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Solenne Instruction Manual
Installer: Affix these instructions adjacent to the boiler
Homeowner: Retain these instructions for future reference
WARNING
If the information in these instructions is not followed exactly, a fire or explosion may result, causing property
damage, personal injury or death.
-Do not store or use gasoline or other flammable vapors or 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 be performed by a qualified installer, service agency or the
gas supplier.
-Use of a properly calibrated electronic combustion analyzer MUST be used to
install and/or service this appliance.
-Professionally qualified personnel in accordance with current laws and
standards and in line with the manufacturer's instructions must install the appliance.
Approved in accordance with:
ANSI Z21.13b-2010 / CSA 4.9b (2010) Low Pressure Boiler
Manufactured/Distributed by : Granby Furnaces Inc.
12118 Hwy 209, Parrsboro, NS, Canada
Condensing Direct Vent Gas Boiler
PCH 50B-H
170,000 BTU INPUT
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Related Manuals for PENSOTTI Solenne PCH50B-H
Summary of Contents for PENSOTTI Solenne PCH50B-H
- Page 1 Solenne Instruction Manual Installer: Affix these instructions adjacent to the boiler Homeowner: Retain these instructions for future reference PCH 50B-H Condensing Direct Vent Gas Boiler 170,000 BTU INPUT WARNING If the information in these instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury or death.
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Page 2: Table Of Contents
1. General information 1.1 General warnings 1.2 Product conformity 2. Technical characteristics 2.1 Technical data 2.2 Dimensions 2.3 Internal parts of the boiler 2.4 Water circuit 2.5 Circulation pump head/flow graph 2.6 Printed circuit board – Technical characteristics 2.7 Control panel 2.8 INFO Menu display 3. - Page 3 Pages 5. Regulating the appliance (qualified personnel) 5.1 Parameters table 5.2 Accessing the parameters menu 5.3 Setting the parameters 5.4 Gas Data 5.5 Converting the Boiler to a Different Gas Type 5.6 Regulating the gas valve offset 6. Maintenance (qualified personnel) 6.1 General warnings 6.2 Maintenance 6.3 Annual Maintenance...
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Page 4: General Information
The appliance should be located in an area where leakage within the unit or at its connections will not result in damage to the area adjacent to the appliance or to lower floors of the structure. PENSOTTI will not be responsible for any damage resulting from leaking if adequate drainage is not provided. - Page 5 Check the Rating Plate PENSOTTI units come from the factory configured for use with natural gas. Prior to installation, check the rating plate of the boiler to ensure the unit matches gas type, gas pressure, water pressure and electrical supply. If the unit does not match the requirements, do not install.
- Page 6 GENERAL INFORMATION The “operating instructions” chapter of this manual must be read carefully as it provides information on the operation and the operating limits of the appliance. After the removal of all the packaging, check that the appliance has not been damaged. In case of doubt, do not attempt to use the product but refer to the supplier.
- Page 7 Installers must abide by local code requirements regarding the installation of CO detectors. The use of a certified carbon monoxide detector is recommended but not required by PENSOTTI. “In the State of Massachusetts only”...
- Page 8 GENERAL INFORMATION...
- Page 9 GENERAL INFORMATION...
- Page 10 GENERAL INFORMATION...
- Page 11 GENERAL INFORMATION...
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Page 12: Product Conformity
GENERAL INFORMATION 1.2 Product conformity All Granby Heating Products LLC boilers are ETL certified and possess technical and functional characteristics that comply with the following standards: Gas fired Low Pressure Hot Water Boiler: American National Standard/CSA Standard for Gas Fired Low Pressure Steam and Hot Water Boiler. Certifies to ANSI STD Z21.13b, certified to CSA STD 4.9b. -
Page 13: Technical Characteristics
TECHNICAL CHARACTERISTCS TECHNICAL CHARACTERISTICS Technical data Model PCH 50B-H CE Certification n° 0694CO7385 Appliance Type B23p-B33-C13-C33-C43-C53-C63-C83-C93 Appliance Category II2H3B/P kW – BTU 50 – 170600 Heat Input max kW – BTU 12 - 40900 Heat Input min AFUE 91.2 Efficiency (Full load) - 122/86°F Efficiency (Full load) - 176/140°F 87.7 Efficiency Partial load - 122/86°F... -
Page 14: Dimensions
TECHNICAL CHARACTERISTCS 2.2 Dimensions... -
Page 15: Internal Parts Of The Boiler
TECHNICAL CHARACTERISTCS 2.3 Internal parts of the boiler LEGEND AUTOMATIC AIR VENT VALVE SAFETY THERMOFUSE EXPANSION VESSEL PREMIX BURNER UNIT (GAS MANIFOLD + BURNER) IONISATION ELECTRODE HEATING SENSOR HEATING SAFETY THERMOSTAT PUMP 10. CONDENSATE TRAP 11. ELECTRONIC GAS VALVE 12. AIR PRESSURE SWITCH 13. -
Page 16: Water Circuit
TECHNICAL CHARACTERISTCS 2.4 Water circuit LEGEND R. HEATING RETURN C. DOMESTIC HOT WATER OUTLET G. GAS INLET SC. CONDENSATE DRAIN F. COLD WATER INLET A. HEATING FORWARD RB. REMOTE D.H.W. CYLINDER RETURN AB. REMOTE D.H.W. CYLINDER FLOW 1. FUMES SAFETY THERMOFUSE 216°F (102°C) 2. -
Page 17: Circulation Pump Head/Flow Graph
TECHNICAL CHARACTERISTCS 2.5 Circulation pump head/flow graph 2.5.1 Circulation pump typical curves. 19.7 16.4 13.1 Water flow [US gpm] Hydraulic pressure losses (Pressure loss mbar – Flow l/h) 2.5.2 16 .4 16 .4 Water flow [US gpm ] Hydraulic pressure losses - Individual boiler Hydraulic pressure losses - Individual boiler + storage cylinder installation... -
Page 18: Printed Circuit Board - Technical Characteristics
INSTALLATION INSTRUCTION ® 2.6 DIGITECH CS Printed Circuit Board (MIAH4) Technical characteristics Adjustments for service personnel only • Standard (95-185°F) / reduced (77-113°F) central heating temperature • Water hammer prevention function • Central Heating timer - (adjustable from 0 to 7.5 minutes) •... -
Page 19: Info Menu Display
INSTALLATION INSTRUCTION LCD DISPLAY ICONS’ KEY PARAMETER NUMBER INFORMATION PARAMETERS PROGRAMMING MODE ON SOLAR PCB CONNECTION INFORMATION / SOLAR PANEL TEMPERATURE DISPLAY (d6) SOLAR PUMP ON STORAGE CYLINDER LOW LEVEL TEMPERATURE VISUALIZATION (d7) / STORAGE CYLINDER HIGH LEVEL TEMPERATURE VISUALIZATION (d8) OUTDOOR TEMPERATURE SENSOR CONNECTED TEMPERATURE / SET POINT / PARAMETER VALUE INFORMATION... -
Page 20: Installation (Qualified Personnel)
INSTALLATION INSTRUCTION INSTALLATION (qualified personnel) Reference standard Install in accordance with local building and electrical codes. Failure to install a gas appliance correctly and in accordance with the above norms could lead to prosecution. It is in the interest of the installer and safety that the codes are complied with. The manufacturer’s instructions form an integral part of the installation and should be left with the appliance but do not over ride in anyway statutory obligations. -
Page 21: Unpacking
INSTALLATION INSTRUCTION 3.2 Unpacking • The materials (cardboard) used for packing the appliance are fully recyclable. • It is recommended that the packing material is only removed prior to installing the boiler. The manufacturer will not be held responsible for damage caused by incorrect storage of the product. -
Page 22: Installation Boiler
INSTALLATION INSTRUCTION 3.3 Installing the boiler The appliance must be installed exclusively on a vertical solid wall capable of supporting its weight. • The boiler must be installed on a plumb/level surface to avoid improper operation. • The boiler should be fitted within the building unless otherwise protected by a suitable enclosure i.e. -
Page 23: Fixing The Boiler To Wall
INSTALLATION INSTRUCTION Fixing the boiler to wall The appliance must be installed exclusively on a flat vertical solid wall capable of supporting its weight. To avoid the condensate stagnation within the condensing exchanger, make sure that the boiler is slightly inclined to the rear (Slope = 4°) to allow the correct draining of the condensate. -
Page 24: Water Connections
INSTALLATION INSTRUCTION 3.5 Water connections In order to safeguard the heat exchanger and circulation pump, especially in case of appliance replacement, it is recommended that the system is hot-flushed to remove any impurities (especially oil and grease) from the pipes and radiators. -
Page 25: Domestic Hot Water Circuit
INSTALLATION INSTRUCTION 3.6 Domestic Hot Water Circuit The cold water supply pressure at the inlet to the boiler must be between 7.25 psi (0.5 bar) and 87 psi (6 bar). In areas with higher water inlet pressure a pressure reducing valve must be fitted before the boiler. The frequency of the heat exchanger coil cleaning depends on the hardness of the main water supply and the presence of residual solids or impurities, which are often present in the case of a new installation. - Page 26 INSTALLATION INSTRUCTION These piping diagrams are examples for illustrative purposes only. They are not designed to be used as a piping schematic. *Max. 4 pipe diameters between tees *External Low Water Cut-Off if required by local code *Tempering Valve May be Required – Consult Local Codes *Must leave at least 15”...
- Page 27 1 1/2 ” Copper PCH 50/B-H 1 1/2 ” Copper 1 1/2 ” Copper Pensotti requires the installation of a pressure reducing valve & backflow preventer with all Solenne Series boilers. Dirt / Scale Separation Along with the application of our Fernox...
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Page 28: Condensate Drain
INSTALLATION INSTRUCTION PROBL MUST THEN BE CORRECTED BEFORE THE BO 3.8 Condensate drain PUT BACK IN OPERATION. FAILURE TO INSTALL THE CONDENSATE Termination to an internal soil and vent pipe DISCHARGE PIPEWORK CORRECTLY WILL AFFECT THE RELIABLE OPERATION OF THE DUAL Boiler PURPOSE BOILER. -
Page 29: Gas Connections
Until pressure testing of the main gas supply line is completed, ensure the gas line to the PENSOTTI Boiler is disconnected to avoid any damage to the boiler. The appliance and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 0.5 psi (3.5 kPa).. - Page 30 INSTALLATION INSTRUCTION Natural Gas Pipe Sizing Chart Size of Schd. 40 Black Iron Pipe in Inches Length of Pipe in Feet 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 1237 2259 1610 1335 1143 1041 Natural Gas flow is given in thousands of BTU/hr. - One cubic foot of natural gas = 1000 BTU Nominal pressure at the burner for Natural Gas is 3.5"...
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Page 31: Electrical Connections
131VAC Max or 96VAC Min. Damage caused by excessive voltage is not covered under warranty. DO NOT connect 220-240VAC and any other voltage to this PENSOTTI Boiler. This will damage the boiler and void the warranty. Do not disconnect the power supply when the unit is in normal operation. - Page 32 INSTALLATION INSTRUCTION CAUTION : Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. The connection to the main power supply must be carried out by professionally qualified electrical personnel, registered in accordance with current legislation and local authorities.
- Page 33 INSTALLATION INSTRUCTION Remote control connection Connect the power supply to the terminal board inside the control panel as follows: a. Switch off the power supply at service switch or breaker. b. Remove the front case panel of the boiler. c. Slacken the screws and remove plate A (see fig. 1). d.
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Page 34: Venting
All PENSOTTI b o i l e r s use a 3 / 5” co n ce nt r ic ve n t or a 2 p ip e s syst em t h a t u ses a 3”... - Page 35 INSTALLATION INSTRUCTION Venting Pictures & Illustrations...
- Page 36 INSTALLATION INSTRUCTION Part No. PAHVK - Horizontal Vent Kit...
- Page 37 INSTALLATION INSTRUCTION 12” Clearance Suggested from The Top of The Appliance to Ceiling 10” 7 ¾” Top of Appliance to Center Line of Hole...
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Page 38: Pipe Venting System
INSTALLATION INSTRUCTION 3.12 2 Pipes Venting system Pictures & Illustrations The two pipes direct vent system can be installed in one of the following configurations. 1. Air Intake & Exhaust Pipes on an outside horizontal wall (intake and vent adjacent) 2. - Page 39 INSTALLATION INSTRUCTION See the Installation guideline diagram on the next page. Maximum allowable equivalent vent length – Horizontal and Vertical systems. Boiler Model Number Vent Size Maximum Combined Equivalent length * Vent Maximum Combined Equivalent length * Size 3” 190’’ (95” air intake + 95’ exhaust) 2”...
- Page 40 INSTALLATION INSTRUCTION...
- Page 41 INSTALLATION INSTRUCTION Follow all venting manufacturers’ guidelines for low-profile terminations.
- Page 42 INSTALLATION INSTRUCTION The termination shall be located no less than 48” above or to the side of the exhaust for any other oil, gas or solid fuel appliance...
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Page 43: Commissioning The Appliance (Qualified Personnel)
REEGULATION INSTRUCTION 4 COMMISSIONING THE APPLIANCE General warnings The following operations must be carried out by professionally qualified personnel, registered in accordance with current legislation. Use of a properly calibrated electronic combustion analyzer MUST be used when installing, servicing or converting this Boiler from Natural Gas to LP or from LP to Natural Gas. The boiler leaves the factory pre-set and tested for burning Natural Gas. -
Page 44: Filling The System
REEGULATION INSTRUCTION 4.2 Filling the system A pressure reducing valve and backflow preventer must be installed. Use only clean tap water to fill the system. Before switching the power supply ON, fill the system as follows: • Check that the circulating pump runs freely; •... -
Page 45: Flushing The System
All systems must be thoroughly drained and flushed using additives – corrosion inhibitors and flushing agents/descalers. Pensotti requires the use of the supplied Fernox Commissioning Kit or individual containers of Fernox F3 or F5 cleaner and F1 protector. Follow Fernox installation instructions. Failure to use Fernox F3 or F5 cleaner and F1 protector could void the warranty for all waterside components. -
Page 46: Starting Up The Boiler
REGULATION INSTRUCTIONS 4.5 Starting up the boiler Once the system has been filled, proceed as follows: • Verify the internal circulator rotates freely. Table n°1 • Check that the exhaust duct is free from obstructions Gas Type CO2% and correctly connected to the flue exhaust system; Natural Gas –... -
Page 47: Regulating The Appliance (Qualified Personnel)
REGULATION INSTRUCTIONS 5. REGULATING THE APPLIANCE 5.1 Parameters table PARAMETER PARAMETER TYPE OF OPERATION FUNCTION N° VALUE 01 = 18 KW 04 = 34 kW Selects the model of boiler 00-06 05 = 50 kW All other numbers N/A 00 = N/A 01 = PCC 34 02 = PCI 18/8 &... - Page 48 REGULATION INSTRUCTIONS PARAMETER PARAMETER TYPE OF OPERATION FUNCTION N° VALUE Sets the 0-10V industrial bus piloting. 00-02 00 = Disabled (default) Not applicable to this model. Central heating minimum set point 68 - 104 Displayed in °F Central heating maximum set point 104 - 194 Displayed in °F D.H.W maximum set point...
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Page 49: Accessing The Parameters Menu
MAINTENANCE INSTRUCTIONS 5.2 Accessing the parameters menu To modify the pre-set values of the parameters reported in the previous table, open the parameter settings menu as follows: 1. Place mode selection button ‘ ’ in the OFF position, the symbol will be displayed. 2. - Page 50 MAINTENANCE INSTRUCTIONS Use ‘ ’ and ‘ ’ buttons (D.H.W temperature setting) to modify the value of the parameter to the desired setting. Press mode selection button ‘ ’ to confirm and to save the new setting. The value will blink several times to confirm it is saved.
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Page 51: Setting The Parameters
MAINTENANCE INSTRUCTIONS 5.3 Setting the parameters enter the parameters menu, follow the previously described procedure (see paragraph 5.2 ‘Accessing the parameters menu’ - steps 1-8). PARAMETER P00 – SELECTS THE MODEL OF BOILER 01 = 18 KW 04 = 34 kW 05 = 50 kW PARAMETER P01 –... - Page 52 MAINTENANCE INSTRUCTIONS PARAMETER P08 – CENTRAL HEATING PUMP OVERRUN TIMER This parameter is used to set the pump functioning time, in heating mode, after switching off the main burner for the intervention of the room thermostat displayed in multiples of 5 seconds min = 00 max = 90 For ex.:...
- Page 53 MAINTENANCE INSTRUCTIONS PARAMETER P15 – LEGIONELLA PREVENTION FUNCTION (For storage boilers only) This parameter will turn the legionella prevention function On or Off. When enabled the storage tank will be heated to a temperature in excess of 140°F once per week automatically. When in this function the code “F28” will be displayed on the screen.
- Page 54 MAINTENANCE INSTRUCTIONS PARAMETER P20 – CENTRAL HEATING MAXIMUM SET POINT This parameter is used to set the central heating maximum temperature the user may increase to. The user will be unable to increase the maximum heating temperature above this set number. min = 104°F max = 194°F PARAMETER P21 –...
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Page 55: Gas Data
MAINTENANCE INSTRUCTIONS 5.4 Gas data Technical data tables Table no.1 - CO Values Gas type Natural Gas – Gas A 9.37 Liquid Propane Gas – Gas E 10.28 Table no.2 - Frequency Gas type Minimum (Hz) Maximum (Hz) Natural Gas – Gas A Liquid Propane Gas –... -
Page 56: Converting The Boiler To A Different Gas Type
MAINTENANCE INSTRUCTIONS 5.5 Converting the boiler to a different gas type The conversion of this combination boiler from burning natural gas to LPG, or vice versa, must be carried out exclusively by professionally qualified personnel, registered in accordance with current legislation. It is necessary to use a properly calibrated, electronic combustion analyser. -
Page 57: Regulating The Gas Valve Offset
MAINTENANCE INSTRUCTIONS 5.6 Regulating the gas valve offset When replacing the gas valve, it is necessary to regulate the offset on the new gas valve to guarantee a correct operation of the boiler. Instructions as follows: Fig. 1 – Disconnect the silicon pipe from its connection onto the venturi air intake point. -
Page 58: Maintenance (Qualified Personnel)
Make sure all the venting connections/joints are tight and in good condition where visible. Clean the burner cylinder using a non-metal brush and without damaging the ceramic fiber. Clean the heat exchanger using a recommended detergent from PENSOTTI for the stainless steel. Do not wet the ceramic fiber coating. -
Page 59: Annual Maintenance
MAINTENANCE INSTRUCTIONS 6.3 Annual Maintenance To ensure that the boiler operates efficiently and safely, it is required that the appliance is inspected by a suitably competent technician at least once a year. IMPORTANT – Personal protective equipment is recommended. The insulating material on the inside of the burner door and the back of the combustion chamber contain refractory ceramic fibers that should not be handled without personal protective equipment. - Page 60 MAINTENANCE INSTRUCTIONS Years 1,3,5, etc. • Visual inspection of the appliance, venting, electrical, gas and near boiler hydronic piping • Are the venting system joints properly secured together using fasteners and/or locking devices? Properly supported? • Visual inspection of the vent termination outside of the building. Check for obstructions that would impede flue gas and combustion air movement.
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Page 61: Accessing The Boiler
MAINTENANCE INSTRUCTIONS Accessing the boiler All maintenance operations require one or more of the boiler casing panels to be removed. The side panels can only be removed after the front panel has been removed. Front panel: ▪ Remove the fixing screws at the lower edge of the front panel. -
Page 62: Draining The Central Heating And Domestic Hot Water System
System winterization (non-operative system) Because it may be impossible to completely drain the boilers heating circuit, D.H.W circuit and distribution system. Pensotti recommends the introduction of the proper type antifreeze to protect these systems from freezing damage. Glycol must not be used in Domestic Hot Water applications. -
Page 63: Maintenance Operations
MAINTENANCE INSTRUCTIONS 6.7 Maintenance operations primary Before carrying out any cleaning or part heat replacement operations, ALWAYS turn off the ELECTRICITY, WATER and GAS supplies to the boiler. Granby Heating Products, LLC will not be held responsible for damage to any of the boiler’s components caused by non-compliance with this instruction. - Page 64 MAINTENANCE INSTRUCTIONS Part replacement Ignition and/or flame detection electrodes (see fig. 2) • Un-Plug the electrode wires; ignition • Slacken the fixing screws; electrode • Remove the electrodes. When fitting the new ones, check that the seals are not damaged. Replace if necessary; •...
- Page 65 MAINTENANCE INSTRUCTIONS Safety thermostat (see fig. 1) • Disconnect the connecting wire; • Unscrew the fixing screws and remove the thermostat; • Replace the thermostat and re-assemble the components following the above procedure in reverse order; • Switch on the electricity, water and gas supplies and restart the appliance.
- Page 66 MAINTENANCE INSTRUCTIONS Electric fan (see fig. 1) • Remove and dismantle the entire burner unit (see “Cleaning the burner unit”). • Use an 8 mm wrench to unscrew the four venturi nuts securing the electric fan to the gas manifold and then remove the electric fan, noting the positions of the washer.
- Page 67 MAINTENANCE INSTRUCTIONS Diverter valve (see fig. 1) Replacing the motor • Unscrew the fixing screws securing the transparent cover of the diverter valve and remove the cover; • Unscrew the two motor fixing screws and disconnect the wires; • Replace the motor and re-assemble the components following the above procedure in reverse order;...
- Page 68 MAINTENANCE INSTRUCTIONS Primary heat exchanger (see fig. 1) • Close the shut-off valves and drain the central heating circuit of the boiler; primary heat flue connection • Switch off the power and gas supply to the exchanger chamber boiler; • Remove and dismantle the entire burner unit (see “Cleaning the condensation module and burner unit”);...
- Page 69 MAINTENANCE INSTRUCTIONS Expansion vessel (see fig. 2) • Close the shut-off valves and drain the central heating circuit of the boiler. • Use a 19 mm wrench to unscrew the pipe coupling to the vessel. • Unscrew the fixing screws and remove the upper mounting bracket.
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Page 70: Wiring Diagrams
MAINTENANCE INSTRUCTIONS 6.8 Wiring diagrams – DIGITECH ® CS Printed Circuit Board (MIAH4) ER: Ionisation electrode EA: Ignition electrode Circulating pump VD: Diverter valve VG: Gas valve PA: Air pressure switch TRA:Ignition transformer TF: Thermo Fuse 216 °F (102 °C) TF max: Thermo Fuse 320 °F (160 °C) TS: Safety thermostat Pacq: Water pressure switch... - Page 71 MAINTENANCE INSTRUCTIONS Connecting the room thermostat (Option) Connect the power supply to the terminal board located onto the control panel as follows: a. switch off the power supply at the main switch; b. remove the front case panel of the boiler. (see paragraph ‘6.3 Accessing the boiler’); c.
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Page 72: Troubleshooting
MAINTENANCE INSTRUCTIONS 6.9 Troubleshooting ERROR PROBLEM POSSIBLE CAUSE REMEDY RESET CODE WITHOUT FLAME IGNITION CHECK MAIN GAS NO GAS. SUPPLY. IGNITION ELECTRODE REPLACE PART. BROKEN OR EARTHED. REPLACE PART. GAS VALVE MALFUNCTION. SET THE IGNITION IGNITION SEQUENCE SET TOO SEQUENCE. LOW. - Page 73 MAINTENANCE INSTRUCTIONS ERROR PROBLEM POSSIBLE CAUSE REMEDY RESET CODE PRIMARY OR CLEAN OR REPLACE SECONDARY HEAT EXCHANGER PART. INADEQUATE CIRCULATION Automatic OBSTRUCTED. CLEAN OR REPLACE PUMP MALFUNCTION OR PART. PUMP IMPELLER DIRTY. MICROPROCESSOR THE PCB RESETS GENERAL PCB MALFUNCTION: IT Automatic AUTOMATICALLY THE MALFUNCTION...
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Page 74: Function Codes
MAINTENANCE INSTRUCTIONS 6.10 Function codes Code Function Description Pressing ‘ ’ button for 7 seconds the Flue test function is enabled. Flue test function Pressing the boiler Off button the function is disabled. active The Flue test function operates the boiler at the maximum heating pressure (Chimney-Sweeper) for 15 minutes without any modulation. -
Page 75: Sequence Of Operations
6.12 Sequence of operations... - Page 80 GRANBY HEATING PRODUCTS LLC 34 Coffin Ave Brewer, ME 04412 Product Support: Note: Technical support will only be provided to licensed gas installers or service personnel with proper credentials. Hours: 8am – 4pm EST M-F info@hitechheat.com Visit www.hitechheat.com for helpful troubleshooting information.