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Phoenix

Light Commercial 

Gas Fired Water Heaters

Installation

Start-Up

Maintenance

Parts

Warranty

PH76* Models

* “LP” Denotes Propane Gas
“S” Denotes Solar Model

This manual must only be used by a qualified installer / service technician. Read all instructions in this manual before installing. 

Perform steps in the given order. Failure to do so could result in substantial property damage, severe personal injury, or death.

HTP reserves the right to make product changes or updates without notice and will not be held liable for typographical errors 

in literature.

NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.

272 Duchaine Blvd.

New Bedford, MA 02745

www.htproducts.com 

lp-441 Rev. 002 Rel. 008 Date 8.23.18

The surfaces of these products contacted by potable (consumable) water contain less than 0.25% lead by weight as required 

by the Safe Drinking Water Act, Section 1417.

Improper installation, adjustment, alteration, service, or maintenance could void product warranty and cause property 

damage, severe personal injury, or death.
California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer, birth 

defects, or other reproductive harm.

Summary of Contents for Phoenix 7100P-124

Page 1: ...not be held liable for typographical errors in literature NOTE TO CONSUMER PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE 272 Duchaine Blvd New Bedford MA 02745 www htproducts com lp 441 Rev 002 R...

Page 2: ...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...

Page 3: ...mustbeinstalledbyqualifiedandlicensedpersonnel The installer should be guided by the instructions furnished with the water heater and by local codes and utility company requirements In the absence of...

Page 4: ...the Box 6 B How the Heater Operates 6 C Optional Equipment 6 Part 3 Prepare the Water Heater 6 A Locating the Water Heater 7 B Leveling 7 C Clearances for Service Access 8 D Residential Garage and Cl...

Page 5: ...table water ONLY Using this water heater to heat non potable fluid WILL VOID product warranty and could result in property damage personal injury or death Do not use this water heater for anything oth...

Page 6: ...system monitors water temperature and adjusts fan speed to regulate the heater s energy output This allows the unit to deliver the required amount of heated energy and nothing more Burner Constructed...

Page 7: ...ontrol system components must be protected from dripping water during operation and service 5 If the heater is to replace an existing heater check for and correct any existing system problems such as...

Page 8: ...nt termination assembly Doing so could result in severe personal injury or death Do not attempt to vent this water heater by any means other than those described in this manual Doing so will void the...

Page 9: ...space such space should be provided with two permanent openings one located 6 15cm below the space ceiling the other 6 15cm above the space floor Each opening should have a free area of one square inc...

Page 10: ...corrosive chemicals or elements that can damage the heat exchanger Potable water is defined as drinkable water supplied from utility or well water in compliance with EPA secondary maximum contaminant...

Page 11: ...quired by ANSI Part 4 Piping Failure to follow the instructions in this section WILL VOID the warranty and may result in property damage severe personal injury or death DO NOT pipe this water heater w...

Page 12: ...The expansion tank must be located as shown in Applications this manual or following recognized design methods See expansion tank manufacturer s instructions for details Use a backflow preventer speci...

Page 13: ...temperature as low as possible Feel water before bathing or showering If thermostatic valves are required use devices specifically designed for such purpose Install these devices in accordancewithins...

Page 14: ...all equipment and detailing required by local codes In Massachusetts you must install a vacuum relief valve per 248 CMR 6 Mixing valve application is optional but recommended to help prevent scalding...

Page 15: ...thout water will result in dry firing NOTES FOR AIR HANDLER APPLICATION 1 MASSACHUSETTS STATE PLUMBING CODE REQUIRES A DISTANCE NO GREATER THAN 50 FEET FROM THE WATER HEATER TO THE FAN COIL IN THE AIR...

Page 16: ...state provincial and national codes for best practices to prevent condensate freezing in the exhaust vent pipe system Improper seating of vent pipe gaskets can cause eventual gasket failure and exhaus...

Page 17: ...p terminations clear could result in property damage severe personal injury or death The exhaust and intake components installed with this water heater must be used for near water heater piping BEFORE...

Page 18: ...t may be opened Direct Vent 1 foot 3 feet 91 cm Power Vent 4 ft below or to side of opening 1 ft above opening C Clearance to permanently closed window D Vertical clearance to ventilated soffit locate...

Page 19: ...piping may be used on air inlet piping only 2 Remove all burrs and debris from joints and fittings 3 When using PVC or CPVC pipe all joints must be properly cleaned primed and cemented Use only cemen...

Page 20: ...y three feet for concealed piping b At all changes of direction c On each side of a penetration through a partition wall or ceiling and d The labels shall be black lettering that i Indicates that the...

Page 21: ...ing support brackets on vent piping the first bracket must be within 1 foot of the water heater and the balance of 4 foot intervals on the vent pipe Venting must be readily accessible for visual inspe...

Page 22: ...IDE VIEW LP 325 PP EXHAUST AIR INTAKE F E D C EXHAUST AIR INTAKE B Figure 10 Horizontal Snorkel Venting UNBALANCED VENTING WITH TEE INTAKE AND COUPLING EXHAUST All vent pipes must be glued properly su...

Page 23: ...Concentric Vent Kit installation manual LP 166 for further information on venting with the optional concentric vent kits Concentric venting through an existing system must run vertically through the...

Page 24: ...idered part of the space Confined space is space with volume less than 50 cubic feet per 1 000 Btu hour 4 8 cubic meters per kW of the total input rating of all fuel burning appliances installed in th...

Page 25: ...rom 3 2 to 4 5 Install a neutralizing filter if required by local codes Power to the optional condensate pump is continuous When the water heater is powered off the condensate pump will remain on It i...

Page 26: ...lp 441 Rev 002 Rel 008 Date 8 23 18 26 1 2 3 4 Figure 16 Removing and Installing the Condensate Neutralizer Water Heaters Manufactured Prior to 9 27 17 ONLY...

Page 27: ...ns are included with the outdoor sensor to correctly mount the sensor on the exterior surface of the building It is preferable to mount the sensor on the north side in an area that will not be affecte...

Page 28: ...ing plate LP for liquefied petroleum propane gas or Nat for natural or city gas All gas connections must be approved by the local gas supplier or utility in addition to the governing authority prior t...

Page 29: ...being installed If there are additional gas appliances on the main supply line size the supply line for the maximum total COMBINED BTU Hr draw of the appliances This will ensure the supply line is siz...

Page 30: ...s individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of the system at pressures greater than psi 3 5 kPa 2 The water heater must be isolated fr...

Page 31: ...t in increments of two degrees After choosing the setpoint wait five seconds The screen will return to normal operation and the setpoint will be stored 70 160 120 Outdoor Reset Curve Enabling Outdoor...

Page 32: ...ume water heater operation 3 Putting the Water Heater in ECO Mode Press to put the water heater in ECO Mode Press to resume normal operation 4 Changing User Setpoint Press either or once to change the...

Page 33: ...mum tank temperature for reset curve 70 160 140 P10 Warm Weather Shutdown Temperature o C o F Outdoor temperatures greater than this value return the tank target temperature to the User Setpoint 50 10...

Page 34: ...een cleared Press at any History Mode screens to return to the upper level menu Part 10 Start Up Procedure FOR YOUR OWN SAFETY READ BEFORE OPERATING 1 This water heater does not have a pilot It is equ...

Page 35: ...maximum of 15 minutes 8 Test Mode can be disabled by pressing Combustion Settings on All Models Fan Speed Natural Gas NG Propane LP Low Ignition High Low Ignition High Carbon Monoxide CO PPM 1 10 2 1...

Page 36: ...result in property damage serious personal injury or death Such damages ARE NOT covered by water heater warranty Part 12 Troubleshooting A Error Code An error code may occur during installation of the...

Page 37: ...the sensor is 40o F 122o F 2 Check the Outdoor Temperature Sensor Ensure it is properly wired and connected and that there are no breaks cuts or other visible issues with the sensor wire 3 Use an ohmm...

Page 38: ...ault code occurs again reset the water heater and 3 When water heater attempts to fire check voltage at the gas valve connector If there is voltage but no gas pressure on the outlet side of the valve...

Page 39: ...erve water heater operation If fault code occurs again 3 Check the Dual Temperature Sensor Ensure it is properly wired to the control and that there are no breaks cuts or other visible issues with the...

Page 40: ...ons been installed at least one foot above exterior grade and one foot above normal snow accumulation level Is vent piping properly supported Has vent piping been checked for leaks Has the exhaust ven...

Page 41: ...er that has not been used for a long period of time generally two weeks or more When opening a hot water faucet in a system that has been out of use for a time keep all ignition sources electrical app...

Page 42: ...ctrode Clean Set gap at 1 4 Clean probe with plumbers cloth to remove oxides Combination Ignitor and Flame Probe Check ionization in uA i04 in the Inquiry Mode menu Record high fire and low fire Clean...

Page 43: ...T P A D A 4 8 6 0 P 0 0 7 7 S P M A L C w E S O H E T A S N E D N O C 5 4 4 0 P 0 0 1 7 B R A B X E L A M T P N 2 1 G N I T T I F 6 2 0 0 P 0 0 7 7 2 1 T U N K C O L 7 7 7 0 P 0 0 7 7 2 1 X 2 1 R E T...

Page 44: ...0P 004 27 CONDENSATE HOSE w CLAMPS 7700P 068 28 FITTING 1 2 NPT MALE X BARB 7100P 044 29 LOCKNUT 1 2 7700P 002 30 ADAPTER 1 2 X 1 2 7700P 077 31 FLUE TEMPERATURE SENSOR 7450P 026 32 PRESSURE SWITCH 77...

Page 45: ...of the water heater and NOT the date of installation of the water heater F This warranty extends only to water heaters utilized in water heating applications that have been properly installed by quali...

Page 46: ...whenever possible d A picture of the piping near the product e For gas fired products a picture of the venting including how it exits the building All claims will be reviewed by HTP within three 3 bu...

Page 47: ...lp 441 Rev 002 Rel 008 Date 8 23 18 47 Maintenance Notes...

Page 48: ...allation Installation Address Product Name Serial Number s Comments Installer s Code Name Installers Phone Number Signed by Installer Signed by Customer Installation Notes IMPORTANT Customer Please on...

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