Delta PG PLUS-25 User Manual

Warranty Registration Card must be filled out by the customer and mailed within thirty (30) days of installa­tion in order to gain warranty coverage.
When receiving the Delta Performance unit, 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.
WARNING
- Input from 100,000 to 199,000 Btu/hr -
2005-7 PG PLUS Manual 1/2005
If the information in this manual is not followed exactly, a fire or explosion may result causing pro p e r ty damage, personal injury or d e a t h .
FOR YOUR SAFETY
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 s u p p l i e r ’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.
PG PLUS-25/30/35/40 & 45
Gas Fired
Combination Heaters
Category IV Vented Appliance
Table of Contents
i
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
Boiler Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Flooring and Foundation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Residential Garage Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SECTION II - COMBUSTION AIR AND VENTING
Combustion Air Contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Combustion Air Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Outside Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Air Openings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Methods of Accessing Combustion Air into a Space . . . . . . . . . . . . . . . . . . 8-10
Vent System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Removal of an Existing Boiler from a Common Vent System . . . . . . . . . . 11
SECTION III - UNIT PREPARATION
Handling Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Hydrostatic Pressure Test
Hydrostatic Test Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Hydrostatic Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13
Completion of Hydrostatic Test and Draining . . . . . . . . . . . . . . . . . 13
SECTION IV - DOMESTIC PIPING
General Piping Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Domestic Supply Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Water Hammer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Temperature / Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15
Thermostatic Mixing Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table of Contents
ii
U-Tube Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-16
Domestic Drain Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Multiple Units Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Storage Tank Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
TR/Smart Series Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Domestic Piping Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-19
SECTION V - PRIMARY PIPING
General Piping Requirements
Low Water Cut-off Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Backflow Preventer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Primary System Piping Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Expansion Tank and Makeup Water
Diaphragm (Bladder) Expansion Tank. . . . . . . . . . . . . . . . . . . . . . . 20
Closed-Type (Standard) Expansion Tank . . . . . . . . . . . . . . . . . . . . . 20
Circulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Closet (Zero Clearance) Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Sizing Primary Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System Piping - Zone Circulators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System Piping - Zone Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System Piping - Radiant Heating with Mixing Valves. . . . . . . . . . . . . . . . . 21-22
System Piping - Multiple Units Installation . . . . . . . . . . . . . . . . . . . . . . . . . 22
Primary Piping Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-26
SECTION VI - VENT / COMBUSTION AIR INSTALLATION
General Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Category IV Vent Termination Guideline. . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Category IV Vent Termination Clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Multiple Vent Terminations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Location the Combustion Air Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Venting Option - Non-Direct Vent / Vertical . . . . . . . . . . . . . . . . . . . . . . . . 29
Venting Option - Direct Vent / Vertical . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Venting Option - Non-Direct Vent / Horizontal . . . . . . . . . . . . . . . . . . . . . . 30
Venting Option - Direct Vent / Horizontal . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Horizontal Wall Thimble Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Excessive Horizontal Vent Runs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Vent Appliance Adapters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Vent Condensate Tee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Condensate Drain Tube. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Determining Piping Lengths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-33
Venting Option Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-36
iii
Table of Contents
SECTION VII - GAS PIPING
Gas Supply Piping Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Natural Gas
Pipe Sizing -Natural Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Natural Gas Supply Pressure Requirements . . . . . . . . . . . . . . . . . . . 38
Propane Gas
Pipe Sizing - Propane Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Propane Gas Supply Pressure Requirements . . . . . . . . . . . . . . . . . . 39
SECTION VIII - INTERNAL WIRING
General Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Internal Control Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-42
SECTION IX - EXTERNAL WIRING
Installation Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Line Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Outdoor Temperature Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
External Control Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-46
SECTION X - START-UP PREPARATION
Check System and Domestic Water Chemistry
Water pH Level 6.0 to 8.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Water Hardness Less Than 7 Grains. . . . . . . . . . . . . . . . . . . . . . . . . 47
Chloride Concentration Less Than 80mg/L . . . . . . . . . . . . . . . . . . . 47
Chlorinated Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Flush Primary and Domestic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Check and Test Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Use of Antifreeze in the Primary System . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Filling the Inner (Domestic) Tank and System . . . . . . . . . . . . . . . . . . . . . . 48
Filling the Outer (Primary) Tank and System . . . . . . . . . . . . . . . . . . . . . . . 48-49
Check Low Water Cut-off Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Check for Gas Leaks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Verify Correct Pressure Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Verify Correct Air Shutter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Check Thermostat Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
iv
Table of Contents
SECTION XI - START-UP PROCEDURES
Final Checks Before Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
PERFORMANCE PLUS Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
If PERFORMANCE PLUS Does Not Start Correctly . . . . . . . . . . . . . . . . . 51
Check the PERFORMANCE PLUS and System . . . . . . . . . . . . . . . . . . . . . 51
Start-Up / Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-53
SECTION XII - TEMPERATURE LIMITS
Setting Primary Thermostat Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Adjustment of Secondary Thermostat Limit . . . . . . . . . . . . . . . . . . . . . . . . 54
Setting the Thermostatic Mixing Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
SECTION XIII - CHECK-OUT PROCEDURES
Check-out Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
SECTION XIV - INSTALLATION RECORD
Installation Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
SECTIONS XV - MAINTENANCE SCHEDULE
Service Technician - General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Owner Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
SECTION XVI - MAINTENANCE PROCEDURES
Maintenance Procedures
Reported Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Check Surrounding Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Inspect Burner Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Check System (Primary and Domestic) Piping . . . . . . . . . . . . . . . . 59
Check Combustion/Ventilation Air Operating . . . . . . . . . . . . . . . . . 60
Inspect Vent System and Combustion Air Piping . . . . . . . . . . . . . . 60
Check Primary System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Check Domestic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Check Expansion Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Check Boiler Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Check Temperature / Pressure Relief Valve . . . . . . . . . . . . . . . . . . . 61
v
Table of Contents
Inspection of Ignition Electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Check Ignition Wiring and Ground Wiring . . . . . . . . . . . . . . . . . . . 61
Check Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Check Thermostat Limit Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Perform Start-Up and Checkout Procedure . . . . . . . . . . . . . . . . . . . 61
Check Burner Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Check Flame Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Check Combustion Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Review with Owner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
SECTION XVII - REPLACEMENT PARTS
Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63-67
PRODUCT SPECIFICATIONS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-69
Product & Safety Information
1
Indicates the presence of a hazardous situation which, if ignored, will result in death, serious injury or substantial property damage.
Indicates a potentially hazardous situ­ation which, if ignored, can result in death, serious injury or s u b s t a n t i a l property damage.
Indicates a potentially hazardous situ­ation which, if ignored, may result in minor injury or property damage.
Indicates special instructions on instal­lation, operation or m a i n t e n a n c e , which are important to equipment but not related to personal injury hazards.
Indicates recommendations made by Triangle Tube for the installers which will help to ensure optimum operation and longevity of the equipment
BEST PRACTICES
CAUTION
WARNING
DANGER
The following terms are used throughout this manual to bring attention to the presence of potential hazards or to important information concerning the product.
Triangle Tube reserves the right to modify the technical specifications and components of its products without prior notice.
Product & Safety Information
2
Bacteria can develop in the domestic w a t e r system if certain minimum water t e m p e r a t u r es are not maintained.
Water temperature over 125ºF can cause s e v e re burns instantly or death fro m 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 this description or codes require spe­cific water temperatures at hot water faucet, we recommend:
a) ensure the factory installed thermosta-
tic mixing valve is working properly.
b)to set the thermostatic mixing valve
for the lowest temperature which sat­isfies your hot water need.
.
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.
CAUTION
DANGER
WARNING
3
Product & Safety Information
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.
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 b u i l d i n g .
- Immediately call your gas supplier f r om 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.
Should overheating occur or the gas supply fails to shut off, turn OFF the manual gas control valve external to the appliance.
To prevent damage to inner t a n k , installer must:
• Fill inner tank prior to outer tank during start-up.
• Relieve primary system pressure below 15 psig prior to draining inner tank.
CAUTION
WARNING
DANGER
DANGER
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.
Please reference the unit’s model num­ber and the serial number from the rat­ing label when inquiring about service or troubleshooting.
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.
NOTICEWARNING
4
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 AGA rating of 100,000 Btu/hr for PG-25 and 200,000 Btu/hr for PG­30/35/40/45.
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 PER­FORMANCE PLUS are:
- Chloride, less than 80 mg/l.
- pH, 6.0 - 8.0.
Any water conditioning system must be installed and maintained in accordance with manufacturer’s specifications.
180º Maximum operating temperature
- primary side.
120º Maximum outlet/mixed tempera­ture - domestic side.
CODE RESTRICTIONS
Single wall heat exchanger in the PERFOR­MANCE PLUS 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 r e q u i r e m e n t s .
1 . The heat transfer medium is potable
water or contains only substances which are recognized as safe by the U.S. Food and Drug A d m i n i s t r a t i o n .
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.
O r , per Uniform Plumbing Code paragraph L3.3 as follows:
Other heat exchanger designs may be permitted where approved by the Administrative A u t h o r i t y.
NOTICE
Pre-Installation Items
5
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 NFPA54/ ANSI Z332.1 - Latest edition.
National Electric Code ANSI/NFPA 70.
For installations in Canada -“Installation Code for Gas Burning Equipment” C G A / B 1 4 9 .
Determining Product Location
Before locating the PERFORMANCE PLUS check for convenient locations to:
- Domestic water supply piping
- Heating system piping
- Venting
- Gas supply piping
- Electrical service
Ensure the area chosen for the installation of the PERFORMANCE PLUS is free of any combustible materials, gasoline and other flammable liquids.
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 PERFORMANCE PLUS and its controls are protected from dripping or spray­ing water during normal operation or service.
The PERFORMANCE PLUS 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 unit 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 unit. The drain pan must not restrict the flow of combustion air to the unit.
Boiler Replacement
If the PERFORMANCE PLUS 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.
Vent condition and sizing.
Recommended Clearances
The PERFORMANCE PLUS 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.
WARNING
Pre-Installation Items
To provide serviceability to the unit it is recommended 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.
When installing the PERFORMANCE PLUS in a confined space, sufficient air must be provided for proper combustion and venting and to allow under normal operating condition pro p e r a i r f l o w around the product to maintain ambient temperatures within safe limits to com­ply with the National Fuel Gas Code NFPA 54 - latest edition.
Flooring and Foundation
The PERFORMANCE PLUS is approved for installation on combustible floors, but never on carpeting.
Do not install the PERFORMANCE PLUS on carpeting even with a metal 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 unit.
- 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 PERFORMANCE PLUS in a residential garage the following special pre­cautions per N F PA 54/ANSI Z223.1 must be t a k e n :
- Mount the unit 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 unit in a matter so it cannot be damaged by a moving v e h i c l e .
WARNING
WARNING
BEST PRACTICES
6
Combustion Air and Venting
7
SECTION II - Combustion Air and Venting
Combustion Air Contamination
If the PERFORMANCE PLUS combus­tion air inlet is located in any area likely to cause or contain contamination, or if products, which would contaminate the air cannot be removed, the combustion air must be repiped and terminated to an outside location. Contaminated combus­tion air will damage the unit and its b u r n e r system, resulting in possible severe personal injury, death or substan­tial property damage.
Do not operate a PERFORMANCE PLUS if its combustion air inlet is taken inside in a laundry room or pool facility. These areas will always contain haz­ardous contaminants.
Pool chemicals, laundry products, com­mon household cleaners and hobby products often contain fluorine or chlo­rine compounds. When these chemicals pass through the burner and vent sys­tem, they can form strong acids. These acids can create corrosion of the outer tank, burner components and vent sys­tem, causing serious damage and pre­senting a possible threat of flue gas spillage or water leakage into the sur­rounding area.
Please read the information listed below. If contaminating chemicals are located near the location of the combustion air inlet, the installer should pipe the com­bustion air inlet to an outside area per SECTION VI of this installation manual.
Potential contaminating products
- Spray cans containing chloro/fluorocar­bons
- Permanent Wave Solutions
- Chlorinated wax
- Chlorine - based swimming pool chem­icals / cleaners
- Calcium Chloride used for thawing ice
- Sodium Chloride used for water soften­ing
- Refrigerant leaks
- Paint or varnish removers
- Hydrochloric acid / muriatic acid
- Cements and glues
- Antistatic fabric softeners used in clothes dryers
- Chlorine-type bleaches, detergents, and cleaning solvents found in household laundry rooms
- Adhesives used to fasten building prod­ucts and other similar products
Areas likely to contain these products
- Dry cleaning / laundry areas and estab­lishments
- Beauty salons
- Metal fabrication shops
- Swimming pools and health spas
- Refrigeration Repair shops
- Photo processing plants
- Auto body shops
- Plastic manufacturing plants
- Furniture refinishing areas and estab­lishments
- New building construction
- Remodeling areas
- Garages with workshops
WARNING
WARNING
8
Combustion Air and Venting
Combustion Air Requirements
The PERFORMANCE PLUS can use inside air if no contaminants are present in the area of installation. If contaminants are likely to be present in the area of installation, outside air must be piped directly to the unit as referenced in Section VI Venting and Combustion Air Piping.
In order to avoid the potential of indoor contaminates when venting the appli­ance, it is recommended to pipe combus­tion air directly from the outdoors to the unit as referenced in Section VI Venting and Combustion Air Piping.
Outside Combustion Air
Combustion air can be ducted directly from the outside to the air inlet fitting of the PERFOR­MANCE PLUS using the following materials:
- PVC
- Galvanized metal vent
- Flexible metal vent
All seams and joints must be sealed with sealant or mechanical fasteners. Do not use tape as it is not considered a sealing material.
Air Openings
Air openings to the PERFORMANCE PLUS are always required even if the combustion air is obtained indoors or outdoors. These air open­ings provide ventilation to prevent overheating of the PERFORMANCE PLUS and its control as well as providing combustion air.
The air openings must be sized to handle the re q u i r ements of all appliances and air movers (exhaust fans, etc.) contained in the same space using the same air s u p p l y.
Methods of Accessing Combustion A i r Into A S p a c e
Indoor Combustion Air
The methods listed in this section for accessing Indoor Combustion A i r assume that the infiltration rate is ade­quate and not less than .40 ACH. For infiltration rates less than .40 ACH, ref­erence the NFPA 54 National Fuel Gas Code for additional guidance.
Opening Size and Location
Openings used to connect indoor spaces shall be sized and located in accordance with the following, see Fig.1:
NOTICE
BEST PRACTICE
Equipment Located in Confined Spaces; All Air from inside the building.
Fig. 1:
9
Combustion Air and Venting
- Combining spaces on the same story. Each opening shall have a minimum free area of 1 sq. in./1000 Btu/hr of the total input rating of all gas utilization equipment in the space, but not less than 100 sq. inches. One opening shall com­mence within 12 inches of the top, and one opening shall commence within 12 inches of the bottom of the enclosure.
- Combining spaces in different stories. The volumes of spaces in different sto­ries shall be considered as communicat­ing spaces where such spaces are con­nected by one or more openings in doors or floors having a total minimum free area of 2 sq. in./1000 Btu/hr of total input rating of all gas utilization equipment.
Outdoor Combustion Air
Isolating the combustion appliance room from the rest of the building and bring­ing in uncontaminated outside air for combustion and ventilation is always preferred.
Openings used to supply combustion and ven­tilation air shall be sized and located in accor­dance with the following:
One Permanent Opening Method.
One permanent opening, commencing within 12 in. of the top of the enclosure, shall be provided. The equipment shall have clearances of at least 1 inch from the sides and back and 6 in. from the front of the appliance. The opening shall direct­ly communicate with the outdoors or shall com­municate through a vertical or horizontal duct to the outdoors or spaces that freely communicate with the outdoors and shall have a minimum free area of the following:
- 1sq. in./3000 Btu/hr of the total input rating of all equipment located in the enclosures, and
- Not less than the sum of the areas of all vent connectors in the space. See Fig. 2.
Two Permanent Openings Method.
Two permanent openings, one commencing within 12 in. of the top and one commencing within 12 in. of the bottom of the enclosure, shall be provided. The openings shall commu­nicate directly, or by ducts, with the outdoors or spaces that freely communicate with the out­doors, as follows:
- Where directly communicating with the outdoors or where communication to the outdoors is through vertical ducts, each opening shall have a minimum free area of 1 sq. in./4000 Btu/hr of total input rat­ing of all equipment in the enclosure. See Fig. 3 page 10.
- Where communicating with the out­doors is through horizontal ducts, each opening shall have a minimum free area of not less than 1 sq.in./2000 Btu/hr of total input rating of all equipment in the enclosure. See Fig.4 page 10.
BEST PRACTICE
Equipment Located in Confined Spaces; One Permanent Air Inlet
Fig. 2:
10
Combustion Air and Venting
Combination of Indoor and Outdoor Combustion Air
Indoor Openings: Where used, openings con­necting the interior spaces shall comply with the Indoor Combustion Air section on page 8.
Outdoor Opening(s) Location. Outdoor open­ing(s) shall be located in accordance with the Outdoor Combustion Air section.
Outdoor Opening(s) Size. Outdoor opening(s) shall be calculated in accordance with the fol­l o w i n g :
- The ratio of the interior spaces shall be the available volume of all communi­cating spaces divided by the required volume.
- The outdoor size reduction factor shall be 1 minus the ratio of interior spaces.
- The minimum size of outdoor open­ing(s) calculated in accordance with the above outdoor air section multiplied by the reduction factor. The minimum dimension of air openings shall not be less than 3 in.
Vent System
The PERFORMANCE PLUS is designed to vent as a Category IV appliance, which requires a special vent system.
Category IV Venting is described as a vent system that has a positive static pressure and a flue temperature that may cause excessive condensate within the vent.
Do not install the PERFORMANCE PLUS into a common vent with other g a s appliances.. This may cause flue gas spillage or appliance malfunction, re s u l t ­ing in possible severe personal injury, death or substantial pro p e r ty damage.
DANGER
Equipment Located in Confined Spaces; All Air from Outdoors Through Ventilated Attic
Fig. 3:
Equipment Located in Confined Spaces; All Air from Outdoors
Fig. 4:
11
Combustion Air and Venting
Removal of an Existing Boiler f rom a Common Vent System
F o r installations in which the PERFOR­MANCE PLUS is replacing an existing b o i l e r / hot water h e a t e r system, which was connected to a common vent system with other appliances, the following steps shall be conducted with each re m a i n i n g appliance connected to the common vent­ing system:
1. Any unused openings in the common venting system must be sealed.
2. A visual inspection of the venting sys­tem must be conducted for proper siz­ing and horizontal pitch. The inspec­tion should ensure no blockage or restriction is within the vent system, and there is no leakage, corrosion or other items, which could cause an unsafe condition.
3. To adequately test the venting system, close all exterior doors and windows and all doors between the area contain­ing the remaining appliances connected to the common vent system and other areas of the building. Turn on any clothes dryers and any other gas appli­ance not connected to the common vent system. Turn on all exhaust fans, i.e. range hoods and bathroom exhaust fans, preferably at maximum speed. Close any fireplace dampers.
4. Place in operation the first appliance being inspected that is connected to the common vent system. The remaining appliances should not be in operation. Follow the appliance’s lighting instruc­tions and adjust the thermostat to allow the appliance to operate continuously.
5. Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Spillage can be detected using the flame of a match or candle or with smoke from a cigarette.
6. Once it has been determined that each remaining appliance connected to the common vent system is properly vent­ed, return doors, windows, exhaust fans, fireplace dampers and any operat­ing gas appliance to their previous con­dition.
Should any improper operation of the common venting system be detected in the outline test, the condition should be corrected so the vent system conforms with the National Fuel Gas Code, NFPA 54/ ANSI Z223.1 - latest edition. Canadian installations must conform with B149.1 or 149.2 Installation Code.
BEST PRACTICES
12
Unit Preparation
SECTION III - Unit Preparation
Handling Instructions
The PERFORMANCE PLUS 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 shipping carton to remove the wood shipment insert.
b. Lift the shipping carton over the unit to
remove. If ceiling height is limited the carton maybe cut open using care not to damage the exterior jacket of the unit.
c. Remove the front burner hood to pre-
vent damage prior to lifting the unit from the shipping pallet.
When lifting or moving the unit do not use the burner or its components as a means of a handle. Hand-truck the unit from the rear only.
d. Discard all packing materials.
Hydrostatic Pressure Test
Prior to permanently connecting water, gas supply or electrical supply, perform a pressure hydrostatic test of the outer tank to ensure all piping connections were not damaged during shipment.
Hydrostatic Test Preparation
1. Mount the circulator on the supply pipe as shown in Figure 11 page 23.
2. Temporarily plug the primary return con­nections as shown in Figure 11 using a 1” NPT pipe plug. Use pipe dope sparingly to allow removal of the plugs upon comple­tion of the test.
3. On the outlet flange of the circulator pipe install a 1” NPT nipple and shut-off valve. Use pipe dope sparingly to allow removal of the fittings upon completion of the test.
To avoid getting water onto the unit and/or surrounding area additional pip­ing from the shut-off to a catch bucket or drain may be required.
4. Connect a hose to the primary circuit drain valve located per Figure 45 page 68, Item 2 and connect the other end to a fresh water supply. Ensure the hose can be used as a drain hose upon completion of the test.
Hydrostatic Test Procedures
1. Open the shut-off valve installed on the outlet flange of the circulator.
2. Open the fresh water supply valve and then open slowly the primary circuit drain valve to fill the outer tank with water.
3. When the water within the outer tank reaches the shut-off on the primary supply, close the primary circuit drain valve.
4. Close the shut-off valve, on the top of the c i r c u l a t o r .
5. Slowly reopen the primary circuit drain valve until the test pressure on the temper­ature / pressure gauge reaches 10 psig maximum. Close the primary circuit drain valve.
To prevent damage to the inner tank the test pressure must not exceed 10 psig.
6. Allow the test pressure to remain for 10 minutes.
CAUTION
BEST PRACTICES
WARNING
Unit Preparation
13
Do not leave the unit unattended while p r essurized. A cold water fill could expand and cause excessive pre s s u re , resulting in severe personal injury, death or substantial property damage.
7. Ensure constant gauge pressure has been maintained throughout the 10 minute test. Check for leaks at all fitting joints. Repair if found.
Leaks must be re p a i red immediately when detected. Failure to repair leaks can damage the unit, resulting in sub­stantial property damage.
8. Check continuity using a voltmeter across the terminals of the LWCO device. The contacts on the LWCO should be closed. See item 6 in Figure 40 page 64 for loca­tion of the LWCO.
Completion of Hydrostatic Test and Draining
1. Disconnect the fill hose from the fresh water source and direct the hose to a suit­able place of drainage.
2. Open the primary drain valve and complete­ly drain the unit. To aid in draining open the s h u t - o f f valve on the primary supply.
3. Remove the hose from the primary drain valve when draining is complete.
4. Remove the plugs, nipple, shut-off valve and any other piping unless they will remain for use in the system piping.
WARNING
WARNING
Domestic Piping
SECTION IV - 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 PERFORMANCE PLUS from the sys­tem piping.
Domestic Supply Pressure
For applications in which the domestic sup­ply pressure exceeds 70 psig it is recom­mended to install a pressure reducing valve on the cold water supply.
Maintaining the cold water supply at or below 70 psig will prevent normal thermal expansion from repeatedly forcing the T&P relief valve open.
Thermal Expansion
If the cold water supply contains a backflow p r e v e n t e r , check valve and / or a pressure reducing valve, the installer must install a domestic thermal expansion tank on the cold water supply. (See Fig. 6 page 17)
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.
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 unit.
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 PERFORMANCE PLUS has a factory installed Temperature / Pressure Relief valve. Ensure the rating of the T&P relief valve is correctly sized as follows per AGA:
CAUTION
14
Model AGA Rating
PG PLUS-25 100,000 Btu/hr
PG PLUS-30 200,000 Btu/hr
PG PLUS-35 200,000 Btu/hr
PG PLUS-40 200,000 Btu/hr
PG PLUS-45 200,000 Btu/hr
Domestic Piping
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.
Failure to properly direct the discharge piping of the T&P relief valve may result in flooding of the area adjacent to the unit 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.
The discharge piping is subject to f r e e z i n g .
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 PERFORMANCE PLUS contains a facto­ry installed 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.
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.
U-Tube Assembly
The PERFORMANCE PLUS 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:
1. Disconnect the cold inlet adapter/union from the thermostatic mixing valve.
2. Using needle-nose pliers remove the plastic check valve assembly from the adapter.
DANGER
WARNING
CAUTION
15
Domestic Piping
3. Solder the U-Tube Assembly onto the adapter. (See Fig. 5)
4. Once the adapter has suff i c i e n t l y cooled, re-insert the check valve assem­bly making sure of orientation and reconnect onto the mixing valve.
If the installation of the PERFORMANCE PLUS requires domestic hot water for a commercial dishwasher, the installer may insert a tee connection between the unit and the mixing valve to provide 140ºF domes­tic hot water. The installer must reference local plumbing codes to ensure if this type of application is permissible.
The thermostatic mixing valve MUST be installed and utilized on the PERFOR­MANCE PLUS. Removal of the thermo­static mixing valve will result in severe personal injury or death.
The manual valve on the U-Tube assem­bly must remain in the full open position for proper operation of the thermostatic mixing valve.
Domestic Drain Valve
- The installer must install a drain valve and drain leg as shown in Fig. 6 page 17 or Fig. 7 page 18.
- The drain valve should be positioned close to the floor to aid in the siphon action required to drain the inner tank.
Multiple Units Installation
For applications using multiple units the domestic piping should be piped using a bal­anced manifold arrangement.
The installer should remove the thermostatic mixing valve from the units 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. 8, page 18 for piping diagram.
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. 9 page 19) in the domestic piping. The installer must:
1. Relocate the thermostatic mixing valve from the PERFORMANCE PLUS to the outlet of the storage tank.
2. Provide recirculation from the storage tank back to the PERFORMANCE PLUS using a bronze type circulator. Maximum recommended flow rate is 5 to 10 gpm.
CAUTION
DANGER
16
Fig. 5: Mixing Valve Assembly
17
Domestic Piping
TR/SMART Series Application
For applications requiring large volumes of domestic hot water over an extended period, the installer may include a Triangle Tu b e TR/SMART Indirect Water Heater in conjunc­tion with the PERFORMANCE PLUS. (See Fig. 10 page 19)
The domestic system recirculation, if used, is directed to the TR/SMART Series Tank. The circulator should be controlled by an aquastat.
The primary piping to the TR/SMART Series tank must comply with the piping methods details in SECTION V - Primary Piping or with other recognized piping methods.
Additional information regarding domestic and primary piping can be found in the TR/SMART Installation Manual.
Fig. 6: PERFORMANCE PLUS
Without Recirculation
Note: All shut off valves shown in
this figure must be shut when siphon draining the PERFORMANCE PLUS.
Domestic Piping Diagrams
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*
* Optional devices may be required by local Codes
18
Domestic Piping
Fig. 7: PERFORMANCE PLUS
With Recirculation
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
7. Circulator (controlled by aquastat)
8. Domestic drain valve
9. Vacuum breaker*
Note: All shut off valves shown in this figure must be closed when siphon draining the PERFORMANCE PLUS
* Optional devices may be required by local Codes
Fig. 8: Multiple Units Installation With Recirculation
19
Fig. 10: PERFORMANCE PLUS with TR/SMART Indirect Water Heater
Fig. 9 : PERFORMANCE PLUS with Storage Tank
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
7. Circulator (controlled by aquastat)
8. Domestic drain valve
9. Vacuum breaker*
Domestic Piping
* Optional devices may be required by local Codes
20
Primary Piping
SECTION V - Primary Piping
General Piping Requirements
Low Water Cutoff Device
- The PERFORMANCE PLUS 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.
Backflow Preventer
- Use a backflow preventer valve in the make-up water supply to the unit as required by local codes.
Primary System Piping Applications
All piping applications shown in this instal­lation manual utilize a primary/ secondary piping arrangement. This method is re c ­ommended as a means to provide priority to the production of domestic hot water. F o r o t h e r piping arrangements, consult the Engineering Department at Triangle Tu b e o r consult other a p p r o v e d / r e c o g n i z e d design arrangements.
On piping applications utilizing a single zone or o t h e r recognized piping design arrangements it is recommended the i n s t a l l e r uses flow/check valves with weighted seats at or n e a r the appliance to p r event gravity circ u l a t i o n .
To prevent potential outer tank failures the p r i m a r y system piping must be a “closed” loop system to avoid any oxygen contami­nation of the boiler w a t e r.
Expansion Tank and Makeup Water
Ensure the expansion tank is properly sized for the outer tank volume (20 gallons) and the system volume and temperature.
Undersized expansion tanks will cause sys­tem water to be lost through the pre s s u r e relief valve and cause additional makeup w a t e r to be added to the system. Eventual p r i m a r y tank failure can result due to this excessive makeup water a d d i t i o n .
The expansion tank must be located as shown in Figure 11, 11A or 11B page 23 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.
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.
CAUTION
BEST PRACTICE
BEST PRACTICE
21
Primary Piping
For proper operation of the expansion tank and system, remove the factory installed automatic air vent from the PERFOR­MANCE PLUS and plug the connection. (See Item 10, Fig. 46 page 68)
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 PERFORMANCE PLUS 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.
Closet (Zero Clearance) Applications
For applications in closets or zero clear­ances, the installer may use the upper prima­ry connection shown as Item 4 on page 70 as a primary return connection. The air elimi­nation, expansion tank and make-up water system should then be piped directly into the primary loop of the space heating prior to the system circulator.
Sizing Primary Piping
See Figure 12 through 15, pages 24 - 25, for recommended piping arrangements based on various applications. In all dia­grams, the space heating system is isolated from the PERFORMANCE PLUS 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 PERFORMANCE PLUS to the system piping as shown in Fig. 12 page 24 when zoning with zone circulators. The circulator supplied with the PERFOR­MANCE PLUS 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. 34, page 45.
To ensure adequate flow rate through the PERFORMANCE PLUS, maintain a minimum 1 inch diameter on the system piping connecting the unit to and from the primary / secondary connection.
System Piping - Zone Valves
Connect the PERFORMANCE PLUS to the system piping as shown in Fig. 13 page 24 when zoning with zone valves. The prima­ry / secondary piping ensures the priority is given to the production of domestic hot w a t e r .
To control the system circulator refer to Fig. 33, page 44.
To ensure adequate flow rate through the PERFORMANCE PLUS, maintain a minimum 1 inch diameter on the system piping connecting the unit to and from the primary / secondary connection.
CAUTION
22
Primary Piping
System Piping - Radiant Heating with Mixing Va l v e
Connect the PERFORMANCE PLUS to the system piping as shown with a radiant sys­tem using a thermostatic mixing valve as shown in Fig. 14 page 25. The primary / sec­ondary piping ensures sufficient return tem­perature to the PERFORMANCE PLUS.
If the radiant system tubing contains no oxygen barrier, a stainless steel heat e x c h a n g e r must be used. Failure to install a heat exchanger could lead to premature failure of the outer tank and void any warranty claim.
Radiant heating system piping should include a means of regulating the boiler return water. The return water tempera­ture to the unit should be maintained at 130ºF or higher. Failure to prevent low return water temperature to the unit could cause premature failure of the unit and it’s burner system resulting in severe
personal injury, death or s u b s t a n t i a l property damage.
Size the system piping and circulator to pro­vide the flow needed for the radiant system.
To control the zone circulators reference Figure 34, page 45.
To ensure adequate flow rate through the PERFORMANCE PLUS, maintain a minimum 1 inch diameter on the system piping connecting the unit to and from the primary / secondary connection.
System Piping - Multiple Units Installation
Use a balance manifold system as the pri­mary / secondary connection to the space heating piping as shown in Fig. 16 page 26.
Refer to Fig. 11 page 23 to install air elim­ination and expansion tank.
For the space heating piping refer to the applications mentioned in this manual or use recognized design methods.
WARNING
23
Primary Piping
Near Appliance Piping
1. Appliance Circulator
2. Shut Off valve
3. Expansion tank
4. Auto fill valve
5. Tank fitting
6. Automatic air vent
7. Air Separator
8. Plug (by others)
Fig. 11 : Near Appliance Primary
Piping with a Diaphragm Type Expansion Tank
Fig. 11A : Near Appliance Primary
Piping with Closed ­Type Expansion Tank
Fig. 11B : Near Appliance Primary Piping
with Diaphragm - Type Expansion Tank (Alternate Circulator Location)
24
Primary Piping
Fig. 12: Primary piping - Zoning with Circulators
Fig. 13: Primary Piping - Zoning with Zone Valves
1. Appliance circulator
2. Shut-off valves
3. Flow check valve
4. Zone valve
5. System purge valve
6. System circulator
Note: See page 23 for near appliance piping.
Install balancing valves to adjust flow to distribute heat to all zones
Size primary manifold for total flow of all circula­tors
Size each circulator to individual circuit require­ments
Install balancing valves to adjust flow to distribute heat to all zones
25
Primary Piping
Fig. 14: Primary Piping - Low Temperature Radiant System
Note: Adjust system temperature
valve to establish maximum sup­ply/return temperature differen­tial of 30ºF and a minimum 130ºF return water temperature to the PERFORMANCE PLUS
1. Circulator
2. Shut Off valves
3. Flow check valve
4. Zone valve
5. Purge valve
6. System circulator
7. 3-way mixing valve
8. System Temperature valve (See note above)
Fig. 15: Primary Piping - Multi Temperature System
26
Primary Piping
27
Venting and Combustion Air Installation
SECTION VI - Venting and Combustion Air Installation
General Requirements
- Installation must comply with local requirements and with the National Fuel Gas Code, NFPA 54/ ANSI Z223.1 for U.S. installations and CSA B149.1 or B149.2 for Canadian installations.
- The PERFORMANCE PLUS requires a special vent system designed for pres­surized venting and is rated as ANSI Z21.13 Category IV (pressurized vent system, likely to condense within the vent system).
- The PERFORMANCE PLUS may be direct vented with outside combustion air or non-direct vented using room air.
- The PERFORMANCE PLUS is approved for the following vent manu­facturers:
• Heat Fab (Saf-T-Vent®)
• ProTech Systems (FasNSeal®)
• Flex-L (StaR-34)
• Z-Flex (Z-Vent III™)
DO NOT mix components from different systems. The vent system could fail or improperly seal, causing leakage of flue products into the building.
Category IV Vent Termination - Guidelines
Locate the vent termination for direct or non­direct vent applications using the following guidelines:
1. The total equivalent length of the vent should not exceed 100 feet as given in Table 2, page 33.
2. The installer must consider the following when determining the location of the vent termination:
- Locate the vent termination where flue
vapors will not damage surrounding shrubs, plants or air conditioning equip­ment or be objectionable to the home­owner.
- The flue products will form a notice-
able plume as they condense in colder air. Avoid terminating the vent in areas where the plume could obstruct win­dow views.
- Prevailing winds could cause freezing
of flue condensation and a buildup of water / ice on surrounding plants, build­ing surfaces or combustion air inlet.
- Avoid locations of possible accidental
contact of flue vapors with persons or pets.
- Avoid locations where prevailing winds
could affect the performance of the unit or cause recirculation of the flue gases, such as inside corners of buildings or near adjacent buildings or vertical sur­faces, window wells, stairwells, alcoves, courtyards, or other recessed areas.
- Do not terminate the vent above any
doors or windows; flue condensate could freeze causing ice formations.
- Locate or guard the vent termination to
prevent possible condensate damage to exterior finishes.
3. The vent termination and vent pipe must not extend more than 12 inches beyond the exterior wall. The vent termination for the horizontal concentric snorkel kit must not extend more than 24” beyond the exterior wall.
4. Do not connect or terminate any other appliance to the vent system or multiple units into a common vent system.
WARNING
28
Venting and Combustion Air Installation
Category IV Vent Termination Clearances
Maintain the following clearances to the vent termination:
- At least 6 feet from adjacent walls
- No closer than 5 feet below roof over­hangs
- At least 7 feet above any public walk­ways
- At least 3 feet above any forced air intake (does not include the combustion air inlet) within 10 feet.
- The vent termination must be at least 4 feet from any electric meters, gas meter-regulators, relief valves or other equipment. Never terminate the vent above or below any of these items with­in 4 feet.
- Vent must terminate at least 12 inches above grade or common snow line.
In those applications in which the vent termination is below the projected snow line. The installer has 2 options. In the first option the vent system can be rout­ed vertically through an insulated chase or “riser box” and then terminated hori­zontally. The chase is to be constructed and insulated by the contractor, main­taining clearances for vertical and hori­zontal enclosures. In the second option the installer can use the horizontal con­centric snorket kit, see Fig. 22B page 34.
If the venting application is a horizontal direct vent:
- Must maintain 12-inch clearances below and horizontally from doors and windows. See dimension A Fig. 17.
If the venting application is a horizontal non-direct vent:
Fig.17: Termination of Vent system
Dimension A
Direct Vent - 12 inches
Non-Direct Vent - 4 feet
29
Venting and Combustion Air Installation
- Must maintain 4 feet of clearance below and horizontally from doors and windows. See dimension A Fig. 17.
If the venting application is a vertical direct or non-direct vent application:
- The vent must terminate at least 3 feet above the roof and at least 2 feet higher than any portion of the building within 10 feet.
Multiple Vent Terminations
For multiple unit installation venting horizon­tally, it is recommended to vent as direct vent using the Horizontal Wall Thimble Kit or Horizontal Concentric Kit. The terminations of these installations must maintain the same horizontal centerline and be spaced a minimum 18 inches from center to center.
For multiple unit installation venting vertically, it is recommended to vent as direct vent using Triangle Tube Vertical Concentric Vent Kit. The concentric vent / combustion air termina­tions must maintain a minimum 18 inch spac­ing from vent centerline to vent centerline.
Locating the Combustion Air Inlet
When ducting outside combustion air directly to the appliance the installer must use the fol­lowing guidelines:
1. The total equivalent length of the air inlet duct should not exceed 100 feet as given in Table 2, page 33.
2. The installer must consider the following when determining the location of the com­bustion air inlet:
- The air inlet must terminate at least 12
inches above grade or projected snow line.
- The combustion air inlet must be locat-
ed a minimum 12 inches from the vent termination. This does not apply to Horizontal Concentric Direct Venting
applications using the Horizontal Wall Thimble kit . See Fig. 23 page 35
- The combustion air inlet should not be located above the vent termination.
- The combustion air inlet must be locat­ed in the same pressure zone as the vent termination.
Venting Option - Non Direct Vent / Vertical
In this vent application the PERFORMANCE PLUS is vented vertically through the roof or an unused chimney using only approved 3 inch stainless steel vent material and using room air for combustion.
The installer should consider the following when choosing this vent option:
a. The vent system must contain a con-
densate trap located no higher than 2 feet above the unit. As shown in Fig. 19 page 34.
b. The vent system must pitch back to the
unit 1/4 inch per foot or as specified by the vent manufacturer.
c. Clearance to combustibles must be
maintained per the vent manufacturer’s requirements. Refer to the vent manu­facturer’s installation instructions for additional details.
d. At a minimum, a 3-inch elbow should
be placed on the combustion air inlet of the unit. This will prevent an acciden­tal blockage should anything be placed on top of the unit.
When using an unused chimney as a means of a raceway for the 3 inch vent, the surrounding space cannot be used to draw combustion air.
30
Venting and Combustion Air Installation
Venting Option - Direct Vent / Vertical
In this vent application the PERFORMANCE PLUS is vented vertically through the roof or an unused chimney using the Triangle Tube Concentric Vertical Vent Kit.
The installer should consider the following when choosing this vent option:
a. The vent system should contain a conden-
sate trap located near the unit as shown in Fig. 20, page 33.
b. The vent system must pitch back to the unit
1/4 inch per foot as a minimum.
c. The vent system must maintain the follow-
ing clearances to combustibles:
- 0 inches when there are no horizontal o f fsets and fully enclosed by com­bustibles on all sides
- 1 inch when there are horizontal offsets and fully enclosed by combustibles on all sides.
- 0 inches with or without offsets and unenclosed or with 1 side open and a maximum 3 sides enclosed with com­bustible materials.
- 0 inches with or without offsets and enclosed with non combustible materials.
Venting Option - Non-Direct Vent / Horizontal
In this vent application the PERFORMANCE PLUS is vented horizontally through a wall using only approved 3-inch stainless steel vent material and using room air for combustion.
The installer should consider the following when choosing this vent option:
a. The vent system must contain a con-
densate trap located near the unit as shown in Fig. 21 page 34.
b. The vent system must be pitched a min-
imum 1/4 inch per foot or as specified by the vent manufacturer.
Although the vent system is allowed to pitch away from the unit, it is recom­mended that the vent system pitches toward the unit with a condensate drain installed as close to the unit as possible. Opting to pitch the vent system away poses potential damage to the building exterior or to the surrounding landscape and/or potential risks of icing if conden­sate is formed.
c. Penetration at the wall requires a wall
thimble.
d. Clearance to combustibles must be
maintained per the vent manufacturer’s requirements. Reference the vent man­ufacturer’s installation instructions for additional details.
Maintain a minimum 2-inch clearance to combustible wall and 1-inch clearance to non-combustible in the absence of a manufacturer’s recommended clearance when penetrating a sidewall.
e. At a minimum a 3-inch elbow should
be placed on the combustion air inlet of the unit. This will prevent an acciden­tal blockage should anything be placed on top of the unit.
BEST PRACTICE
31
Venting and Combustion Air Installation
Venting Option - Direct Vent / Horizontal
In this vent application the PERFORMANCE PLUS is vented horizontally through a wall using only approved 3-inch stainless steel vent material and using outside air for combustion.
The installer should consider the following when choosing this vent option:
a. The vent system should contain a con-
densate trap located near the unit as shown in Figs. 22, 22A & 22B, page 34.
b. The vent system must pitch back to the
unit 1/4 inch per foot.
Although the vent system is allowed to pitch away from the unit, it is recom­mended that the vent system pitches toward the unit with a condensate drain installed as close to the unit as possible. Opting to pitch the vent system away poses potential damage to the building exterior or to the surrounding landscape and/or potential risks of icing if conden­sate is formed.
c. Penetration at the wall requires a thimble.
d. Clearance to combustibles must be
maintained per the vent manufacturer’s requirements. Refer to the vent manu­facturer’s installation instructions for additional details.
Maintain a minimum 2-inch clearance to combustible wall and 1-inch clearance to non-combustible in the absence of a manufacturer’s recommended clearance when penetrating a sidewall.
e. For a zero clearance concentric termina-
tion of the vent and combustion air refer to the Horizontal Concentric, Horizontal Single Wall Vent or Horizontal Wa l l Thimble Kits.
There are two methods available for Direct Venting - Horizontal:
Separate: The vent and the combustion air inlet are run together and exit the structure sep­arately with different terminations. See Fig. 23, page 35.
The combustion air inlet and the vent termination must reside in the same pressure zone area of the building for proper operation of the appliance.
Combination: The vent and combustion air ter-
minate at a single concentric point using the Horizontal Concentric, Horizontal Single Wa l l Vent or Horizontal Wall Thimble Kit. See Figs. 22, 22A & 22B page 34.
Horizontal Wall Thimble Kit
- Requires a 5 1/2 inch x 5 1/2 inch penetra­tion through any type of wall.
- Allows zero clearance at the wall penetration.
- Maximum wall thickness is 11 inches.
- The use of a termination elbow for the venting system is not recommended when using the Horizontal Wall Thimble Kit.
To prevent potential nuisance lock-outs or flue gas recirculation it is recom­mended to terminate the vent with a hor­izontal termination tee or side discharge vent hood.
BEST PRACTICES
NOTICE
BEST PRACTICE
32
Venting and Combustion Air Installation
Excessive Horizontal Vent Runs
If maintaining the 1/4 inch per foot pitch requirement creates clearance problems with structural obstacles, i.e. low ceilings, the installer may opt to installing the vent in a manner that pitches up to a high point from the unit and then pitches away from the high point to the vent termination.
A condensate tee should be installed as close as possible to the unit when venting in this manner.
The vent run from the high point to the vent termination should be as minimal in length as possible to reduce the amount of potential con­densate that may form in the vent system.
The vent system must maintain the 1/4 inch per foot pitch to the high point and from the high point to the vent termination.
Vent Appliance Adapters
- The PERFORMANCE requires the use of an appliance adapter as approved by the one of vent manufacturers listed on page 27.
Failure to use an approved vent appli­ance adapter may create improper vent connection and potential flue gas leak­age. Do not mix the manufacturer appli­ance adapter with other manufacturers’ vent components, the vent system could fail or improperly seal, causing leakage of flue products into the building.
Vent Condensate Tee
A vent condensate tee and drain tube should be installed on a horizontal run of vent near the appliance to prevent any potential condensate from entering the flue ways on the unit. See Figs. 19 through 22B pages 33 and 34.
Failure to provide a vent condensate tee close to the appliance could allow acidic flue gas condensate to enter into the appliance flue ways causing premature failure of the appliance.
Condensate Drain Tube
To prevent flue gases from entering into the building it is important the drain tube is fash­ioned into a “pigtail” trap as shown in Figs. 19 through 22B pages 33 and 34.
The drain tube must be filled with water to pre­vent flue gases from emitting into the building prior to operating the appliance.
Periodically inspect the water level in the condensate drain tube. If low, add water as needed to maintain trap level.
If water in drain tube evaporates rapidly due to ambient conditions, propylene glycol may be added or substituted to reduce evaporation.
Pipe the condensate drain tube to a suitable place of drainage or to a condensate pump or sump. Consult local authorities regarding dis­posal of flue gas condensate into public waste water system.
Determining Piping Lengths
Once the venting method and location for the vent termination has been determined the installer must select the vent components required for the system.
The maximum combined equivalent lengths for venting and combustion air inlet are as follows:
- Delta PERFORMANCE PLUS - 200 feet (100 feet each)
NOTICE
WARNING
WARNING
33
Venting and Combustion Air Installation
The maximum equivalent length is the total length of the venting and the com­bustion air inlet combined. This includes termination fittings.
F o r Delta PERFORMANCE PLUS applications that may exceed the 100 feet maximum allowable equivalent length for the venting system, contact Triangle Tube Engineering Department for addi­tional information on how the appliance can be adjusted to the application.
- For each elbow included in the system, the maximum allowable linear length must be reduced as follows:
• Each 90º elbow within the system is the equivalent of 10 linear feet.
• Each 45º elbow within the system is the equivalent of 5 linear feet.
It is recommended that the installer uses the same number of elbows and length of piping on the venting system and the combustion air inlet.
NOTICE
NOTICE
Table 2- Allowable Equivalent Length (Combined Vent and Combustion Air)
Maximum
Allowable for
Linear Length Combined 2 3 4 5 6 7
PERFORMANCE PLUS 180 170 160 150 140 130
Total Elbows within the Venting / Combustion Air System
Fig. 19: Standard Ve rtical Venting Installation Fig. 20: Ve r tical - Direct Vent Combination
34
Venting and Combustion Air Installation
Fig. 21: Standard Horizontal Venting Installation
Fig. 22: Horizontal - Direct Vent Combination
Fig. 22A: Concentric Horizontal Vent Installation
Fig. 22B : Concentric Horizontal - Vent Snorkel
I n s t a l l a t i o n
35
Venting and Combustion Air Installation
Fig. 24B: Vent Termination - Non-
Combustible Wall
Fig. 24A: Vent Termination Combustible
Wall
Fig. 23: Location of Air Inlet Termination
36
Venting and Combustion Air Installation
37
Gas Piping
SECTION VII - Gas Piping
Gas Supply Piping Connection
The gas supply piping must be installed in accordance to all applicable local, state and national codes and utility requirements.
1. Remove the burner jacket hood. Refer to Figure 27 to pipe gas supply to the burner.
a. Install a pipe union at the factory sup-
plied gas nipple, for ease of service.
b. Install a manual shutoff valve in the gas
supply piping as shown in Figure 27. 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 PERFOR­MANCE PLUS gas train as shown in Figure 27.
2. Support the gas piping using hangers. Do not support the piping by the unit or its components.
3. Purge all air from the gas supply piping.
4. Before placing the PERFORMANCE PLUS 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 PERFORMANCE PLUS and its gas valve from the gas supply piping during any pressure test greater than 13”w.c..
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.
Failure to apply pipe dope as detailed above can result in severe personal i n j u ry, death or substantial pro p e r t y damage.
Use a two-wrench method of tightening gas piping near the unit 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.
WARNING
WARNING
WARNING
Fig. 27: Recommended Gas Supply Piping
38
Gas Piping
NATURAL GAS
Pipe Sizing - Natural Gas
1. Refer to Table 3 for pipe length and diame­ter requirements. Based on rated PER­FORMANCE PLUS input (divide by 1,000 to obtain cubic feet per hour).
- Table 3 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.
- Minimum 5”w.c. during flow condi-
tions to the burner. Must be verified during start up and with all gas appli­ances operating.
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.
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 i n j u r y, death or substantial pro p e rt y damage.
WARNING
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)
Table 3: Gas piping sizing - Natural Gas
39
Gas Piping
PROPANE GAS
Pipe Sizing - Propane Gas
1. Contact the local propane gas supplier for recommended sizing of piping, tanks and 100% lockup gas regulator.
P r opane Gas Supply Pre s s u r e Require m e n t s
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
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 i n j u ry, death or substantial pro p e rt y damage.
Prior to start up ensure the unit is set to fire propane. Check the rating label for the type of fuel. Check the gas valve and air inlet for propane conversion labels. If there is a conflict or doubt on the burner set up, remove the gas valve and check for the propane orifice. Failure to ensure proper burner setup could result in severe personal injury, death or sub­stantial property damage.
WARNING
WARNING
Fig. 28: Gas Valve / Venturi Assembly
Internal Wiring
40
SECTION VIII - Internal Wiring
ELECTRICAL SHOCK HAZARD. For your safety, disconnect electrical power supply to the unit before servicing or making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe person­al injury or death.
All electrical contacts shown in Figures 30 & 31 pages 41 & 42 do not have elec­trical power applied. Shown as “off­shelf” condition.
General Requirements
- Wiring must be N.E.C Class 1.
- If original wiring as supplied with the unit must be replaced, use only type 90ºC wire or equivalent.
- The PERFORMANCE PLUS must be electrically grounded as required by National Electrical Code ANSI/NFPA 70 - latest edition.
WARNING
Fig. 29 : Burner Control Wiring
41
Internal Wiring
Fig. 30: Factory Wiring Schematic
42
Internal Wiring
Fig. 31: Factory Internal Wiring
43
External Wiring
SECTION IX - 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.
Line Voltage Connections
1. Connect 120 VAC power wire to the line voltage leads located behind the front con­trol panel.
2. Route the incoming 120 VAC power wire through the right side jacket panel.
3. Use the wire nuts provided to ensure a tight and secure connection.
4. The unit is provided with a service switch, check local code requirements for compli­ance.
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 the Room Thermostat Snap-set located on the rear jacket panel.
2. Remove the snap-set cover and connect the thermostat wiring to terminals C and 1 per Figure 32.
3. 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.
4. Set the thermostat anticipator (if applica­ble) as follows:
- Set for 0.2 amps when wired directly to
the Room Thermostat Snap-set.
- 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 Temperature Limit
1. The PERFORMANCE PLUS may operate with a variable primary operating tempera­ture using an outdoor reset control provid­ed by the installer.
2. Remove the factory jumper across termi­nals 9 and 10 of the wiring terminal. See pages 41 and 42. Connect the outdoor limit control to those terminals.
3. Set the operating limits of the outdoor limit control as follows:
- Maximum operating temperature of
180ºF.
Minimum operating temperature of
150ºF.
4. Set the primary thermostat to the highest possible setting.
Fig. 32: Room Thermostat Snap-set Wiring
External Wiring
44
4 Wire Zone Valve
Fig. 33: Multiple Zone Field Wiring Using Zone Valves
3 Wire Zone Valve
*Use isolation relay on 3-wire
zone valve with non-isolated
end switch. Transformer and
the PERFORMANCE PLUS
control can burn out if isolation
relay is not used.
45
External Wiring
Fig. 34: Field wiring with zone circulators.
46
External Wiring
Fig. 35: Typical Zone Relay Panel Wiring
Fig. 36: Storage Tank Recirculation Wiring
47
Start-Up Preparations
SECTION X - Start Up Preparation
Check System and Domestic Wa t e r Chemistry
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.
System water including additives must be practically non-toxic, having a toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial Pro d u c t s .
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 PERFORMANCE PLUS or leave the unit filled until the con­dition is corrected.
Water Hardness Less Than 7 Grains
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.
Any water conditioning system must be installed and maintained in accor­dance with the water c o n d i t i o n e r ’s m a n u f a c t u r e r ’s specifications and within the operating guidelines of the PERFORMANCE PLUS.
Chlorinated Water
Do not use the PERFORMANCE PLUS 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 PER­FORMANCE PLUS.
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.
Check and Test Antifreeze
For primary systems containing antifreeze solutions, follow the antifreeze manufac­t u r e r ’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.
WARNING
48
Start-Up Preparations
System water including additives must be practically non-toxic, having a toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial Pro d u c t s .
Use of Antifreeze in the Primary System
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 PER­FORMANCE PLUS is 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.
System water including additives must be practically non-toxic, having a toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial Pro d u c t s .
Filling the Inner (Domestic) Tank and System
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 unit.
N e v e r operate the PERFORMANCE PLUS unless both the inner and outer tanks are completely filled.
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 PERFOR­MANCE PLUS and on the domestic hot outlet piping to the building.
3. Vent any air from the domestic piping sys­tem by opening faucets near the unit. 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 ( P r i m a r y) Tank and System
1. Close the primary drain valve located
on the rear of the unit and any manual or automatic air vent in the system.
2. Open all system isolation valves.
CAUTION
CAUTION
WARNING
WARNING
49
Start-Up Preparations
3. Fill the outer tank to correct system pressure. Correct pressure will vary with each application.
Typical residential system fill pressure is 12 psi. System pressure will increase when system temperature incre a s e s . 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 PERFORMANCE PLUS.
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 Low Water Cut-Off Device
- The PERFORMANCE PLUS is pro-
vided with a factory installed Low Water Cut-Off device that measures system pressure of more than 10 psi.
- Remove the front jacket panel and check
for continuity across the low water cut­o f f device wire terminals. The contacts should be closed when system pressure is greater than 10 psi.
Check For Gas Leaks
P r i o r to start-up and during initial opera­tion, smell near the floor and around the unit 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 re p a i r ed immediately.
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 i n j u ry, death or substantial pro p e r t y damage.
Propane installations only - The propane s u p p l i e r 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 unit and periodi­cally after start-up have the propane supplier check and verify the odorant level.
WARNING
WARNING
WARNING
PG PLUS Natural Gas Propane
Model (inch w.c.) (inch w.c.)
PG PLUS-25 1.84 " w.c. (yellow) 1.84" w.c. (yellow)
PG PLUS-30 2.7" w.c. (red) 2.7" w.c. (red)
PG PLUS-35 2.7 " w.c. (red) 2.7" w.c. (red)
PG PLUS-40 2.7 " w.c. (red) 3.35" w.c. (blue)
PG PLUS-45 2.7 " w.c. (red) 3.35" w.c. (blue)
Table 3 : Pressure Switch Setting
50
Start-Up Preparations
Verify Correct Pressure Switch
1. Remove the burner hood and verify the burner pressure switch setting.
2. Check and compare the color of the out­line on the pressure switch label to Table 3 page 49.
The PERFORMANCE PLUS is equipped with an air pressure switch, which provides a safe means of shutting down the unit due to a blockage of the combustion air inlet. The switch is “nor­mally closed” and measures the change in the negative pressure (vacuum) creat­ed by the burner blower.
Verify Correct Air Shutter Setting
- Check and verify the air shutter setting
as listed in Table 4.
- The air shutter is located inside the com-
bustion air inlet adapter located in the top /left jacket panel area. See Fig. 37.
Check Thermostat Circuit
- Unplug the Room Thermostat Snap-set located on the rear of the unit.
- Connect a voltmeter across the end ter­minals of the male half of the Room Thermostat Snap-set.
- Close each thermostat, zone valve and relay in the external circuit one zone at a time and check the voltage reading across the plug.
- There should NEVER be voltage mea­sured at the plug.
- If voltage is measured at the plug under any condition, check and correct the external wiring.
In systems using 3-wire zone valves backfeed of voltage to the unit is a com­mon problem. Use an isolation relay to prevent voltage from the external circuit entering the Room Thermostat Snap-set.
Model Natural Gas Propane
PG PLUS-25 2.5 2.5 PG PLUS-30 2.5 2.5 PG PLUS-35 1 2.0 PG PLUS-40 N/R 0 PG PLUS-45 N/R 0
Table 4 : Air Shutter Settings
NR- Air shutter not required.
Fig. 37: Air Shutter Adjustment
51
Start-Up Procedures
SECTION XI - Start-Up Procedures
Final Checks Before Start-up
Verify the PERFORMANCE PLUS and the primary and domestic systems are full of water and all system compo­nents are correctly set for operation.
Verify Start-up Preparation items outlined on pages 51 thru 53 have been completed.
Verify all electrical connections are correct and securely fasten.
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.
Verify Burner Configuration - Propane Only.
Check for proper labeling on the gas valve, combustion air inlet 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. Refer to Propane Conversion Instructions for additional information on assembly of the gas valve.
Adjustment of the Secondary T h e r m o s t a t L i m i t .
The Secondary (Domestic) Thermostat located on left side of the control panel maintains the minimum domestic water storage temperature.
Set the thermostat knob as shown in Figure 38 page 54.
Maximum limit setting is 140ºF
PERFORMANCE PLUS Start-up
1. Turn the ON-OFF switch located on the front control panel to the OFF position. Turn the electrical supply or any service switch to the unit in the ON position.
2. Read and follow the Operating Instructions outlined on page 52.
If PERFORMANCE PLUS Does Not Start C o r r e c t l y
1. Check for loose electrical connections, blown fuse or open service switch.
2. Check continuity across the Low Water Cut-Off device for close circuit.
3. Is the manual limit control open? Ensure the manual limit is reset to the close position.
4. Is the gas supply valve open at the unit and meter?
5. Is incoming gas supply pressure more than 5”w.c. for natural or propane with all gas appliances operating
6. Are the heating thermostats set below room temperature?
If none of these conditions correct the problem, refer to the PERFORMANCE PLUS Trouble­shooting guide.
Check the PERFORMANCE PLUS and System
Check Domestic Piping.
Check domestic piping and system components for leaks. If found, shut down the unit and repair immediately.
Check Primary Piping.
Check primary system piping and com­ponents for leaks. If found, shut down the unit and repair immediately.
P u r ge any remaining air from the system piping. Air in the system piping will interfere with circulation creating heat distribution problems and system noise.
Check Vent Piping and Combustion Air Piping.
Check for gas-tight seal at every con­nection and seam of the venting and combustion air inlet.
52
Start-Up Procedures
FOR YOUR SAFETY READ BEFORE LIGHTING
OPERATING INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE
1. STOP! Read the safety information above.
2. Set the secondary thermostat to the lowest setting.
3. Turn manual shutoff valve on the gas supply line clockwise to “Close”
4. Set the unit’s “ON-OFF” switch to “OFF”
5. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand.
6. Turn manual shutoff valve on the gas supply line counter clockwise to “Open”
7. Wait five (5) minutes to clear out any gas. If you smell gas, STOP! Follow “B” in the
safety information stated above. If you don’t smell gas, go to next step.
8. Set the unit’s “ON-OFF” switch to “ON”
9. Set the secondary thermostat to the desired set­ting. See Page 54 for recommended thermostat s e t t i n g s .
10. If the appliance will not operate, follow the instructions “To Turn Off Gas To A p p l i a n c e ” and call your service technician or gas supplier.
WARNING
The following instructions must be followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
1. Set the system thermostat to lowest setting.
2. Turn the unit’s “ON-OFF” switch to “OFF”
3. Turn manual shut-off valve on the gas supply line clockwise to “Close”.
A. This appliance is equipped with an electron-
ic ignition system. Do not attempt to light the burner by hand.
B. BEFORE OPERATING, smell all around the
appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone in your building
• Immediately call your gas supplier from a nearby phone. Follow the gas supplier’s i n s t r u c t i o n s .
• If you cannot reach your gas supplier, call the fire department.
C. 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.
53
Start-Up Procedures
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.
Check Gas Piping
1. Check around the unit for gas odor fol­lowing the procedure outlined in this manual on Page 49.
If any gas leaks are found or suspected, shut the unit 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 unit until the leak is corrected. Failure to comply with this procedure could result in severe personal injury, death or sub­stantial property damage.
Verify Flame Pattern and Combustion
Check the flame pattern through the inspection port of the burner. The flame should be blue and stable. The flame should be the length of the burn­er head openings.
Remove the test plug located on the flue hood and insert a combustion test probe.
Test for CO2 or O2 and for CO. The combustion reading should be within the range listed in Table 5. The CO level should not exceed 100 ppm when combustion is correct.
To adjust the combustion level open or close the air shutter by a 1/2 setting.
- Closing the air shutter will decrease the O2 level and increase the CO2 level.
- Opening the air shutter will increase the O2 level and decrease the CO2 level.
A combustion test must be performed after any adjustments are made. Allow the unit to operate for approximately 10 minutes after adjustment before measur­ing any combustion levels. Failure to comply with these pro c e d u r es could result in severe personal injury, death or substantial property damage.
Replace the test port plug when the com­bustion test is completed to prevent flue gas spillage into the building. Failure to comply with this procedure could result in severe personal injury, death or sub­stantial property damage.
Measure Input - Natural Gas Only
1. Operate the unit for approximately 10 minutes.
2. Turn off all gas appliances within the building.
3. At the gas meter, record the time required to use one cubic foot of gas.
4. Calculate gas input using the following equation:
3600 x 1000 / number of second record­ed for one cubic of gas = BTU/H.
5. The BTU/H calculated should approxi­mate the input rating listed on the unit.
WARNING
WARNING
WARNING
WARNING
Natural Gas Propane
O2 Min. 3.00% 3.00%
O2 Max. 5.00% 5.00%
CO2 Min 9.00% 10.50%
CO2 Max 10.00% 12.00%
Table 5: Recommended Combustion Levels
54
Temperature Limits
SECTION XII - Temperature Limits
Studies have indicated that dangerous bacteria can form in the potable water distribution system if certain minimum water temperatures are not maintained. For prevention of this, it is recommend­ed that the Secondary Thermostat be set as shown in Figure 38 and maintained at 130ºF to 140ºF.
Setting Primary Thermostat Limit.
- The Primary (Space Heating) T h e r m o s t a t located on the right side of the control panel acts as the high limit during the space heating function.
- Set the thermostat knob as shown in Figure 39.
- Maximum limit setting is 180ºF
To ensure proper function of the limits the Primary Thermostat must be set higher than the Secondary Thermostat.
Adjustment of Secondary Thermostat Limit
- The Secondary (Domestic) Thermostat located on left side of the control panel maintains the minimum domestic water storage temperature.
- Set the thermostat knob as shown in Figure 38.
- Maximum limit setting is 140ºF.
To adjust the thermostat settings:
- Turn thermostat knob clockwise to increase water temperature
- Turn thermostat knob counter-
clockwise to decrease water t e m p e r a t u r e .
DANGER
Fig. 38: Recommended Secondary
Thermostat Setting
Fig. 39: Recommended Primary Thermostat
Setting
55
Temperature Limits
Setting the Thermostatic Mixing Valve
The thermostatic mixing valve controls the outlet hot water temperature deliv­ered to the faucets.
POTENTIAL SCALD HAZARD The mixing valve must be installed on the PERFORMANCE PLUS. 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.
- Replace the knob and adjust the set temperature of the valve to the desired temperature.
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.
For proper operation of the thermostatic mixing valve, the manual valve on the U­tube assembly MUST remain open to avoid a potential scald hazard.
DANGER
WARNING
56
Check-Out Procedures
SECTION XIII- Check-Out Pro c e d u r e s
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 57.
Check-out Procedures
Both inner and outer tanks filled with water.
Water chemistry checked and verified as outlined on page 47.
The automatic air vent on the unit and any place within the system are open one full turn.
Air is purged from the heating zones and primary system.
Domestic piping is purged of air and has been checked for leaks.
Burner has been confirmed as properly configured for Propane application. (If applicable).
Thermostat circuit wiring checked and verified that no voltage is present to the Room Thermostat Snap-set as outlined on page 50.
Operating Instructions on page 52 were followed during start-up.
Combustion levels and flame pattern verified as outlined on page 53.
Measure the rate of input on Natural Gas as outlined on page 53.
Check the incoming gas pressure to ensure a minimum pressure of 5”w.c during flow conditions to all gas appli­ances and a maximum pressure of
13”w.c during non-flow conditions for natural and propane.
Primary and Secondary T h e r m o s t a t properly set as shown in Figure 38 and 39 page 54.
The thermostatic mixing valve adjusted to the desired domestic hot outlet tem­perature.
Adjusted balancing valves and system limit controls to provide design temper­atures to the primary space heating sys­tem.
In multiple zone applications, adjusted for correct flow of primary heating water to each zone.
Check and verified room thermostat function properly and the thermostat heat anticipator (if used) was properly set.
Observed several operating cycles for proper operation of the PERFOR­MANCE PLUS and the system.
Set the room thermostat(s) to the desired room temperature.
Reviewed all instructions shipped with the PERFORMANCE PLUS with the homeowner or maintenance personnel.
Complete the Installation Record on page 57.
Ensure all manuals and other documen­tation are returned to the Installation envelope and given to the owner for safekeeping.
57
Installation Record
SECTION XIV - Installation Record
58
Maintenance Schedule
SECTION XV - 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.
Check domestic water pressure/domes­tic system piping/domestic thermal expansion tank.
Check domestic and primary thermo­stat settings.
Check ignition electrode (sand off any white oxide; clean and reposition).
Check ignition wiring and ground wiring.
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.
Owner Maintenance
Daily:
Check the area around the unit.
Check the combustion air inlet and ven­tilation openings for blockage.
Check the temperature/pressure gauge.
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.
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.
Periodically:
Check the operation of the domestic mixing valve.
Follow the maintenance pro c e d u re s given throughout this manual. Failure to perform the service and maintenance or follow the directions in this manual could result in damage to the PERFOR­MANCE PLUS or in system compo­nents, resulting in severe personal i n j u ry, death or substantial pro p e r t y damage.
WARNING
59
Maintenance Procedures
SECTION XVI - Maintenance Procedures
MAINTENANCE PROCEDURES
The PERFORMANCE PLUS 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 unit as outlined on page 58 and further explained on pages 59 through 62 should be performed to assure maximum effi­ciency and reliability of the unit. Failure to service and maintain the PERFOR­MANCE PLUS and the system compo­nents could result in equipment failure, causing possible severe personal injury, death or substantial property damage.
The following information pro v i d e s detailed instruction for completing the maintenance items outline in the mainte­nance schedule on page 58. In addition to this maintenance, the PERFOR­MANCE PLUS should be serviced at the beginning of the heating season by a qualified service technician.
Reported Problems
Any problems reported by the owner should be checked, verified and corrected before proceeding with any maintenance procedures.
Check the Surrounding Area
Verify that the area surrounding the PER­FORMANCE PLUS is free of combustible / flammable materials or flammable vapors or liquids. Remove immediately if found.
Verify that air used for combustion is free of any contaminates. Refer to the list of potential materials listed on page 7 of this manual. If any of these products are in the room from which the unit takes its com­bustion air, they must be removed immedi­ately or the combustion air intake must be relocated to another area.
Inspect the 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.
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 unit and verify they are leak free.
Eliminate all primary water system leaks. Continual fresh make-up water w i l l reduce the outer tank life causing tank f a i l u r e. Leaking water may also cause s e v e r e pro p e r ty damage to the surro u n d ­ing are a .
WARNING
WARNING
WARNING
60
Maintenance Procedures
Check Combustion/ Ventilation A i r O p e n i n g s
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 unit, verify that the air inlet piping is connected and sealed. Inspect the air hose connecting the air inlet adapter to the venturi elbow for deterioration.
Failure to inspect the vent system and combustion air inlet piping and have any conditions 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 unit 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 p r o b l e m s .
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.
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 Section V - Primary Piping 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.
- 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.
WARNING
61
Maintenance Procedures
Check Boiler 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.
B e f o r e manually operating the pre s s u r e relief valve ensure the discharge piping is d i r ected 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.
B e f o r e manually operating the pre s s u r e relief valve ensure the discharge piping is d i r ected 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, not due to ther­mal expansion or a faulty or under-pressur­ized thermal expansion tank.
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.
Check Ignition Wiring and Ground Wiring
Inspect the burner wiring from the burner control module to the ground terminal behind the control panel.
Ensure wiring is in good condition and securely connected.
Check ground continuity of the wiring using a continuity meter.
Replace and correct ground wire if ground continuity is not completed and satisfactory.
Check Control Wiring
Inspect all control wiring located behind the control panel and at the burner control module. Ensure wiring is in good condi­tion and properly connected.
Check Thermostat Limit Settings
Check the position of the Secondary and Primary Thermostat knobs, refer to Figure 38 and 39 page 54 for recommended settings.
Perform Start-up and Checkout Procedures
Start the unit 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 refer­enced in this manual.
WARNING
WARNING
62
Maintenance Procedures
Check Burner Flame
Inspect the burner flame through the obser­vation port on the burner mounting plate.
If flame pattern is not fully blue and covers the entire burner surface, shut the unit 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 unit.
Remove the burner head mounting screws and remove the burner head. Inspect the head 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 damage.
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 mounting plate. Ensure the burner head gasket is in good condition and positioned correctly.
Re-assemble the gas supply connection and open the manual gas valve placing the unit back into service.
Flame Signal
The flame signal should be at least 0.6µ Α. Refer to the PERFORMANCE PLUS 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 ground wiring and continuity as a cause for low flame signal. Replace igni­tor if ground and continuity conditions are satisfactory.
Check Combustion Levels
Refer to page 53 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 unit or sys­tem exhibit any unusual behavior.
63
Replacement Parts
SECTION XVII - Replacement Parts
Replacement Parts
Replacement parts can be ordered and purchased through a local Triangle Tube distributor. When ordering parts, spec­ify the Model Number and Serial Number. Include a description of the part and a replacement part number. Using modified or other manufacturer parts will not be covered by warranty and may damage or cause improper function of the unit.
Refer to pages 64 and 67 for description and replacement part numbers.
WARNING
Replacement Parts
64
Fig. 40: Jacket Components
Item Part No. Description Quantity required by Model
PG PLUS-25/ 30/35 PG PLUS-40/45
HMJKTF25 Complete Jacket Set 1
HMJKTF40 Complete Jacket Set 1
HMJKT25F Jacket, Front 1
HMJKT40F Jacket, Front 1
HMJKT25L Jacket, Left side 1
HMJKT40L Jacket, Left side 1
HMJKT25R Jacket, Right side 1
HMJKT40R Jacket, Right side 1
HMJKT25B Jacket , Back 1
HMJKT40B Jacket , Back 1
HMJKT25TOP Jacket, Top cover 1
HMJKT40TOP Jacket, Top cover 1
6 PGRKIT20 Low Water Cut-Off Device LWCO 1 1
HMHOO0611
Burner Jacket Hood
5
1
2
3
4
65
Replacement Parts
Item Part No. Description
Operating Thermostat
Primary or Secondary
Manual Reset Hight Limit
Pre-set at 205ºF
Auto Reset High Limit
Pre-Set at 194ºF
Temperature / Pressure
Gauge
Control Panel
PGRKIT21
PGRKIT 22
HMCS01
PGRKIT23
HMGAU01
7
11
8
9
10
Fig. 41: Control Panel Components
66
Replacement Parts
Item Part No. Description
R1 Relay - Controls
Burner Function
R2 Relay - Controls
Domestic Priority & Circulator
120 V-24 V 40VA
Transformer
13
PGRKIT18
12A
PGRKIT19
12B
PGRKIT 19
Fig. 42: Electrical Panel Components
Part No. Description
HMRLV01 Pressure Relief Valve 30 psi
P3AVT01 Air Vent
HMVLV07 Thermostatic Mixing valve 3/4"
HNSNP02 Snap sets Male / Female
HMTPV01 Temperature/Pressure Relief Valve (PG PLUS-30/35/40/45 only)
HMTPV03 Temperature/Pressure Relief Valve (PG PLUS-25 only)
67
Replacement Parts
Fig. 43: Burner Components
Item Part Number Description Where Used
14 PGRKIT01 Gas valve replacement kit ALL
PGRKIT02 PG PLUS-25 Blower / motor replacement kit PG PLUS-25
PGRKIT03 PG PLUS-30 Blower / motor replacement kit PG PLUS-30
PGRKIT04 PG PLUS-35 Blower / motor replacement kit PG PLUS-35
PGRKIT05 PG PLUS-40 Blower / motor replacement kit PG PLUS-40
PGRKIT06 PG PLUS-45 Blower / motor replacement kit PG PLUS-45
PGRKIT09 Burner head replacement kit PG PLUS-25/30/35
PGRKIT10 Burner head replacement kit PG PLUS-40/45
PGRKIT11 Pressure switch replacement kit with 1.84" w.c.
pressure switch
PGRKIT12 Pressure switch replacement kit with 2.7" w.c. See Table 3
pressure switch Page 49
PGRKIT13 Pressure switch replacement kit with 3.35" w.c.
pressure switch
PGRKIT14 Ignitor replacement kit PG PLUS-25/30/35
PGRKIT17 Ignitor replacement kit PG PLUS-40/45
19 PGRKIT16 UT Ignition control module replacement kit ALL
18
15
16
17
Specifications
68
Fig. 45: Rear View
Fig. 44: Side View
1. Primary circuit, ø 1” NPT
2. Primary circuit drain valve connection, ø 1/2” NPT
3. Domestic temperature/pressure relief valve (150 psi), ø 3/4” NPT
4. Primary circuit & pressure relief valve (30 psi), ø 1” NPT
5. Domestic cold water inlet, ø 3/4” NPT
6. Hot water outlet & secondary thermostat sensor, ø 3/4” NPT
7 . Manual reset safety sensor & pressure indicator sen-
s o r , ø 3/4” NPT
8. Primary thermostat sensor, temperature indicator sensor and automatic reset safety sensor, ø 1/2” NPT
9. L.W.C.O. pressure sensor, ø 1/2” NPT (shown as item 6 on page 66)
10. Primary circuit & air vent, ø 1” NPT
11. Gas Supply
12. 120 V Electric Supply
Fig. 46: Top View
Specifications
69
Table 7: PERFORMANCE PLUS Data
Table 6: Dimensional Data
Type PG PLUS-25 PG PLUS-30 PG PLUS-35 PG PLUS-40 PG PLUS-45
Input Nat. Gas Btu/hr 100,000 120,000 140,000 165,000 199,000
Inner Tank Capacity Gal 17 17 17 22 22
Outer Tank Capacity Gal 20 20 20 18 18
Dimensions Inches
A 59 59 59 67 67
B 54 54 54 62.5 62.5
C 54.5 54.5 54.5 63.5 63.5
Vent outlet size 3 3 3 3 3
TP Valve (domestic) ø 3/4" 3/4" 3/4" 3/4" 3/4"
Domestic water ø 3/4" 3/4" 3/4" 3/4" 3/4"
Primary connection ø 1 " 1 " 1 " 1 " 1 "
Drain ø 1/2" 1/2" 1/2" 1/2" 1/2"
Empty weight lb 345 345 345 485 485
Heat exchanger surface Sq. Ft. 17 17 17 26.5 26.5
Graph 1: PERFORMANCE PLUS Pressure Loss - Primary Side
Model 10 Min. Peak 1st Hour Continuous Flow Combustion AFUE Heating
Flow Rating @ 80ºF Rise Efficiency Capacity
(gallons) (gallons) (gph) (%) (%) MBH
PG PLUS-25 54 162 130
86.3 86.1 86
PG PLUS-30 59 187 155
85.7 85.6 102
PG PLUS-35 64 212 180
85.5 85.2 119
PG PLUS-40 75 250 210
86.0 85.7 141
PG PLUS-45 80 290 255
85.5 85.2 170
Additional quality water heating equipment available
from
Triangle Tube/Phase III
- 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
- Construction of high quality corrosion resistant stain­less steel (AISI 316)
- Specially designed built-in flow restrictor to assure maximum heat exchange
- Compact and light weight
- Available in 5 sizes that can accommodate any size pool or spa
TTP Brazed Plate Heat Exchangers
- For domestic water, snow melting, radiant floor, refrigeration
- Plates made of stainless steel, with a 99.9 % copper and brazed, ensuring a high resistance to corrosion
- Self cleaning and self descaling
- Computerized sizing available from Tr i a n g l e Tube/Phase III
- Available in capacities from 25,000 BTU/hr to 5,000,000 BTU/hr
Phase III Indirect Fired Water Heaters
Maxi-flo Pool and Spa Heat Exchangers
Freeway Center - 1 Triangle Lane - Blackwood, NJ 08012 Tel: (856) 228 8881 - Fax: (856) 228 3584 h t t p : / / w w w.triangle tube.com E-mail: Info@triangle tube.com
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