas. Check that the vent pipes are properly connected. Open windows for ventilation. Call a qualified service technician for immediate repair.

Gas leakage test.

Gas supply line must be inspected regularly.

Do not shut off the Boiler.

When you leave home for a long time, do not shut off

Boiler. The Boiler has a freeze protection function. The ceramic heater is installed inside of the heater’s internal pipe to protect the heater from freezing.

Do not wipe the appliance or control panel with wet cloth. Electric shock may occur, or internal parts may fail due to the exposure to moisture.

Do not disassemble the Boiler.

If repair is required, call your local qualified technician.

Page 17

Page 18

SECTION 4 Installation

4.1 Location and Clearances

The FT must be mounted to a suitable wall by a qualified heating contractor under the guidelines of a boiler. The wall may be of concrete or wood. Suitable fasteners for concrete or wood must be used. Failure to wall mount this boiler using correct fasteners will affect the performance and life expectancy of the boiler and will void the warranty.

3

8

18

46

12

30

3

8

24

61

Minimum clearances to Combustibles.

WARNING

Installations must comply with

• All the local, state, provincial, and national codes, laws, regulations and ordinances.

• National Fuel Gas Code, ANSI Z223.1 – The latest version.

• National Electrical Code.

• A National Standard of Canada CAN/CSA-B149.1

Check before placing the Combination boiler

• Always check the connected components which are near to the heater. The components are below.

Water piping position / Venting adapter / Gas supply piping / Electrical power / Condensate drain hose.

• Inspect area around Combination boiler. Remove any combustible materials, gasoline and other flammable liquids. Failure to keep Combination boiler area clear and free of combustible materials, gasoline and other flammable liquids and vapors can result in severe personal injury, death or substantial property damage.

• The Combination boiler which has gas control system components must be protected from any possible danger during operation and service.

• If new Combination boiler replaces an existing appliance, check and correct system problems, for example:

- Do not install if: System leaks causing oxygen corrosion or heat exchanger cracks from hard water deposits.

Provide clearances

• If the heater was installed in a narrow space or corner, please ensure that there is sufficient space for service and maintenance access. For regular maintenance, gas and water lines must be accessible.

The boiler must be installed on a wall that can bear its weight.

For Installation from

Non-Combustibles and

Combustibles

TOP of appliance

BACK

FRONT

of appliance

SIDE

of appliance of appliance

18 in

(46 cm)

5 /

8

in

(1.5 cm)

24 in

(61 cm)

3 in

(7 cm)

Suggested

Service

Clearance

18 in

(46 cm)

5 /

8

in

(1.5 cm)

40 in

(101 cm)

8 in

(20 cm)

BOTTOM of appliance

12 in

(30 cm)

24 in

(61 cm)

Table 1.

Minimum Clearances to Combustibles and for Service.

WARNING

CLEARANCES FOR SERVICE ACCESS

• If you do not provide the minimum clearances shown, it might not be possible to service the boiler without removing it from the space.

• Space must be provided with combustion / ventilation air openings correctly sized for all other appliances located in the same space as the boiler. The boiler cover must be securely fastened to prevent it from drawing air from the boiler room. This is particularly important if the boiler is in a room with other appliances. Failure to comply with the above warnings could result in substantial property damage, severe personal injury, or death.


4.2 Wall Mount Bracket

• The installation height and location for your

FT depends on your installation scenario. With all clearances considered, and given adequate positioning for air supply and venting, you will need to determine the best position to mount the Wall Mount Bracket. The wall must be concrete, wood, or plywood over studs, and must be strong enough to hold the boiler!

• Start by familiarizing yourself to how the included Wall Mount Bracket hooks underneath the two Hangers that are attached to the back of the boiler. The ‘hooks’ of the Wall Mount Bracket will be 3”

from the Top of the boiler once the boiler is hung.

Bolts (4)

Anchors

(4)

Wall Mount

Bracket

*

• Position the Wall Mount Bracket at the location that it will go, being sure that it is level, and then drill 4 holes (0.47”dia) with a 1/2” drill bit, into the wall through the Bracket.

• If mounting to a concrete wall, then use the concrete anchors.

If onto wood or 5/8” (16 mm) plywood, then use the wood screws. Do not hang the FT onto sheetrock unless it is possible to fasten directly into the structural studs. If the included anchors do not suit your installation, you must use

‘Field Supplied’ anchors that are appropriate for the wall’s construction.

Hangers (2)

(fastened to the back of unit)

Page 19

3" to Top

of Unit

Concrete,

Wood, or 5/8" Plywood

Wall Mount

Bracket

Hang the Boiler

• Lift the boiler up, align the Hangers on the back of the boiler with the hooks on the Wall Mount

Bracket, and hang the boiler onto the Wall Mount

Bracket. Do a visual inspection to make sure that the boiler is hanging properly onto the hooks of the Wall Mount Bracket.

• Fasten the bottom of the boiler to the wall using

2 suitable wall anchors (field supplied).

Page 20

4.3

Combustion Air

FT boilers must have provisions for combustion and ventilation air in accordance with the applicable requirements for Combustion Air Supply and Ventilation in the National Fuel Gas Code, ANSI Z223 1; or in

Canada, the Natural Gas and Propane Installation Code,

CSA B149.1. All applicable provisions of local building codes must also be adhered to.

A FT unit can take combustion air from the space in which it is installed, or the combustion air can be ducted directly to the unit. Ventilation air must be provided in either case.

4.3.1

Combustion Air from Room

In the United States, the most common requirements specify that the space shall communicate with the outdoors in accordance with method 1 or 2, which follow.

Where ducts are used, they shall be of the same crosssectional area as the free area of the openings to which they connect.

Method 1

:

Two permanent openings, one commencing within 12” (300mm) of the top and one commencing within 12” (300mm) of the bottom, of the enclosure shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces that freely communicate with the outdoors. When directly communicating with the outdoors, or when communicating to the outdoors through vertical ducts, each opening shall have a minimum free area of 1 square inch per 4000 Btu/hr (550 square mm/kW) of total input rating of all equipment in the enclosure. When communicating to the outdoors through horizontal ducts, each opening shall have a minimum free area of not less than 1 square inch per 2000 Btu/hr (1100 square mm/kW) of total input rating of all equipment in the enclosure.

Method 2

:

One permanent opening, commencing within 12” (300mm) of the top of the enclosure, shall be permitted. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces that directly communicate with the outdoors and shall have a minimum free area of 1 square inch per 3000

Btu/hr (734 square mm/kW) of the total input rating of all equipment located in the enclosure. This opening must not be less than the sum of the areas of all vent connectors in the confined space.

Other methods of introducing combustion and ventilation air are acceptable, providing they conform to the requirements in the applicable codes listed above.

In Canada, consult local building and safety codes or, in absence of such requirements, follow CAN/CGA B149.1

4.3.2

Ducted Combustion Air

The combustion air can be taken through the wall, or through the roof. When taken from the wall, it must be taken from out-of-doors by means of the horizontal wall terminal. When taken from the roof, a field-supplied rain cap or an elbow arrangement must be used to prevent entry of rain water.

Use ABS, PVC, CPVC, polypropylene, or galvanized pipe for the combustion air intake. Route the intake to the boiler as directly as possible. Seal all joints.

Provide adequate hangers. The unit must not support the weight of the combustion air intake pipe. Maximum linear pipe length allowed is shown in

Table 5

. Subtract

5 allowable linear ft. (1.5m) for every elbow used.

The connection for the intake air pipe is at the top of the unit.

In addition to air needed for combustion, air shall also be supplied for ventilation, including air required for comfort and proper working conditions for personnel.

COMBUSTION AIR INSTALLATION STANDARDS

MATERIAL

ABS

PVC, sch 40

CPVC, sch 40

Polypropylene

Single wall galv. steel

UNITED STATES

ANSI/ASTM D1527

ANSI/ASTM D1785 or D2665

ANSI/ASTM F441

UL1738, ULC S636.

26 gauge

CANADA

Air pipe material must be chosen

CPVC, sch 40, ANSI/ASTM, Polypropylene based upon the intended application of the boiler.

Table 2. Required Combustion Air Pipe Material.


Page 21

NOTICE

The instructions for the installation of the venting system shall specify that the horizontal portions of the venting system shall be supported to prevent sagging; the methods of and intervals for support shall be specified. These instructions shall also specify that the venting system:

Category I, II and IV boilers must be installed so that horizontal sections have a slope of at least ¼ inch per foot (21 mm/m) to prevent accumulation of condensate; and

For Category II and IV boilers, where necessary, have means provided for drainage of condensate.

CAUTION

The FT is standard as a Natural Gas Boiler and must be converted if propane is the desired gas, unless specifically manufactured for propane.

Adequate drainage

• The appliance should be installed not to damage the adjacent area. If such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. The pan must not block combustion air flow.

Connecting the Water Supply

• To conserve water and energy, insulate all water piping—especially the hot and recirculation water lines. Never cover the drain or pressure relief valve.

Having a backflow preventer in the cold water supply line will prevent thermal expansion backflow. Contact the water supplier or local plumbing inspector for information about how to control this situation.

If overheating occurs or the gas supply fails to shut off, turn off the manual gas valve.

This installation must conform with below section

• “Air for Combustion and Ventilation” of the

National Fuel Gas Code, ANSI Z224.1/NFPA 54, or Sections 8.2, 8.3 or 8.4 of Natural Gas and

Propane Installation Code, CAN/CSA B149.1, or applicable provisions of the local building codes.

AVIS

Les instructions d'installation du système d'évacuation doivent préciser que les sections horizontales doivent être supportées pour prévenir le fléchissement. Les méthodes et les intervalles de support doivent être spécifiés. Les instructions doivent aussi indiquer les renseignements suivants: les chaudières de catégories I, II et IV doivent présenter des tronçons horizontaux dont la pente montante est d'au moins ¼ po par pied (21 mm/m) entre la chaudière et l'évent; les chaudières de catégories II et IV doivent être installées de façon à empêcher l'accumulation de condensat; et si nécessaire, les chaudières de catégories II et IV doivent être pourvues de dispositifs d'évacuation du condensat.

Page 22

4.4

Venting (Exhaust)

NOTICE

DO NOT COMMON VENT FT UNITS. FT units are never permitted to share a vent with

Category I appliances.

WARNING

All venting must be installed according to this manual and any other applicable local codes, including but not limited to, ANSI Z224.1/NFPA 54, CAN/CSA

B149.1 and ULC-S636. Failure to follow this manual and applicable codes may lead to property damage, severe injury, or death.

AVIS

NE PAS ÉVENT COMMUNE FT UNITÉS. FT unités ne sont jamais autorisés à partager un

évent Catégorie I avec les appareils.

The flue temperature of the FT changes dramatically with changes in operating water temperature. Therefore, it is necessary to assess the application of the boiler to determine the required certified vent class. If the FT is installed in an application where the ambient temperature is elevated, and/or installed in a closet/alcove,

CPVC, polypropylene, or stainless steel material is required. If the system temperatures are unknown at the time of installation, stainless, polypropylene or CPVC material is recommended.

The FT is a Category IV appliance and may be installed with PVC, CPVC or polypropylene that complies with

ULC

-S636, ANSI/ASTM D1785 F441

(see Table 3) or a stainless steel venting system that complies with UL 1738 Standard and ULC S636.

WARNING

Failure to use the appropriate vent material, installation techniques, glues/sealants could lead to vent failure causing property damage, personal injury or death.

WARNING

Use of cellular core PVC (ASTM F891), cellular core

CPVC, or Radel® (polyphenolsulfone) in non-metallic venting systems is prohibited and covering nonmetallic vent pipe and fittings with thermal insulation is prohibited.

INSTALLATIONS IN CANADA

require the use of venting material certified to ULCS636. All Gas vents connected to the FT, plastic, stainless steel or otherwise must be certified to this ULC stand

ard. Appropriate selection of vent material is very important for proper performance and safe opera

tion of the FT.

The flue temperature of the FT changes dramati

cally with changes in operating water temperature.

Therefore, it is necessary to assess the application of the boiler to determine the required certified vent class. If the FT is installed in an application where the outlet water temperature exceeds 145°F, and/or installed in a closet, class IIB or higher vent mate

rial is required. If the system temperatures are un

known at the time of installation, class IIB or higher venting material is recommended.

IN CANADA

all venting used must meet the following requirements:

1. ULC-S636 certified and marked

2. The first 3 feet of venting must be accessible for visual inspection.

3. All components used in the vent system must be from a certified manufacturer.

MATERIAL

Stainless Steel

PVC, sch 40

CPVC, sch 40

Polypropylene

UNITED STATES

UL 1738

ANSI/ASTM D1785

ANSI/ASTM F441

Table 3. Required Exhaust Vent Material.

UL1738 or ULC-S636

CANADA

Venting must be ULC-S636 certified for use as venting material. The venting material must be chosen based upon the intended application of the boiler.


Page 23

4 . Vent system components must not be mixed with alternate manufacturers certified components and/or unlisted components.

5 . The venting must be installed according to the vent manufacturers installation instructions.

The unit’s vent can terminate through the roof, or through an outside wall.

Vent pipe must pitch upward, toward the vent terminal, not less than 1/4” per foot, so that condensate will run back to the FT to drain. Route vent pipe to the heater as directly as possible. Seal all joints and provide adequate hangers as required in the venting system manufacturer’s Installation

Instructions. Horizontal portions of the venting system must be supported to prevent sagging and may not have any low sections that could trap condensate. The unit must not support the weight of the vent pipe.

WARNING

Failure to vent this Boiler in accordance with these instructions could cause a fire, resulting in severe property damage, personal injury or death.

Do not interchange vent systems or materials unless it is specified.

The use of thermal insulation covering pipe and fittings is prohibited.

Do not apply an electric damper, draft hood or vent damper with this Boiler.

Do not locate vent termination where exposed to prevailing winds. Moisture and ice may fall on surface around vent termination. To prevent deterioration, surface must be in good repair

(sealed, painted, etc.).

4.5 General Location Guideline

1. Vent system installation must be in accordance with Local codes or, in the absence of local codes, the National Fuel Gas Code, ANSI Z224.1 /NFPA

54 and/or CSA B149.1, Natural Gas and Propane

Installation Code.

2. The Boiler is designed to be installed as a Direct

Vent (sealed combustion) type. The air for combustion must be supplied directly from the outside to the burner. Also, the flue gases must be vented directly to the outdoors (through wall or roof).

3. Do not install venting system components on the exterior of building except as specifically required by these instructions

- Vent terminals must be at least 1 foot from any door, window, or gravity inlet into the building.

- Maintain the correct clearance and orientation between the vent and air intake terminals.

The vent and air intake terminals must be at the same height and their center lines must be spaced apart 12˝ minimum.

- The bottom of the vent and air intake terminal must be at least 12˝ above the normal snow line. In no case should they be less than 12˝ above grade level.

- Do not install the vent terminal directly over windows or doors.

- Air intake terminal must not terminate in areas that might contain combustion air contaminates, such as near swimming pools.

- For sidewall venting, the minimum horizontal distance between any adjacent individual Module

(Boiler) vent terminations is twelve (12) inches. It is better to be far more than 12 inches for avoiding frost damage to building surfaces where vent terminations are placed.

- The minimum horizontal distance between any adjacent individual module (boiler) roof vent endpiece is one (1) foot.

Page 24

4.6

Locations for Vent Pipe Terminator

4.6.1 Direct Venting Clearances

U.S. Installations (see note 1) Canadian Installations (see note 2)

A= Clearance above grade, veranda, porch, 12 inches (30 cm) deck, or balcony See note 6

B=

Clearance to window or door that may be Direct vent only: 12 inches (30cm); opened Other than Direct vent: 4 ft (1.2m) below or to side of opening; 1 ft (30cm) above opening

C=

Clearance to permanently closed window See note 4

D=

Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (61cm) from the center

See note 4 line of the terminal

12 inches (30 cm)

See note 6

36 inches (91 cm)

NT 80 only - 12 inches (30 cm)

See note 5

See note 5

E=

F=

G=

H=

I=

Clearance to unventilated soffit

Clearance to outside corner

Clearance to inside corner

Clearance to each side of center line

See note 4

See note 4

See note 4 extended above meter/regulator assembly See note 4

Clearance to service regulator vent outlet See note 4

See note 5

See note 5

See note 5

3 feet (91 cm) within a height 15 feet above the meter/regulator assembly

3 feet (91 cm)

J=

Clearance to nonmechanical air supply Direct vent only: 12” (30cm) 80-285; 36” (91cm) inlet to building or the combustion air inlet 399-850. Other than Direct vent: 4 ft (1.2m) below 36 inches (91 cm) to any other appliance or to side of opening; 1 ft (30cm) above opening NT 80 only - 12 inches (30 cm)

6 feet (1.83 m)

K=

Clearance to a mechanical air supply inlet 3 feet (91 cm) above if within 10 feet (3 m) horizontally

L=

Clearance above paved sidewalk or paved Vent termination not allowed in this location driveway located on public property for category IV appliances.

M=

Clearance under veranda, porch, deck, or balcony

See note 4

7 ft (2.1 m)

See note 5

12 inches (30 cm) (see note 3)

Notes:

1. In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.

2. In accordance with the current CAN/CSA-B149.1 Installation Codes.

3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

4. For clearances not specified in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the requirements of the gas supplier.

5. For clearances not specified in CAN/CSA-B149, clearance is in accordance with local installation codes and the requirements of the gas supplier.

6. IMPORTANT: Terminal must be placed such that it remains a minimum 12” above expected snow line. Local codes may have more

specific requirements, and must be consulted.

Table 4.

Direct Vent Clearances


Page 25

4.6.2

Venting Requirements in the

Commonwealth of Massachusetts

In Massachusetts the following items are required if the side-wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches. From Massachusetts Rules and regulations 248 CMR 5.08

1. Installation of Carbon Monoxide Detectors

At the time of installation of the side wall vented gas fueled appliance, the installing plumber or gasfitter shall observe that a hard-wired carbon monoxide detector with an alarm battery back-up is installed on the floor level where the gas appliance is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery operated or hard-wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side-wall horizontally vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for installation of hard-wired carbon monoxide detectors.

a. In the event that the side-wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard-wired carbon monoxide with alarm and battery back-up may be installed on the next adjacent floor level.

b. In the event that the requirements of the subdivision cannot be met at the time of completion of installation, the owner shall have a period of thirty

(30) days to comply with the above requirements, provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm be installed.

2. Approved Carbon Monoxide Detectors

Each carbon monoxide detector shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

3. Signage. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print no less than one-half (1/2) inch in size: “GAS

VENT DIRECTLY BELOW, KEEP CLEAR OF ALL

OBSTRUCTIONS”.

4. Inspection The state or local gas inspector of the side-wall horizontally vented gas fueled appliance shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a) 1-4.

Page 26

4.7 Common Vent Test

NOTE: This section does not describe a method for common venting FT units. It describes what must be done when an existing unit is removed

from a common vent system.

NOTICE

At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

1. Seal any Not Used openings in the common venting system.

2. Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.

3. Insofar as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed.

4. Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so the appliance will operate continuously.

5. Operate the main burner for 5 minutes then, determine if the cut-draw overflows to the discharge opening. Use the flame of a match or a candle or the smoke of a cigarette, a cigar or a pipe

6. Once it has been determined, according to the method indicated above, that each device connected to the drainage system is placed in the open air in an adequate manner.

Install the doors and windows, fans, the registers of chimneys and gas appliances to their original position

7. Any malfunction of the venting system should be corrected so that the installation conforms to the National Fuel Gas Code,

ANSI Z223.1/NFPA 54 and (or) the installation codes CAN/

CSA-B149.1. If the size of a section of the evacuation system must be changed, the system should be modified to comply with the minimum values of the relevant tables of appendix F of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and

(or) the installation codes CAN/CSA-B149.1

AVIS

Au moment du retrait d'une chaudière existante, les mesures suivantes doivent être prises pour chaque appareil toujours raccordé au système d'évacuation commun et qui fonctionne alors que d'autres appareils toujours raccordés au système d'évacuation ne fonctionnent pas:

1. Sceller toutes les ouvertures non utilisées du système d'évacuation.

2. Inspecter de façon visuelle le système d'évacuation pour déterminer la grosseur et l'inclinaison horizontale qui conviennent et s'assurer que le système est exempt d'obstruction, d'étranglement, de fuite, de corrosion et autres défaillances qui pourraient présenter des risques.

3. Dans la mesure du possible, fermer toutes les portes et les fenêtres du bâtiment et toutes les portes entre l'espace où les appareils toujours raccordés au système d'évacuation sont installés et les autres espaces du bâtiment. Mettre en marche les sécheuses, tous les appareils non raccordés au système d'évacuation commun et tous les ventilateurs d'extraction comme les hottes de cuisinière et les ventilateurs des salles de bain.

S'assurer que ces ventilateurs fonctionnent à la vitesse maximale.

Ne pas faire fonctionner les ventilateurs d'été. Fermer les registres des cheminées.

4. Mettre l'appareil inspecté en marche. Suivre les instructions d'allumage. Régler le thermostat de façon que l'appareil fonctionne de façon continue.

5. Faire fonctionner le brûleur principal pendant 5 min ensuite, déterminer si le coupe-tirage déborde à l'ouverture de décharge.

Utiliser la flamme d'une allumette ou d'une chandelle ou la fumée d'une cigarette, d'un cigare ou d'une pipe.

6. Une fois qu'il a été déterminé, selon la méthode indiquée cidessus, que chaque appareil raccordé au système d'évacuation est mis à l'air libre de façon adéquate. Remettre les portes et les fenêtres, les ventilateurs, les registres de cheminées et les appareils au gaz à leur position originale.

7. Tout mauvais fonctionnement du système d'évacuation commun devrait être corrigé de façon que l'installation soit conforme au

National Fuel Gas Code, ANSI Z223.1/NFPA 54 et (ou) aux codes d'installation CAN/CSA-B149.1. Si la grosseur d'une section du système d'évacuation doit être modifiée, le système devrait

être modifié pour respecter les valeurs minimales des tableaux pertinents de l'appendice F du National Fuel Gas Code, ANSI

Z223.1/NFPA 54 et (ou) les codes d'installation CAN/CSA-B149.1

NOTICE

DO NOT COMMON VENT FT UNITS. FT units are never permitted to share a vent with

Category I appliances.

AVIS

NE PAS ÉVENT COMMUNE FT UNITÉS. FT unités ne sont jamais autorisés à partager un évent

Catégorie I avec les appareils.


Page 27

4.8

Air Supply and Vent Connections

4.8.1

Vent / Air Pipe Lengths

Combination Boiler Model

3˝ Combustion Air / Vent Pipe

Max

2˝ Combustion Air / Vent Pipe

Max

FTCW140/199

100´ (30M)

50´

*

(15M

*

)

Table 5. Maximum Vent / Air Pipe Lengths for either 3” or 2 “ Pipes

* Propane models are limited to 25 equivalent feet of 2” vent

NOTE : For each elbow, reduce maximum allowable length

• 5 feet (1.5M) for each 3-inch 90-degree elbow

• 2.5 feet (0.75M) for each 3-inch 45-degree elbow



• Maximum of 6 elbows for 3” vent. Max of 4 elbows for 2” vent.

NOTE: When using a 2” vent pipe, DIP Switch 4 must be in the OFF position.

For 3” Pipe vent, the default setting for DIP 4 is ON.

Refer to Section 4.19

3” pipe

4.7.2 Direct Venting

The boiler uses 3˝ or 2˝ diameter exhaust and 3˝ or 2˝diameter intake air ducts. To ensure the draw of air directly from and exhaust of air directly to the outside of the building, create an airtight seal from the boiler collar to the vent termination.

(For installations in Canada) field-supplied plastic vent piping must comply with CAN/CSA B149.1

(latest edition) and be certified by the Standard

For Type BH Gas Venting Systems, ULC-S636.

Components of this listed system must not be interchanged with other vent systems or unlisted pipes or fittings. All plastic components and specified primers and glues of the certified vent system must be from a single system manufacturer and must not be intermixed with another system manufacturer’s parts.

Tightening — Boiler Collar (Socket) to Vent

Pipe & Inlet Pipe

- Clean and dry your selected PVC, CPVC vent pipe and boiler collar (socket).

- You can select to the size of vent pipe(2˝ & 3˝), according to the installation conditions.

- Push the pipe into the collar (socket) until it touches the bottom of the socket fitting.

- For 2” installations, install a field supplied 3” to

2” adaptor. Adaptor must be installed in vertical section of piping only.

2” pipe connected, using an adapter

3” to 2” adapter is NOT included.

Page 28

4.8.2

Indoor Combustion Air

Read and Follow Sections 4.3 Guidelines First.

1. Insert the termination end cap into the intake air duct.

2. Provide two openings to allow for circulation of combustion air as specified by ANSI Z224.1/NFPA 54.

In Canada refer to CAN/CSA B-149.1

NOTE: The FT needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air.

Model

Maximum Input (BTU/H)

Indoor make up air is provided, a mini

mum free area of 1 in 2 per 1,000 BTU/H

FTCW140

140,000

140 in2 13 1/4"

(W) x 13 1/4" (H)

4.9

Vent / Air Pipe Termination

Vent Air Terminations:

After connecting terminals install vent screens on both the vent and air inlet.

Two 3” vent screens are included with each unit.

Additional replacement screens are available for purchase.

2” Vent Screen P/N - FT1508

3” Vent Screen P/N - FT1730

FTCW199

199,000

199 in2 13 1/4"

(W) x 13 1/4" (H)

Vertical Vent Termination

• Direct Vent - Vertical Terminations with Sloped Roof

Vent Screens are required


Horizontal Vent Termination

• Direct Vent - Sidewall Termination

Page 29

4.8 Vent / Air Pipe Termination (continued)

Exhaust

12” MIN

Apart

NOTE: The Exhaust must be equal to or above the

Combustion Intake while at a Minimum of 12” apart.

FRONT VIEW


1” MIN

12” MIN

Exhaust

Exhaust Screen

Exterior Wall

90 o

Elbow

NOTE: Must be 12”

Minimum distance above highest anticipated snow level or grade, whichever is greater (TYP).

Air Intake Screen

Combustion

Intake

SIDE VIEW

A

Exterior Wall

Exhaust Exhaust

Exhaust Screen

B

12” MIN

12”

MIN

Combustion

Intake

FRONT VIEW


12” MIN

90 o

Elbow

NOTE: Must be 12”


Air Intake Screen

Combustion

Intake

SIDE VIEW

Exhaust Exhaust

Screen

1” MIN

Sill

Exterior Wall

C

Exhaust

12” MIN

12”

MIN

Combustion

Intake

FRONT VIEW

Combustion

Intake

12” MIN

NOTE: Must be 12”


SIDE VIEW

Vent

Screens are required

1” MIN

Sill

• Direct Vent - Optional Side wall Terminations


Page 30


Exterior Wall

Concentric Vent Termination

• Direct Vent - Optional Horizontal and Vertical Concentric Vent

(2” or 3”)

Side Wall Kit

(2” or 3”)

12” Minimum clearance above highest anticipated

4. Concentric Vent Termination


12” Minimum clearance above highest anticipated

Exhaust snow level or grade,

Exterior Wall

Exhaust

Exhaust



4" (100mm)

12” Minimum clearance above highest anticipated snow level or grade, whichever is greater.

12” (30cm) Minimum clearance above highest anticipate

snow level.



above highest anticipated snow level or grade, whichever is greater.

Strap

Vent

Combustion Air

12” Minimum clearance above highest anticipated snow level or grade, whichever is greater.

Vent

12” Minimum clearance above highest anticipated snow level or grade, whichever is greater. clearance above highest anticipate

snow level.

12” (30cm) Minimum clearance above highest anticipate

snow level.

Vent

Combustion Air

Vent

Combustion Air

Vent

Combustion Air


Page 31

4.10

Gas Supply and Piping

Gas piping should be supported by suitable hangers or floor stands, not the appliance.

Review the following instructions before proceeding with the installation.

1. Verify that the appliance is fitted for the proper type of gas by checking the rating plate. FT will function properly at elevations up to 10,000 feet

(3050 m). Refer to Section 4.12 for High Altitude

Settings.

2. For minimum and maximum supply pressures, see

Table 9 on page 34

3. Refer to

Table 6, Table 7, and Table 8

to size piping.

4. Run gas supply line in accordance with all applicable codes.

5. Locate and install manual shutoff valves in accordance with state and local requirements.

6. A sediment trap must be provided upstream of the gas controls.

7. All threaded joints should be coated with piping compound resistant to action of liquefied petroleum gas.

8. The appliance and its individual shutoff valve must be disconnected from the gas supply piping during any pressure testing of that system at test pressures in excess of 1/2 PSIG (3.45kPa).

9. The unit must be isolated from the gas supply system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2

PSIG (3.45kPa).

10. The appliance and its gas connection must be leak tested before placing it in operation.

11. Purge all air from gas lines.

CAUTION

PRV (included) must be installed immediately at the top of boiler outlet to PRV, with no valves between.

Refer to Section 4.15

__________________________________________

WARNING:

Open flame can cause gas to ignite and result in property damage, severe injury, or loss of life.

NOTE

: The FT appliance and all other gas appliances sharing the gas supply line must be firing at maximum ca

pacity to properly measure the inlet supply pressure. The pressure can be measured at the supply pressure port on the gas valve. Low gas pressure could be an indication of an undersized gas meter, undersized gas supply lines and/or an obstructed gas supply line.

SCHED 40 METAL PIPE CAPACITY FOR 1.50 SPECIFIC GRAVITY

UNDILUTED PROPANE

NOMINAL PIPE SIZE

@

11" W.C. INLET AND 0.5" W.C. PRESSURE DROP

SIZE 1/2" 3/4" 1"

LENGTH MAXIMUM CAPACITY IN THOUSANDS OF BTU PER

HOUR

20 200 418 787

40

60

80

137

-

-

287

231

197

541

434

372

100 - 175 330

NOTES:

1. Follow all local and national propane gas codes for line sizing and equipment requirements. 2. Verify that inlet gas pressure remains between

4 and 13 inches of water column before and during operation.

Source: ANSI Z223.1-80 National Fuel Gas Code.

Table 6. Nominal Pipe Size, Propane

SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY NATURAL GAS

NOMINAL PIPE SIZE

@

0.30" W.C. PRESSURE DROP

LENGTH 3/4" 1"

FT CUBIC FEET OF GAS PER HOUR

20 190 350

40

60

80

130 245

105 195

90 170

100

Table 7. Nominal Pipe Size, Natural Gas

ATTENTION

PRV (inclus) doit être installé immédiatement en haut de la chaudière sortie de PRV, sans les vannes entre.

Se reporter à la Section 4.15

__________________________________________

EQUIVALENT LENGTHS OF STRAIGHT PIPE FOR TYPICAL SCH 40 FITTINGS

NOMINAL PIPE SIZE

FITTING

1/2" 3/4"

LINEAR FEET

1"

90° ELBOW 3.6 4.4 5.2

TEE 4.2 5.3 6.6

Table 8. Equivalent Pipe Lengths

Page 32

The gas connection fitting is,

3/4” male NPT

on FTCW140 models

3/4” male NPT

on FTCW199 models

The supply line must be sized for the maximum output of the combination boiler model being installed. If there are additional gas appliances from the main supply line, you must measure sizes of the supply line according to the

COMBINED total maximum BTUH draw for the appliances as if they were all operating at the same time.

Measure the length of the gas supply line from the gas meter to the Combination boiler.

Use the tables in this manual or refer to the gas line manufacturers sizing information to determine the correct supply pipe size.

The gas shut-off valve in the gas supply line should be installed close to the unit.

To facilitate any future maintenance, it is also recommended that an approved gas union fitting be installed in the supply line between the shut-off valve and the 3/4˝ male NPT connection on the

Combination boiler.

1) Install an approved gas line pipe to gas line connection under the Combination boiler.

Include manual shut off valve and gas union connection, as shown.

2) Test gas pressure to make sure it meets the minimum standards and does not exceed the maximum standards for the combination boiler.

3) Leak test the gas line pipe before placing the unit in operation. Use approved leak detector liquid solutions only to check for leaks.

Do Not Operate the combination boiler until all connections have been completed, checked for leaks, and the heat exchanger is filled with water.

CLOSED POSTION

UNION

FITTING

MANUAL SHUT OFF VALVE

GAS PIPE

Gas Line Valve Detail


4.10 Gas Supply and Piping (cont)

Suggested Natural Gas (NG) Layout

NOTE: Total gas supply capacity must not be less than the total demand capacity of the connected appliances.

Page 33

Suggested Propane Gas (LP) Layout

NOTE: Total gas supply capacity must not be less than the total demand capacity of the connected appliances.

The combination boiler must be installed downstream of the gas meter for adequate gas supply.

The gas piping must not be less than

1/2”

for FTCW140 models and

3/4” female NPT on FTCW199 models.

Page 34

4.11

Gas Supply Pressure

Refer to the illustration.

Offset Adjustment.

Do Not Adjust without using a combustion analyzer to verify adjustment. Adjust ONLY when in MIN Fire and when using a combustion analyzer.

See Section 4.12 for step by step details.

Gas Outlet / Manifold Pressure Port

Inlet Gas Pressure Port

FTCW

140

FTCW

199

Gas Outlet / Manifold Pressure Port

Inlet Gas Pressure Port

Offset Adjustment.

Do Not Adjust without using a combustion analyzer to verify adjustment. Adjust

ONLY when in MIN Fire and when using a combustion analyzer.

See Section 4.12 for step by step details.

LP Gas Natural Gas

The Maximum and Minimum gas line pressures must be at

Max Fire operation.

Maximum Pressure

13.0" WC

Maximum Pressure

10.5" WC

Minimum Pressure

8.0" WC

Minimum Pressure

3.5" WC

CAUTION

Table 9.

Gas Pressures

The appliance and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of the system at test pressures in excess of 1/2 psi (3.5 kPa).

The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).

Loosen the pressure port screws before you check the gas inlet pressure.


4.12

Adjusting Combustion

1. Using a Phillips screwdriver, remove the 4 screws on the front cover and remove cover.

2. Turn ON the GAS and WATER supply to the FT.

3. Turn ON the FT.

4. Ensure your mascot FT is set for the correct altitude. The default setting is for altitudes of

0~1,999 ft above sea level. If your Mascot FT is installed at an altitude of 2,000 ft,or greater the correct altitude setting should be set according to Section 4.13 of the Mascot FT Install and

Operating Manual (document #1318) before you continuing tuning this unit.

5. Connect a manometer to the manifold pressure port. For dual port manometers, use the positive pressure side. Check for proper manifold gas pressure. Refer to table below.

6. Establish a call for heat. You may need to disconnect the outdoor reset if you are making this gas conversion during warm weather.

7. Setup your combustion analyzer and place the sensor into the combustion test port

Page 35

8. Per Table B for Max Fire, change dip switch 6 to

ON and 7 to OFF. The unit will cycle up to MAX fire.

9. WAIT for your combustion analyzer to stabilize.

This may take up to 3 minutes depending on your combustion analyzer. Then check the CO2 measurement for MAX fi re. Refer to Table 10 for acceptable MAX fire combustion readings Do

NOT attempt to adjust CO2 at MAX Fire.

ONLY adjust CO2 in MIN Fire operation .

10. Per Table B for MIN Fire, change dip switch 6 to

OFF and 7 to ON. The unit will cycle down to MIN

Fire.

11. WAIT for your combustion analyzer to stabilize.

Then check the CO2 measurement for MIN fi re. Refer to Table 10 for acceptable MIN fire combustion readings

12. Open the Gas Valve Adjustment Port by removing the cap screw with a 4mm Allen wrench.

13. Then use the 4 mm Allen wrench to make a minor adjustment (1/8 turn) to either increase or decrease CO2. See 4.11 on page 34

WARNING

Document 4288D

NOTE: Installer is required to verify combustion settings as part of the installation process. CO should not exceed 200 ppm.

Standard Factory Setting is for

MAX Fire. 9.0% CO2 @ 0-2,000 ft altitude (Natural Gas).

CO

2

value

FTCW (ALL Sizes)

( and all altitudes)

CO2 Values

MAX FIRE

MIN FIRE

Natural Gas (NG)

2˝ VENT 3˝ VENT

8.5 - 10.5%

8 - 10%

Propane Gas (LP)

2˝ VENT 3˝ VENT

9.5 - 11%

9 - 10.5 %

Manifold pressure

FTCW140

FTCW199

MAX FIRE

MIN FIRE

MAX FIRE

MIN FIRE

Table D

Manifold Pressures

‘NG’ type combustibility

2"/3" VENT

-0.216

" WC

0.002

" WC

-0.314

"WC

-0.015

"WC

‘LP’ type combustibility

2"/3" VENT

-0.216

" WC

0.079

" WC

-0.173

"WC

-0.015

"WC

21.

It may be necessary to go back and forth between HI Fire and LOW Fire several times (and making adjustments only at LOW Fire), before

CO2

at both are within acceptable levels. Be sure to put the adjustment port cap screw back onto the valve when done.

22.

Once the CO2

and manifold pressure measurements for both MIN and MAX Fire are acceptable per

Table C, set DIP switches 6 and 7 to the OFF position for Nominal Fire (normal operation).

23.

Write in the correct Conversion Date and the Technicians Name to the included gas conversion sticker. See Figure F. Then apply that sticker adjacent to the rating plate.

24. Remove your combustion analyser from the Test Port and be sure to thread the Test Port plug back into position.

25. Re-connect outdoor reset if it was disconnected, put the boiler cover back on and assemble/tighten the 4 screws that hold the cover in place.

This unit was converted on ____/____/___to _____gas with kit #____________by______________________

(name and company __________________________ accountable)_________________________________

___________________________________________

Cette unité a été converti ____/____/____ten ______gaz en utilisant le kit numéro _____ par______________

(nom et société_________________________________ responsable)___________________________________

_____________________________________________

Figure F (Conversion label)

800.900.9276

•

Fax 800.559.1583 (Customer Service, Service Advisors)

20 Industrial Way, Rochester, NH 03867

•

603.335.6300

•

Fax 603.335.3355 (Applications Engineering)

1869 Sismet Road, Mississauga, Ontario, Canada L4W 1W8

•

905.238.0100

• pg 4 of 4 www.Laars.com

Page 36

14. It may be necessary to go back and forth between HI Fire and LOW Fire several times (and adjusting only at LOW Fire), before CO2 at both are within acceptable levels. Be sure to put the adjustment port cap screw back onto the valve when done.

15 Once the CO2 and manifold pressure measurements for both MIN and MAX Fire are acceptable per Table C, set DIP switches 6 and

7 to the OFF position for Nominal Fire (normal operation).

16. Remove your combustion analyzer from the Test

Port and be sure to thread the Test Port plug back into position.

17. Re-connect outdoor reset if it was disconnected, put the boiler cover back on and assemble/tighten the 4 screws that hold the cover in place.

4.13

High Altitude Installations. 2,000’ to 10,000’

The FT is shipped with a default factory setting for installation at an altitude of 0 to 2000’ (approx). For maximum efficiencies at higher altitudes (2,000’ to 10,000’), the FT does have an adjustment in the

Installer Parameters Mode.

Follow these instructions if your installation is at 2,000’ - 10,000’.

1. With the Power

turned OFF, press the 'Modes button' for 5 seconds to get into the Installer

Parameters Mode.

2. Turn the dial (E) until ‘ 28:HA ’ appears.

3. Press the dial (E).

4. Set the high altitude value by turning the dial.

#

2

4

0

1

Altitude of Installation

0~1999 ft (0~609 m)

2,000~4,499 ft (610~1,645 m)

4,500~7,699 ft (1,646~2,346 m)

7,700~10,000 ft (2,347~3,048 m)

Refer to table.

5. Press the dial again (E) to save the setting.

6. Press the ‘Modes button’

for one second, to

Save the number and to go back to initial status.


Page 37

The FT Series, Wall Combi, Gas Conversion Kit

4.14

Natural Gas to Propane Conversion

Kit # R20770

The FT Series, wall combi, condensing boiler is confi gured for Natural Gas (NG) from the factory.

A Natural Gas to Propane Conversion Kit is included with every FT. The gas conversion kit will show you how to convert your FT boiler to propane gas. If your

FT does not have the bag containing the conversion kit, a replacement kit can be obtained. Contact the manufacturer and request a replacement conversion kit.

NOTICE

If your installation altitude is greater than 2000 ft, check that the ‘High Altitude’ Installer Setting has been adjusted to suit your installation altitude. Refer to Section 4.12 of the

Installation and Operation Instructions (Document 1318).

WARNING

This gas conversion kit shall be installed by a qualifi ed service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. The information in these instructions must be followed to minimize the risk of fi re or explosion or to prevent property damage, personal injury or death. The qualifi ed service agency is responsible for the proper installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as specifi ed in the manufacturer’s instructions supplied with the kit.Installation must conform to local codes and the latest edition of the National Fuel

Gas Code, ANSI Z223.1 and CAN-B149.1. Failure to follow instructions could result in serious injury or property damage. The qualifi ed agency performing this work assumes responsibility for gas conversion.

CAUTION

This combination boiler has already been set to burn natural gas, but can be converted to burn LP gas. Before placing the combination boiler into operation, verify that the type of gas supplied to your combination boiler.

ON / OFF

Document 4288D

Steps 1 thru 17

1. Turn OFF the FT. The ON / OFF button is located at the bottom left of the Control Display

.

2. Turn OFF the GAS and WATER supply to the FT

(valves are located on the plumbing pipes.)

3. Using a Phillips screwdriver, remove the 4 screws on the front cover. See Figure A.

4. Locate the Gas Inlet Pipe at the top left of the unit as shown in Figure A, and loosen the Brass Fittings at both ends of the Gas Inlet Pipe.

5. Completely unthread the brass fi tting on the blower end of the Gas Inlet Pipe and then carefully swing the Gas

Inlet Pipe to the left or right, just enough so that it is out of the way. See Figure B.

6. Remove the existing natural gas nozzle or orifi ce. If your unit is a 199, note that the fl at side of the orifi ce is towards the blower. Save the packing for re-use. See

Figure C.

Model

FTCW140

Natural Gas (NG) part #

FT1412N

FTCW199

Table A. Gas Conversion Parts

FT1780

Propane Gas (LP) part #

FT1412P

FT1802

Nozzle

Orifi ce

800.900.9276

•

Fax 800.559.1583

(Customer Service, Service Advisors)


•

603.335.6300

•

Fax 603.335.3355

(Applications Engineering)


•

905.238.0100


Page 38


Figure A

Gas Valve

Combustion

Test Port

Figure B

Document 4288D

Figure C

Gas Valve

FTCW

140

FTCW

199

Figure B

Gas Valve

Figure C

ORIFICE

PACKING

WARNING

AVERTISSEMENT

This conversion shall be installed by a qualifi ed service agency in accordance with the manufacturer's

Ce conversion doit être installé par un organisme de service conformément aux instructions du fabricant instructions and all applicable codes and requirements of the authority having jurisdiction. If the information in these instructions is not followed exactly, a fi re, et tous les codes et les exigences de l’autorité compétente. Si les informations contenues dans ces instructions n’est pas suivi à la lettre, un incendie, an explosion or production of carbon monoxide may result causing property damage, personal injury or loss of life. The qualifi ed service agency is une explosion ou de la production de monoxyde de carbone mais résultat causant des dommages matériels, des blessures ou des pertes de vie. Le responsible for the proper and complete installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as specifi ed in the manufacturer's instruction supplied with the kit.

• service est responsable pour la bonne et complète l’installation de ce kit. L’installation n’est pas correcte et complète jusqu’à ce que le fonctionnement de l’appareil converti est vérifi ée comme spécifi é dans le manuel d’instruction fourni avec le kit.

•


905.238.0100



Page 39

Document 4288D

ON

MIN Fire

MAX Fire

NG Natural

3” Vent Size

ON OFF

ON

OFF

OFF

ON

OFF

Normal Operation

Normal Operation

LP Propane

2” Vent Size

ON ON

OFF

ON

ON

ON

MBH 120 140 175 199

Table B DIP Switch Settings

7. Install the new LP (propane) nozzle or orifi ce. Reuse the packing from previous.

8. Return the Gas Inlet Pipe to its original position and tighten both brass fi ttings.

9. Per Table B, set DIP Switch 5 to OFF for LP

Propane.

10. Turn ON the GAS and WATER supply to the FT

11. Now start the unit and adjust combustion as described in Section 4.12

12. Upon completion of set up, write in the correct

Conversion Date and the Technicians Name to the included gas conversion sticker. See Figure F.

Then apply that sticker adjacent to the rating plate.

Shown is a

Model 140 with 3" Venting and using

Natural Gas

Figure D

Gas Valve

Adjustment Port

FTCW

140

Figures E

Gas Valve

Adjustment Port

-

-

+

800.900.9276

•

Fax 800.559.1583


•

603.335.6300

•

FTCW

Fax 603.335.3355

199


•

905.238.0100


Page 40


Document 4288D

NOTE: Installer is required to verify combustion settings as part of the installation process.

CO should not exceed 200 ppm.

FTCW (ALL Sizes)

( and all altitudes)

Table C

CO

2

value

MAX FIRE

MIN FIRE

Natural Gas (NG)

2˝ VENT 3˝ VENT

8.5 - 10.5%

8 - 10%

Propane Gas (LP)

2˝ VENT 3˝ VENT

9.5 - 11%

9 - 10.5 %

Manifold pressure

FTCW140

FTCW199

MAX FIRE

MIN FIRE

MAX FIRE

MIN FIRE

Table D

‘NG’ type combustibility

2"/3" VENT

-0.216

" WC

0.002

" WC

-0.314

"WC

-0.015

"WC

‘LP’ type combustibility

2"/3" VENT

-0.216

" WC

0.079

" WC

-0.173

"WC

-0.015

"WC

This unit was converted on ____/____/___to _____gas with kit #____________by______________________

(name and company __________________________ accountable)_________________________________

___________________________________________

Cette unité a été converti ____/____/____ten ______gaz en utilisant le kit numéro _____ par______________

(nom et société_________________________________ responsable)___________________________________

_____________________________________________

Figure F (Conversion label)

800.900.9276

•

Fax 800.559.1583

(Customer Service, Service Advisors)


•

603.335.6300

•

Fax 603.335.3355



•

905.238.0100



Page 41

4.15

Plumbing Guidelines

4.15.1

External Plumbing and Water

Connection Guidelines

- Ensure pipe material meets local codes and industry standards.

- The pipe end must be clean and free of debris.

- Do not apply torch heat within 12˝ of the bottom connections of the unit.

- The DHW inlet and outlet connections are 3/4”.

The CH supply and return connections are 1”. The system piping must be a min. of 1-1/4” (see Sections

4.15.4 & 4.15.5 for details).

- Isolation valves (shutoff valve) will be used.

- All piping should be insulated.

4.15.2

Applicable Backflow Preventer

- Apply a backflow preventer valve in the DHW supply inlet (water Inlet) to the unit as required by local codes.

4.15.3

Diaphragm type Expansion tank

- The air in a diaphragm-type expansion tank is separated from the water by a flexible rubber membrane. When the tank is installed in and connected to the piping of the system, water enters the other side of the tank chamber and presses down on the diaphragm.

- You should always install an ‘Automatic Air Vent on the top of the air separator to remove

residual air from the system.

- Automatic air vent has been installed on the inside of the boiler.

- The installation of an additional air vent is optional.

- If the boiler is installed in a closed water supply system, such as one having a backflow preventer in the cold water supply line, it will control thermal expansion.

CAUTION

Use at least the MINIMUM pipe size for the entire boiler loop piping (connecting boiler to and from the primary/secondary connection). Use only primary/secondary piping as shown. Failure to follow these guidelines could result in system problems.

CH pipe minimum size : 1 1/4˝

DWH pipe minimum size : 3/4˝

CAUTION

For guidelines in the use of Glycol Products.

Please refer to Section 8.4 on page 74

CAUTION

Scalding Risk: Manufacturer strongly recommends the use of an anti-scald mixing valve at domestic hot water outlet (boiler location) to reduce potential for scalding.

Contact Manufacturer for recommended models.

Check with local codes.

__________________________________________

Page 42

4.15.4

Zoning with zone valves

- In a valve based system, there is one circulator pump at the boiler and each heating zone has a zone valve which opens when the zone demands.

- Each thermostat is wired directly to the corresponding zone valve. Contacts in the zone valves provide a proper signal to the boiler when the valve is opened.

SECONDARY LOOP

(SPACE HEATING)

(SPACE HEATING)

Auto Fill Valve and Backflow

Preventer Valves are

NOT included (Field

Supplied).

Do not exceed

12"

See

Note

Do not exceed

12"

See

Note

Make-Up Water

Make-Up Water

P

P

Differential

Pressure By-Pass

Pressure By-Pass

Expansion tank

Expansion tank

Automatic air vent

Automatic air vent

Air separator

Air separator

Circulation pump

Circulation pump

Check valve

Check valve

Drain valve

Drain valve valve valve

Backflow preventer

Backflow preventer



Anti-scald rated

Mixing Valve

Mixing Valve

1 1/4 ”

1 1/4 ”

Min

Piping

Min

Piping

CH

CH

SUPPLY

SUPPLY

DHW INLET

DHW INLET

DHW OUTLET

DHW OUTLET

CH RETURN

CH RETURN

1. This piping diagram is meant to show system piping concept only. Installer is responsible for all equipment and detailing required by local codes.

2. All closely spaced tees shall be 12” (or 4 pipe dia) center to center spacing.

3. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees.

4. The minimum pipe size of DHW piping should be 3/4” diameter.

5. Install a minimum of 12 diameters of straight pipe upstream of all circulators.

6. Install a check valve on the return line to the boiler.

7. Manufacturer strongly recommends the use of an anti-scald mixing valve at domestic hot water outlet (boiler location) to reduce potential for scalding.Contact Manufacturer for recommended models. Check with local codes.

P

P


4.15 Plumbing Guidelines (continued)

4.15.5 Zoning with circulation pumps

- In a pump based system, each heating zone of has its own circulator pump which runs when the zone demands.

- Each zone thermostat goes to a controller which controls the pumps.

SECONDARY LOOP

(SPACE HEATING)

(SPACE HEATING)

Auto Fill Valve and Backflow

Preventer Valves are

NOT included (Field

Supplied).

Do not exceed

12"

See

Note

Do not exceed

12"

See

Note

1 1/4 ”

Expansion tank

Min

Piping

Air separator

Air separator

1 1/4 ”

Min

Piping

Make-Up Water

Make-Up Water

DHW INLET

DHW INLET

Check valve

Drain valve

Gate valve

Check valve

Drain valve

Gate valve

Page 43

Anti-scald rated

Mixing Valve

Anti-scald rated

Mixing Valve

CH

SUPPLY

CH

SUPPLY

DHW OUTLET DHW OUTLET

CH RETURN CH RETURN

1. This piping diagram is meant to show system piping concept only. Installer is responsible for all equipment and detailing required by local codes.

2. All closely spaced tees shall be 12” (or 4 pipe dia) center to center spacing.

3. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees.

4. The minimum pipe size of DHW piping should be 3/4” diameter.

5. Install a minimum of 12 diameters of straight pipe upstream of all circulators.

6. Install a check valve on the return line to the boiler.

7. Manufacturer strongly recommends the use of an anti-scald mixing valve at domestic hot water outlet (boiler location) to reduce potential for scalding.Contact Manufacturer for recommended models. Check with local codes.

Page 44

4.16

Pressure Relief Valve

External pressure relief valves must be installed.

Observe the following. Failure to comply with the guidelines on installing the pressure relief valve and discharge piping can result in personal injury, death or substantial property damage.

WARNING

Do not operate this appliance before the pressure relief valve supplied is installed with sufficient relieving capacity in accordance with the ASME Rating Plate on the boiler.

This hot water boiler is provided with 30 psi safety relief valve that complies with the ANSI/ASME Boiler and

Pressure Vessel Code, Section IV (“Heating Boilers).

(Model : CASE ACME F-82)

This safety relief valve (30 psi) is shipped loose for field installation.

An approved ASME HV Pressure Relief Valve must be installed on the DHW supply line as close to the unit as possible. Valve size 3/4”, maximum 150 psi. Not included with boiler.

For safety, the relief valve(s) must be installed into it’s designed location and not be removed or plugged.

Failure to comply with the guidelines on installing the pressure relief valves and discharge piping can result in personal injury, death or substantial property damage.

Direct the discharge piping of the pressure relief valve so that hot water will not splash on anyone or any nearby equipment. Attach the discharge line to the pressure relief valve and run the end of the line within

6-12″ (150-300mm) of the floor.

WARNING

DO NOT install a CH pipe line relief valve with a pressure higher than 30psi and DHW pipe line relief valve with a pressure higher than 150psi. This is the maximum allowable relief valve setting for the combination boiler.

Test the operation of the valve after filling and pressurizing system by lifting the lever. Make sure the valve discharges freely. If the valve fails to operate correctly, replace it with a new relief valve. Ensure that the discharge capacity of the pressure relief valve is equal to or greater than the maximum pressure rating of the combination boiler.

Ensure that the maximum BTU/H rating on the pressure relief valve is equal to or greater than the maximum input BTU/H rating of the combination boiler.

Pressure Relief Valve must be installed on the CH supply line & DHW outlet line as close to the unit as possible. (CH supply line: maximum 30psi, DHW outlet line : maximum 150psi). No other valves should be placed between the pressure relief valve and the appliance.

This appliance has a high-temperature shut off switch built in as a standard safety feature .Therefore a

“pressure only” relief valve is required.

3/4” 30psi Relief Valve


4.17

Disposal of Condensate

High efficiency gas condensing Boilers create condensation when operating. Condensation has acidic (pH) of approximately 4-5.

Condensate must be drained in accordance with all local regulations. Follow your local code with regards to the disposal of condensation.

One of 4 disposal methods must be followed

1. to floor drain

2. to neutralizer (optional kit)

3. to laundry tub

4. to condensate pump (field supplied)

If a neutralizer is installed, periodic replacement of the lime stone (or neutralizing agent) will be required. The rate of depletion of the lime stone varies upon usage of the boiler. During the first year of operation, please check the neutralizer every few months for depletion.

Apply only corrosion-resistant materials for the condensate drain lines such as 1/2˝ PVC, CPVC,

Polypropylene pipe or included plastic hose.

Condensate

Trap

Condensate drain pipe

NOTICE

Category II & IV water heaters must be installed with a means provided for the drainage of condensate.

Page 45

(View is as if side panel were removed)

AVIS

Catégorie II & ; IV chauffe-eau doit être installé avec une moyens prévus pour l’évacuation des condensats.

2 3

4

1

CAUTION

Condensate is mildly acidic (pH=5), and may harm some floor drains and/or pipes, particularly those that are metal. Ensure that the drain, drainpipe, and anything that will come in contact with the condensate can withstand the acidity, or neutralize the condensate before disposal. Damage caused by failure to install a neutralizer kit or to adequately treat condensate will not be the manufacturer’s responsibility.

Contact Manufacturer to order

Neutralizer Kit# A2123601

_________________________________________

Page 46

4.18 DHW Flow Restrictors

Flow Restrictors are factory installed. Rated at 3.2

GPM for the model 140 and 7.0 GPM for the model

199, both of these factory installed restrictors are white in color. For the 140, an additional flow restrictor, rated at 4.5 GPM, is blue in color and is packaged with the Product Accessories. See Section 1.

If 3.2 GPM is not sufficient for your model 140 installation, replace the factory installed white flow restrictor with the blue flow restrictor by following these instructions.

To replace the Flow Restrictor.

1. Being sure that the unit is completely shut off and drained, locate the DHW inlet adapter on the bottom of the appliance.

2. Pull the two pins to release the DHW inlet filter. See

Illustration. The flow restrictor is attached to the top of the filter assembly.

3. Remove the installed white flow restrictor and replace it with the blue flow restrictor included with the Product Accessories.

4. Reinstall the DHW inlet filter.

5. Re-insert the two pins.

6. Refill and restart your FT as per the Installation

Instructions.

WARNING

If the appliance has been filled and operational, then the gas, water and power must be completely shut off, and the unit must be drained before proceeding with this instruction. See Section 8 of this installation book.

Failure to do so could result in substantial property damage, sever personal injury, or death.

Flow Restrictor

Shown is the 140. The 199 is very similar.


4.19 Electrical Wiring Connections

FTCW140

Page 47

Manual Switch

L N

Terminal Block

0-10V

INPUT

T T

O / S

0 - 10V

External Input

Thermostat Connection

Outdoor

Sensor

WARNING

Install wiring and electrically ground boiler in accordance with authority having jurisdiction or, in the absence of such requirements, follow the National Electrical Code, NFPA 70, and/or CSA C22.1 Electrical Code-Part

1 in Canada.

ELECTRICAL SHOCK HAZARD — For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.

This appliance must be electrically grounded. Ensure the electrical receptacle that the combination boiler will be plugged into, is properly grounded; if wiring directly.

Do not attach the ground wire to either the gas or the water piping as plastic pipe or dielectric unions may isolate the Combination boiler electrically.

The wiring diagrams contained in this manual are for reference purposes only.

Refer to these diagrams and diagrams from external controls used with this appliance. Read, understand, and follow all wiring instructions.

Do not disconnect the power supply when the unit is in normal operation. Damage caused by freezing is not covered under the warranty.

Manual(Rocker) switch maximum allowable current for each circulator is 1.6 amps at 125VAC.

( Housing : Nylon #66 UL 94V-2 , Rocker : Nylon #66 UL 94V-2, Terminal : Copper Alloy )

Terminal block (External power connector) : DFT-20A-10P (20 amps at 300VAC)

Page 48

4.19 Electrical Wiring Connections (cont)

FTCW199

Terminal Blocks

Manual Switch

0-10V

INPUT

T T

O / S

MAIN POWER CH/BOILER PUMP

Main

Power

External

CH Pump

0 - 10V

External Input

Thermostat Connection

Outdoor

Sensor


4.20 DIP Switches

Document 4288D

ON

MIN Fire

MAX Fire

NG Natural

3” Vent Size

ON OFF

ON

OFF

OFF

ON

OFF

Normal Operation

Normal Operation

LP Propane

2” Vent Size

ON ON

OFF

ON

ON

ON

MBH 120 140 175 199

Table B DIP Switch Settings

Pump1 post circulating time (T1pv)

Pump2 post circulating time (T1pv)

Propane.

Shown is a

Model 140 with 3" Venting and using

Natural Gas System Control Setting

Maximum flame detecting voltage

Pre-purge time (Tp)

11. Now start the unit and adjust combustion as described in Section 4.12

<3s

60s

60s

<6s

<6s

2.4V

Figure D

Maximum 10s, minimum 1s

3s

10s

Gas Valve

Adjustment Port

-

+

12. Upon completion of set up, write in the correct

Conversion Date and the Technicians Name to the included gas conversion sticker. See Figure F.

Then apply that sticker adjacent to the rating plate.

FTCW

140

Figures E

Gas Valve

Adjustment Port

-

800.900.9276

•

Fax 800.559.1583


•

603.335.6300

•

FTCW

Fax 603.335.3355

199


•

905.238.0100

•

Fax 905.366.0130

www.Laars.com


4.21 Control Board, Electrical Diagram

Control Board

Page 49

Page 50

4.22 Ladder Diagram

Air

Pressure

Sensor

F/B

level


4.23 Electrical Connections

Connector

#, Location, Type

CN9

65001WS-12

CN6

LW6A4-03

CN1

SMW250-5D

CN4

LWD1140-06D

CN8

SMW250-04D

CN11

LWD1140-16

PIN Label

7

8

5

6

1

2

3

3

4

1

2

1

2

3

9-12

1

3

4

1

8

2

10

3

11

4

12

5

13

6

14

7

15

8

16

4

5

1

2

3

6

RS-485

FAN

MCU ISP

HWL

LWL

HD

TH

APS

EL

BL

HL

-

L

CP1

IT

L(HT)

GV

-

N

N

CP3/3Way

Description

GROUND

Power Supply Line

Not Used

Igniter

Pump : CH

Gas Valve

-

Power Supply Neutral

AC Power COM Line

3 Way Valve

RS485 +

GND

RS485 -

Not Used

GND

VDD

Fan power(start coil)

Fan power(end coil)

Fan speed feedback signal

GND

ISP /Reset port

ISP TOOL0 Data port

VCC

Not Used

Low Water Level Leakage Sensor

Central Heating Demand

Connect to the Display

Control(Thermostat)

Jump

Jump

Burner Limit

Condensate Block

HT SELV

HT (120V~)

HT (120V~)

HT (120V~)

HT (120V~)

HT (120V~)

HT (120V~)

-

HT (120V~)

HT (120V~)

HT (120V~)

HT (120V~)

SELV (5V)

SELV (5V)

SELV (5V)

-

SELV (30V)

SELV (14V)

SELV (30V)

SELV (30V)

SELV (14V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (12V~)

SELV (12V~)

SELV (5V)

SELV (14V)

SELV (14V)

SELV (14V)

SELV (14V)

SELV (14V)

Page 51

Page 52

Connector

#, Location, Type PIN Label

CN7

LWD1140-14

CN14

SMW250-09D

2

3

4

13

7

14

1

5

6

7

5

12

6

10

4

11

2

9

3

1

8

F.S

OP.S

DH.S

I.S

BG.S

ST.S

SP.S

DHM

CN3

SMW250-06D

CN5

SMW250-10D

8

1

2

4

5

6

2

3

9

1

APS

SENSOR

FLUX1

RPM

Description

Flame Detect Sensor

Operating water temperature sensor

DHW temperature sensor

Return temperature sensor

Venting (Exhaust) temperature sensor

Not Used

Over-Heat temperature sensor

GND

DHM Stepper motor position

VDD

DHM Stepper motor coil X phase

DHM Stepper motor coil Y phase

VDD

DHM Stepper motor coil /X phase

DHM power IWM Stepper motor coil /Y phase

Unuse

VCC

GND

Voltage Input

VCC

Water Flow Sensor

GND

FAN RPM Check

GND

HT SELV

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (14V)

SELV (14V)

SELV (14V)

SELV (14V)

SELV (14V)

SELV (14V)

SELV (14V)

SELV (14V)

-

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)

SELV (5V)


SECTION 5

Control Display and Operation

5.1 Control Dial and Buttons

Page 53

The Control Display

The Control Display has a Control Dial (E), 4 buttons (A, B, C, D), and a Liquid

Crystal Display (with 72 back-lit segments). This section of this manual gives instruction on how to navigate into the many functions of the FT and to change temperature set points, set system variables and controller parameters.

Status Light

(constant green when operating normally)

Buttons

A

B

C

D

E

Display

Power

Functionality

PRESS (Tap)

Turns Control Display

ON / OFF

PRESS and HOLD (5 seconds)

Modes Tap to return to menu

(If Display Power was On ) Status Display Mode

(If Display Power was Off )

Installer Mode

Hot Water

Central Heat

DHW Set-Point LOW Range

95 - 120°F (35 - 49°C)

DHW Set-Point HIGH Range

121 - 140°F (49.5 - 60°C)

CH set-point mode

(boiler only)

Toggle (°C / °F)

Scroll /

Select

Turn to scroll, tap to select

(clockwise or counterclockwise)

• Temperature Specifications

Operating ambient Temperature Range : -10 to 60°C.

Operating Relative Humidity up to: 90% at 40°C.

Shipping & Storage Temperature Range of : -20 to 80°C.

Button function Method function method

A turn control on/off press (tap)

B (if the display..... press/hold (5 sec) return to menu tap

C DHW setpoint low ran... press (tap) DHW high range press/hold (5 sec)

D CH setpoint... press (tap) toggle (C/F) press/hold (5 sec)

E turn to scroll..... press (tap)

Page 54

5.2

LCD Overview

CH

Central

Heat

Summer

Mode

(warm weather shutdown)

Outside

Temp Mode or 0-10V

Anti-Freeze

Mode

Domestic Hot Water Mode

Storage

Heating

Numeric Display

Lock Communicating

Pump

Status and

Installer

Modes

Flame

Signal

CH mode

Anti-freeze mode

Storage Heating mode

Lock mode

Communication

Summer mode

Status and Installer mode

Flame signal

Pump icon

Numeric Display

DHW mode

Outside temp or 0-10 V mode

Central Heat mode icon can be adjusted

Anti-freeze mode icon

Stored Water Being Heated, can be adjusted

Buttons-locked mode icon

Communication icon

Only DHW Mode, can be adjusted (warm weather shutdown)

The Status Mode or the Installer Mode is Active (all parameters)

Flame Signal icon

Water pump operation (CH or DHW) icon

Number and character display, to display all parameters

Combination boiler Set Point, can be adjusted

Operating by outside temperature or 0-10V

The LCD will illuminate when a user action is detected (a button is pressed) and will turn back off after 20 seconds.

* NOTE: The display will not allow changes when the lock mode is activated.

To exit the Lock mode, press the button.

WARNING

Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that may have been under water.


5.3

Operating Mode

Operating Mode

After the Power is turned on, and/or the Control Display is turned on

, the Control Display will go through a ‘Start Up’ checklist and briefly show a sequence of diagnostic codes before entering into the ‘Operating Mode. It will then display the following information.

Page 55

Indicate

Current Operating Temperature

Temperature sign Celsius or Fahrenheit letter

Display and Controller are communicating

If flame detected

If pump is operating

Outdoor sensor or 0-10V

Example

110°F

°C or °F

Page 56

5.4

Status Display Mode

AUTODESK � � � � � � � � � �

Digital Display

Status Display Parameter

�� 

O:ot

Outdoor temperature

A: Li or A: GA Flow unit b: It

�� AUTODESK ��

Description

Current Outdoor temperature

Current flow value(Li: L/m, GA: GPM)

CH Return Water Temperature Current Return Water Sensor Temperature

C: Fr d: Lc

Fan rpm

Lock mode

Current fan rpm value

Lock mode ON/OFF

E: oP

F: dH

H: Eh

I : St

J: oH

OP temperature

DHW temperature

Exhaust temperature

N/A

Overheat temperature

Current OP temperature

Current DHW temperature

Current Exhaust temperature

Not Used (Default is 0)

Current Overheat temperature

1: PH

Supply power time

Supply power time x 100 hour

L: rt

2: rh

3: rH

Burner

Operation

Time

Burner operation time

Burner operation time

Burner operation time x 1 hour

Burner operation time x 1,000 hour

4: It

5: IH

Ignition cycles

Ignition cycles

Ignition cycles x 10 times

Ignition cycles x 10,000 times

1st Icon 2nd Icon 3rd Icon

P: Ou

Displays output condition for internal primary pump and three way valve.

- Off

Not Used

Pump

- On

To change any of the above listed Status Parameters,

Press and Hold Button B

to get into the Status Display Mode.

Rotate Dial E until you find the Parameter that you wish to change. Tap Dial E to enter that Parameter.

Adjust to the setting that you require and then press (tap) Dial E to save and to Exit.


5.5 DHW Set Point Change Mode

DHW Set Point Change Modes

The display shows the following information when changing water heating temperature set points.

Changing between Celsius and Fahrenheit

When the button D is pressed (for more than 5 seconds), temperature unit will toggle between °C and °F.

Page 57

Indicate

Current DHW set-point temperature


If display is communicating with the main controller normally, the communication icon will be indicated.

When DHW set-point range is high : from 121°F (49.5°C) to 140°F (60.0°C)

When changing DHW setpoint, the DHW icon will flash

Example

120°F

°C or °F

H . 140°F

S24

* Default DHW set-point is 120°F (49°C)

• DHW 95-120°F (35 - 49°C) LOW range (Default)

-To change LOW range, press the C Button. The DHW icon and current DHW LOW will flash (a flashing value means it can be changed).

-Turn dial E clockwise to increase and counterclockwise to decrease until desired temperature is reached.

-Press dial E to save setpoint changes.

• DHW 121 - 140°F (49.5 - 60°C) HIGH range

-To change HIGH range, press and HOLD

the C button for more than 5 seconds. The DHW icon and current DHW HIGH will flash (a flashing value means it can be changed).

-Turn dial E clockwise to increase and counterclockwise to decrease until desired temperature is reached.

-Press dial E to save setpoint changes and to Exit.

DANGER

Scalding may occur within 5 seconds at a setting of 140°F (60°C). Water temperatures over 125°F can cause severe burns, or death from scalding. Children, disabled, and elderly are at highest risk of being scalded. Read all instructions before setting temperature at appliance. Feel water before bathing or showering.

Manufacturer strongly recommends the use of an anti-scald mixing valve at domestic hot water outlet (boiler location) to reduce potential for scalding.Contact Manufacturer for recommended models. Check with local codes.

Page 58

5.6 CH Set Point Change Mode

Changing between Celsius and Fahrenheit

When the button D is pressed (for more than

5 seconds), temperature unit will toggle between

°C and °F.

Indicate




If flame detected

If pump is operating

When changing CH Setpoint, the CH Icon will flash

Example

110°F

°C or °F

Default CH set-point is 120°F (49°C)

CH set-point range is 86 - 180°F (30.0 ~ 82.0°C)

To change CH Setpoint,

press the D desired temperature is reached.

Press E dial to save changes and to Exit.

button. The CH Icon and current

CH Setpoint will flash.

Turn the E dial clockwise to increase, and counterclockwise to decrease CH setpoint, until

5.7 Storage Mode

Indicate




If flame detected

Storage mode indication

Example

110°F

°C or °F

If Pump is operating

To change Storage Mode Temp,

First turn OFF the power to the Control Display.

Then Press and Hold Button B

to get into the Installer Mode.

Rota te Dial E until you find

5:St

Tap Dial E to enter Storage Mode. Storage Mode indicates that the boiler is heating the water held in the internal storage tank. When Storage Mode is active, the display will appear as shown.

Turn the E dial clockwise to increase, and counterclockwise to decrease setting.

Press E dial to save changes and to Exit.


AUTODESK � � � � � � � � � �

5.8 Installer Parameters

�� 

To c hange any of the Installer Parameters,

Start by turning

OFF

the Power to the

Display Control.

Then, with the power OFF, Press and HOLD (more than 5 seconds) the Button B

Installer Mode. to get into the

Rotate Dial E until you find the Installer Parameter (full list on facing page) that you wish to change.

Tap Dial E to enter that Parameter.

Adjust to the setting that you require and then press (tap) Dial E to save and to Exit.

Finish by pressing button B

Page 59

Page 60

16:cH

17:cL

18:dH

19:cb

20:db

21:PP

22:Po

23:PF

24:SF

25:So

5.8 Installer Parameters

Index

1: EH

2: cE

3: In

4: Fu

5: St

6: OH

7: OL

8: FH

Parameter

History entry

Clear Error History

System initialize

Flow unit

Heat storage function

Maximum Outdoor

Temperature

Minimum Outdoor

Temperature

Max fan

9: FL

10: dr

11: dI

12: bt

13: Ft

14: bo

Min fan

Delete running time

Delete igniting times

Outside Unit Function

Delay Time (boost time)

Delay time for heating burner operation

Setting temperature of burner ON.

15: OF

26:dt

27:PE

28: HA

29: AP

30: dP

Description

History fault code (E0~E9)

Clearing of error History buffer

System initialize to default gallon / liter

Heat storage function On/Off

Range: (Minimum Outdoor Temperature + 9°F) to 110°F Default 68°F (20°C)

Range: -4°F to (Maximum Outdoor Temperature -9°F)

Adjusts Maximum Fan Speed

Range: -30 - +30

Adjusts Minimum Fan Speed

Range: -30 -+30

Delete running time

Delete igniting times

When heating in the outside unit function for the first time, there will be a delay.

(0~120 min, Default 0)

Burner does not operate during the delay time when the burner is turned off due to the temperature during heating operation. (0~20 min, Default 1 min)

Heating temperature setting during heating operation –

Operate in burner ON temperature setting Range:

-12.7°C(9°F)~-2.7°C(27°F), Default 2.7°C(27°F)

Setting for Heating

Maximum Temperature

Setting for Heating

Minimum Temperature

Setting for Hot Water

Maximum Temperature

Range: 9°F less than Minimum Temperature to 180°F, Default 180F

12.7°C less than Minimum Temperature to 82°C, Default 82°C

Range: 86°F to (9 degrees °F less than Maximum Temperature, Default 86°F

30°C to (12.7degrees °C less than Maximum Temperature, Default 30°C

49°C(120°F)~60°C(140°F), Default 60°C(140°F)

Heating Combustion Rate 50%~100%, Default 100%

Hot Water Combustion Rate 50%~100%, Default 100%

Pump Post-Purge Time

Pump on Time

Pump off Time

Heat storage off

Temperature

(Heating Pump) 1min ~ 60min, Default 40min

(Heating Pump Repeat ON Time) 1 min ~60 min, Default 5 min

(Heating Pump Repeat Off Time) 0min ~60 min, Default 10 min

60°C(140°F)~75°C(167°F),Default(70°C)158°F

Heat storage on

Temperature.

Delay time when switching from DHW mode to CH mode

(off Temperature-Setting Temperature) -12.7°C(9°F)~2.2°C(36°F),

Default (-2.7°C) 27°F

Range: 0 – 2 minutes,Default 2min

Internal CH Pump Post-

Purge Time,

T/T Satisfied

High Altitude setting

Allows the user to set the appliance pump post purge time once the appliance CH setpoint and thermostat are satisfied. Range: 1-5 minutes,Default 1min

(Normal)0<1<2<4 (High)

Internal CH Pump and

3-way valve Pump Test

Mode

Internal CH Pump and

3-way valve Pump Test

Mode

DHW Timeout Feature

This function sets the time to run both the Internal CH and 3-way valve pumps to purge air from the system. Range: 1 – 30 minutes ,

Default 5min

Turn this function on to activate Internal CH and 3-way valve pump testing.

Only works in installation mode. Turns off when in normal mode.

Range: 0~12 time, '0' OFF, Default: 4 time

Default OFF


5.9 Outdoor Reset Adjustment

Outdoor Reset varies the control setpoint based on the outdoor temperature. The reset function works as shown in Figure ‘CH Outdoor Reset’. When the outdoor air temperature reaches 6:OH “high outdoor temperature setpoint”, the control point setting is adjusted to 17:cL “low boiler temperature setpoint”.

When the outdoor air temperature reaches 7:OL “low outdoor temperature setpoint” the control setpoint is adjusted to 16:cH “high boiler temperature”.

Default outdoor reset setpoint is 100°F (38°C)

The Outdoor Temperature Mode Icon on the display will flash if an Outdoor Sensor or 0-10 Volt is not connected to the appliance.

To check the CH Target Temperature while using

Outdoor Temperature Mode, press the button while the appliance is operational and the display panel is powered on.

Operating condition

CH Outdoor Reset

Connect to terminal strip as outlined 4.17 Electrical Connections.

NOTE: 0 - 10VDC terminals may not be used for both outdoor reset and 0 - 10VDC temp setpoint simultaneously.

5.10

External Set Point Temperature Control

A signal from a building management system may be connected to the appliance to enable remote control. This signal should be a 0-10 volt DC signal. When this input is enabled, a building control system can be used to control the set point temperature of the appliance.

The control interprets the 0-10 volt signal as follows; when the signal is between 0 and 1.5 volts, the appliance will be in standby mode, not firing.

When the signal rises above 1.5 volts, the appliance will ignite. As the signal continues to rise towards its maximum of 10 volts, the appliance will increase in set point temperature. Adjust 16:cH and 17:cL to set MIN and MAX boiler water temperatures respectively.

Connect a building management system or other auxiliary control signal to the terminals marked for this purpose on the appliance terminal block (shown in Piping Diagrams, this manual). Caution should be used to ensure that the 0-10 VOLT + connection does not become connected to ground.

Connect to terminal strip as outlined 4.17 Electrical Connections.

NOTE: 0 - 10VDC terminals may not be used for both outdoor reset and 0 - 10VDC temp setpoint simultaneously.

Page 61

Page 62

5.11 Error Mode

Indicate

Error ‘ Er : ’ will flash

Error Code


Example

Er:11

Er:11

NOTE: When communication between the Control Display and the main controller is lost, the

will not be displayed.

Flashing


Page 63

SECTION 6 Error Codes

6.1

Error Code Tables

Error

Code

10

11

16

20

28

32

33

Error Code Descrip tion

Flame has Extin

guished 8 (Eight)

Times

Ignition has Failed 10

(Ten) Times

Condensate – Closed is Normal, Open is

Fault (Condensate

Drain Trap)

-

Operating Temperature

Sensor detects Water

Temperature Greater than 203°F (95°C)

Overheat Sensor Open or Short

DHW Sensor Open or

Short

CH Temperature Sen

sor Open or Short

Possible Remedies

Recover methods

Press the Power button to clear the Error Code.

If Error happens again:

1. Monitor the gas pressure to the appliance while in operation. Ensure pressure is be

tween 3.5 and 14” WC.

2. Check gas valve wire. Ensure connection is secure.

3. Check flame detection sensor. Ensure connections are secure. Normal operating set

tings are more than 2.5DC before ignition, less than 2.5DC after ignition.

4. Check vent terminations. Ensure there are no blockages.

5. Assure that the flame is stable when lit.

6. If the problem persists, replace the main control.



1. Monitor the gas pressure to the appliance while in operation. Ensure pressure is be

tween 3.5 and 14” WC.

2. Check gas valve wire. Ensure connection is secure.

3. Check flame detection sensor. Ensure connections are secure. Normal operating set

tings are more than 2.5DC before ignition, less than 2.5DC after ignition.

4. Check igniter transformer for proper connection.

5. Clean the spark igniter with steel wool to remove oxides. Ensure proper separation (3-4 mm).

6. Replace the spark igniter if damaged.

7. Assure that the flame is stable when lit.




1. Check if dip switch Max Fire setting is ON. Switches 6 and 7 should be OFF for normal operation.

2. Check if CH inlet pipe is blocked. Ensure there is enough water flowing to the appli

ance.

3. Check Operating Temperature sensor at CH heat exchanger outlet. If resistance is zero, replace the sensor.

4. If the problem persists, replace the main control


1. Check Condensate and main controller connections. Ensure all are secure.

2. Check Condensate sensor resistance. If resistance is zero, replace the switch.

3. Check Condensate hose. Ensure it is connected and in good condition.

4. Check condensate line and termination for blockages.

5. Check Vent Pipe for blockages.


This Error Code will go away when CH temperature decreases.


1. Check overheat temperature sensor. Ensure connections are secure.

2. Check overheat sensor resistance. If resistance is zero, replace the sensor.


This Error Code will go away when outlet DHW temperature decreases.


1. Check DHW outlet temperature sensor. Ensure connections are secure.

2. Check sensor resistance. If resistance is zero, replace the sensor.


This Error Code will go away when CH temperature decreases.


1. Check CH temperature sensor. Ensure connections are secure.

2. Check CH sensor resistance. If resistance is zero, replace the sensor.


Hard

Lock

Hard

Lock

Hard

Lock

Hard

Lock

Soft Lock

Soft Lock

Soft Lock

Page 64

Error

Code

35

36

37

38

40

41

42

43

44

45

61

Error Code Description

Venting (Exhaust) Sensor

Open or Short

Abnormal Supply Voltage

Abnormal Supply Frequency

Possible Remedies

Recover methods

This Error Code will go away when exhaust temperature decreases.


1. Check Venting (exhaust) temperature sensor. Ensure connections are secure.


3. Check vent pipes for blockage.


Supply voltage is too low to operate. This Error Code will go away when supply voltage returns to normal operating range.


1. Ensure appliance is properly wired to a power source meeting the requirements on the rating plate.

2. If problem persists, replace the main control

Supply frequency is too high to operate. This Error Code will go away when supply frequency returns to normal operating range.



2. If problem persists, replace the main control.

Soft Lock

Soft Lock

Soft Lock

Error Appears When Control

Stores Data, but Data is not

Saved


Replace the main control.

Hard Lock

Gas Leakage is Detected for

Greater than 5 seconds, or three times within 10 minutes

Fan Speed too High with

Flame On

LWCO Jumper disconnected

Burner Overheat Switch Open

Air Pressure Sensor (APS)

Fault


Open

Fan Speed Feedback Signal

Abnormal

IMPORTANT: If you smell gas, STOP! Follow the instructions on page 2, this manual, and call a qualified service technician or the fuel gas utility.



1. Check the appliance cover. Ensure it is secure.

2. Check gas connections for leakage with a soapy solution. Fix any leaks.

3. Check condition of the burner assembly.




1. Check the vent connections for blockages.

2. Check the burner assembly.

3. Check fan operation. If fan appears to be operating normally but RPMs are too high, replace the fan.




1. Ensure the LWCO jumper wire is properly connected.




1. Check burner overheat switch connections. Ensure connections are secure.

2. Check switch resistance. If resistance is zero, replace the switch.


Press the power button to reset

If error happens again:

1. Check the vent pipe for blockages.


3. If error do not clear, replace the APS


Check the aps connection.

1.If APS is closed and connections are secure, check APS connection.

2. If the problem is not happen, replace the APS


This Error Code will go away when the condition is remedied.


1. Check the connections to the fan. Ensure all are secure.

2. If the fan does not rotate during the ignition sequence, check for AC8V~26.5V power at the fan connection. If AC8V~26.5V power is present at the control, replace the fan. If the blower does not have AC8V~26.5V power, check power at the control. If

AC8V~26.5V power is not present at the control, replace the control.


Hard Lock

Hard Lock

Soft Lock

Hard Lock

Hard Lock

Soft Lock

Soft Lock

Error

Code

35

36

37

38

40

41

42

43

44

45

61


Venting (Exhaust) Sensor

Open or Short

Abnormal Supply Voltage

Abnormal Supply Frequency

Possible Remedies

Recover methods

This Error Code will go away when exhaust temperature decreases.


1. Check Venting (exhaust) temperature sensor. Ensure connections are secure.


3. Check vent pipes for blockage.


Supply voltage is too low to operate. This Error Code will go away when supply voltage returns to normal operating range.



2. If problem persists, replace the main control

Supply frequency is too high to operate. This Error Code will go away when supply frequency returns to normal operating range.



2. If problem persists, replace the main control.

Soft Lock

Soft Lock

Soft Lock

Error Appears When Control

Stores Data, but Data is not

Saved


Replace the main control.

Hard Lock

Gas Leakage is Detected for

Greater than 5 seconds, or three times within 10 minutes

Fan Speed too High with

Flame On

LWCO Jumper disconnected

Burner Overheat Switch Open


Fault


Open

Fan Speed Feedback Signal

Abnormal

IMPORTANT: If you smell gas, STOP! Follow the instructions on page 2, this manual, and call a qualified service technician or the fuel gas utility.



1. Check the appliance cover. Ensure it is secure.

2. Check gas connections for leakage with a soapy solution. Fix any leaks.

3. Check condition of the burner assembly.




1. Check the vent connections for blockages.

2. Check the burner assembly.

3. Check fan operation. If fan appears to be operating normally but RPMs are too high, replace the fan.




1. Ensure the LWCO jumper wire is properly connected.




1. Check burner overheat switch connections. Ensure connections are secure.

2. Check switch resistance. If resistance is zero, replace the switch.


Press the power button to reset

If error happens again:



3. If error do not clear, replace the APS


Check the aps connection.

1.If APS is closed and connections are secure, check APS connection.

2. If the problem is not happen, replace the APS




1. Check the connections to the fan. Ensure all are secure.

2. If the fan does not rotate during the ignition sequence, check for AC8V~26.5V power at the fan connection. If AC8V~26.5V power is present at the control, replace the fan. If the blower does not have AC8V~26.5V power, check power at the control. If

AC8V~26.5V power is not present at the control, replace the control.


Hard Lock

Hard Lock

Soft Lock

Hard Lock

Hard Lock

Soft Lock

Soft Lock


SECTION 6. Error Codes

(continued)

Page 65

Error

Code

66

68

70

72

76

80

81

85

94


Mixing Valve Initial Value

Error

(Mixing Valve Cannot Return to Initial Position)

Mixing Valve Operation Error

(Mixing Valve Stuck in Initial

Position)

Register, Ram, Rom, I/O

Port, AD Abnormal, Important

EPROM Data or Safe Data

Abnormal

Flame Signal Detected before

Ignition

Poor Communication

Low Water Level Sensor

(Low Water Level Detected

Four (4) Consecutive times)

Low Water Level Circuit

Freeze Protection

(Appliance has detected water temperature below

34°F(1°C)

Exhaust Sensor detects Vent

Temperature is Greater than

190oF (88oC)

Possible Remedies

Recover methods



1. Turn power OFF and ON at the main power switch internal to the appliance.

2. Check wiring connections to mixing valve. Ensure all are secure.

3. Replace mixing valve.





2. Check wiring connections to mixing valve. Ensure all are secure.

3. Replace mixing valve.








1. Check the appliance cover. Ensure it is secure. Flame detection sensor can detect an external light source.

2. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5DC before ignition, less than 2.5DC after ignition.




1. Check connections from main control to display panel.

2. If the problem persists, replace the display and/or the main control.



1. Ensure all valves are open to the appliance and there are no leaks.

2. Ensure all air has been purged from the system.

3. Check wiring connections to low water level sensor. Ensure all are secure.

4. Check low water level sensor resistance. If resistance is zero, replace the sensor.




1. Ensure all valves are open to the appliance and there are no leaks.




This Error Code will go away when the freezing condition is remedied.


1. Ensure appliance is located in a mechanical room protected from freezing conditions.

2. Ensure all valves are open to the appliance, there are no leaks.






1. Check if dip switch Max Fire setting is ON. Switches 6 and 7 should be OFF for normal operation.

2. Check exhaust temperature sensor. Ensure connections are secure.


4. Check exhaust vent for blockage.

5. If the problem persists, replace the control.

6. If the problem persists, replace the heat exchanger.

Soft Lock

Soft Lock

Soft Lock

Soft Lock

Soft Lock

Soft Lock

Soft Lock

Soft Lock

Soft Lock

Page 66

6.2 Fault Tree Analysis

1. Flame detection


6.2 Fault Tree Analysis (cont)

2. Gas Detection

Page 67

3. ‘Storage’, ‘DHW’, ‘OP’, ‘CH overheat’, ‘Exhaust heat’ Sensor detects

Error code

E32

E33

E35 contents

DHW NTC open or short

OP NTC open or short

Exhaust NTC open or short

Page 68

SECTION 7

Trouble Shooting

7.1 Diagnostics

Question Answer

Make sure that the ON/OFF button on the Control Panel has been turned ON.

Burner does not ignite when the hot water is opened.

Water is not hot enough.

Water is too hot.

Hot water temperature fluctuates at the opened tap.

If the monitor on the Control Panel is blank, make sure the power cord is plugged and 4A fuses on the main controller in the units are good.

Make sure that there is water supplied to the unit. The unit activates once the inlet water flow is over 0 gpm.

Make sure the cold and hot water lines are not plumbed in reverse side.

Make sure that the cold water and gas supply lines are opened.

Make sure that the water lines are not frozen.

Check that the setting temperature on the unit is not too low

Make sure that the filter in the cold water supply line is not clogged with debris.

Make sure that the gas supply type is correct.

Check the supply and manifold gas pressures are in accordance with specifications.

Make sure that the water flow sensor with three wires has been properly connected on the top of heat exchanger.

Make sure that the setting temperature on the unit is not too hot.

Make sure that the filter in the cold water supply line is not clogged with debris.


Make sure that the filter in the cold water supply line is clean.


Check the supply gas pressure is sufficient.

The blower is still oper

ating after the combustion stops.

This is normal because the blower keeps operating for 1 minute to vent

(exhaust) the flue gas from the chamber once the combustion has stopped.

Temperature Rise too Quickly tion.

DHW flow is initiated

Abnormal sounds come from unit during opera-

Heater doesn’t fire when

CH Temp drops lower than expected before unit re-fires

Occurs when supply water temperature in heat exchanger rises faster than

2°F per second during the first two minutes the burner is on. Automatically resets after a few minute delay or using manual reset on control panel. See message displayed TEMPERATURE SENSOR and follow procedure for loose connections.

A leak of combustion gas between sealed chamber and exhaust tube inside the unit. Call a qualified service technician for evaluation.

Improper venting termination, make sure that the venting termination com

plies with specification.

Check the supply gas pressure is sufficient. Insufficient gas pressure will cause unstable burner flame and noise.

Potentially the domestic water flow is too low. Min allowable is 0.75 gpm.

Check in Manual Mode OTO AGA

Change Parameter 14:bo to 10degrees F (5.5 degrees C)


Page 69

7.2

Suggested Corrective Actions

This controller is able to record information about the boiler’s condition at the time of the five previous faults or errors. Refer to the Section ‘5.10 Error Mode’ of this manual.

Display

Nothing shown on display control panel and blower running at full speed.

Condition

Control is not receiving power.

Diagnostic

Check wiring for short circuit or incorrect wiring.

Check transformer connection to the control per wiring diagram. Check for 12V output of transformer.

Check service switch and/or circuit breaker to boiler turned is on.

Corrective Action(s)

Correct wiring per wiring diagram including connection of transformer to the control.

Replace transformer if it is receiving

120V, but not outputting 12Vac.

Turn on service switch to power boiler.

Nothing is shown in display control panel and no other boiler components are operating.

Control is not receiving 120V power.

Nothing is shown on control panel, but boiler is operating.

Occurs when the communication is lost from the control to the display.

Is there 120 Volts at the service switch?

Is the ON/OFF

POWER

SWITCH (inside boiler case) turned on?

Check for 120 volts at the line voltage terminal block located inside the boiler case.

Troubleshoot and correct the power supply to the manual switch.

Turn ON the manual power switch inside the boiler case.

Correct wiring inside the boiler case using the wiring diagram in this manual.

Inspect the fuse.

Replace if necessary.

Check for loose connections and proper pin alignment/ engagement on the

Control's plug.

Cycle power off and on using boiler power switch and check for operation.

Replace the fuse with proper part found in the replacement part section of this manual. If fuse blows again recheck wiring per diagram.

Check for continuity on the wire harness from the display to the control.

See repair parts section for proper replacement part.

Replace with new display module.

See repair parts section for proper replacement part.

Page 70

Fault

TEMPERATURE

SENSOR

FLAME FAULT

BLOWER FAULT

IGNITION

FAULT

GAS VALVE

FAULT

Condition

Occurs when a temperature sensor has electrically shorted

(SHORT) or has become disconnected

(OPEN).

Diagnostic

Reset using manual reset screen on control panel. (Power button)

Corrective Action(s)

Check all the temperature readings of the boiler on the DIAGNOSTICS -

TEMPERATURES menu to determine if any sensors are currently displayed as SHORT or OPEN.

Check wire harness for loose connections and pin engagement at sensor Connection and Control module.

If problem persists after checking items above replace Control. Refer to repair parts section for kit number.

Occurs when flame is detected when there should be no flame.

Blower unable to reach required speed or does not reach 0

RPM when turned off.

Even if boiler went through

8 ignitron attempts, but cannot detect flame

The Control has detected a problem with it gas valve output circuit.

Reset using manual reset screen on control panel.

(Power button)


(Power button)

Power off and on.


(Power button)

Burner may be operating too hot due to incorrect combustion. Inspect flame and conduct combustion test.

Check for flame at burner via flame current with burner off. Turn boiler off and watch flame through observation port. If flame continues after shutdown replace gas valve.

Check wire harness for loose connections and pin engagement at blower.

Connections.

Boiler in standby mode and blower not running. If BLOWER SPEED is not 0

RPM then replace blower.

If blower does not rotate during ignition sequence check for 120V power at blower connection. If 120Vac power at blower motor and it doesn't start replace blower. Check power at

Control. If 120Vac is not present at

Control when boiler is powered replace

Control.

Dirty burner and/or heat exchanger will cause high back pressure and poor ignition.

Visual inspection of flue ways often will not be able to diagnose condition.

Check incoming gas pressure with boiler off and at Max fire. Adjust within limits on rating label.

Check for flue pipe and intake pipe restrictions or blockage

Check burner fasteners and gaskets

Check air intake pipe and proper propane orifice

Check wire harness connections between gas valve and Control.

If lockout re-occurs replace Control.


Page 71

SECTION 8 Maintenance

8.1

Annual startup &

general maintenance

Regular Maintenance

- This Manual should be placed in a safe and dry location near the Combination boiler. Maintenance instructions should be carried out by the following guidelines.

Maintenance procedures [ Daily ]

- Check the power source .

Make sure that the power cord is correctly connected. The main power line is connected to the manual switch box inside a combination boiler.

(Power line through the strain relief in the bottom of the combination boiler casing and fix it.)

- Check the status of the control panel

Check status of the power supply. Please check for any debris on the button.

- Check that the boiler casing is closed.

Check if there is any problem with the Combination boiler casing and the two upper and lower screws are tightened well. Combination boiler casing must be closed while it is running.

WARNING

To prevent potential severe personal injury, death or substantial property damage, remove all contaminated materials.

If contaminants are found:

Remove products immediately from the area.

In order to check the status of Combination boiler, call a qualified service technician to inspect the combination boiler for possible damage from acid corrosion.

WARNING

DO NOT store combustible materials, gasoline or any other flammable vapors or liquids near the water heater. Remove them immediately or store them other places.

Maintenance procedures [ Monthly ]

- Check the vent pipe.

Visually inspect the flue gas vent piping for detecting any signs of blockage, leakage or deterioration of the piping. Please contact a qualified service technician immediately if you find any problem.

- Check the air inlet pipe.

Visually inspect the air inlet to be sure it is unobstructed. Inspect entire length of air piping for ensuring that piping is intact and all joints are properly sealed. Call your qualified service technician if you notice any problems.

- Check the relief valve.

Inspect the Combination boiler relief valve and the relief valve discharge pipe for any signs of weeping or leakage. If the relief valve often weeps, immediately contact your qualified service technician for inspecting the Combination boiler and system.

- Check the condensate outlet.

While the Combination boiler is running, check the discharge end of the condensate drain tubing.

Make sure that no flue gas is escaping from the condensate drain tubing.

If flue gas is continuously escaping, it is a serious problem. Call your qualified service technician for inspecting the Combination boiler and condensate line. Also, refill the condensate trap if problem persists regularly.

-

Check the vent terminal screen vent

(rodent screen).

If you encounter a problem of combustion specifications, visually inspect the terminal screen.

And then replace it with spare parts or clean the screens.

Page 72

- Check the air vent

If the air vent valve seems to work freely without leaking, replace cap “A” by twisting all the way on.

Loosen cap “A” one turn to allow vent to operate.

If vent does not operate correctly, replace the vent.

seat. If the valve continues to weep, contact your qualified service technician for inspecting the valve and system. If water does not flow from the valve even though you have lifted the lever completely, the valve or discharge line may be blocked. Shut down the Combination boiler immediately. Call your qualified service technician to inspect the combination boiler and system.

- Check the burner state

You can clean the exterior of burner. However, if you need to clean the inside of the burner stage, you should call a qualified service technician.

Maintenance procedures [Every 6 Months]

- Check the boiler piping (gas and water)

Visually inspect for leaks around internal water piping. Also inspect external water piping, circulators, relief valve and fittings. Immediately call a qualified service technician to repair any leaks. Leaks must be fixed by a qualified service technician immediately.

Failure to comply with this instruction could result in severe personal injury, death or substantial property damage.

- Check the pressure relief valve

WARNING

Leaks must be fixed by a qualified service technician immediately. Failure to comply with this instruction could result in severe personal injury, death or sub

stantial property damage. This discharge line must be installed by a qualified heating installer or a service technician.

Before proceeding, verify that relief valve outlet has been piped to a safe place of discharge, avoiding any possibility of scalding from hot water. If water flows freely, release the lever and allow the valve to seat. Watch the end of the relief valve discharge pipe to ensure that the valve does not weep after the line has had time to drain. If the valve weeps, lift the seat again to attempt to clean the valve


Page 73

8.2

Flushing the Combination Boiler

Flushing the Heat Exchanger is a complicated procedure that should only be done by an authorized technician or licensed professional. Keep in mind that improper maintenance can void your warranty.

V3

V1

V4 V2

1. Disconnect electric power to the combination boiler.

2. Close the shutoff valves on both hot water outlet and cold water inlet lines. (V1 & V2)

3. Connect one hose “D1” to the valve “V3” and place the free end in the bucket. Connect one of the hoses “D3” to the circulation pump outlet and the cold water inlet line at the valve “V4”. Connect other hose “D2” to the circulation pump inlet and place the free end in the bucket.

4. Pour the cleaning solution into the bucket. Place the drain hose

(D1) and the hose (D2) to the pump inlet into the cleaning solution.

5. Open service valves (V3 & V4) on the hot water outlet and cold water inlet lines.

6. Turn on the circulation pump (Operate the pump and allow the cleaning solution to circulate through the combination boiler for at least 1 hour at a rate of 4 gallons per minute.)

7. Rinse the cleaning solution from the combination boiler as follows:

- Remove the free end of the drain hose (D1) from the bucket.

- Close service valve, (V4), and open shut off valve,

(V2).

Do not open shut off valve, (V1).

- Allow water to flow through the combination boiler for

5 minutes.

- Close shut off valve (V2).

D1

D2

8. Disconnect all hoses.

9. Remove the cold water inlet filter from the combination boiler and clean out any residues.

10. Reinsert the filter and ensure the filter cap is securely tightened.

11. Connect electrical power to the combination boiler.

D3

Page 74

8.3 Draining and Cleaning

Flow Restrictor

Cold Water

Inlet Filter

CH Return Filter

FTCW

140

FTCW

199

1. Place a bucket under the appliance to collect the residual water inside the combination boiler.

2. Press the Power button on the front control panel to turn OFF the electrical power to the combination boiler.

3. Turn off the gas valve.

4. Close water supply valve on the inlet to the appliance. If there is no valve, turn off main water valve.

5. Open the hot water faucets completely.

6. Remove the CH (Central Heat) return filter by removing the metal pin and then pulling the filter downward.

7. Remove the Cold Water Inlet filter by removing the two small pins and then pulling the filter downward at an angle. If your system is using a flow restrictor, be sure that the flow restrictor is also cleaned and placed back into the system during re-assembly.

8. Clean them with a toothbrush and clean running water.

9. To refill the combination boiler, reassemble the filters back into the combination boiler and reverse steps 7 back to 1.

8.4 Freeze Protection

FT Series Boilers are certified for indoor use only, and are not design-certified for placement outdoors.

Proper precautions for freeze protection are recommended for boiler installations in areas where the danger of freezing exists.

Power outage, interruption of gas supply, failure of system components, activation of safety devices, etc., may prevent a boiler from firing. Any time a boiler is subjected to freezing conditions, and the boiler is not able to fire, and/or the water is not able to circulate, there is a risk of freezing in the boiler or in the pipes in the system.

When water freezes, it expands which may result in bursting of pipes, or damage to the boiler, which could result in leaking or flooding conditions.

NOTICE

Different glycol products may provide varying degrees of protection. Glycol products must be maintained properly in a heating system, or they may become ineffective. Consult the glycol specifications, or the glycol manufacturer, for information about specific products, maintenance of solutions, and set up according to your particular conditions.

NOTICE

Not all pumps are capable of maintaining the reduced temperature rise required with glycol concentrations greater than 35%.


Page 75

Freeze Protection (continued)

WARNING

SECTION 9 Installation Check

9.1 Quick View

Do NOT use automotive antifreeze or ethylene glycol. Use only inhibited propylene glycol solutions which are specially formulated for hydronic systems. Ethylene glycol is toxic and can attack gaskets, seals, and metallic components used in hydronic systems. A correct glycol concentration and inhibitor level is critical.

Before Installing

- Make sure that there is enough space for installing

Water and gas line.

Verify vent/air termination is located as required.

- All models need for propane Conversion which requires a separate gas conversion manual.

Some items to consider are

• Consider the effects of reduced heat transfer and an increase in head pressure against the system circulator. For example: A 30% mixture of glycol will result in a BTU output loss of 15% with a 5% increase in head against the system circulator.

• Glycol mixtures should not exceed 50%. A 50% mixture of glycol will result in a BTU output loss of

30% with a 50% increase in head against the system circulator.

Install Water Piping

- Boiler loop piping must be sized to the minimums listed in the Boiler manual. Using smaller piping will cause performance problems.(page 34)

Install Vent & Air Piping

- Slide the air inlet pipe and vent pipe into the Boiler pipe connector.

- Make sure the terminations are placed as required in the manual and that air intakes are at least 12 inches above normal snow line.

- Refer to the material check list in this guide for a list of items needed.

Install Condensate Piping / Tubing & Components

- Fill out the material check list in this guide to ensure you have the tubing or PVC pipe and all components needed for the condensate piping.

- Connect internal components that are supplied with the Boiler.

• The glycol solution should be tested as recommended by the glycol manufacturer but not less than annually.

Some items of concern are pH additive breakdown, inhibitor reduction, etc.

• Glycol/antifreeze solutions expand more than water; therefore, system design must take this into account.

For example: a 50% by volume solution expands

4.8% in volume for a temperature increase from 32◦F to 180◦F, while water expands 3% over the same temperature rise.

Install Gas Piping

- Install a union and shutoff valve.

CAUTION

It is highly recommended to follow the manufacturers recommended concentrations, expansion requirements, and maintenance recommendations. You must carefully calculate the additional friction loss in the system as well as the reduction in the heat transfer coefficients.

__________________________________________

Wire the Boiler

- Connect power wiring and control wiring per boiler manual wiring diagram.(Section 4.19)

Start up, Adjust & Test

- Follow the Boiler manual instructions to clean the system if needed, then fill and check water chemistry.

Page 76

9.2 Final Check Lists

Final check : Installation Conditions.

• Is the Boiler properly mounted on the wall?

• Is there space for a drain which is close to the

Boiler?

• Are there any combustible materials near the Boiler and vent pipe?

• Is the air supply sufficient for proper operation of the Boiler?

• Are the proper service clearances maintained?

• Is the distance between the Boiler and point of vent termination minimized?

• Is the proper distance from windows, doors, and other intake vents maintained?

Final check : Gas pipe installation

• Is the gas supply line equipped with a manual shut off valve?

• Is the gas supply line a minimum of 3/4˝ inner diameter?

• Is the gas supply line length and diameter adequate to deliver the required BTU’s?

• Has the gas supply line pressure been measured?

• Does the supply gas type match the type indicated on the boiler rating plate?

Final check: Air/Vent pipe installation

• Has the Boiler been vented with 3˝ or 2” PVC,

CPVC, Polypropylene or BH Special

Gas Vent (S636 PVC, CPVC) for Category IV appliances in accordance with this manual and/or your local code?

• Is the vent termination at least 12˝ above the exterior grade?

• Is the total vent length within the maximum vent length restriction?

• Have you checked the air/vent piping for leaks?

• Have you properly supported the vent termination?

• Are all vent runs properly supported?

• Is the vent sloped upward toward the vent termination at a rate of 1/4˝ per foot (2% grade)?

Final check : Condensate drain installation

• Have you installed a condensate drain line from the

Boiler to a drain or laundry tub?

Final check : Setting the DIP switches

• Are all DIP switches correctly set on the main board?

Final check : Connecting the power supply

• Please check that the power is 120V AC.

• Have you checked the polarity of the electrical connection?

Final check : Pressure relief valve

• Have you installed an approved pressure relief valve on the boiler?

• Is the pressure relief valve of CH Plumbing at least

1˝ in diameter?

• Is the pressure relief valve of DHW Plumbing at least

3/4˝ in diameter?

• Have you installed the pressure relief valve on the hot water outlet pipe near the Boiler?

Final check : Burner flames

• The burner flame must be checked periodically for a constant proper blue color.

• If the flame does not appear normal, the burner may need to be cleaned.

If the burner needs to be cleaned, it must be performed by a qualified service technician.

Sight Glass

Blue flame

Casing _

Feature

Casing _

Feature

Mascot FT Combination Boiler

SECTION 10 Parts List and Illustrations

FTCW

140

Page 77

Casing _

Feature

FT1894 Mounting Bracket

Casing _

List

No.

33

34

35

36

37

28

29

30

24

25

26

27

31

32

21

22

23

18

19

20

15-6

15-7

16

16-1

16-2

17

O-7

15

15-1

15-2

15-3

15-4

15-5

Description

Part

Number

O-Ring P7

Exhaust vent duct Assembly

Stainless band (Ø100)

Packing

Exhaust vent duct

Exhaust testing cap

O-Ring P85

Exhaust vent adaptor (Inside)

O-Ring P75

Air inlet duct Assembly

Air inlet duct

Air inlet adaptor (Inside)

Air vent

Air vent rubber packing

Gasket bracket

Safety valve rubber pad

Air pressure sensor (80)

PCB Control (NGTX-900CP)

Ignition transformer

Control sub-bracket

Display Control (P-920C)

FT1954

FT1620

Bracket FT1511

Condensate blockage, Air press switch FT1022

Control bracket

Power switch

Terminal block (10P)

Front cover

Control display cover / window

FT1922

FT1020

FT1021

FT1923

FT1024

FT1612

FT1321

FT1013

FT1797

FT1921

FT1804

FT1899

ST1006

FT1601

FT1002

FT1603

FT1604

FT1611

FT1606

FT1607

FT1608

FT1609

FT1010

FT1605

FT1025 Pressure gauge

Intake/Exhaust sealing pad

Wall Mount bracket (top)

Casing Assembly

Wall Mount bracket (bottom)

FT1771

FT1924

N / A

FT1936

KRB

Code

S322100020

S551100045

H140320030

S551100063

S264100067

S115900025

S223100036

H850150051

S121110029

H120900014

S264100062

H120900013

S264100057

S900140007

H110130132

H850150050

S552200045

H190200003

S453100002

S552100064

S549100119

H850150049

S552200070

S549100121

S552200069

H190200002

S549100120

S529100025

S325100028

S555100029

H140120024

H110330070

H120900017

Price

Mascot FT Combination Boiler

CH Block & DHW Block Ass’y_

Feature

FTCW

140

H190200003

H190200002

15

16

FT1002

FT1010

CASING

Exhaust Duct Assembly

Air Intake Duct Assembly

S115900025

S264100065

S223100028

S122100010

S900140007

S264100062

18

19

20

23

25

FT1014

FT1015

FT1016

FT1019

FT1021

Control

Air pressure switch

26

FT1022


0-22A

Display Panel

Terminal Block

Condensate Blockage, Air Pressure switch

Display cover window

H850150050 28

FT1024

S325100028

S489100248

H199990175

S419100042

29

31

A1

33

FT1025

FT1027

0-22A

FT1100

FT1517

Pressure gauge

DHW Hydro block Assembly

DHW Outlet Pipe

0-22A

S514100107

S311200029

S419100041

S317100009

S193000001

S549100150

35

36

38

39

40

43

FT1519

FT1112

FT1521

FT1115

FT1116

FT1119

DHW nipple

Outlet sensor

Flow sensor

Mixing valve

Flow restrictor CH Assembly

S549100145

S549100141

S514100105

44

45

FT1120

FT1121

FT1122

DHW filter mash

DHW filter Cap

47

A2 FT1200

DHW connector

CH hydro Block Assembly

H199990176

S419100040

S311200030

S549100155

S419100039

55

56

57

FT1526

FT1219

FT1220

CH return pipe

58

FT1527

CH return sensor

3-way valve

H160320029 FT1222

S549100166

H140240002

S311200027

59

60

62

63

64

FT1304

FT1306

FT1307

FT1068

Pump

HEAT EXCHANGER ASSEMBLY

Exhaust Pipe

Exhaust sensor BK

Exhaust overheat sensor

Heat Exchanger Assembly

H130120199

S311400021

S311400021

65

FT1309

65-1

FT1310

Over heat Sensor

H130210023

S333100033

S554100041

S322100020

S419100038

65-4

65-6

65-7

65-8

68

FT1313

FT1315

FT1316

FT1665

FT1321

Burner

Igniter

Ignitor gasket

Refractory

Air vent

69

FT1322 CH supply upper pipe

DHW tank

H120420007

S311200026

S312100011

S314200007

S549100134

S421200030

S514100108

70

71

72

74

75

76

FT1323

FT1324

FT1325

FT1327

FT1328

FT1329

Flame detector sensor

Condensate trap

Condensate trap hose

H160510020

S242100058

S549100132

S551200026

S345100008

S551200001

77

83

83-1

83-2

83-3

85

85

86_1

86_2

FT1330

FT1405

FT1406

FT1409

FT1716

FT1412N

FT1412P

FT1728

FT1415

Temperature sensor

Low level sensor

Condensate trap connector

BLOWER & GAS VALVE

Blower Assembly

Blower

Housing, Gas Mixer

O-Ring, Fan Sealing

Orifice (natural)

Orifice (propane)

Gas valve outlet adaptor

Gas valve O-Ring

FT1416 Gas valve

86_3

S412190040

S349100039

86_4

86_5

87

88

FT1538

FT1418

FT1419

FT1420

Gas valve inlet adaptor

Gas valve BK

Gas pipe (down)

Gas inlet adaptor

Initials Date

Status

‘B2’ - CH Block Ass’y_

List

Page 80

No.

P-6

54

55

56

13

14

53

57

B2

O-20

O-22

O-22A

O-25

P-5

58

59

60

61

62

63

CH Assembly

Description

CH Hydro block Assembly

O-Ring P20

O-Ring P22

O-Ring P22A

O-Ring P25

3/4" Packing

1" Packing

Piping clip

Pump clip

Block cap

Return block

R Clip

CH Return, Supply connector

CH Filter

U Clip

CH Return pipe

CH Return sensor

3-way valve

CH Supply pipe

Pump

Part

Number

FT1100

FT1513

FT1644

H199990175

S551200033

S551200034

FT1515 S551200035

FT1516 S551200036

FT1646

FT1691

‘B3’ - DHW Block Ass’y_

List

FT1107 S455100095

FT1108

FT1121

FT1523

FT1524

FT1215

FT1216

FT1217

FT1218

FT1219

FT1220

S455100096

S549100141 DHW Assembly

S549100140

No. Description

S514100106

S549100142

O-15 O-Ring P15

S455100106

O-16 O-Ring P16

S419100040

S311200030

S549100155

Part

Number

FT1200

FT1685

FT1643

FT1687

FT1513

KRB

Code

H199990176

S551200027

S551200028

S551200029

S551200033

FT1515 S551200035

FT1527

FT1222

S419100039

H160320029 FT1645 S551100046

12 Flow sensor clip FT1208 S455100069

45

46

47

48

49

50

51

52

13

40

41

42

43

44

KRB

Code

Price

Piping clip

DHW Outlet pipe

DHW Outer block

DHW Nipple

DHW Temperature sensor

DHW Inlet pipe

Flow sensor

Mixing valve

DHW Inlet block

DHW Filter body

Flow restrictor (12L)

DHW Filter mesh

Block cap

DHW Connector

FT1107

FT1109

FT1518

FT1111

FT1112

FT1114

FT1115

FT1116

FT1522

FT1549

FT1119

FT1120

FT1121

FT1122

S455100095

S419100042

S549100147

S514100107

S311200029

S419100041

S317100009

S193000001

S549100146

S549100143

S549100149

S549100145

S549100141

S514100105

Price

Heat Exchanger & Tank _

Feature

FTCW

140

Heat Exchanger & Tank

Page 81

No.

77

78

79

74

75

76

69-3

69-4

69-5

69-7

69-8

69-9

69-10

70

71

72

73

O-22

66

67

68

69

69-1

69-2

P-5

P-6

64

65


List

FTCW

140


Description

Part

Number

O-Ring P22 FT1644

3/4" Packing

1" Packing

EX-Adaptor

Exhaust pipe

FT1646

FT1691

FT1784

FT1067

Exhaust sensor bracket FT1529

Exhaust overheat sensor FT1307

Exhaust pipe packing (lower) FT1666


Burner Assembly

FT1313

FT1925

Overheat sensor FT1310

Burner upper case

Burner packing

Burner

Ignition rod

Ignition rod gasket

Burner downside case

Refractory


DHW Tank bracket

DHW Tank

CH Supply upper pipe

FT1926

FT1927

FT1314

FT1315

FT1316

FT1928

FT1665

FT1528

FT1530

FT1323

FT1322

Temperature sensor FT1324

Low level sensor FT1325

Flame detector sensor bracket FT1669

Flame detector sensor FT1327

Flame detector sensor cover FT1069

Condensate trap Assembly FT1783

KRB

Code

S551200034

S551100004

S551100005

S549100223

S549100148

H140240002

S311200027

S552100054

H120240461

H130120301

S311400021

H870060125

S551100083

H130210023

S333100033

S554200007

H870060126

S562200107

S453100015

H120900012

H120420007

S419100038

S311200026

S312100011

H850130001

S314200007

H140240003

H160520005

Price

Fan & Gas Valve _

Feature

FTCW

140

Blower and Gas Valve

Page 83

No.

82

83

84

85

86

86-1

86-2

86-3

86-4

87

88

89

90

91

92

92-1

92-2

92-3

92-4

92-5

93

94

95

Fan & Gas Valve _

List

Page 84

LAARS Heating Systems

FTCW

140

Blower and Gas Valve

Description

Part

Number

KRB

Code

Price

Fan guide FT1532

Fan rubber packing (1.0t) FT1721

Mash FT1720

Fan rubber packing (1.6t) FT1082

Fan Assembly FT1407

Fan FT1406

Fan sealing O-Ring ST1038

Gas mixer housing FT1409

Intake orifice (140K)


Air intake hose (120,140K) FT1533

Nylon Barb Y Fitting

Nozzle (Natural/140K)

FT1535

FT1078

FT1918

FT1412N

Nozzle (Propane/140K) FT1412P

Gas pipe (upper) FT1536

H870060054

S551100047

H140140003

S551100071

H160510059

S242100047

S551200026

S549100132

H160620001

S455100088

S421200052

H850150151

H130010019

H130010020

S412190039

Gas valve Assembly FT1413 H160430012

Gas valve outlet adaptor FT1919

Gas valve O-Ring

Gas valve

Gas valve inlet adaptor

Gas valve bracket

1/2" Spiral packing

Gas pipe(down)

Gas inlet adaptor

H870060055

FT1727

FT1416

FT1538

FT1539

FT1710

FT1419

Optional Item_

S345100010

H120900018

S557100001

S412190040

List

FT1893 No. H870060074 Description

Part

Number

100

101

102

104

105

106

107

108

109

110

111

112

113

114

Pressure Relief Valve FT1500

Outdoor Temp. Sensor

Bird Screen 3"

FT1501

FT1730

Spare Parts Kit FT1930

Condensate Hose

Restrictor (12L)

Wall Hung Bracket

Bird Screen 2"

ST1070

FT1506

FT1894

FT1508

Nozzle LNG 7.1 (3,000~10,000ft) FT1931

Nozzle LNG 5.0 (3,000~6,500ft) FT1932

Nozzle LNG 5.1 (6,500~10,000ft) FT1933

Nozzle LNG 6.2 (3,000~10,000ft) FT1934

Nozzle LNG 4.8 (3,000~10,000ft) FT1935

Wire Harness FT1903

KRB

Code

S323100096

S319300014

S114200020

H990050017

S421200027

S549100150

H140120025

S114200021

H130010024

H130010027

H130010026

H130010025

H130010028

S274400012

Price

Casing _

Feature


FTCW

199

Page 85

27

32

33

34

35

28

29

30

31

36

37

No.

O-7

15

15_1

15_2

15_3

15_4

15_5

15_6

15_7

16

16_1

17

22

23

24

25

26

18

19

20

21

Casing _

List

FTCW

199

Description

O-Ring P7

Exhaust vent duct Assembly


Packing

Exhaust vent duct

Exhaust testing cap

O-Ring P85

Exhaust vent adaptor (Inside)

O-Ring P75

Air inlet duct Assembly

Air inlet duct

Air vent

Air vent rubber packing

Gasket bracket

Safety valve rubber pad

Air pressure sensor (80)

Control bracket


Control sub-bracket

Display Control (P-920C)

Bracket

Condensate blockage, Air pressure switch

PCB Control (NGTX-900CP)

Power switch

Terminal block (6P)

Front cover

Control display cover / window

Pressure gauge

Intake/exhaust sealing pad

Wall hung bracket (top)

Wall Mount Bracket

Wall hung bracket (bottom)

FT1022

FT1899

FT1020

FT1827

FT1920

FT1024

FT1025

FT1771

FT1924

FT1894

FT1936

Part

Number

FT1601

FT1002

FT1603

FT1604

FT1611

FT1606

FT1607

FT1608

FT1609

FT1909

FT1605

FT1321

FT1013

FT1797

FT1921

FT1804

FT1751

ST1006

FT1752

FT1620

FT1795

R2080604

CH Block & DHW Block Ass’y_

Page 87

Feature

FTCW

199

CH Assembly B2

‘B2’

CH Block

Ass’y

Packing

Sensor

‘B3’

DHW Block

Ass’y

DHW Assembly B3

Page 88

61

62

63

57

58

59

60

53

54

55

56

P-5

P-6

13

14

‘B2’ - CH Block Ass’y_

List

CH Assembly B2

No. Description

Part

Number

Notes

B2

O-20

CH Hydro block Assembly

O-Ring P20

O-22 O-Ring P22

O-22A O-Ring P22A

O-25 O-Ring P25

FT1937

FT1513

FT1644

FT1515

FT1516

3/4" Packing

1" Packing

Piping clip

Pump clip

Block cap

Return block

R Clip

CH Return, Supply connector

CH Filter

U Clip

CH Return pipe

CH Return sensor

3way valve

CH Supply pipe

Pump

FT1646

FT1691

FT1107

FT1108

FT1121

FT1523

FT1524

FT1215

FT1216

FT1217

FT1807

FT1219

FT1220

FT1808

FT1798

‘B3’ - DHW Block Ass’y_

List

DHW Assembly B3

No.

B3

Description

DHW Hydro block Assembly

Part

Number

FT1938

Notes

O-15

O-16

O-18

O-Ring P15

O-Ring P16

O-Ring P18

FT1685

FT1643

FT1687

46

47

48

42

43

44

45

49

50

51

52

O-20 O-Ring P20

O-22A O-Ring P22A

P-5 3/4" Packing

12

13

40

41

Flow sensor clip

Piping clip

DHW Outlet Pipe

DHW Outer block

DHW Nipple

DHW Temperature sensor

DHW Inlet pipe

Flow sensor

Mixing valve

DHW Inlet block

DHW Filter body

Flow restrictor

DHW Filter mesh

Block cap

DHW Connector

FT1111

FT1112

FT1806

FT1115

FT1116

FT1522

FT1549

FT1513

FT1515

FT1646

FT1208

FT1107

FT1805

FT1518

FT1822

FT1120

FT1121

FT1122



Feature


Feature

Page 89

Page 90


List

No.

66

67

68

69

O-22

P-5

P-6

65

70

70-1

70-2

70-3

77

78

79

80

73

74

75

76

70-4

70-5

70-6

70-7

70-8

70-9

71

72

Description

O-Ring P22

3/4" Packing

1" Packing

Exhaust pipe

Exhaust sensor bracket

EX-Adaptor

Exhaust overheat sensor

Exhaust pipe packing (lower)


Burner Assembly

Burner upper case

Burner packing

Burner

Ignition rod

Ignition rod gasket

Overheat sensor

Burner downside case

Refractory


DHW Tank bracket

DHW Tank

CH Supply upper pipe

Temperature sensor

Low level sensor

Flame detector sensor bracket

Flame detector sensor

Flame detector sensor cover

Condensate trap Assembly

Part

Number

FT1644

FT1646

FT1691

FT1823

FT1529

FT1784

FT1307

FT1836

FT1992

FT1796

FT1760

FT1824

FT1762

FT1763

FT1316

FT1310

FT1764

FT1826

FT1813

FT1793

FT1794

FT1809

FT1324

FT1325

FT1669

FT1327

FT1069

FT1783

Notes

Fan & Gas Valve _

List

No.

89

90

91

92

92-1

92-2

92-3

92-4

93

94

86

87

87-1

87-2

82

83

84

85

87-3

87-4

87-5

88

95

96

97

Description

Fan guide

Damper packing

Damper body

Fan rubber packing (1.6t)

Fan guide packing

Fan Assembly

Fan

Fan sealing O-Ring

AGM Venturi

AGM O-Ring

AGM Body


Air intake hose

Nylon Barb Y Fitting

Stainless band(Ø89)

Gas valve Assembly

Gas valve outlet adaptor

Gas valve O-ring

Gas valve

Gas valve bracket

1/2" Spiral packing

Nozzle (natural)

Nozzle (propane)

Gas pipe (upper)

Gas pipe (down)

Gas inlet adaptor

Part

Number

FT1769

FT1770

FT1915

FT1082

FT1772

FT1916

FT1406

ST1038

FT1917

FT1774

FT1775

FT1603

FT1812

FT1918

FT1777

FT1778

FT1919

FT1727

FT1416

FT1779

FT1710

FT1780

FT1802

FT1810

FT1811

FT1893

Notes


Fan & Gas Valve _

Feature

Feature

Page 91

Page 92

Notes:

For Product and

Service V

IDEOS

Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement.

Customer Service and Product Support: 800.900.9276 • Fax 800.559.1583

20 Industrial Way, Rochester, NH, USA 03867

20-01 Document 1318G

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