TriangleTube instinct SOLO 110 Instruction Manual

• To maintain the safety & longevity of
your appliance, read and follow the
maintenance schedule information
throughout this manual.
• If the information in this manual
is not followed exactly, a fire or
explosion may result causing
substantial property damage,
serious injury, or death.
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 supplier’s instructions.
- If you cannot reach your gas
supplier, call the
fire department.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
WARNING
- Customer must register unit within thirty (30)
days of installation in order to gain warranty
coverage. See Warranty Card for details.
- Leave all documentation received with
appliance with the owner for future
reference.
NOTICE
THE
ORIGINAL
INNOVATORS
SOLO 110155199 & COMBI 155199
Installation &
Maintenance
Manual
222169 A01 - July 2019
2019-16

INTENTIONALLY LEFT BLANK

iii
TABLE OF CONTENTS
PRODUCT AND SAFETY INFORMATION.......................................................................... XI
CHAPTER 1 - PRE-INSTALLATION REQUIREMENTS ........................................................ 1
1.1. INSTINCT boilers - Code Compliance ........................................................................................... 1
1.1.1 Code Restrictions .................................................................................................................. 1
1.1.2 Operating Restrictions.......................................................................................................... 1
1.2. Determining Product Location.......................................................................................................2
1.3. Boiler Freeze Protection Feature ...................................................................................................2
1.4. Boiler Replacement.........................................................................................................................2
1.5. Recommended Clearances............................................................................................................3
1.6. Residential Garage Installations ....................................................................................................3
CHAPTER 2 - COMBUSTION AIR & VENTING ................................................................... 5
2.1. Combustion Air Contamination.....................................................................................................5
2.2. Ventilation and Combustion Air Requirements - Direct Vent......................................................6
2.3. Ventilation and Combustion Air Requirements - Category IV.....................................................6
2.4. Methods of Accessing Combustion Air Into A Space - Category IV ...........................................7
2.4.1. Indoor Combustion Air.......................................................................................................... 7
2.4.2. Outdoor Combustion Air.......................................................................................................7
2.4.3 Combination of Indoor and Outdoor Combustion Air ......................................................8
2.5. Combustion Air and Vent Piping....................................................................................................8
2.6. Removal of an Existing Boiler from a Common Vent System.....................................................9
2.7. Carbon Monoxide Detector Installation ......................................................................................10
2.8. Commonwealth of Massachusetts Installation Requirements .................................................10
2.8.1 Installation of Carbon Monoxide Detectors. ......................................................................10
2.8.2 Approved Carbon Monoxide Detectors. ...........................................................................10
2.8.3 Signage ................................................................................................................................ 10
2.8.4 Inspection. ........................................................................................................................... 10
2.8.5 Manufacturer Requirements - Gas Equipment Venting System Provided. ....................11
2.8.6 Manufacturer Requirements - Gas Equipment Venting System Not Provided. .............11
CHAPTER 3 - UNIT PREPARATIONS ................................................................................ 13
3.1. Handling Instructions ...................................................................................................................13
3.2. Wall Mounting Installation ............................................................................................................ 13
3.3. Accessory Box...............................................................................................................................13
3.4. Wall Mounting Guidelines ............................................................................................................. 14
3.5. Stud Walls - Installation ............................................................................................................... 14
3.6. Wall Bracket Installation - Solid Walls.......................................................................................... 14
3.7. Boiler Mounting............................................................................................................................. 14

iv
TABLE OF CONTENTS
CHAPTER 4 - BOILER PIPING ........................................................................................... 15
4.1. General Piping Requirements ...................................................................................................... 15
4.2. Pressure Relief Valve .................................................................................................................... 15
4.3. Boiler Air Vent................................................................................................................................ 16
4.4. Low Water Cutoff Device .............................................................................................................. 16
4.5. Additional Limit Control................................................................................................................ 17
4.6. Backflow Preventer....................................................................................................................... 17
4.7. INSTINCT Solo Boiler System Piping .......................................................................................... 17
4.7.1 Expansion Tank and Makeup Water................................................................................... 18
4.7.2 Diaphragm Expansion Tank................................................................................................ 18
4.7.3 Closed-Type Expansion Tank.............................................................................................. 18
4.7.4 Circulator.............................................................................................................................. 18
4.7.5 Sizing Primary Piping .......................................................................................................... 19
4.7.6 Domestic Hot Water System Piping................................................................................... 19
4.7.7 System Piping – Zone Circulators...................................................................................... 19
4.7.8 System Piping – Zone Valves ............................................................................................. 19
4.7.9 System Piping – Through Boiler ........................................................................................ 19
4.7.10 System Piping – Radiant Heating ...................................................................................... 19
4.7.11 System Piping – Special Application ................................................................................. 21
4.7.12 System Piping – Multiple Units Installation ...................................................................... 21
4.8. INSTINCT Combi Boiler System Piping....................................................................................... 21
4.8.1 Expansion Tank and Makeup Water...................................................................................22
4.8.2 Diaphragm Expansion Tank................................................................................................22
4.8.3 Circulator..............................................................................................................................22
4.8.4 Sizing Primary Piping ..........................................................................................................22
4.8.5 System Piping – Zone Circulators......................................................................................22
4.8.6 System Piping – Zone Valves .............................................................................................22
4.8.7 System Piping – Through Boiler ........................................................................................23
4.8.8 System Piping – Radiant Heating ......................................................................................23
4.8.9 System Piping – Special Application .................................................................................23
4.9. Optional System Piping and Cascading ..................................................................................... 23
CHAPTER 5 - INSTINCT COMBI UNITS - DOMESTIC PIPING........................................ 27
5.1. Domestic Piping Pressure Relief Valve........................................................................................27
5.1.1 Standard Installation...........................................................................................................27
5.1.2 Pressure Relief Valve - Standard Installations ..................................................................27
5.1.3 Pressure Relief Valve Discharge Piping ............................................................................ 28

v
TABLE OF CONTENTS
5.2. Thermal Expansion ...................................................................................................................... 28
5.3. Water Hammer............................................................................................................................. 29
5.4. Vacuum Breaker........................................................................................................................... 29
5.5. Hydro-Block.................................................................................................................................. 29
5.6. General Piping .............................................................................................................................. 30
5.7. Thermostatic Mixing Valve.......................................................................................................... 30
5.8. Storage Tank Installation............................................................................................................. 30
CHAPTER 6 - INSTALLING VENT/COMBUSTION AIR & CONDENSATE DRAIN ..........38
6.1. Installing Vent and Combustion Air............................................................................................ 38
6.2. Installing Condensate Drain Assembly into INSTINCT Solo Units........................................... 38
CHAPTER 7 - GAS PIPING ................................................................................................ 40
7.1. Gas Supply Piping Connection.................................................................................................... 40
7.2. Natural Gas.................................................................................................................................... 41
7.2.1 Pipe Sizing............................................................................................................................ 41
7.2.2 Supply Pressure Requirements ......................................................................................... 41
7.3. Propane Gas ................................................................................................................................. 42
7.3.1 Pipe Sizing........................................................................................................................... 42
7.3.2 Supply Pressure Requirements ........................................................................................ 42
CHAPTER 8 - WIRING ........................................................................................................45
8.1. Internal Wiring .............................................................................................................................. 45
8.1.1 General Requirements ....................................................................................................... 45
8.1.2 Fuse Locations.................................................................................................................... 45
8.2. External Wiring ............................................................................................................................. 48
8.2.1 General Requirements ....................................................................................................... 48
8.2.2 Line Voltage Connections.................................................................................................. 48
8.3. External Wiring - INSTINCT Solo Units....................................................................................... 48
8.3.1 Circulator Wiring................................................................................................................. 48
8.3.2 Low Voltage Connections .................................................................................................. 49
8.3.3 Thermostat Wiring ............................................................................................................. 49
8.3.4 Outdoor Sensor Wiring ...................................................................................................... 49
8.3.5 Domestic Hot Water Wiring ............................................................................................... 49
8.3.6 Additional Boiler Limits...................................................................................................... 49
8.3.7 External Modulation Control ............................................................................................. 50
8.3.8 System Sensor Wiring........................................................................................................ 50
8.3.9 Cascade Wiring - Optional ................................................................................................. 50
8.3.10 Modbus................................................................................................................................ 50

vi
TABLE OF CONTENTS
CHAPTER 9 - CTRLMAX OPERATION .............................................................................. 51
9.1. CTRLMax Navigation .................................................................................................................... 51
9.2. CTRLMax Menu Structure........................................................................................................... 52
9.3. Home Screen................................................................................................................................ 53
9.4. Status Line Messages.................................................................................................................. 54
9.5. Main Menu .................................................................................................................................... 55
9.6. EZ Setup ....................................................................................................................................... 55
9.7. Heating EZ Setup ................................................................................................................ 56
9.7.1 Select CH Demand (No outdoor sensor connected) ...................................................... 56
9.7.2 Select CH Demand (Outdoor sensor connected).............................................................57
9.8. Domestic Hot Water EZ Setup - INSTINCT Solo Units .................................................... 58
9.9. Domestic Hot Water EZ Setup - INSTINCT Combi Units ................................................ 59
9.10. Altitude Setup............................................................................................................................... 59
9.11. EZ Setup Reset ................................................................................................................... 60
9.12. Display EZ Setup .................................................................................................................. 60
9.13. CH/DHW Operation .............................................................................................................61
9.14. Boiler Information .................................................................................................................61
9.14.1 Information Items............................................................................................................... 62
9.14.2 Lockout Screen................................................................................................................... 63
9.14.3 Manual Reset Lockouts...................................................................................................... 64
9.14.4 Automatic Reset Blocking Lockouts................................................................................. 65
CHAPTER 10 - START-UP PREPARATION ........................................................................67
10.1. Boiler System Fluid Requirements ..............................................................................................67
10.1.1 Boiler Fluid pH Level 6.0 to 8.0 ..........................................................................................67
10.1.2 Boiler Fluid Hardness Less Than 7 Grains.........................................................................67
10.1.3 Chlorinated Water ...............................................................................................................67
10.1.4 Flush Boiler to Remove Sediment......................................................................................67
10.1.5 Cleaning of Old Boiler/System: .........................................................................................67
10.1.6 Cleaning of New Boiler/System: .......................................................................................67
10.1.7 Check and Test Antifreeze................................................................................................. 68
10.1.8 Use of Antifreeze in the Boiler System ............................................................................. 68
10.2. Filling the Boiler System .............................................................................................................. 69
10.3. INSTINCT Combi Water Heater - Water Requirements ............................................................ 69
10.3.1 Filling the Domestic Circuit................................................................................................ 69

vii
TABLE OF CONTENTS
10.4. Check Low Water Cut-Off Device................................................................................................ 69
10.5. Check For Gas Leaks ................................................................................................................... 70
10.6. Check Thermostat Circuit ........................................................................................................... 70
10.7. Inspect Condensate Drain Assembly ......................................................................................... 70
CHAPTER 11 - START-UP PROCEDURES ..........................................................................71
11.1. Final Checks Before Start-Up....................................................................................................... 71
11.2. INSTINCT Start-Up ....................................................................................................................... 71
11.3. Check the INSTINCT and System................................................................................................ 71
11.3.1 Check Boiler Piping. ............................................................................................................ 71
11.3.2 Check Vent and Combustion Air Piping............................................................................. 71
11.3.3 Verify Carbon Monoxide Detector ..................................................................................... 71
11.3.4 Check Gas Piping.................................................................................................................73
11.3.5 Verify Flame Pattern and Combustion ..............................................................................73
11.3.6 Measure Input - Natural Gas Only......................................................................................74
11.3.7 Test High Temperature Limit..............................................................................................74
CHAPTER 12 - OUTDOOR RESET CONTROL................................................................... 75
12.1. Mounting the Outdoor Sensor .....................................................................................................75
12.2. Wiring the Sensor..........................................................................................................................75
CHAPTER 13 - EXTERNAL MODULATING CONTROL ..................................................... 77
13.1. Wiring the Modulating Controller.................................................................................................77
13.2. CTRLMax Programming...............................................................................................................77
13.3. Programming of External Modulating Control............................................................................77
CHAPTER 14 - CHECK-OUT PROCEDURES .....................................................................79
CHAPTER 15 - INSTALLATION RECORD .......................................................................... 81
CHAPTER 16 - MAINTENANCE SCHEDULES...................................................................83
16.1. Service Technician ....................................................................................................................... 83
16.2. Owner Maintenance..................................................................................................................... 83
CHAPTER 17 - MAINTENANCE PROCEDURES ................................................................85
17.1. Service Technician Maintenance Procedures ........................................................................... 85
17.2. Reported Problems...................................................................................................................... 85
17.3. Check Surrounding Area ........................................................................................................... 85
17.4. Inspect Burner Area..................................................................................................................... 85
17.5. Check System Piping................................................................................................................... 85
17.6. Clean Condensate Drain Assembly ............................................................................................ 85
17.7. Check Ventilation Air Openings .................................................................................................. 86
17.8. Inspect Vent and Combustion Air Piping ................................................................................... 86

viii
TABLE OF CONTENTS
17.9. Check Boiler System.................................................................................................................... 86
17.10. Check Expansion Tank................................................................................................................. 86
17.11. Check Boiler Relief Valve ............................................................................................................. 86
17.12. Inspection of Ignitor..................................................................................................................... 86
17.13. Check Ignition Cable and Ground Wiring ....................................................................................87
17.14. Check Control Wiring....................................................................................................................87
17.15. Check Control Settings ................................................................................................................87
17.16. Perform Start-up and Checkout Procedures..............................................................................87
17.17. Check Burner Flame .....................................................................................................................87
17.18. Check Flame Signal.......................................................................................................................87
17.19. Check Combustion Levels........................................................................................................... 88
17.20. Check Flue Gas Temperature...................................................................................................... 88
17.21. Clean Heat Exchanger ................................................................................................................. 88
17.22. Check Carbon Monoxide Detectors ........................................................................................... 88
17.23. Review With Owner ...................................................................................................................... 88
17.24. Torque Specifications Table ........................................................................................................ 88
CHAPTER 18 - REPLACEMENT PARTS.............................................................................89
CHAPTER 19 - PRODUCT SPECIFICATIONS.................................................................. 101

ix
INDEX OF ILLUSTRATIONS AND TABLES
Fig. 1 - All Combustion Air from adjacent Indoor Spaces through Indoor Combustion Openings ......7
Fig. 2 - All Combustion Air from Outdoors Through One Permanent Air Opening ...............................7
Fig. 3 - All Combustion Air from Outdoors Through Ventilated Attic .....................................................8
Fig. 4 - All Combustion Air from Outdoors Through Horizontal Ducts...................................................8
Fig. 5 - Accessory Box Contents .............................................................................................................13
Fig. 6 - INSTINCT Pressure Relief Valve Installation .............................................................................. 15
Fig. 7 - Piping Component Legend .......................................................................................................... 16
Fig. 8 - INSTINCT Solo Near Boiler Piping - Diaphragm Expansion Tank............................................. 17
Fig. 9 - Near Boiler Piping - Closed Type Expansion Tank .....................................................................18
Fig. 10 - 3 Boiler Cascade, 1 System Pump, 1 CH Pump and 1 DHW Pump (Manual Pump Configuraiton) ....20
Fig. 11 - INSTINCT Combi Near Boiler Piping - Diaphragm Expansion Tank ........................................ 21
Fig. 12 - INSTINCT Combi System Piping - Zoning w Valves ............................................................... 24
Fig. 13 - INSTINCT Combi - System Piping - Multi Zone Valve - Single Circulator ............................. 25
Fig. 14 - INSTINCT Combi - System Piping - Single Zone with Single Circulator.............................. 26
Fig. 15 - Standard Installation of the Pressure Relief Valve ...................................................................27
Fig. 16 - INSTINCT Combi - Hydro-block Flow Diagram ....................................................................... 29
Fig. 17 - INSTINCT Combi System Piping - Single Zone System with Single System/Boiler Circulator .....31
Fig. 18 - INSTINCT Combi System Piping - Domestic piping - Storage tank installation .................. 32
Fig. 19 - Multiple Zones - Panel Wiring with Circulators....................................................................... 33
Fig. 20 - INSTINCT Combi System Piping - Multiple Zones - Panel Wiring with Valves .................... 34
Fig. 21 - INSTINCT Solo System Piping - Multi Zone System with Single System/Boiler Circulator .....35
Fig. 22 - INSTINCT Solo System Piping - Indirect Water Heater installation ..................................... 36
Fig. 23 - Instinct Solo - Cascade Piping..................................................................................................37
Fig. 24 - Condensate Drain Assembly................................................................................................... 39
Fig. 25 - Recommended Gas Supply Piping .......................................................................................... 40
Fig. 26 - Gas Valve / Venturi Assembly - INSTINCT Solo110 ............................................................... 43
Fig. 27 - Gas Valve / Venturi Assembly - INSTINCT Solo/Combi 155 ................................................. 43
Fig. 28 - Gas Valve / Venturi Assembly - INSTINCT Solo/Combi 199 ................................................. 44
Fig. 29 - CTRLMax Control Module Fuse Location ............................................................................... 45
Fig. 30 - INSTINCT Solo Boiler Factory Wiring...................................................................................... 46
Fig. 31 - INSTINCT Combi Boiler Factory Wiring ....................................................................................47
Fig. 32 - Terminal Strip Location............................................................................................................ 48
Fig. 33 - Low Voltage Connections ......................................................................................................... 49
Fig. 34 - CTRLMax User Interface ........................................................................................................... 51
Fig. 35 - INSTINCT Solo Jacket Components....................................................................................... 89
Fig. 36 - INSTINCT Combi Jacket Components.................................................................................... 90
Fig. 37 - INSTINCT Solo 110 Internal Components ............................................................................... 91

x
INDEX OF ILLUSTRATIONS AND TABLES
Fig. 38 - INSTINCT Solo 155 Internal Components............................................................................... 92
Fig. 39 - INSTINCT Combi 155 Internal Components........................................................................... 93
Fig. 40 - INSTINCT Combi 199 Internal Components.......................................................................... 94
Fig. 41 - INSTINCT Solo 110 Burner Components .............................................................................. 95
Fig. 42 - INSTINCT Solo/Combi 155 Burner Components ................................................................ 96
Fig. 43 - INSTINCT Combi 199 Burner Components ............................................................................97
Fig. 44 - INSTINCT Control & Display Enclosures................................................................................ 98
Fig. 45 - INSTINCT Combi Hydro-block ............................................................................................... 99
Fig. 46 - Front View INSTINCT Solo 110 ..............................................................................................102
Fig. 47 - Right Side View INSTINCT Solo 110 .......................................................................................103
Fig. 48 - Front View INSTINCT Solo 155 ..............................................................................................104
Fig. 49 - Right Side View INSTINCT Solo 155......................................................................................105
Fig. 50 - Front View INSTINCT Solo 199..............................................................................................106
Fig. 51 - Right Side View INSTINCT Solo 199 ......................................................................................107
Fig. 52 - Front View INSTINCT Combi 155...........................................................................................108
Fig. 53 - Right Side View INSTINCT Combi 155 ..................................................................................109
Fig. 54 - Front View INSTINCT Combi 199 .......................................................................................... 110
Fig. 55 - Right Side View INSTINCT Combi 199 ...................................................................................111
Graph 1 - INSTINCT Solo - Pressure Loss Through Boiler................................................................... 112
Table 1 - Natural Gas Venturis.................................................................................................................. 41
Table 2 - Gas Piping Sizing - Natural Gas................................................................................................ 41
Table 3 - Propane Conversion Venturis.................................................................................................. 42
Table 4 - Outdoor Reset Preset Selections.............................................................................................57
Table 5 - Throttle Screw Adjustment ......................................................................................................74
Table 6 - Acceptable Combustion Levels...............................................................................................74

xi
SAFETY
PRODUCT AND SAFETY INFORMATION
This manual contains important information with respect to the
installation, starting up and maintenance of the appliance.
This manual must be provided to the Homeowner, who will
keep it in a safe place for future reference.
Triangle Tube accepts no liability for any damage,
injury, or loss of life resulting from incorrect
installation, alteration of any factory supplied
parts, or the use of parts or ttings not specied by
Triangle Tube. If there is a conict or doubt about the
proper installation of the unit or any factory supplied
replacement parts please contact Triangle Tube
Technical Support.
DEFINITIONS
The following terms are used throughout this manual
to bring attention to the presence of potential hazards
or to important information concerning the product.
Indicates the presence of a hazardous situa-
tion which, if ignored, will result in substantial
property damage, serious injury, or death.
Indicates a potentially hazardous situation
which, if ignored, can result in substantial
property damage, serious injury, or death.
Indicates a potentially hazardous situation
which, if ignored, can result in minor property
damage, or injury.
Indicates special instructions on installation,
operation or maintenance, which are import-
ant to the equipment but not related to person-
al injury hazards.
Indicates recommendations made by Triangle
Tube for the installers, which will help to ensure
optimum operation and longevity of the equip-
ment.
DANGER
WARNING
CAUTION
NOTICE
BEST PRACTICE
• 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.
• Avoid electrical shock when servicing the
appliance, by disconnecting the electrical supply
prior to performing maintenance.
• Failure to comply with these instructions will
result in substantial property damage, serious
injury, or death.
• What to do if you smell gas:
- Do not try to light any appliance
- Do not touch any electrical switch; do not use
any phone in your building.
- Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
- If you cannot reach your gas supplier, call the
fire department.
• Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
• Prior to installing this product, the qualified
installer must read all instructions included in
this manual and all accompanying manuals/
documents with this appliance.
• All installation steps required in these manuals
must be performed in the proper order given.
• This product must be maintained / serviced and
inspected annually by a qualified service technician.
• A byproduct of any gas fired appliance is carbon
monoxide. Triangle Tube requires the installation
of a minimum of two (2) hard-wired carbon
monoxide detectors with an alarm and battery
back-up; one in the mechanical room where
the boiler is located and another installed in
the living area outside the bedroom(s) for all
installations. Consult the local authority having
jurisdiction for any additional carbon monoxide
detector requirements in your area. See Section
2.8 on page 10 for additional carbon monoxide
detector requirements in Massachusetts.
• Failure to comply with these instructions can
result in substantial property damage, serious
injury, or death.
DANGER
WARNING
IMPORTANT SAFETY INFORMATION FOR
THE HOMEOWNER AND THE INSTALLER

• It is prohibited to carry out any modifications to
the appliance without prior written consent from
Triangle Tube.
• Faulty parts must only be replaced by genuine
Triangle Tube factory parts.
• Failure to comply with these instructions can result
in minor property damage, or injury.
• The Instinct appliance is supplied with an acoustic
dampening foam rubber insert located in the
appliance air inlet. DO NOT remove this on installation.
• The homeowneris onlypermittedto carry outthe basic
set-up operations (EZ Setup) after he has received all
relevant instructions from the installer. Any other set-
up must be carried out by a qualified installer.
• In case of any anomaly, please call your qualified
service technician.
• Make sure to reference the unit’s model number and
serial number from the rating label when inquiring
about service or troubleshooting.
• Triangle Tube reserves the right to change the
technical characteristics, components and features of
its products without prior notice. Check for an updated
version of this manual at www.triangletube.com.
CAUTION
NOTICE
• Should overheating occur or if the gas supply fails
to shut off, turn OFF the manual gas control valve
external to the appliance.
• Do not add cold make up water when the
appliance is hot. Thermal shock can potentially
cause cracks in the heat exchanger.
• Failure to comply with these instructions can
result in substantial property damage, serious
injury, or death.
Protection must be taken against excessive pressure!
TO PROTECT AGAINST EXCESSIVE PRESSURE:
• Verify that a field supplied 150 psi pressure
relief valve is installed in the recommended
location for Combi models using the domes-
tic hot water function (DHW Side).
• Verify the 30 psi relief valve supplied is in-
stalled in the location provided (CH Side). In
installations where the CH pressure exceeds
30 psi, a 50 psi relief valve (not included) can
be installed in lieu of the 30 psi relief valve.
• To avoid injury, install the relief valves in com-
pliance with local code requirements.
Failure to comply with these instructions can
result in substantial property damage, seri-
ous injury, or death.
WARNING
WARNING
HOT WATER CAN SCALD!
Water temperature over 125ºF can cause se-
vere burns instantly or death from scalds.
• Children, disabled and elderly are at
highest risk of being scalded.
Ū Never leave them unattended in or
near shower, bathtub or sink.
Ū Never allow small children to use a hot
water faucet or draw their own bath.
• To avoid any potential scald hazard or if
codes require specific water temperatures
at the hot water faucet, the installer must:
Ū Install a thermostatic mixing valve at
this appliance and ensure it is working
property AND
Ū Set the domestic hot water tempera-
ture to the lowest temperature which
satisfies your hot water needs.
Ū Feel and adjust water temperature be-
fore bathing or showering.
Ū Water drained from the system drain
valves may be extremely hot.
TO AVOID INJURY:
• Make sure all connections are tight.
• Direct water flow away from any person.
• Failure to comply with these instructions
will result in substantial property damage,
serious injury, or death.
Bacteria can develop in the domestic water
system if certain minimum water tempera-
tures are not maintained. Failure to maintain
at least 140°F [60°C] domestic hot water tem-
perature or use the Antilegionella function
can result in bacteria development, which
can result in serious injury, or death.
DANGER
WARNING
xii
SAFETY
PRODUCT AND SAFETY INFORMATION

1
CHAPTER 1
CHAPTER 1 - PRE-INSTALLATION REQUIREMENTS
1.1. INSTINCT boilers - Code Compliance
The INSTINCT units must be installed by a qualied in-
staller in accordance with the following:
• All applicable local, state, national and provin-
cial codes, ordinances, regulations and laws.
• For installations in Massachusetts, code re-
quires the INSTINCT to be installed by a licensed
plumber or gas tter, and if antifreeze is utilized,
the installation of a reduced pressure back-ow
preventer device is required in the boiler’s cold
water ll or make up water supply line.
• For installation in Massachusetts, all direct vented
appliances must comply with the guidelines as
outlined in Section 2.8 on page 10.
• The National Fuel Gas Code (NFPA54/ ANSI Z 223.1).
• National Electric Code (ANSI/NFPA 70).
• For installations in Canada - Installation Code for
Gas Burning Equipment (CAN/CSA B149.1), Ca-
nadian Electrical Code Part 1 (CSA C22.1).
• Standards for Controls and Safety Devices for
Automatically Fired Boilers (ANSI/ASME CSD-1),
when required.
The Instinct gas manifold and gas controls
meet the safe lighting and other performance
requirements as specified in ANSI Z21.13.
Where recommendations in this manual dier from lo-
cal or national codes, the local or national codes take
precedence.
1.1.1 Code Restrictions
The single wall heat exchanger in the INSTINCT Combi
water heater complies with National Standard Plumb-
ing Code, provided that:
• Boiler water (including additives) is practically
non-toxic, having toxicity rating or class of 1, as listed
in Clinical Toxicology of Commercial Products, and
• Boiler water 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. and L3.3 if
they satisfy all of the following requirements.
• The heat transfer medium is potable water or
contains only substances which are recognized
as safe by the U.S. Food and Drug Administration.
• The pressure of the heat transfer medium is
maintained less than the normal minimum op-
erating pressure of the potable water system
NOTICE
• The equipment is permanently labeled to indi-
cate that only additives recognized as safe by
the FDA shall be used in the heat transfer me-
dium.
Other heat exchanger designs may be permitted where
approved by the Administrative Authority.
1.1.2 Operating Restrictions
• Maximum INSTINCT Combi DHW outlet tem-
perature is 149ºF, when mixing valve is installed.
• Maximum boiler water temperature rating is 210ºF.
• Maximum DWH working pressure is 150 psig.
• Maximum boiler (CH) working pressure is
50 psig.
• Water quality limitations (based on E.P.A Nation-
al Secondary Drinking Water Regulations):
ŪChloride, less than 150 ppm or mg/l
ŪpH value min. 6, max. 8
ŪTotal hardness 3 - 7 grains/gallon or 50-120
ppm or mg/l.
ŪTotal Dissolved Solids (TDS), less than 120
ppm or mg/l.
ŪIron less than 0.3 ppm or mg/l.
ŪAluminum, less than 0.2 ppm or mg/l.
ŪCopper, less than 1 ppm or mg/l.
ŪManganese, less than 0.05 ppm or mg/l.
ŪZinc, less than 5 ppm or mg/l.
BEST PRACTICE
In hard water areas (more than 7 grains of
hardness) soften the cold domestic supply wa-
ter to the appliance to prevent scaling.
• Any water conditioning system must be in-
stalled and maintained in accordance with
manufacturer’s specifications.
• Do not install the INSTINCT Combi in any
application if the boiler piping contains
non-oxygen barrier tubing or if the boiler
piping is considered an “open system”. Ex-
posing the internal circulator to oxygen
contamination will lead to premature fail-
ure and denial of the warranty.
NOTICE

2
CHAPTER 1
CHAPTER 1 - PRE-INSTALLATION REQUIREMENTS
1.2. Determining Product Location
The INSTINCT is certified for indoor, condi-
tioned space installations ONLY.
Before locating the INSTINCT check for convenient lo-
cations to:
• Heating system piping
• Venting
• Gas supply piping
• Electrical service
Ensure the INSTINCT location allows the combustion air/
vent piping to be routed directly through the building
and terminate properly outside with a minimum amount
of length and bends.
Ensure the area chosen for the installation of the INSTINCT
is free of any combustible materials, gasoline, or other
ammable liquids.
Failure to remove or maintain the area free
of combustible materials, gasoline, or oth-
er flammable liquids or vapors can result in
substantial property damage, serious injury,
or death.
Ensure the INSTINCT and its controls are protected from
dripping or spraying water during normal operation or
service.
The INSTINCT should be installed in a location so that
any water leaking from the boiler, piping connections,
or relief valve will not cause damage to the surrounding
area or any lower oors in the structure.
NOTICE
WARNING
1.3. Boiler Freeze Protection Feature
The CTRLMax boiler management system has a freeze
protection feature built in. This feature monitors the
boiler water temperature and responds as follows when
no call for heat is present:
• 46ºF [8ºC] Pump outputs congured to respond to
a CH1 Call are enabled.
• 42ºF [6ºC] Pump outputs congured to respond to
a CH1 or CH2 Call are enabled, Burner operates at
low re.
• 60ºF [15ºC] Freeze protection ends. Burner & all pumps
turn o after completing CH Post Pump Time.
• The boiler freeze protection feature is dis-
abled during a hard lockout. The burner
will not fire, but the circulators will operate.
• The boiler freeze protection feature is de-
signed to protect the boiler, not the heating
system. The boiler should be installed in a
primary/secondary piping arrangement if it
is installed in an unheated space or exposed
to water temperatures of 46ºF or less. Refer
to Chapter 4 for primary/secondary piping
and Chapter 10 for antifreeze guides.
• Failure to comply can result in minor prop-
erty damage, or injury.
1.4. Boiler Replacement
If the INSTINCT is replacing an existing boiler, the fol-
lowing items should be checked and corrected prior to
installation:
• Boiler piping leaks and corrosion.
• Proper location and sizing of the expansion
tank on the boiler heating loop.
• The existing vent system is appropriate for the
INSTINCT and it is correctly installed. Refer to
the INSTINCT Vent Supplement for the vent sys-
tem requirements.
• Amount and quality of propylene glycol within
the system, if applicable.
CAUTION

3
CHAPTER 1
CHAPTER 1 - PRE-INSTALLATION REQUIREMENTS
1.5. Recommended Clearances
The INSTINCT is approved for zero clearance to com-
bustibles, excluding vent and boiler piping.
• Boiler piping must be a minimum 1/4 inch from
combustible materials.
• Reference the INSTINCT Vent Supplement for
vent pipe clearance requirements.
It is recommended that the following clearances
be maintained for serviceability:
• Top boiler jacket - 24 inches [610 mm].
• Front - 24 inches [610 mm].
• Bottom boiler piping - 24 inches [610 mm].
• Rear - 0 inches
• Sides - 6 inches [153 mm]
When maintaining less than recommended
service clearances, some product labeling, in-
cluding the rating label, may become hidden
and unreadable.
• If the recommended clearances list-
ed above cannot be maintained
or the enclosure in which the boil-
er is installed is less than 70 cubic
feet, the space must be ventilated.
See Section 2.2 on page 6.
• When installing the INSTINCT in a con-
fined space, sufficient air must be provided
to allow, under normal operating condi-
tions, proper air flow around the product
to maintain ambient temperatures within
safe limits to comply with the National Fuel
Gas Code (NFPA 54 / ANSI Z223.1)
• Failure to comply with these instructions
can result in substantial property dam-
age, serious injury, or death.
BEST PRACTICE
NOTICE
WARNING
1.6. Residential Garage Installations
When installing the INSTINCT in a residential garage,
the following special precautions per NFPA 54/ANSI
Z223.1 must be taken:
• Mount the unit a minimum 18 inches [458 mm]
above the oor level of the garage. Ensure the
burner and ignition devices / controls are no less
than 18 inches [458 mm] above the oor level.
• Locate or protect the unit in a manner so it can-
not be damaged by a moving vehicle.

INTENTIONALLY LEFT BLANK

5
CHAPTER 2
CHAPTER 2 - COMBUSTION AIR & VENTING
2.1. Combustion Air Contamination
If the INSTINCT combustion air inlet is located
in an area likely to cause or contain contamina-
tion, or if products which could contaminate
the air cannot be removed, the combustion air
must be repiped and terminated at another lo-
cation. Contaminated combustion air will dam-
age the unit and its burner system, and can
result in substantial property damage, serious
injury, or death.
• Do not operate the INSTINCT if the com-
bustion air inlet is located near a laundry
room or pool facility. These areas will al-
ways contain hazardous contaminants.
• Pool, laundry, common household, and
hobby products often contain fluorine or
chlorine compounds. When these chem-
icals pass through the burner and vent
system, they can form strong acids. These
acids will corrode the heat exchanger,
burner components, and vent system,
causing serious damage and possible
flue gas spillage or water leakage into
the surrounding area.
• Please read the information listed below.
If contaminating chemicals are located
near the area of the combustion air inlet,
the installer must pipe the combustion
air inlet to an area free of these chemicals,
as indicated in Chapter 6 on page 38.
• Failure to comply with these instructions
will result in substantial property dam-
age, serious injury, or death.
• The INSTINCT boiler is classified as a
Category IV appliance. This utilizes un-
contaminated indoor or outdoor air for
applicance combustion. A direct vent
installation uses the outdoor air. Air sup-
ply, combusiton chamber, heat exchang-
er and evacuation of POC (products of
combustion) for this type of appliance is
sealed with respect to the room in which
the appliance is installed.
WARNING
DANGER
• An in-direct installation uses uncontami-
nated indoor air for appliance combustion.
• When the air for combustion is taken
from the room air grilles must be installed
by the contractor. The air grilles should
be sized in accordance with ANSI Z223.1/
NFPA54 and/or Natural Gas and Propane
Installation Code CAN/CSA B149.1.
• The grille providing air when taking air
directly from the room should be clear-
ly labelled; "AIR SUPPLY, DO NOT COVER
OR RESTRICT. FAILURE TO PROVIDE AD-
EQUATE AIR FOR COMBUSTION COULD
RESULT IN SERIOUS INJURY, OR DEATH."
Potential contaminating products
• Spray cans containing chloro/uorocarbons
• 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 clean-
ing 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 renishing areas and establishments
• New building construction
• Remodeling areas
• Garages with workshops

6
CHAPTER 2
CHAPTER 2 - COMBUSTION AIR & VENTING
2.2. Ventilation and Combustion Air Require-
ments - Direct Vent
A Direct Vent appliance utilizes uncontaminated out-
door air piped directly to the appliance for combustion.
For Direct Vent installations involving only the IN-
STINCT, in which the minimum service clearances are
maintained as listed in Section 1.5 on page 3, no
ventilation openings are required, but may be neces-
sary to equalize the air pressure with the outside.
For Direct Vent installations involving only the INSTINCT,
in which the minimum service clearances are not main-
tained as listed in Section 1.5 on page 3, the space
/ enclosure must provide two openings for ventilation.
The openings must be sized to provide 1 square inch of
free area per 1,000 BTUH of boiler input. The openings
shall be placed 12 inches from the top of the space and
12 inches from the oor of the space.
For installations in which the INSTINCT shares the
space with air movers (exhaust fan, clothes dryers,
replaces, etc.) and other combustion equipment (gas
or oil) the space must be provided with adequate air
openings to provide ventilation and combustion air
to the equipment. To properly size the ventilation /
combustion air openings, the installer must comply
with the National Fuel Gas Code (NFPA 54 / ANSI
Z223.1) for installations in the U.S. or CAN/CSA B149.1
for installations in Canada.
The space must be provided with ventilation
/ combustion air openings properly sized for
all make-up air requirements (exhaust fans,
clothes dryers, fireplaces, etc.) and the total
input of all appliances located in the same
space as the INSTINCT, excluding the input
of a Direct Vent INSTINCT which uses com-
bustion air directly from the outside, thus
additional free area for the openings is not
required. Failure to provide or properly size
the openings can result in substantial prop-
erty damage, serious injury, or death.
WARNING
2.3. Ventilation and Combustion Air Require-
ments - Category IV
A Category IV appliance utilizes uncontaminated indoor
or outdoor air surrounding the appliance for combus-
tion.
In order to reduce the potential risks associated
with indoor contaminates (see list in Section
2.1 on page 5), flammable vapors and tight
housing construction with little or no infiltration
air, it is recommended to pipe uncontaminated
combustion air directly from the outdoors to
the appliance. This practice also promotes high-
er system efficiency by reducing heated indoor
air from being exhausted from the house and
replaced by cold infiltration air into the house.
For installations in which the INSTINCT shares the
space with air movers (exhaust fan, clothes dryers,
replaces, etc.) and other combustion equipment (gas
or oil) the space must be provided with adequate air
openings to provide ventilation and combustion air
to the equipment. To properly size the ventilation /
combustion air openings, the installer must comply
with the National Fuel Gas Code (NFPA 54 / ANSI
Z223.1) for installations in the U.S. or CAN/ CSA B149.1
for installations in Canada.
The space must be provided with ventilation
/ combustion air openings properly sized for
all make-up air requirements (exhaust fans,
clothes dryers, fireplaces, etc.) and the to-
tal input of all appliances, including the IN-
STINCT when located in the same space. Fail-
ure to provide or properly size the openings
can result in substantial property damage,
serious injury, or death.
BEST PRACTICE
WARNING

DHWDemand
DHW
186°F
156°F
Target=186°F
Ion-ic
Gas Vent
Alternate
opening
location
Opening
7
CHAPTER 2
CHAPTER 2 - COMBUSTION AIR & VENTING
2.4. Methods of Accessing Combustion Air
Into A Space - Category IV
2.4.1. Indoor Combustion Air
• The methods listed in this chapter for accessing
Indoor Combustion Air assume that the infiltra-
tion rate is adequate and not less than .40 ACH.
• For infiltration rates less than .40 ACH, refer-
ence the National Fuel Gas Code (NFPA 54 /
ANSI Z223.1) for additional guidance.
• Indoor combustion air vent supply must be
installed with a minimum equivalent vent
length of 10 feet. Refer to Vent Supplement
for further guidance.
Opening Size and Location
Openings used to connect indoor spaces shall be sized and
located in accordance with the following, see Fig. 1 below :
• 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. The minimum dimen-
sion of air openings shall be not less than 3 inches.
NOTICE
2.4.2. Outdoor Combustion Air
Isolating the combustion appliance room from
the rest of the building and bringing in uncon-
taminated outside air for combustion and ven-
tilation is always preferred.
Opening Size and Location
The minimum dimension of air openings shall be not
less than 3 inches
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 as shown in Fig.
2 below. The equipment shall have clearances of
at least 1 inch from the sides and 6 in. from the
front of the appliance. The opening shall directly
communicate with the outdoors or shall commu-
nicate 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.
BEST PRACTICE
DHWDemand
DHW
186°F
156°F
Target=186°F
Ion-ic
Gas Vent
Openings
Fig. 1 - All Combustion Air from adjacent Indoor Spaces
through Indoor Combustion Openings
Fig. 2 - All Combustion Air from Outdoors
Through One Permanent Air Opening
• Combining spaces in dierent stories. The volumes of
spaces in dierent stories shall be considered as com-
municating spaces where such spaces are connected
by one or more openings in doors or oors having a
total minimum free area of 2 sq. in./1000 Btu/hr of to-
tal input rating of all gas utilization equipment.

DHWDemand
DHW
186°F
156°F
Target=186°F
Ion-ic
Fig. 3 - All Combustion Air from Outdoors Through
Ventilated Attic
DHWDemand
DHW
186°F
156°F
Target=186°F
Ion-ic
Fig. 4 - All Combustion Air from Outdoors Through
Horizontal Ducts
Gas Vent
Gas Vent
Outlet air
Inlet air duct
(ends 1ft (30 cm)
above oor)
Ventilation louvers
(each end of the attic)
Outlet air duct
Inlet air duct
8
CHAPTER 2
CHAPTER 2 - COMBUSTION AIR & VENTING
• Two Permanent Opening 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 out-
doors 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 below.
• 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 below.
2.4.3 Combination of Indoor and Outdoor
Combustion Air
Indoor Openings. Where used, openings connecting the in-
terior spaces shall comply with Section 2.4.1 on page 7.
Outdoor Opening(s) Location. Outdoor opening(s) shall
be located in accordance with Section 2.4.2 on page 7.
Outdoor Opening(s) Size. Outdoor opening(s) shall be
calculated in accordance with the following:
• The ratio of the interior spaces shall be the avail-
able 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) calculat-
ed in accordance with the above outdoor air chap-
ter multiplied by the reduction factor. The mini-
mum dimension of air openings shall not be less
than 3 in.
2.5. Combustion Air and Vent Piping
The INSTINCT requires a Category IV venting system,
which is designed for pressurized venting and conden-
sate.
The INSTINCT is certied as a Category IV or Direct Vent
(sealed combustion) appliance. A Category IV appliance
utilizes uncontaminated indoor or outdoor air surround-
ing the appliance for combustion. A Direct Vent appli-
ance utilizes uncontaminated outdoor air piped directly
to the appliance for combustion.
Do not install the INSTINCT into a common
vent with any other gas or oil appliances.
This will cause flue gas spillage or appliance
malfunction, which will result in substantial
property damage, serious injury, or death.
It is essential that the supply of air for com-
bustion is not blocked or restricted - this
could result in serious injury, or death.
DANGER
DANGER