TriangleTube Delta Installation And Maintenance Manual

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Page 1

Modulating Gas Fired

The

Modulating

Combination Heaters

* I N STTAALLLLAATT

* I N S

Warranty Registration Card must be filled out by the customer and mailed within thirty (30) days of installa-

NOTICE

WARNING

tion in order to gain warranty coverage.

When receiving the Delta Performance appliance, any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee.

Leave all documentation received with appliance with owner for future reference.

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

• 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 neighbor’s phone. Follow the gas

- If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

I O NAA

I O N

MMAAN U

supplier’s instructions.

N D MAA

N D M

N U

FOR

YOUR SAFETY

AAL

I NTT

I N

E NAA

E N

N C E *

Date: 5/2/06

2005-44 Manual Modulating Delta

Page 2

DANGER

The MODULATING DELTA must be vented and supplied with combustion and ventilation air as detailed in the MODULATING DELTA Vent Supplement, which is included in the installation envelope. Once installation is completed, inspect the vent and combustion air system thoroughly to ensure systems are leak free, tight and comply with the instructions given in the MODULATING DELTA Vent Supplement and are within all requirements of applicable codes. Failure to comply with the installation requirements on the venting and combustion air piping and ventilation will cause severe personal injury or death.

Page 3

Table of Contents

PRODUCT AND SAFETY INFORMATION

Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Product Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Operating Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Code Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SECTION I - PRE-INSTALLATION ITEMS

Code Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Determining Product Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Replacement of Existing Boiler/Water Heater . . . . . . . . . . . . . . . . . . . . . . . 5

Recommended Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Flooring and Foundation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Residential Garage Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Freeze Protection Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

SECTION II - APPLIANCE PREPARATION

Handling Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SECTION III - DOMESTIC PIPING

General Piping Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Domestic Supply Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Water Hammer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Temperature / Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Thermostatic Mixing Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Mixing Valve Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Domestic Cold Water Supply Piping Assembly Installation . . . . . . . . . . . . 9

U-Tube Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10

Domestic Drain Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Multiple Appliances Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Storage Tank Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

TR/Smart Series Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Domestic Piping Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13

Page 4

Table of Contents

SECTION IV - PRIMARY PIPING

General Piping Requirements

Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Low Water Cut-off Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Additional Limit Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15

Backflow Preventer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Primary System Piping Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Expansion Tank and Makeup Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Diaphragm (Bladder) Expansion Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Closed-Type (Standard) Expansion Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-16

Circulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Sizing Primary Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

System Piping - Zone Circulators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

System Piping - Zone Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

System Piping - Radiant Heating with Mixing Valves. . . . . . . . . . . . . . . . . 16-17

System Piping - Multiple Appliances Installation . . . . . . . . . . . . . . . . . . . . 17

Primary Piping Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-21

SECTION V - GAS PIPING

Gas Supply Piping Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Natural Gas

Pipe Sizing -Natural Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Natural Gas Supply Pressure Requirements. . . . . . . . . . . . . . . . . . . 23

Propane Gas

Pipe Sizing - Propane Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Propane Gas Supply Pressure Requirements . . . . . . . . . . . . . . . . . . 24

SECTION VI - INTERNAL WIRING

General Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

SECTION VII - EXTERNAL WIRING

Installation Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Line Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Outdoor Reset Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Additional 24V Limit Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

System Circulator - Zone Valve Applications . . . . . . . . . . . . . . . . . . . . . . . 28

External Control Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-31

Page 5

Table of Contents

SECTION VIII - START-UP PREPARATION

Check System and Domestic Water Chemistry

Water pH Level 6.0 to 8.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Water Hardness Less Than 7 Grains. . . . . . . . . . . . . . . . . . . . . . . . . 32

Chloride Concentration Less Than 80 mg/L . . . . . . . . . . . . . . . . . . 32

Chlorinated Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Flush Primary and Domestic System to Remove Sediment. . . . . . . . . . . . . 32

Check and Test Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-33

Use of Antifreeze in the Primary System . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Filling the Inner (Domestic) Tank and System . . . . . . . . . . . . . . . . . . . . . . 33

Filling the Outer (Primary) Tank and System . . . . . . . . . . . . . . . . . . . . . . . 33-34

Check for Gas Leaks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Check Thermostat Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

SECTION IX - START-UP PROCEDURES

Final Checks Before Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Appliance Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

If Appliance Does Not Start Correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Check the Appliance and System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-36

Start-Up / Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Set Domestic DHW Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Operation Verification - Domestic Hot Water . . . . . . . . . . . . . . . . . . . . . . . 38-39

Set Primary CH Target Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Operation Verification - Space Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39-40

Control Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Standby Mode Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-42

Setting the Control Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Accessing Control Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Error (Hard Lockout) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Setting the Thermostatic Mixing Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

SECTION X - CHECK-OUT PROCEDURES

Check-out Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

SECTION XI - INSTALLATION RECORD

Installation Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

iii

Page 6

Table of Contents

SECTIONS XII - MAINTENANCE SCHEDULE

Service Technician - General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Owner Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

SECTION XIII - MAINTENANCE PROCEDURES

Maintenance Procedures

Reported Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Check Surrounding Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Inspect Burner Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Check System (Primary and Domestic) Piping . . . . . . . . . . . . . . . . 49

Check Combustion/Ventilation Air Openings . . . . . . . . . . . . . . . . . 50

Inspect Vent System and Combustion Air Piping . . . . . . . . . . . . . . 50

Check Primary System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Check Domestic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Check Expansion Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Check Primary Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Check Temperature / Pressure Relief Valve . . . . . . . . . . . . . . . . . . . 51

Inspection of Ignition Electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Check All Gaskets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Check Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Check Parameter Limit Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Perform Start-Up and Checkout Procedure . . . . . . . . . . . . . . . . . . . 51

Check Burner Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Check Flame Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Check Combustion Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Review with Owner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Handling Previously Fired Combustion Chamber Insulation . . . . . 53

REPLACEMENT PARTS

Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-55

PRODUCT SPECIFICATIONS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56-57

Page 7

Product & Safety Information

The following terms are used throughout this manual to bring attention to the presence of potential hazards or to important information concerning the product.

DANGER

Indicates the presence of a hazardous situation which, if ignored, will result in death, serious injury or substantial property damage.

WARNING

Indicates a potentially hazardous situation which, if ignored, can result in death, serious injury or substantial property damage.

CAUTION

Indicates a potentially hazardous situation which, if ignored, may result in minor injury or property damage.

NOTICE

Indicates special instructions on installation, operation or maintenance, which are important to equipment but not related to personal injury hazards.

BEST PRACTICES

Indicates recommendations made by Triangle Tube for the installers which will help to ensure optimum operation and longevity of the equipment

NOTICE

Triangle Tube reserves the right to modify the technical specifications and components of its products without prior notice.

Page 8

Product & Safety Information

DANGER

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 which has been under water.

DANGER

WHAT TO DO IF YOU SMELL GAS

- Do not try to light any appliance

- Do not touch any electrical switch; do not use any phone in your building.

- Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

- If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

WARNING

Should overheating occur or the gas supply fails to shut off, turn OFF the manual gas control valve external to the appliance.

CAUTION

To prevent damage to inner tank, installer must:

• Fill inner tank prior to outer tank during start-up.

• Relieve primary system pressure below 15 psig prior to draining inner tank.

Qualified Installer:

Prior to installing this product read all instructions included in this manual. Perform all installation steps required in this manual in the proper order given. Failure to adhere to the guidelines within this manual can result in severe personal injury, death or substantial property damage.

Homeowner:

-This product should be maintained / serviced and inspected annually by a qualified Service Technician.

- This manual is intended for use by a qualified Installer/Service Technician.

NOTICEWARNING

Please reference the appliance’s model number and the serial number from the rating label when inquiring about service or troubleshooting.

NOTICE

Triangle Tube accepts no liability for any damage resulting from incorrect installation or from the use of components or fittings not specified by Triangle Tube.

Page 9

Product & Safety Information

WARNING

Bacteria can develop in the domestic water system if certain minimum water temperatures are not maintained.

DANGER

Water temperature over 125ºF can cause severe burns instantly or death from scalds.

• Children, disabled and elderly are at highest risk of being scalded.

- Never leave them unattended in or

near shower, bathtub or sink.

- Never allow small children to use a

hot water faucet or draw their own bath.

• If any one using hot water in the building fits the above description or codes require specific water temperatures at hot water faucet, we recommend:

a) ensure the factory equipped thermo-

static mixing valve is installed and working properly.

b)to set the thermostatic mixing valve

for the lowest temperature which satisfies your hot water need.

CAUTION

Protection must be taken against excessive temperature and pressure!

TO PROTECT AGAINST EXCESSIVE TEMPERATURE AND PRESSURE

• Check if the Temperature and Pressure (T&P) relief valve is in the location provided. (Domestic Water)

• Check if the 30 psi relief valve supplied is in the location provided. (Primary water)

• To avoid injury, install the relief devices to comply with local code requirements.

Page 10

Product & Safety Information

OPERATING RESTRICTIONS

• Maximum working pressure for inner (domestic water) tank is 150 psig.

• Maximum working pressure for outer (primary water) tank is 45 psig.

• Inner tank has factory installed Temperature & Pressure Relief Valve with an AGArating of 200,000 Btu/hr.

• Outer tank has a factory installed 30 psig relief valve rated at 535,000 Btu/hr

• Electrical rating:120 V, 60 Hz, less than 12 amperes

• pH & chloride limits for the MODULATING DELTA are:

- Chloride, less than 80 mg/l.

- pH, 6.0 - 8.0.

• 186º F Maximum operating tempera ture - primary side.

• 120º F Maximum outlet temperature from mixing valve - domestic side.

NOTICE

Any water conditioning system must be installed and maintained in accordance with manufacturer

’s specifications.

CODE RESTRICTIONS

Single wall heat exchanger in the MODULATING DELTA complies with National Standard Plumbing Code, provided that:

- Outer tank water (including additives) is practically non-toxic, having toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial Products,

- Outer tank pressure is limited to maximum 30 psig by approved relief valve.

Single wall heat exchangers are permitted under the Uniform Plumbing code - Paragraph L3.2. if they satisfy all of the following requirements.

1. The heat transfer medium is potable water or contains only substances

which are recognized as safe by the U.S. Food and Drug Administration.

2. The pressure of the heat transfer medium is maintained less than the normal minimum operating pressure of the potable water system

3. The equipment is permanently labeled to indicate that only additives recognized as safe by the FDA shall be used in the heat transfer medium.

Or, per Uniform Plumbing Code paragraph L3.3 as follows:

Other heat exchanger designs may be permitted where approved by the Administrative Authority.

Page 11

Pre-Installation Items

SECTION I - Pre-Installation Items

Code Compliance

This product must be installed in accordance to the following:

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

• The National Fuel Gas Code NFPA 54/ ANSI Z223.1 - Latest edition.

• National Electric Code ANSI/NFPA 70.

• For installations in Canada -“Installation Code for Gas Burning Equipment” CSA B149 and CSA C22.1, Canadian Electrical Code.

Determining Product Location

Before locating the MODULATING DELTA check for convenient locations to:

- Domestic water supply piping

- Heating system piping

- Venting

- Gas supply piping

The MODULATING DELTA should be installed in a location so that any water leaking from the tank or piping connections or relief valves will not cause damage to the area surrounding the appliance or any lower floors in the structure.

- When such a location is unavoidable, a suitable drain pan with adequate drainage should be placed under the appliance. The drain pan must not restrict the flow of combustion air to the appliance.

Replacement of Existing Boiler/Water Heater

If the MODULATING DELTA is replacing an existing boiler / hot water heater system, the following items should be checked and corrected prior to installation:

• Primary and domestic piping leaks and corrosion.

• Improper location and sizing of the expansion tank on the primary heating loop.

• Improper sizing of the thermal expansion tank (if used) on the domestic supply line.

- Electrical service

Ensure the area chosen for the installation of the MODULA combustible materials, gasoline and other flammable liquids.

WARNING

Failure to remove or maintain the area free of combustible materials, gasoline and other flammable liquids or vapors can result in severe personal injury, death or substantial property damage.

Ensure the MODULATING DELTA and its controls are protected from dripping or spraying water during normal operation or service.

TING DELTA is free of any

• Vent condition and sizing.

Recommended Clearances

The MODULATING DELTA is approved for zero clearance to combustibles, excluding the vent hood and vent piping.

Vent hood and vent piping - 2 inches from combustible materials unless otherwise stated by the vent pipe manufacturer.

Primary and domestic hot water piping - 1 inch from combustible material.

Page 12

Pre-Installation Items

BEST PRACTICES

To provide serviceability to the appliance it is suggested that the following clearances be maintained:

Top and vent hood area - 36 inches.

Front and burner area - 24 inches.

Rear and primary piping areas - 12 inches.

WARNING

When installing the MODULATING DELTA in a confined space, sufficient air must be provided for proper combustion and venting and to allow under normal operating condition proper air flow around the product to maintain ambient temperatures within safe limits to comply with the National Fuel Gas Code NFPA 54 - latest edition.

- The floor is dirt, sand, gravel or other loose material.

- The flooring is severely uneven or sloped.

The minimum foundation size required is 24 inches x 23 inches.

Residential Garage Installations

When installing the MODULATING DELTA in a residential garage the following special precautions per NFPA 54/ANSI Z223.1 must be taken:

- Mount the appliance with a minimum 18 inches above the floor level of the garage. Ensure the burner and ignition devices / controls are no less than 18 inches above the floor level.

- Locate or protect the appliance in a matter so it cannot be damaged by a moving vehicle.

Flooring and Foundation

The MODULATING DELTA is approved for installation on combustible floors, but never on carpeting.

WARNING

Do not install the MODULATING

TA on carpeting even with a metal

DEL or wood foundation base. Fire can result causing severe personal injury, death or substantial property damage.

Installer should provide a solid brick or concrete foundation pad, at least 2 inches above the floor level if:

- There is a potential for the floor to become flooded.

The height of the foundation should be such to sufficiently elevate the appliance.

Freeze Protection Feature

The control has an freeze protection feature built in. This feature monitors the supply temperature and responds as follows when no call for heat is present:

- 45ºF CH circulator is ON

- 37ºF CH circulator is ON and burner operates at low fire.

- 50ºF Burner OFF and CH circulator operates for approximately 10 minutes

WARNING

The freeze protection feature is disabled during a hard lockout. If the heating system is left unattended in cold weather, appropriate safeguards or alarms should be installed to prevent property damage. An optional control/interface is available from Triangle Tube which will provide a set of alarm contacts which will close during a hard lockout.

Page 13

Appliance Preparation

SECTION II - Appliance Preparation

Handling Instructions

The MODULATING DELTA is generally easier to handle and maneuver once removed from the shipping carton and pallet.

To remove the shipping carton and pallet:

a. Remove the shipping straps and open

the top of the carton to remove the wood shipment insert.

b. Lift the carton over the appliance to

remove. If ceiling height is limited, the carton maybe cut open using care not to damage the exterior jacket of the appliance.

c. Remove the front burner hood to pre-

vent damage prior to lifting the appliance from the shipping pallet.

WARNING

When lifting or moving the appliance do not use the burner or its components as a means of a handle. Hand-truck the appliance from the rear only.

d. Discard all packing materials.

Page 14

Domestic Piping

SECTION III - Domestic Piping

General Piping Requirements

• All plumbing must meet or exceed all local, state and national plumbing codes.

• Use pipe dope or tape suitable for potable water.

• Use isolation valves to isolate system components.

• Install unions for easy removal of the MODULATING DELTA from the system piping.

Domestic Supply Pressure

For applications in which the domestic supply pressure exceeds mended to install a pressure reducing valve on the cold water supply.

Maintaining the cold water supply at or below expansion from repeatedly forcing the T&P relief valve open.

Thermal Expansion

If the cold water supply to the domestic inner tank contains a backflow preventer, check valve and / or a pressure reducing valve, the installer must install a domestic thermal expansion tank on the cold water supply. (See Fig. 2 page 11)

Installing a thermal expansion tank will prevent normal thermal expansion from repeatedly forcing the T&P relief valve open.

When installing a thermal expansion tank ensure the charge pressure of the tank is equal to the cold water supply pressure at the point of installation. Consult the thermal expansion tank manufacturer’s instructions for further information on installation and sizing.

70 psig will prevent normal thermal

70 psig it is recom-

CAUTION

The Temperature / Pressure relief valve is not intended for constant duty, such as relief of pressure due to normal thermal expansion.

Water Hammer

Water hammer is the effect of sudden pressure changes occurring in the domestic piping. These pressure changes are typically the result of “fast acting” positive shut-off valves closing. These types of valves can be typically found on dishwashers and clothes washers.

The effects of water hammering can cause damage to system components and tank welds on the appliance.

Installation of hammer arresters is recommended at these types of appliances, which incorporate “fast-acting” positive shut-off valves. Consult the manufacturer of water hammer arresters for recommendation on sizing and installation requirements.

Temperature / Pressure Relief Valve

The MODULATING DELTA has a factory installed Temperature / Pressure Relief valve.

The installer must install discharge piping onto the T&P relief valve. The discharge piping must be:

• Made of material serviceable for temperatures of 250ºF or greater.

• Directed so that any hot water discharge flows away from all persons.

• Directed to a suitable place of drainage.

• Installed as to allow complete draining of the T&P relief valve and the discharge piping.

• Terminated with a plain end, not with threads.

Page 15

Domestic Piping

CAUTION

Failure to properly direct the discharge piping of the T&P relief valve may result in flooding of the area adjacent to the appliance and/or lower floors in the structure causing substantial property damage.

The installer must not install the T&P relief valve discharge piping in a manner that is:

• Excessively long: Using more than 2 elbows and/or 15 feet of discharge piping can reduce the discharge capacity.

• Terminated directly into a drain: The discharge piping must terminate within 6 inches of the drain. Check with local plumbing codes for termination guidelines.

• The discharge piping is plugged, reduced in size or restricted in any manner.

DANGER

For proper operation of the thermostatic mixing valve and to prevent potential scalding hazards, the recirculation loop should be controlled by an aquastat. DO NOT use continuous recirculation or timers.

Mixing Valve Installation

1. Remove the jacket top panel by pushing up on the corners.

2. Remove the mixing valve from the carton located inside the front control cover.

3. Apply pipe dope to the male threads located on the “H” (hot) side of the mixing valve and the internal threads of the domestic hot water supply tee.

4. Thread the “H” side of the mixing valve in to the domestic hot water supply tee, align valve and tighten using two wrenches to avoid pipe damage.

• The discharge piping is subject to freezing.

WARNING

DO NOT install any valves between the T&P relief valve and the discharge piping. DO NOT plug the T&P relief valve or the discharge piping. Improper placement and piping of the T&P relief valve can cause severe personal injury, death or substantial property damage.

Thermostatic Mixing Valve

The MODULATING DELTA contains a factory equipped thermostatic mixing valve with built-in check valve. The operating range of the thermostatic mixing is 90ºF to 120ºF.

For applications with a domestic recirculation loop, the recirculation pump should be controlled by an aquastat. The maximum recommended setting of the aquastat is 10ºF lower than the thermostatic mixing valve setting.

Domestic Cold Water Supply Piping Assembly Installation

1. Locate the domestic cold water supply piping assembly at the top of the appliance.

2. Apply pipe dope to the male threads of the domestic cold water supply piping assembly and the internal threads of the cold water supply tee.

3. Thread the domestic cold water supply piping assembly in to the domestic cold water supply tee, align the branch with the domestic system piping and tighten using two wrenches to avoid pipe damage.

U-Tube Assembly

The MODULATING DELTA is supplied with a U-Tube Assembly that directs cold water to the thermostatic mixing valve.

To install the U-Tube Assembly the installer must:

Page 16

Domestic Piping

U-Tube Assembly

Adapter

Check Valve

Mixed

1. Disconnect the cold inlet adapter/union from the thermostatic mixing valve.

2. Use needle-nose pliers to remove the plastic check valve assembly from the adapter.

3. Solder the U-Tube Assembly onto the adapter. See Fig. 1.

4. Once the adapter has sufficiently cooled, re-insert the check valve assembly making sure of orientation and reconnect onto the mixing valve.

5. Solder the remaining end of the U-tube to the adapter on the cold inlet piping

If the installation requires domestic hot water for a commercial dishwasher, the installer may insert a tee connection between the appliance and the mixing valve to provide high temperature domestic hot water. The installer must reference local plumbing codes to ensure if this type of application is permissible.

Domestic Drain Valve

- The installer must install a drain valve and drain leg as shown in Fig. 2 page 11.

- The drain valve should be positioned close to the floor to aid in the siphon action required to drain the inner tank.

Multiple Appliances Installation

For applications using multiple appliances the domestic piping should be piped using a balanced manifold arrangement.

The installer should remove the thermostatic mixing valve from the appliances and install a single thermostatic mixing valve at the outlet of the hot water manifold. The thermostatic mixing valve should be sized according to the required flow rate and pressure drop. Refer to the thermostat mixing valve manufacturer specification and installation instructions for more details. Reference Fig. 4, page 12 for piping diagram.

DANGER

The thermostatic mixing valve MUST be installed and utilized on the MODULATING DELTA. Removal of the thermostatic mixing valve will result in severe personal injury or death.

CAUTION

The manual valve on the U-Tube assembly must remain in the full open position for proper operation of the thermostatic mixing valve.

Fig. 1: Mixing Valve Assembly

Storage Tank Application

For applications requiring large volumes of domestic hot water in a relative short period, the installer may include a storage type tank (see Fig. 5 page 13) in the domestic piping. The installer must:

1. Relocate the thermostatic mixing valve from the MODULATING DELTA to the outlet of the storage tank.

2. Provide recirculation from the storage tank back to the MODULATING DELTA using a bronze type circulator. Recommended flow rate is 5 to 10 gpm maximum.

NOTE

Recirculation from the storage tank can be accomplished through the drain connection if a 3rd tapping is unavailable on the storage tank. The recirculation circulator must be controlled by an aquastat.

Page 17

Domestic Piping

Optional

12" Heat trap

To dishwasher if permitted by codes

Cold water

inlet

U-Tube assembly

SMART Series Application

For applications requiring large volumes of domestic hot water over an extended period, the installer may include a Triangle Tube SMART Indirect Water Heater in conjunction with the MODULATING DELTA. (See Fig. 6 page 13)

The domestic system recirculation, if used, is directed to the SMART Series Tank. The circulator should be controlled by an aquastat.

Domestic Piping Diagrams

The primary piping to the SMART Series tank must comply with the piping methods detailed in SECTION IV - Primary Piping or with other recognized piping methods.

Additional information regarding domestic and primary piping can be found in the SMART Installation Manual.

* Optional devices may be required by local codes or installation requirements

Fig. 2: MODULATING DELTA

Without Recirculation

1. Mixing valve with check valve

3. Shut off valve

4. Backflow preventer or pressure reducing valve*

6. Thermal expansion tank*

8. Domestic drain valve

9. Vacuum breaker*

Note: All shut off valves shown in this figure must be shut when siphon draining the MODULATING DELTA

Page 18

Domestic Piping

o dishwasher if

permitted by codes

U-Tube assembly

ptional Recirculation Line

ptional

12" Heat trap

Cold water

inlet

Optional 12" Heat trap

To dishwasher if permitted by codes

Cold water

inlet

U assembly

Optional Recirculation Line

Fig. 3: MODULATING DEL

With Recirculation

Note: All shut off valves

shown in this figure must be closed when siphon draining the MODULATING DELTA

Fig. 4:

Mixing valve with check valve

2. Flow check valve

3. Shut off valve Backflow preventer or pressure reducing valve*

Multiple MODULA

TING DEL

AS Installation

ith Recir

Circulator (controlled by aquastat)

8. Domestic drain valve

9. Vacuum breaker*

10. Recirculation

6. Thermal expansion tank*

* Optional devices may be required by local codes or installation requirements

culation

Aquastat

Page 19

Domestic Piping

Optional 12" Heat trap

Optional recirculation line

Cold water

inlet

To dishwasher if permitted by codes

Optional 12" Heat trap

Cold water

inlet

To dishwasher if permitted by codes

Optional recirculation line

Fig. 5 : MODULATING DELTA with Storage Tank

Fig. 6:

MODULA

1. Mixing valve with check valve

2. Flow check valve

3. Shut off valve

4. Backflow preventer or pressure reducing valve*

6. Thermal expansion tank*

* Optional devices may be required by local codes or installation requirements

TING DEL

with SMAR

Water Heater

ect

Indir

7/7A. Circulator (controlled by aquastat)

8. Domestic drain valve

9. Vacuum breaker*

10. Recirculation aquastat

11. Tank aquastat

Page 20

Primary Piping

SECTION IV - Primary Piping

General Piping Requirements

- All plumbing must meet or exceed all local, state and national plumbing codes.

- Support all piping using hangers. DO NOT support piping by the appliance or its components.

- Use isolation valves to isolate system components.

- Install unions for easy removal of the MODULATING DELTA from the system piping.

Pressure Relief Valve

1. The MODULATING DELTA is supplied with a 30 psi pressure relief valve.

2. To avoid potential water damage to the surrounding area or potential scalding hazard due to the operation of the relief valve, the discharge piping:

WARNING

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.

Low Water Cutoff Device

- The MODULATING DELTA is equipped with a factory installed pressure switch style Low Water Cut Off device.

- The minimum operating system pressure allowable with this device is 10 psig.

- Check local codes which require a low water cutoff device for compliance of this device.

Additional Limit Control

- Must be connected to the discharge outlet of the relief valve and directed to a safe place of disposal.

- Length should be as short and direct as possible. The size of the discharge line should not be reduced; maintain the same size as the outlet of the relief valve.

- Should be directed downward towards the floor at all times. The piping should terminate at least 6 inches above any drain connection to allow clear visibility of the discharge.

- Should terminate with a plain end, not with a threaded end. The material of the piping should have a serviceable temperature rating of 250ºF or greater.

- Should not be subject to conditions where freezing could occur.

- Should not contain any shut-off valves or obstructions. No shut-off valve should be piped between the appliance and the relief valve.

If a LWCO device is required by certain local jurisdictions, the following guidelines must be followed:

- The LWCO device must be designed for water installations, electrode probetype is recommended.

- The LWCO device must be installed in a tee connection on the supply or return piping above the appliance.

- Wiring of the LWCO device to the MODULATING DELTA is done directly onto the 24V terminal strip, reference Fig. 13 page 26 for available terminals for an external limit (manual or auto reset).

If an additional high temperature limit is required by local code requirements the limit should be installed as follows:

- Install the limit in the appliance supply piping between the appliance and any isolation valve.

Page 21

Primary Piping

- Maximum set point for the limit is 186ºF.

- For wiring of the limit reference Fig. 13, page 26, using the external limit/manual reset terminals on the 24V terminal strip. This will provide a "hard" lockout requiring a manual reset of the control.

Backflow Preventer

- Use a backflow preventer valve in the make-up water supply to the appliance as required by local codes.

Primary System Piping Applications

BEST PRACTICE

It is recommended on all piping applications to utilize a primar

y/secondary piping arrangement as a means to provide freeze protection of the appliance, which is an integral function of the appliance control and to utilize the full function of the CH circulator while maintaining the minimum flow rate, see Graph 1, page 56. For other piping arrangements, consult the Engineering Department at Triangle Tube or consult other approved/recognized design arrangements.

BEST PRACTICE

Expansion Tank and Makeup Water

Ensure the expansion tank is properly sized for the outer tank volume (approximately 20 gallons) and the system volume and temperature.

CAUTION

Undersized expansion tanks will cause system water to be lost through the pressure relief valve and cause additional makeup water to be added to the system. Eventual primary tank failure can result due to this excessive makeup water addition.

The expansion tank must be located as shown in Fig. 7 through 10, pages 18 through 21 or as per recognized design methods. Refer to the expansion tank manufacturer instructions for additional installation details.

Connect the expansion tank to an air separator only if the air separator is located on the suction side (inlet) of the system circulator. Always locate and install the system fill connection at the same location as the expansion tank connection to the system.

Diaphragm (Bladder) Expansion Tank

Always install an automatic air vent on the top of the air separator to remove residual air from the system.

On piping applications utilizing a single zone or other recognized piping design arrangements, it is recommended the installer uses flow/check valves with weighted seats at or near the appliance to prevent gravity circulation.

NOTICE

To prevent potential outer tank failure, the primary system piping must be a “closed” loop system to avoid any oxygen contamination of the primary water.

Closed-Type (Standard) Expansion Tank

It is recommended to pitch any horizontal piping toward the expansion tank 1 inch per 5 feet of piping. Use 3/4” piping for the expansion tank to allow air within the system to rise.

For proper operation of the expansion tank and system, remove the factory installed automatic air vent from the MODULATING DELTA and plug the connection.

Page 22

Primary Piping

NOTICECAUTION

DO NOT install automatic air vents on a closed-type expansion tank system. Air must remain in the system and be returned to the expansion tank to provide an air cushion. An automatic air vent would cause air to be vented from the system resulting in a water-logged expansion tank.

Circulator

The MODULATING DELTA is supplied with a circulator that is pre-wired to allow for domestic priority. Locate the circulator in the return or supply piping as shown in the piping diagrams included in this manual.

Sizing Primary Piping

See Figs: 7 through 10, pages 18 - 21, for recommended piping arrangements based on various applications. In all diagrams, the space heating system is isolated from the MODULATING DELTA using primary / secondary piping connections.

Size the piping and system components required in the space heating system using recognized design methods.

System Piping - Zone Circulators

Connect the MODULATING DELTA to the system piping as shown in Fig. 9 page 20 when zoning with zone circulators. The circulator supplied with the MODULATING DELTA should not be used for a heat zone. It must supply only the primary loop.

Install a separate circulator for each zone of space heating.

To control the zone circulators refer to Fig. 16, page 30 or Fig. 17 Page 31.

To ensure adequate flow rate through the MODULATING DELTA, maintain a minimum 1 inch diameter on the system piping connecting the appliance to and from the primary / secondary connection.

System Piping - Zone Valves

Connect the MODULATING DELTA to the system piping with primary secondary piping as shown in Fig. 8 page 19 when zoning with zone valves.

To control the system circulator refer to Fig. 14, page 28.

NOTICE

To ensure adequate flow rate through the MODULATING DELTA, maintain a minimum 1 inch diameter on the system piping connecting the appliance to and from the primary / secondary connection.

System Piping - Radiant Heating with Mixing Valve

Connect the MODULATING DELTA to the system piping as shown with a radiant system using a thermostatic mixing valve as shown in Fig. 9 page 20. The primary / secondary piping ensures sufficient return temperature to the MODULATING DELTA.

NOTICE

If the radiant system tubing contains no oxygen barrier, a stainless steel heat exchanger must be used. Failure to install a heat exchanger could lead to premature failure of the outer tank and void any warranty claim.

Page 23

Primary Piping

WARNING

Radiant heating system piping should include a means of regulating the primary return water. The return water temperature to the appliance should be maintained at 130ºF or higher. Failure to prevent low return water temperature to the appliance could cause premature failure of the appliance and it’s burner system resulting in severe personal injury, death or substantial property damage.

NOTICE

If the return system temperature is not maintained above 130ºF, the appliance will begin high fire rate and shut down the primary circulator to prevent condensation from occuring within the appliance.

Size the heating system piping and circulator to provide the flow needed for the radiant system.

To control the zone circulators reference Figs. 16 or 17, pages 30 & 31.

NOTICE

To ensure adequate flow rate through the MODULATING DELTA, maintain a minimum 1 inch diameter on the system piping connecting the appliance to and from the primary / secondary connection.

System Piping - Multiple Appliances Installation

Use a primary / secondary connection to the space heating piping as shown in Fig. 10 page 21 or other recognized design methods.

Page 24

Primary Piping

Cold Water Fill

Note 3

Note 2

straight pipe diameters

upstream of all circulators.

Notes:

1. Install a minimum of 12

mum of 3 gpm under any

operating condition.

2. Adjust bypass for a mini-

properly sized to overcome

8. Automatic Fill Valve

1. Modulating Delta

2. Pressure Relief Valve

3. Verify primary circulator is

3. Automatic Air Vent

6. Air Separator

5. Circulator

4. Drain/Purge Valve

9. Isolation Valve

7. Expansion Tank-Diaphragm

12. Flow Check Valve

11. Bypass Valve

10. Zone Valve

through the appliance.

provide adequate flow

the system pressure drop and

Fig. 7: Primary Piping - Zoning with Zone Valves

Page 25

Primary Piping

9 9

Note 2 & 3

Cold

Water

Fill

Note 4

circulators.

pipe diameters upstream of all

Notes:

1. Install a minimum of 12 straight

highest pressure drop to avoid

down stream of closely spaced

tees.

to center

imum of 4 pipe diameters center

2. Install closely spaced tees a max-

pipe diameters upstream and

3. Install a minimum of 6 straight

bypass valve on the zone with

velocity noise.

1. Modulating Delta

2. Pressure Relief Valve

3. Automatic Air Vent

6. Air Separator

7. Expansion Tank - Diaphragm

5. Circulator

4. Drain/Purge Valve

8. Automatic Fill Valve

9. Isolation Valve

12. Flow Check Valve

10. Zone Valve

11. Bypass Valve

4. Adjust pressure differential

Fig. 8: Primar

y Piping - Zoning with Zone

alves - Preferred Piping

Page 26

Primary Piping

Cold

Water

Fill

Note

2 & 3

Radiant Load

(If Applicable)

Notes:

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

2. Install closely spaced tees a maximum of 4 pipe diameters center to center

3. Install a minimum of 6 straight pipe diameters upstream and down stream of closely spaced tees.

Fig. 9: Primary Piping - Zoning with Circulators

alve

Modulating Delta

2. Pressure Relief Valve

3. Automatic Air Vent Drain/Pur

4. Circulator

Air Separator

7. Expansion Tank - Diaphragm

8. Automatic Fill Valve alve

Isolation

Zone Valve

10.

Bypass Valve

12. Flow Check Valve

13. Mixing Valve

Page 27

Primary Piping

Cold

Water

Fill

Note

2 & 3

tors.

straight pipe diameters

upstream of all circula-

stream of closely spaced

straight pipe diameters

upstream and down

center

pipe diameters center to

tees a maximum of 4

tees.

Notes:

1. Install a minimum of 12

1. Modulating Delta

2. Pressure Relief Valve

3. Automatic Air Vent

4. Drain/Purge Valve

2. Install closely spaced

6. Air Separator

8. Automatic Fill Valve

7. Expansion Tank - Diaphragm

5. Circulator

9. Isolation Valve

3. Install a minimum of 6

10. Zone Valve

11. Bypass Valve

12. Flow Check Valve

Fig. 10: Primary Piping - Zoning with Circulators - Multiple Appliances

Page 28

Gas Piping

External Manual

Shutoff valve

(must be within 6'

from the water heater)

Tee

Pipe Cap

Drip leg

Burner gas train

Male union

Pressure gauge port

(1/8" NPT plugged)

Direction of flow

3" Minimum

SECTION V - Gas Piping

Gas Supply Piping Connection

NOTICE

The gas supply piping must be installed in accordance to all applicable local, state and national codes and utility requirements.

1. Refer to Fig. 11 to pipe gas supply to the burner.

a. Install a pipe nipple and union at the

factory supplied 3/4” NPT gas coupling, for ease of service.

b. Install a manual shutoff valve in the gas

supply piping as shown in Fig. 11. For installations in Canada, the installer must tag and identify the main shutoff valve.

c. Install a drip leg on the gas supply line

prior to connecting to the MODULATING DELTA gas train as shown in Fig.

11.

2. Support the gas piping using hangers. Do not support the piping by the appliance or its components.

WARNING

Do not check for gas leaks with an open flame. Use a gas detection device or bubble test. Failure to check for gas leaks can cause severe personal injury, death or substantial property damage.

5. Use pipe dope compatible with natural and propane gases. Apply sparingly only to the male threads of pipe joints so that pipe dope does not block gas flow.

WARNING

Failure to apply pipe dope as detailed above can result in severe personal injury, death or substantial property damage.

WARNING

Use a two-wrench method of tightening gas piping near the appliance and its gas valve. Use one wrench to prevent the gas valve line connection from turning and the second to tighten adjacent piping. Failure to support the gas valve connection piping could damage the valve and the gas line components.

3. Purge all air from the gas supply piping.

4. Before placing the MODULATING DELTA into operation, check and test all connections for leaks.

Close the manual shutoff valve during any pressure test with less than 13”w.c..

Disconnect the MODULATING DELTA and its gas valve from the gas supply piping during any pressure test greater than 13”w.c..

Fig. 11: Recommended Gas Supply Piping

Page 29

Gas Piping

Length of Pipe

in Feet

SCH 40 1/2" 3/4" 1" 1-1/4" 1-1/2"

10 132 278 520 1050 1600 20 92 190 350 730 1100 30 73 152 285 590 860 40 63 130 245 500 760 50 56 115 215 440 670

75 45 93 175 360 545 100 38 79 150 305 460 150 31 64 120 250 380

Capacity of Pipe in Cubic Feet of Gas Per Hour

(based on 0.60 specific gravity, 0.30" w.c. pressure drop)

NATURAL GAS

Pipe Sizing - Natural Gas

1. Refer to Table 1 for pipe length and diameter requirements. Based on rated MODULATING DELTA input (divide by 1,000 to obtain cubic feet per hour).

- Table 1 is based on Natural Gas with a

specific gravity of 0.60 and a pressure drop through the gas piping of

0.30”w.c..

- For additional gas piping sizing infor-

mation, refer to ANSI Z223.1. For Canadian installations refer to B149.1 or B149.2.

Natural Gas Supply Pressure Requirements

1. Pressure required at the gas valve inlet supply pressure port:

- Maximum 13”w.c. at flow or no flow

conditions to the burner.

2. Install 100% lockup gas pressure regulator in the gas supply line if inlet pressure can exceed 13”w.c at any time. Adjust the lockup pressure regulator for 13”w.c maximum.

WARNING

DO NOT adjust or attempt to measure gas valve outlet pressure. The gas valve is factory-set for the correct outlet pressure. This setting is suitable for natural gas and propane and requires no field adjustment. Attempts by the installer to adjust or measure the gas valve outlet pressure could result in damage to the valve, causing potential severe personal injury, death or substantial property damage.

- Minimum 5”w.c. during flow conditions to the burner. Must be verified during start up and with all gas appliances operating.

Table 1: Gas Piping Sizing - Natural Gas

Page 30

Gas Piping

Venturi

Inlet Supply

Pressure Port

Propane

Orifice

Gas Valve

Gasket

Gas Valve

Pipe Fitting

Gas Valve

PROPANE GAS

Pipe Sizing - Propane Gas

1. Contact the local propane gas supplier for recommended sizing of piping, tanks and 100% lockup gas regulator.

Propane Gas Supply Pressure Requirements

1. Adjust the propane supply regulator provided by the gas supplier for 13”w.c. maximum pressure

2. Pressure required at the gas valve inlet supply pressure port:

- Maximum 13”w.c. at flow or no flow

conditions to the burner

- Minimum 5”w.c. during flow condi-

tions to the burner. Must be verified during start up and with all gas appliances operating.

Table 2: Propane Orifice Diameter

Model Orifice Diameter

PG-150 & PG PLUS-150 0.169

PG-199 & PG PLUS-199 0.221

WARNING

Prior to star

t up, ensure the appliance is set to fire propane. Check the rating label for the type of fuel. Check the gas valve for propane conversion label. If there is a conflict or doubt on the burner set up, remove the gas valve and check for proper propane orifice. See Fig. 12 and Table 2. Failure to ensure proper burner setup could result in severe personal injury, death or substantial property damage.

Fig. 12: Gas Valve / Venturi Assembly

Page 31

Internal Wiring

SECTION VI - Internal Wiring

WARNING

ELECTRICAL SHOCK HAZARD. For your safety, disconnect electrical power supply to the appliance before servicing or making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.

CAUTION

Prior to servicing label all wires before disconnection. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

General Requirements

- Wiring must be N.E.C Class 1.

- If original wiring installed in the appli-

ance must be replaced, use only type T, 90ºC wire or equivalent.

- The MODULATING DELTA must be

electrically grounded as required by National Electrical Code ANSI/NFPA 70 and/or CSA C22.1 Canadian Electrical Code - latest edition(s).

Page 32

Internal Wiring

- If any of the original wire as supplied

with the appliance must be replaced, it

must be replaced with type T wire or it's

equivalent.

- The wiring for 120V field connections to

the boiler shall have a minimum size of

14 AWG and a temperature rating of at

least 190 F (90 C) shall be used.

Note:

24V Wire Terminal Key

Wiring Legend

7 - Thermostat (T-T)

8 - Thermostat (T-T)

9 - Outdoor Sensor

10 - Outdoor Sensor

11 - External Limit - Manual Reset

12 - External Limit - Manual Reset

13 - External Limit - Auto Reset

14 - External Limit - Auto Reset

Mating Side of Male Plug

- Location in 9 Pin

Connector

L - Incoming Supply L

N - Incoming Supply N

G - Incoming Supply G

Wire Color Code Key

BK -Black

W - White

G - Green

BL - Blue

R - Red

O - Orange

V - Violet

Y -Yellow

BR - Brown

24V ac

Fig. 13: Wiring Diagram

Page 33

External Wiring

SECTION VII - External Wiring

Installation Compliance

All field wiring made during installation must comply with:

- National Electrical Code NFPA 70 and any other national, state, provincial or local codes or requirements.

- In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any other local codes.

WARNING

ELECTRICAL SHOCK HAZARD Before making any electrical connection to the MODULATING DELTA, disconnect electrical power supply at the service panel. Failure to comply can cause severe personal injury or death.

Line Voltage Connections

1. Connect 120 VAC power wire to the line voltage terminals strip located behind the control cover.

2. Route the incoming 120 VAC power wire through the left side jacket panel.

3. The appliance is provided with a service switch. Check local code requirements for compliance.

2. For proper operation, install the room thermostat on an inside wall away from influences of heat and cold, i.e. water pipes, areas of draft, lighting fixtures and fireplaces.

3. Set the thermostat anticipator (if applicable) as follows:

- Set for 0.2 amps when wired directly to

terminals 7 and 8 on the low voltage terminal strip located behing the control cover.

- Set to match the total electrical power

requirements of the connected devices when wired to zone relays or other devices. Refer to the relay manufacturers’ specifications and the thermostat instructions for additional information on the anticipator setting.

Outdoor Reset Sensor

1. The MODULATING DELTA may operate with a variable primary operating temperature using an optional 12 K outdoor sensor from Triangle Tube.

NOTICE

If the installer opts for a fixed operating temperature for the primary system, the outdoor sensor is not required and should not be installed.

NOTICE

If local electrical codes or conditions require an additional service switch, the installer must provide and install a fused disconnect or 15 amp (minimum) service switch.

Thermostat Wiring

1. Connect room thermostat or the end switch (isolated contact only) of a relay control panel to terminals 7 and 8 on the low voltage terminal strip located behind the control cover.

NOTICE

Variable range of primary operating temperature using the optional outdoor sensor is 140ºF to 186ºF.

2. Mount the outdoor sensor on an exterior wall. Ensure the sensor is shielded from direct sunlight and is not influenced by an external heat or cooling source.

3. Wire the outdoor sensor to terminals 9 and 10, on the low voltage terminal strip located behind the control cover.

4. Route sensor wires through the provided openings on the left jacket panel.

Page 34

External Wiring

24 V

ransformer by Others

Honeywell V8043

Zone Valves

or Equivalent

Honeywell R8285D Transformer / Relay or Equivalent

Low Voltage Terminal Strip

System Circulator

24V Low Voltage Wiring

120V High Voltage Wiring

oom Thermostats

120V

To MODULATING DELTA

Additional 24V Limit Wiring

The MODULATING DELTA provides 24V terminal connections for additional limit controls. These limit terminal connections will provide a "hard" lockout requiring a manual reset of the control, or a “soft” lockout in which the control will automatically reset.

For limit control requiring a manual reset (hard lockout) remove jumper and use low voltage terminals 11 and 12.

For limit control that will reset automatically when the condition is corrected (soft lockout) remove jumper and use low voltage terminals 13 and 14.

System Circulator - Zone Valve Application

To energize the system circulator shown as Item 5 in Fig. 8 page 19 reference Fig. 14. Installer to provide a Transformer / Relay such as Honeywell R8285 or equivalent and Zone Valves with isolated end switch such as Honewell V8043 or equivalent.

Storage Tank Recirculation

To energize the recirculation circulator between the MODULATING DELTA and a storage tank as shown as Item 7A in Fig. 6 page 13 reference Fig. 18 page 31. Installer to provide a transformer/relay such as Honeywell R845A or equivalent.

Fig. 14: Secondary System Circulator Wiring

Page 35

External Wiring

igh Voltage

120

.A.C.

V.A.C.

Room

Thermostat

Room

Thermostat

Zone 1

Zone 2

Additional zones

Additional zones may

be added as shown above

To MODULATING DELTA

Low Voltage

Terminal Strip

Transformer

(Power)

Zone

Valve

Zone Valve

To MODULATING DELTA

Low Voltage

Terminal Strip

High Voltage

120

V.A.C.

Room

Thermostat

Room

Thermostat

Zone 1

Zone 2

Additional zones

Additional zones may

be added as shown above

Transformer

(Power)

Zone

Valve

Zone Valve

* Isolation relay

4 Wire Zone Valve

3 Wire Zone Valve

*Use isolation relay on 3-wire

zone valve with non-isolated

ransformer and

end switch.

the MODULATING DELTA

control can burn out if isolation

relay is not used.

Fig. 15: Multiple Zone Field Wiring Using Zone Valves

Page 36

External Wiring

To MODULATING DELTA

Low Voltage

Terminal Strip

Circulator

Zone 1

Thermostat

one 1

Honeywell

845A

Relay

120

VAC

Circulator

Zone 2

Thermostat

zone 2

Additional zones may be

added as shown above

Fig. 16: Field Wiring Using Zone Circulators.

Page 37

External Wiring

Thermostat

one 1

Zone 1 Circulator

120V

MODULATING DELTA

Low Voltage

Terminal Strip

Zone 2 Circulator

Zone 3 Circulator

Thermostat

Zone 2

Thermostat

Zone 3

T1 T1 T2T2T3 T3

C2C2C1C1PRPR

X2X1L1L2ZC

Bronze

Circulator

Storage Tank

Thermostat

Honeywell

R845A

Relay

120

VA C

Fig. 17: Typical Zone Relay Panel Wiring

Fig. 18: Storage Tank Recirculation Wiring

Page 38

Start-Up Preparation

SECTION VIII - Start Up Preparation

Check System and Domestic Water Chemistry

WARNING

Do not use petroleum-base cleaning or sealing compounds in the primary system. Damage to seals and gaskets in the system components could occur, resulting in substantial property damage.

NOTICE

System water including additives must be practically non-toxic, having a toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial Products.

Water pH Level 6.0 to 8.0

Maintain the primary system water pH between 6.0 and 8.0. Check using litmus paper or contact a water treatment company for a chemical analysis.

If the pH does not meet this requirement, do not operate the MODULATING DELTA or leave the appliance filled until the condition is corrected.

Water Hardness Less Than 7 Grains

NOTICE

Any water conditioning system must be installed and maintained in accordance with the water conditioner’s manufacturer’s specifications and within the operating guidelines of the MODULATING DELTA.

Chlorinated Water

Do not use the MODULATING DELTA inner or outer tank to heat a swimming pool or spa directly.

Maintain the chlorine level of the water in the inner and outer tanks at levels considered safe for drinking.

Flush Primary and Domestic System to Remove Sediment

The installer must flush both the primary and domestic system to remove any sediment to allow proper operation of the MODULATING DELTA.

Flush the systems until the water runs clean and is free of sediment.

For primary zoned systems, each zone should be flushed through a purge valve. Purge valves and isolation valves should be installed on each zone to allow for proper flushing of the system.

For areas with unusually hard water (hardness above 7 grains) consult a water treatment company.

Chloride Concentration Less Than 80 mg/L

For those installations that use a water softener or conditioner, consult the water treatment company.

Check and Test Antifreeze

For primary systems containing antifreeze solutions, follow the antifreeze manufacturer’s instructions in verifying the inhibitor level and to ensure the fluid characteristics are within specification requirements.

Due to the degradation of inhibitors over time, antifreeze fluids must be periodically replaced. Refer to the manufacturer of the antifreeze for additional instructions.

Page 39

Start-Up Preparation

NOTICE

System water, including additives must be practically non-toxic, having a toxicity rating of Class 1, as listed in Clinical Toxicology of Commercial Products.

Use of Antifreeze in the Primary System

WARNING

NEVER use automotive or ethylene glycol antifreeze or undiluted antifreeze in the primary system as freeze protection. This can cause severe personal injury, death or substantial property damage if ignored.

Determine the antifreeze fluid quantity using the system water content volume and following the antifreeze manufacturer instructions.

The primary outer tank volume of the MODULATING DELTA is approximately 20 gallons. Remember to include the volume of the expansion tank.

Check with local codes requirements for the installation of back flow preventers or actual disconnect from the make up water supply line.

Ensure the concentration of antifreeze to water does not exceed a 50/50 ratio.

NOTICE

System water including additives must be practically non-toxic, having a toxicity rating of Class 1, as listed in Clinical Toxicology of Commercial Products.

Filling the Inner (Domestic) Tank and System

WARNING

Proceed with filling instructions for the inner and outer tanks only after ensuring the water meets the requirements listed in this installation manual. Failure to comply could result in damage and improper operation of the appliance.

CAUTION

Never operate the MODULATING DELTA unless both the inner and outer tanks are completely filled.

CAUTION

Always fill the inner tank prior to filling and pressurizing the outer tank. Failure to properly fill the inner tank could result in damage to the inner tank.

1. Ensure the domestic drain valve is closed.

2. Open the isolation valves on the domestic cold supply piping to the MODULATING DELTA and on the domestic hot outlet piping to the building (if provided).

3. Vent any air from the domestic piping system by opening faucets near the appliance. Continue filling the domestic system until there is a constant flow of water from the faucets.

4. Close the hot water faucets.

Filling the Outer (Primary) Tank and System

1. Close the primary drain valve located on the rear of the appliance and any manual or automatic air vent in the system.

2. Open all system isolation valves.

Page 40

Start-Up Preparation

3. Fill the outer tank to correct system pressure. Correct pressure will vary with each application.

NOTICE

Typical residential system fill pressure is 12 psi. System pressure will increase when system temperature increases. Operating pressure of the system should never exceed 25 psi.

4. Allow air to escape from the outer tank by opening the automatic air vent provided with the MODULATING DELTA.

5. Purge air in each zone of the primary system through the purge valve. Open air vents to allow air to be purged in the zones.

6. Once the system is completely filled and purged of all air, check the system pressure and check for leaks.

Check For Gas Leaks

WARNING

Prior to start-up and during initial operation, smell near the floor and around the appliance for gas odorant or any unusual odor. Do not proceed with the start-up if there is any indication of a gas leak. Any leaks found must be repaired immediately.

WARNING

DO NOT adjust or attempt to measure gas valve outlet pressure.

The gas valve is factory-set for the correct outlet pressure. This setting is suitable for natural gas and propane and requires no field adjustment.

Attempts by the installer to adjust or measure the gas valve outlet pressure could result in damage to the valve, causing potential severe personal injury, death or substantial property damage.

WARNING

Propane installations only - The propane supplier mixes an odorant with the propane to make its presence detectable. In some cases the odorant can fade and the gas may no longer have an odor.

Prior to start-up of the appliance and periodically after start-up, have the propane supplier check an verify the odorant level.

Check Thermostat Circuit

- Disconnect the external thermostat wires from terminals 7 and 8 on the low voltage terminal strip.

- Connect a voltmeter across the wire ends of the external thermostat wiring.

- Close each thermostat, zone valve and relay in the external circuit one zone at a time and check the voltage reading across the wire ends.

- There should

NEVER be voltage mea-

sured at the wire ends.

- If voltage is measured at the panel under any condition, check and correct the external wiring.

NOTICE

In systems using 3-wire zone valves backfeed of voltage to the appliance is a common problem. Use an isolation relay to prevent voltage from the external circuit entering the MODULATING DELTA control panel.

Page 41

Start-Up Procedures

SECTION IX - Start-Up Procedures

Final Checks Before Start-up

c Verify the MODULATING DELTA and

the primary and domestic systems are full of water and all system components are correctly set for operation.

c Verify Start-up Preparation items outlined

on pages 32 thru 34 have been completed.

c Verify all electrical connections are

correct and securely fasten.

c Inspect vent piping and combustion air

inlet piping for signs of deterioration from corrosion, physical damage or sagging. Verify combustion air piping and vent piping are intact and correctly installed. See appropriate venting guide.

c Verify Burner Configuration - Propane

Only.

Check for proper labeling on the gas valve and the rating label for propane configuration.

If there is doubt on the burner configuration, remove the gas valve and check for proper propane orifice. See Fig.12 and Table 2 on page 24. Refer to Propane Conversion Instructions for additional information on assembly of the gas valve.

Appliance Start-up

2. Check for loose electrical connections, blown fuse (external or internal to the MCBA Control) or open service switch.

3. Is the gas supply valve open at the appliance and meter?

4. Is incoming gas supply pressure more than 5”w.c. for natural or propane with all gas appliances operating and less than 13” w.c. with all gas appliance turned off.

5. Are the heating thermostats set below room temperature?

If none of these conditions correct the problem, refer to the MODULATING DELTA Troubleshooting guide.

Check the Appliance and System

c Check Domestic Piping.

Check domestic piping and system components for leaks. If found, shut down the appliance and repair immediately.

c Check Primary Piping.

Check primary system piping and components for leaks. If found, shut down the appliance and repair immediately.

Purge any remaining air from the system piping.

Air in the system piping will interfere with circulation creating heat distribution problems and system noise.

1. Turn the ON-OFF switch located on the front jacket panel to the OFF position. Turn the electrical supply or any external service switch to the appliance in the ON position.

2. Read and follow the Operating Instructions outlined on page 37 to start the appliance.

If Appliance Does Not Start Correctly

1. Verify CH (parameter 2) and DHW (parameter 3) Systems are turned ON or set to “01”. Read the Boiler Display Parameter Section of the manual on page 42 for more information.

c Check Vent Piping and Combustion Air

Piping.

Check for gas-tight seal at every connection and seam of the venting and combustion air inlet.

WARNING

Venting system must be sealed gas-tight to prevent flue gas spillage and potential carbon monoxide emissions, which will result in severe personal injury or death.

Page 42

Start-Up Procedures

c Check Gas Piping

Check around the appliance for gas odor following the procedure outlined in this manual on Page 34.

WARNING

If any gas leaks are found or suspected, shut the appliance down immediately. Use a gas detection device or bubble test to locate the source of the gas leak and repair at once. Do not operate the appliance until the leak is corrected. Failure to comply with this procedure could result in severe personal injury, death or substantial property damage.

c Verify Flame Pattern and Combustion

Check the flame pattern through the inspection port of the burner. The flame should be stable and the full length of the burner head openings.

WARNING

The combustion levels should be measured at high and low firing rates, refer to page 40 on how to set the firing rates. If the combustion levels are not within the range given in Table 3 for the firing rate, shut the appliance down and contact Triangle Tube’s Engineering Department. Failure to comply with this requirement could result in severe personal injury, death or substantial property damage.

Table 3: Recommended Combustion Levels

Natural Gas Propane

O2 Min. 2.30% 2.70%

O2 Max. 4.50% 4.30%

CO2 Min 9.30% 11.10%

CO2 Max 10.50% 12.00%

CO Max 100 ppm 100 ppm

The combustion testing and adjustments must be performed by a qualified installer, service agency or the gas supplier. All combustion measurements must be performed with calibrated equipment to ensure proper reading and accuracy.

Test for CO2 or O2 and for CO during high and low firing rates. To manually place the appliance into high or low fire mode, reference page 40, the combustion reading should be within the range listed in Table 3.

The CO level should not exceed 100 ppm when combustion is correct.

c Measure Input - Natural Gas Only

1. Ensure the appliance is firing at maximum firing rate. To manually place the appliance into high fire mode, reference page 40.

2. Operate the appliance for approximately 10 minutes.

3. Turn off all gas appliances within the building, except the MODULATING DELTA.

4. At the gas meter, record the time required to use one cubic foot of gas.

5. Calculate Natural gas input using the following equation:

3600 x 1000 / number of second recorded for one cubic foot of gas = BTU/H.

6. The BTU/H calculated should approximate the input rating listed on the appliance.

Page 43

Start-Up Procedures

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING

If you do not follow these instructions exactly, a fire or explosion may 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. 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.

T TO DO IF YOU SMELL GAS

WHA

• 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.

DO NOT try to light the

OPERATING INSTRUCTIONS

1. STOP! Read the safety information above. This

appliance is equipped with an ignition device which automatically lights the burner. DO NOT try to light the burner by hand.

2. Set room thermostat(s) to lowest setting. Turn the external manual gas valve handle clockwise

“CLOSE” (valve handle shall be per-

pendicular to gas piping).

3. Turn the service switch on the control panel OFF.

4. Remove the front jacket panel on the appliance.

5. Turn the external manual gas valve handle counter clockwise ply (valve handle shall be parallel to gas piping).

6. Wait five (5) minutes to clear out any gas. If you then smell gas in the jacket enclosure or around the appliance, ST information above. If you don’t smell gas, go to the next step.

OP! Follow “B” in the safety

to “OPEN” gas sup

• If you cannot reach your gas supplier, call the fire department.

C. Use only your hand to turn the external manual gas

valve. Never use tools. If the valve will not 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.

7. Turn the service switch on the control panel “ON”.

8. Set room thermostat(s) to desired setting(s).

9. The control panel display will show a sequence of numbers (0,1,2,3,4,etc.) as the left digit. Sequence digit 3 or 4 indicates the appliance is firing. Sequence digit 0 means there is no call for heat (all external thermostats are satisfied).

10. If the appliance will not operate with a call for heat and the system piping is not hot, follow the instruc-

tions “To Turn Off Gas to Appliance”, below and call your service technician or gas supplier

11. Replace the front jacket panel. Make sure the panel is seated firmly in place and all mounting screws are tightened.

TO TURN OFF GAS TO APPLIANCE

1. Set the room thermostat to lowest setting.

urn the service switch on the control panel to

2. “OFF”

3. Turn the external manual gas valve handle clockwise

to “CLOSE”.

Page 44

Start-Up Procedures

Set Domestic DHW Temperature

1. Press the MODE button until the display shows PARA. This is the parameter mode of the control.

2. Press the STEP button until the first digit on the display shows “1”. The last three digits on the display shows the domestic hot water storage temperature.

3. Press the “+” or “-” button to change the setting of the storage temperature setting.

4. Press the “STORE” button to save the setting.

NOTICE

Factory setting of Parameter 1 is 140ºF. The temperature range of Parameter 1 is 68ºF to 140ºF. Any setting lower factory setting of 140ºF will affect domestic capacity and performance.

NOTICE

Digits and characters shown as [ in the following outline, represent the

ol panel display. The last three dig-

contr its on the display is the measured primary water temperature and is shown in the manual with

Operation Verification - Domestic Hot Water

[---].

than the

0000000

A---] Self check on Power up.

[

0---] no call for heat request.

[

1---] The prepurge cycle. The blower

becomes energized and the 10 second prepurge cycle begins.

2---] The burner will begin the ignition

[ sequence. The control module will energize and open the gas valve and begin the spark for ignition.

- If the burner flame proves within 4.5 seconds, the burner will begin to modulate to full input rate after an approximate 10 second flame stabilization period.

- If the burner flame is not proven within

4.5 seconds, the control module will repeat the ignition sequence. If the flame is not proven after 5 attempts, the control will lockout and display [

]

- To verify flame failure lockout, close the manual shut off valve on the gas supply piping to the appliance and repeat ignition sequence. When verification is complete, ensure the manual shut-off valve is returned to the open position.

4---] This indicates normal operation

[ for DHW. The burner will begin modulating its input based on the length of demand for DHW. The burner will not go into the low input rate for the 1 minute flame stabilization period that occurs in CH central heating mode.

3. Lower the DHW set point (Parameter 1) to satisfy the call for heat.

E-

1. Press and hold the “+” button for 2 seconds. The display should flash a “c” follow by “OFF” indicating the CH mode has been disabled. Parameter 3 should read as “00” for a verification.

2. Raise the DHW setting (Parameter 1) if needed to initiate a call for heat. The display should show:

1---] The post purge cycle begins. The

[ control module closes the gas valve and the blower continues for a 30 second post purge.

0---] Appliance is in standby MODE

[ waiting for a CH or DHW call for heat.

4. Verify the DHW operation of the appliance by repeating the operation sequence sever al times.

Page 45

Start-Up Procedures

5. Return the DHW setpoint (Parameter1) and room thermostat to the desired setting.

6. Press and hold the “+” button for 2 seconds to enable the space heating, the display will flash a “c” followed by the CH setpoint temperature. Parameter 3 should read as “01” for a verification.

Set Primary CH Target Temperature

1. Press the MODE button until the display shows “PARA”. This is the parameter mode of the control.

2. Press the STEP button until the first digit on the display shows "4". The last three digits on the display shows the outlet water temperature setting (high limit).

3. Press the "+" or "-" button to change the setting of the outlet temperature (high limit).

NOTICE

If an outdoor sensor is used, then the setting of the primary CH Target temperature is the target temperature when the outdoor temperature is at or below 0ºF. When the outdoor temperature is higher than 0ºF the control will calculate the target temperature between the minimum and maximum temperature settings.

4. Press the "STORE" button to save the setting.

Operation Verification - Space Heating

NOTICE

Digits and characters shown as [ in the following outline, represent the control panel display. The last three digits on the display is the measured primary water temperature and is shown in

-----

the manual with [

1. Press and hold the “-” button for 2 seconds. The display should flash a “d” follow by “OFF” indicating the DHW mode has been disabled Parameter 2 should read as “00” for a verification.

] .

00-----

2. Set the room thermostat to the lowest setting.

3. Turn off power to the appliance, wait a few seconds and turn on power to the appliance.

4. The following displays should occur:

A---] Self check on power up

[

0---] No call for heat

5. Initiate a call for heat by raising the set point of the room thermostat to the highest setting. The following display should occur.

1---] This is the prepurge cycle. The

[ blower and the CH circulator become energized. The blower has a 10 second prepurge cycle.

2---] This is the ignition cycle. The con-

[ trol module will energize and open the gas valve and begin the spark for ignition.

- If the burner flame proves within 4.5

seconds, the burner will continue to fire at an ignition fan speed for approximately 10 seconds to stabilize the flame.

- If the burner flame is not proven within

4.5 seconds, the control module will repeat the ignition sequence. If the flame is not proven after 5 attempts the control will lockout and the display will show [

- To verify flame failure lockout, close

the manual shut off valve on the gas supply piping to the appliance and repeat ignition sequence. When verification is completed, ensure the manual shut off valve is returned to the open

position.

3---] This is the normal operation cycle.

[ After the flame is proven and stabilized the burner will fire at low input for approximately 1 minute. After this time period, the control module will begin to modulate the burner firing rate based on actual primary outlet temperature and the set point temperature.

E-02]

Page 46

Start-Up Procedures

Test function: Burner on, high fire mode

Test function: Burner on, low fire mode

H L

Display

Boiler function

6. Allow the appliance to operate and allow the primary outlet temperature to reach the set point temperature.

[6---] This begins the burner shutdown and post purge cycle. The CH circulator will continue to run until the room thermostat is satisfied.

7. Lower the room thermostat set point below the room temperature to end the call for heat.

1---] This begins a post purge cycle.

[ When the room thermostat is satisfied, the appliance will shutdown. The control module will close the gas valve and the blower will continue for 30 seconds for a post purge cycle before shutting down. If another call for heat is initiated during the post purge cycle, the burner will remain off for an additional 30 seconds before starting a new ignition sequence and the circulator will be energized.

7---] The CH circulator will continue

[ for a 1 minute post pump cycle. The MODULATING DELTA is in STANDBY mode waiting for a call for heat.

8. Verify the operation of the appliance by repeating the operational sequence several times.

This is the standard mode for the MODULATING DELTA. The control automatically returns to this mode after 20 minutes if no keys have been pressed on the display. Any parameters that were modified are then enabled.

The first character shows (on left side of display) the current status of the appliance depending on the condition of both the appliance and the burner. The last 3 characters indicate the current temperature.

If the burner is blocked due to a “soft” lockout, the display alternates between a 9 followed by the primary outlet temperature and a “b” with a two digit error code.

TO TEMPORARILY PLACE THE BURNER INTO HIGH FIRE TEST MODE:

the MODE button until “ Then press and hold both the MODE and “+” button simultaneously until the first digit flashes “H”.

While in the test mode:

- high limit will function

- CH circulator will function

- the test mode will time out in approximately 10 minutes

StBY” is displayed.

press

9. Return the room thermostat to a desired setting. Press and hold the “-” button for 2 seconds to enable the DHW mode. The display should flash a “d” followed by DHW, set temperature. Parameter 2 should read as “01” for a verification.

Control Display

Standby Mode

After the appliance is turned on, the control panel will display STANDBY mode as shown in the figure above.

TO TEMPORARILY PLACE THE BURNER INTO LOW FIRE TEST MODE:

the MODE button until “ Then press and hold both the mode and “-” button simultaneously until the first digit flashes “L”.

Press and hold the “+” and “-” button simultaneously to deactivate the high or low fire test mode, while in the “

StBY” is displayed.

StBY” mode.

press

Page 47

STANDBY, no demand for heat

Fan prepurge (10 seconds) or post purge cycle

gnition sequence

Burner ON for space heating (CH)

Burner ON for domestic water heating (DHW)

Pre-check for air flow prior to prepurge cycle

Burner OFF due to reaching temperature set point Post pump cycle for primary space heating (1 minute)

Burner blocked:

Supply temperature too high (202 F) .Burner will remain OFF until outlet temperature drops below set point.

Return temperature too high (202 F). Burner will remain OFF until temperature drops below set point.

Return temperature is measured higher than supply temperature. Burner will remain OFF until corrected.

Supply temperature increased too quickly. Burner will remain OFF for a 10 minute period. Burner will recycle, increasing waiting period 1 minute for a max. 15 minutes

LWCO pressure device or external limit (terminals 13 & 14) is OPEN. Burner off for 150 seconds, auto reset.

2 3 4 5 6 7

Display

unction

No blower signal

Blower signal present, Burner will remain OFF until condition terminates

Temperature rise between the supply and return is more than 54 F. Burner will remain OFF for 150 seconds. Burner will recycle increasing waiting period 1 minute for a max. 20 cycle.

The IDWH Sensor is short-circuited.

The IDHW Sensor is not properly connected to the low voltage terminal strip.

Start-Up Procedures

Standby Mode Display

Page 48

Start-Up Procedures

Domestic Hot Water Storage Temperature Setting (See Note 1)

omestic Hot Water Setup (See Note 2)

Space Heating Setup (See Note 3)

Maximum temperature in space heating (CH) mode. In applications using an outdoor sensor, this is the boiler outlet target temperature at an outdoor temperature of 0 F or less

1. 2

MODE

STEP

Key:

Display

Key:

Display

Description of parameters

Pressing MODE once

NOTICE

If the “+” button is held in for 2 seconds while in the tem (Parameter 3) will be turned OFF and the display will show and hold the “+” button to turn the CH system back ON, the display will show “c” followed by CH set point temperature (Parameter 4) or CH target temperature. If the “-” button is held in for 2 seconds while in the DHW system (Parameter 2) will be turned OFF and the display will show “dOFF”. Press and hold “-” button to turn the DHW system back ON, the display will show “d” followed by domestic set point temperature (Parameter 1).

Setting The Control Parameters

“StBY” mode the CH sys-

“cOFF”. Press

“StBY” mode

Note 1: This parameter is factory set to 140ºF. It is important to note the control adds 46ºF to this setting, to establish the operating limit during a DWH call for heat

Parameter Mode

To access PARAMETER mode when the system is in STANDBY mode, press the MODE button once.

To scroll through the list of parameters, simply press the STEP button. To modify a parameter value, use the “+” or “-” keys. Then press STORE to save the value you just changed. The display flashes once to confirm the data has been saved.

To activate the parameters you changed, press MODE once more (which brings you into INFORMATION mode). However, if you do not press a key, the system returns to STANDBY mode after 20 minutes and automatically enables the changes.

Note 2: This parameter should not be changed from the factory setting. The performance of the DHW will be affected and can become unreliable.

Note 3: This parameter should not be changed from the factory setting. The performance of the CH (Central/Space Heating) will be affected and can become unreliable.

Page 49

Start-Up Procedures

Measured CH outlet (supply) water temperature

Measured CH inlet (return) water temperature

Measured DHW storage temperature

Measured outdoor temperature (

Optional outdoor sensor required)

1 2

3 4

STEP

This parameter is not used

STEP

Key:

Display

Description of parameters

Rate of increase in the outlet water temperature F/sec

Rate of increase in the return water temperature F/sec

Rate of increase in the DHW temperature F/sec

6 7

8 9

STEP

Calculated (target) outlet water temperature

STEP

TEP

ODE

MODE

Key:

Display

Pressing MODE once

Pressing MODE twice

Accessing Control Information

Information Mode

To switch from STANDBY mode to INFORMATION mode, press MODE twice. Press STEP until the system displays the information you need. The point located behind the first position flashes to indicate that the appliance is in INFO mode.

Note : The last three digits on the display is the measured or calculated temperature or rate of increase and is shown in the manual with

[[------]].

If STEP is pressed after parameter 9, the dis play will show

A-32.

Page 50

Gas valve harness not properly connected

Failed ignition after 5 attempts

Power supply lost after lockout occured

Internal control failure

E E

2 03 0

8 0

E E

Display

Hard Lockout

Internal control failure

Flame detected prior to burner startup

Internal control failure

External limit (terminals 11 & 12) control is OPEN

Blower signal does not reset to zero

No blower signal present

Supply temperature sensor is short circuited

1 1

E E

Internal Control error - failure to read parameters

Return temperature sensor is short circuited

Supply temperature sensor is OPEN

Return temperature sensor is OPEN

Internal control failure

Inadequate power supply to the fan

E E

32 3

E E E

E E

Return temperature exceeds 204 F

Supply temperature increased too rapidly

Internal control failure

E E

Supply Temperature exceeds 204 F

Start-Up Procedures

Error (Hard Lockout) Mode

If a system fault occurs while the appliance is running, the system goes into lockout and the display starts to flash with the first digit as an E and the next two digits give the code for this fault.

For a detailed description of the error codes, reference the MODULATING DELTA Troubleshooting Guide.

CAUTION

The freeze protection feature is disabled during a Hard Lockout.

WARNING

During a hard lockout or low water dition the appliance will not re-start without service. If the heating system is left unattended in cold weather appropriate safeguards or alarms should be installed to prevent property damage. An optional control/interface is available from Triangle Tube which will provide a set of alarm contact which will close during a hard lockout.

con-

Page 51

Start-Up Procedures

Setting the Thermostatic Mixing Valve

NOTICE

The thermostatic mixing valve controls the outlet hot water temperature delivered to the faucets.

WARNING

POTENTIAL SCALD HAZARD The mixing valve must be installed on the MODULATING DELTA. Removal of the mixing valve will create a potential scald hazard resulting in severe personal injury or death.

- Use a L-Key to remove the set screw securing the knob to the valve.

- Remove the knob and lock ring from the valve.

NOTICE

To calibrate the outlet temperature, allow the water to run for approximately 2 minutes and measure the water with a thermometer. To adjust the valve setting, rotate the knob clockwise to decrease the water temperature or counter-clockwise to increase the water temperature.

- Once the desired temperature is achieved, remove the knob and refit the lock ring onto the valve aligning the ring indicator mark with the valve’s “Mix” marking.

- Locate the tab on the inner face of the knob into the retainer in the locking ring. Secure the knob with setscrew.

- Record the valve performance on the Installation Record included in this manual.

- Replace the knob and adjust the set temperature of the valve to the desired temperature.

DANGER

For proper operation of the thermostatic mixing valve, the manual valve on the U-tube assembly MUST remain open to avoid a potential scald hazard.

Page 52

Check-Out Procedures

SECTION X- Check-Out Procedures

NOTICE

Perform the following check-out procedures as outlined and check off items as completed. When procedures are completed, the installer should complete the installation record on page 47.

Check-out Procedures

c Inner tank is filled with water.

c Outer Tank is filled with water.

c Water chemistry checked and verified

as outlined on pag 32.

c The automatic air vent on the appliance

and any place within the system are open one full turn.

c Air is purged from the heating zones

and primary system.

c Domestic piping is purged of air and

has been checked for leaks.

c Check the incoming gas pressure to

ensure a minimum pressure of 5”w.c during flow conditions to all appliances and a maximum pressure of 13”w.c during flow and non-flow conditions for Natural and Propane.

c The thermostatic mixing valve is

adjusted to the desired domestic hot water outlet temperature.

c Adjusted balancing valves and system

limit controls to provide design temperatures to the primary space heating system.

c In multiple zone applications verify,

flow of primary heating water to each zone is adjusted correctly .

c Check and verify room thermostats

functions properly and the thermostats heat anticipator (if used) was properly set.

c Observed several operating cycles for

proper operation of the MODULATING DELTA and the system.

c Burner has been confirmed as properly

configured for Propane application. (If applicable).

c Thermostat circuit wiring checked and

verify that no voltage is present at Terminals 7 and 8 as outlined on page

34.

c Operating Instructions on page 37 were

followed during start-up.

c Combustion levels and flame pattern

verified as outlined on page 36.

c Measure the rate of input on Natural

Gas as outlined on page 36.

c Set the room thermostat(s) to the

desired room temperature.

c Reviewed all instructions shipped with

the MODULATING DELTA with the homeowner or maintenance personnel.

c Completed the Installation Record on

page 47.

c Ensure all manuals and other documen-

tation are returned to the Installation envelope and given to the owner for safekeeping.

Page 53

Installation Record

MODULATING DELTA Model Number:

Serial Number:

Date of Installation:

Fuel: Natural Gas Propane

Measured Rate of Input:

Combustion Readings:

The following items were completed during installation:

Installation instructions have been followed and completed

Check-out procedures have been followed and completed

Information regarding the unit and installation received and left with owner / maintenance personal.

Installer Information

(Company)

(Address)

(Phone Number)

Btu/hr

____________________________________________________________________

_________________________________________________________________

ppm

SECTION XI - Installation Record

Page 54

Maintenance Schedule

SECTION XII - Maintenance Schedule

Service Technician

At least on an annual basis the following maintenance should be performed by a qualified service technician:

General

• Attend to any reported problems.

• Inspect the interior of the combustion chamber; clean and vacuum if necessary.

• Clean the condensate trap in the vent system and fill with fresh water.

• Check for leaks; water, gas, flue and condensate.

• Verify flue vent piping and air inlet piping are in good condition and sealed tight.

• Check primary system water pressure/ primary system piping/primary expansion tank.

Owner Maintenance

Periodically:

• Check the area around the appliance.

• Check the combustion air inlet and ventilation openings for blockage.

• Check the pressure gauge.

• Check the operation of the domestic mixing valve.

Monthly:

• Check vent piping.

• Check combustion air inlet piping.

• Check the pressure relief valve.

• Check the temperature/pressure relief valve.

• Check the vent condensate drain system.

• Check the automatic air vents in the primary system.

• Check domestic water pressure/domestic system piping/domestic thermal expansion tank.

• Check ignition electrode (sand off any white oxide; clean and reposition).

• Check all control wiring and connections.

• Check burner flame pattern (stable and uniform) and flame.

Additional items if combustion or performance is poor:

• Clean baffles and flue ways.

• Remove burner assembly and clean burner head using compressed air only.

Once the maintenance items are completed, review the service with the owner.

Every 6 months:

• Check both primary piping and gas supply piping for corrosion or potential signs of leakage.

• Operate the pressure relief valve.

• Operate the temperature/pressure relief valve.

WARNING

Follow the maintenance procedures given throughout this manual. Failure to perform the service and maintenance or follow the directions in this manual could result in damage to the MODULATING DELTA or in system components, resulting in severe personal injury, death or substantial property damage.

Page 55

Maintenance Procedures

SECTION XIII - Maintenance Procedures

MAINTENANCE PROCEDURES

WARNING

The MODULATING DELTA should be inspected and serviced annually, preferably at the start of the heating season, by a qualified service technician. In addition, the maintenance and care of the appliance as outlined on page 48 and further explained on pages 49 through 53 should be performed to assure maximum efficiency and reliability of the appliance. Failure to service and maintain the MODULATING DELTA and the system components could result in equipment failure, causing possible severe personal injury, death or substantial property damage.

NOTICE

The following information provides detailed instruction for completing the maintenance items outline in the maintenance schedule on page 48. In addition to this maintenance, the MODULATING DELTA should be serviced at the beginning of the heating season by a qualified service technician.

Refer to the list of potential materials listed in the MODULATING DELTA Vent Supplement. If any of these products are in the room from which the appliance takes its combustion air, they must be removed immediately or the combustion air intake must be relocated to another area.

Inspect Burner Area

Remove the burner hood and inspect the appearance of the burner components.

Vacuum any dirt or debris from the burner components.

Remove the venturi inlet elbow to check for dirt and debris. Remove any obstructions.

WARNING

Do not use solvents to clean any of the burner components. The components could be damaged, resulting in unreliable or unsafe operation.

Check System (Primary and Domestic) Piping

Inspect all piping on the Primary Heating system and the Domestic system for leaks and verify that the piping is leak free.

Inspect the fittings and components on the appliance and verify they are leak free.

Reported Pr

Any problems reported by the owner should be checked, verified and corrected before proceeding with any maintenance procedures.

Check Surrounding Area

Verify that the area surrounding the MODULATING DELTA is free of combustible / flammable materials or flammable vapors or liquids. Remove immediately if found.

oblems

WARNING

Eliminate all primary water system leaks. Continual fresh make-up water will reduce the outer tank life causing tank failure. Leaking water may also cause severe property damage to the surrounding area.

Page 56

Maintenance Procedures

Check Combustion/ Ventilation Air Openings

Verify that all combustion air and ventilation openings to the mechanical room or building are open and unobstructed. Check the operation and wiring of any automatic ventilation dampers.

Check and verify the vent discharge and the combustion air intake are free of debris and obstructions.

Inspect Vent System and Combustion Air Piping

Visually inspect the venting system and combustion air piping (if installed) for blockage, deterioration or leakage. Repair any vent joints that show signs of deterioration as per the vent manufacturer’s instructions.

When combustion air is ducted to the appliance, verify that the air inlet piping is connected and sealed.

WARNING

Check Domestic System

Verify all system components are correctly installed and operating correctly.

Check the outlet domestic temperature of the mixing valve and compare with the recorded temperature made during start-up.

Check Expansion Tank

Refer to Primary Piping, Page 15 for recommended location of the expansion tank and air eliminators.

Close -Type Tank:

- Ensure tank is partially filled with water leaving an air gap as a cushion. Refer to the manufacturer’s instruction for proper fill level.

- Ensure the tank is fitted with a device that reduces gravity circulation of airsaturated tank water back into the system. This device prevents air from bubbling up through the water as it returns from the system.

Failure to inspect the vent system and combustion air inlet piping and have any deficiencies repaired, can result in severe personal injury or death.

Check Primary System

Verify all system components are correctly installed and operating correctly.

Check the cold fill pressure for the system. Typical cold water fill pressure is 12 psig.

Verify the system pressure as the appliance operates at high temperature to ensure the pressure does not exceed 25 psig. Excessive pressure reading indicates expansion tank sizing is incorrect or system performance problems.

Inspect air vent and air separators in the system. Remove the caps on automatic air vents and briefly depress the valve stem to flush vent. Replace the cap when completed. Ensure vents do not leak, replace any leaking vents.

- Ensure no automatic air vents are used in the system. This will allow air to escape from the system instead of returning to the tank.

Diaphragm Tank:

- Ensure the system contains a minimum of one automatic air vent. Preferred location of the air vent should be atop an air eliminator.

- Remove the tank from the system and check the charge pressure. For residential applications the charge pressure is typically 12 psig. If tank does not hold a charge pressure, then the membrane is damaged and the tank should be replaced.

Page 57

Maintenance Procedures

Check Primary Relief Valve

Inspect the relief valve and lift the lever to verify flow at least annually or as recommended on the warning tag of the valve.

WARNING

Before manually operating the pressure relief valve, ensure the discharge piping is directed to a suitable place of disposal to avoid a potential scald hazard. The discharge piping must be full size without restriction and installed to permit complete drainage of both the valve and line.

If after closing the valve, the valve fails to seat properly or continually weeps, replace the relief valve. Ensure the cause of the relief valve to weep is the valve itself, not due to system over-pressurization caused by an expansion tank that is waterlogged or undersized.

Check Temperature / Pressure Relief Valve

Inspect the T&P relief valve and lift the lever to verify flow at least annually or as recommended on the warning tag of the valve.

WARNING

Inspection of Ignition Electrode

Remove the ignition electrode from the burner mounting plate.

Remove any white oxides accumulated on the electrode using fine grit sandpaper or steel wool. If the electrode does not clean to a satisfactory condition, replace the ignitor.

When replacing the ignition electrode, ensure the gasket is in good condition and correctly positioned. Replace gasket if neccessary.

Check All Gaskets

Ensure all gaskets are in good condition, correctly positioned and sealed. Replace gasket(s) if necessary, contact Triangle Tube for replacement part(s).

Check Control Wiring

Inspect all control wiring located behind the control panel and at the burner. Ensure wiring is in good condition and properly connected.

Check Parameter Limit Settings

Check Parameter 1 and 4 for proper settings. Check Parameter 2 and 3 for a “01” setting.

Before manually operating the pressure relief valve ensure the discharge piping is directed to a suitable place of disposal to avoid a potential scald hazard. The discharge piping must be full size without restriction and installed to permit complete drainage of both the valve and line.

If after closing the valve, the valve fails to seat properly or continually weeps, replace the relief valve. Ensure the cause of the weeping is the valve itself and not due to thermal expansion or a faulty or underpressurized thermal expansion tank.

Perform Start-up and Checkout Procedures

Start the appliance and perform the start-up procedure as listed in this manual.

Verify the cold water fill pressure is correct and the operating pressure of the primary system is within normal operating range.

Complete the checkout procedures as refer enced in this manual.

Page 58

Maintenance Procedures

Check Burner Flame

Remove burner cover and inspect the flame through the observation port on the burner mounting plate.

If flame pattern does not cover the entire burner surface, shut the appliance down and allow it to cool thoroughly.

Close the manual gas valve on the gas supply line and disconnect the gas piping to remove the burner assembly from the appliance. Remove control cover and disconnect electrical quick connects going to burner assembly.

Remove two nuts securing the burner mounting plate. See warning on page 53. Remove the burner assembly and screws to the burner head. Remove burner head and inspect for deterioration. Use compressed air or a vacuum to clean the burner head.

Remove the venturi and gas valve assembly from the blower.

Use the vacuum cleaner or compressed air to clean the interior of the blower assembly. Inspect the blower blades to ensure they are clean and not damaged.

Re-assemble the venturi and gas valve onto the blower. Ensure the venturi gasket is in good condition and positioned correctly.

Re-assemble the burner head onto the burner- mounting plate. Ensure the burner head gasket is in good condition and positioned correctly.

Secure burner mounting plate to the appliance with two nuts. Re-assemble the electrical quick connects to burner assembly, control cover and gas supply. Open the manual gas valve and place the appliance back into service.

Verify flame pattern & re-install burner cover.

Check Flame Signal

The flame signal should be at least 2µ Α. Refer to the MODULATING DELTA Trouble-shooting Guide for information on checking the flame signal.

Check the ignitor for fouling or damaged insulation if a low flame signal is read.

Check Combustion Levels

Refer to page 36 of this manual for measuring combustion levels and burner adjustments.

Review With Owner

Ensure the owner understands the importance to perform the maintenance schedule specified in this manual.

Remind the owner of the importance to call a licensed contractor should the appliance or system exhibit any unusual behavior.

Page 59

Maintenance Procedures

Handling of Previously Fired Combustion Chamber Insulation

WARNING

The combustion chamber insulation contains ceramic fibers, which are classified as a possible human carcinogen. When exposed to extremely high temperatures, the ceramic fibers, which contain crystalline silica, can be converted into cristobalite.

Avoid Breathing and Contact with Skin and Eyes

When removing or repairing the combustion chamber insulation follow these precaution measures:

1. Use a NIOSH approved respirator which meets OSHA requirements for cristobalite dust, similar to N95. Contact NIOSH at 1-800-356-4676 or on the web at www.cdc.gov/niosh for latest recommendations.

2. Wear long sleeved, loose fitting clothing, gloves and eyes protection.

3. Assure adequate ventilation.

4. Wash with soap and water after contact.

5. Wash potentially contaminated clothes separately from other laundry and rinse washing machine thoroughly.

6. Discard used insulation in an air tight plastic bag.

NIOSH Stated First Aid:

Eye/Skin: Immediately irrigate Breathing: Clean fresh air

Page 60

Replacement Parts

Fig. 19 : Modulating Delta Replacement Parts

Item Part No. Description

1 HMJKTMR01 Jacket Right Side Panel

2 HMJKTMB01 Jacket Back Panel

3 HMJKTML01 Jacket Left Side Panel

4 HMJKTMT01 Jacket Top Panel

5 HMJKTMF01 Jacket Front Panel

6 HMJKTMFL01 Control Cover Panel

7 HMCOV05 Burner Hood Panel

8 MDRKIT01 Domestic NTC Sensor

9 MDRKIT02 Air Switch

10 PSRKIT19 Transformer

11 MDRKIT03 Control Module

12 MDRKIT04 Controle Module Display

13 MDRKIT05 Primary NTC Sensor

14 MDRKIT06 Control Module Display Cover

15 MDRKIT07 Low Water Cut Off (not shown)

16 MDRKIT11 Flue Hood Gasket

Page 61

Replacement Parts

Fig. 20 : Burner Assembly Replacement Parts

Item Part No. Description

1 PSRKIT13

Blower with Gasket

2 PSRKIT01 Gas Valve

3 ------- Venturi

4 PGRKIT15 Gas Valve Rectifier Plug

5 MDRKIT08 Igniter with Gasket

6 PSRKIT14 Ignition Cable

7 MDRKIT09 Burner Plate Insulation & Gasket

8 PSRKIT37 Burner Head

9 MDRKIT10 Sight Glass Assembly

Page 62

Head Loss (Ft.)

Flow Rate (gpm)

Product Specifications

22"

29"

59”

11.5"

14"

21"

6.5"

.5"

Fig. 21: Side View

1. Primary supply, ø 1” NPT

2. Primary drain valve connection, ø 1/2” NPT

3. Domestic temperature/pressure relief valve (150 psi), ø 3/4” NPT

5. Domestic cold water inlet, ø 3/4” NPT

6. Domestic hot water outlet, ø 3/4” NPT

7. Primary return & air vent, ø 1” NPT

8. Gas connection, 3/4” NPT

4. Primary pressure relief valve (30 psi), ø 3/4” NPT

Note: Minimum allowable flow rate at full input: PG-150- & PG PLUS-150 7 gpm PG-199- & PG PLUS-199 10 gpm

Page 63

Product Specifications

Domestic Primary 10 Min. Continuous

Model Capacity Capacity Peak Flow 1st Hour Flow @ 70ºF

Gals. Gals. Gals. Rating gph Rise gph

PG-150 & PG PLUS-150 20 22 70 230 190

PG-199 & PG PLUS-199 17 20 80 290 250

Capacity Gals.

Capacity BTU/Hr. Rating BTU/Hr. Weight

Table 4 : Product Data

Model Fuel Input BTU/hr AFUE % DOE Heating Net IBR Shipping

Note 1 Note 2 Note 3 Note 4 Lbs.

PG-150 Natural & Propane 150,000 84 126,000 107,500 345

PG-199 Natural & Propane 199,000 84 167,500 142,500 345

PG PLUS-199 (Note 5) Natural & Propane 199,000 86 171,500 145,500 345

PG PLUS-150 (Note 5) Natural & Propane 150,000 85 127,500 108,500 345

approximately 2% for every 1,000 feet of altitude. No alterations to the appliance is required.

Note 1: Input ratings are shown for sea level applications. The appliance automatically derates the input at

Note 2: Based on the given AFUE the MODULATING DELTA PG PLUS Models meet the energy efficiency

Note 3: The heating capacity is based on the test requirements of the U.S. Department of Energy.

guidelines established by Energy Star.

for the standard radiation requirements for a building load.

Note 4: The IBR rating is based on a piping and pick up allowance of 1.15. This allowance should be sufficient

Note 5: The PG PLUS Models must not vent as a Category I (Chimney Vent) appliance.

Page 64

Additional Quality Heating Products Available

from Triangle Tube

Phase III Indirect Fired Water Heaters

Prestige Condensing Wall Mounted Boiler

- Exclusive Tank-in-Tank design

- Stainless steel construction

- Available in 8 sizes and 2 models

- Limited LIFETIME residential warranty

- 15 year limited commercial warranty

- Self cleaning/self descaling design

- 2” polyurethane insulation

Maxi-flo Pool and Spa Heat Exchangers

- 96% Efficiency (Low temperature application)

- Fully modulating

- Natural gas or propane

- Stainless Steel Construction

- Direct vent with standard schedule 40 PVC

- Outdoor Reset

- Low Nox

- Construction of high quality corrosion resistant stainless steel (AISI 316) Also available in T

- Specially designed built-in flow restrictor to assure maximum heat exchange Compact and light weight

vailable in 5 sizes that can accommodate any size

pool or spa

itanium

Freeway Center - 1 Triangle Lane - Blackwood, NJ 08012 Tel: (856) 228 8881 - Fax: (856) 228 3584 http://www.triangle tube.com E-mail: Info@triangle tube.com

Member of

Group

TriangleTube Delta Installation And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual