Table of Contents
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CONTENTS
Instruction Manual
Installer: Affix these instructions adjacent to the boiler
Homeowner: Retain these instructions for future reference
PCH 34B-H
Condensing Direct Vent Gas Boiler
116,000 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.
Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or
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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.
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
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Summary of Contents for PENSOTTI PCH 34B-H
- Page 1 CONTENTS Instruction Manual Installer: Affix these instructions adjacent to the boiler Homeowner: Retain these instructions for future reference PCH 34B-H Condensing Direct Vent Gas Boiler 116,000 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
CONTENTS Pages 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 3. - Page 3 CONTENTS Pages 6. Maintenance (authorized personnel) 6.1 General warnings 6.2 Maintenance 6.3 Boiler inspection 6.4 Accessing the boiler 6.5 Flushing out the primary side 6.6 Draining the central heating and domestic hot water system 6.7 Maintenance operations 6.8 Wiring diagrams 6.9 D.H.W sensor connection 6.10 Troubleshooting 6.11 Diagnostics...
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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. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. - 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 Many jurisdictions require the installation of carbon monoxide detectors in building where a side wall vented fuel burning appliance is installed. 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/Pensotti 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 W ater Boiler . -
Page 13: Technical Characteristics
TECHNICAL CHARACTERISTCS 2. TECHNICAL CHARACTERISTICS 2.1 Technical data Model PCH 34B-H CE Certification n° 0694BN3485 Appliance Type B23p-B33-C13-C33-C43-C53-C63-C83-C93 Appliance Category II2H3B/P kW - BTU/hr 34 - 116013 Heat Input max kW - BTU/hr 10 - 34121 Heat Input min Heat Output max - 122/86°F kW - BTU/hr 36.2 - 123670... -
Page 14: Dimensions
TECHNICAL CHARACTERISTCS 2.2 Dimensions 12.3 12.2 LEGEND HEATING RETURN Ø 3/4" HEATING FLOW Ø 3/4" Ø 1/2" Ø 1/2" COLD WATER INLET Ø 1/2" HOT WATER OUTLET CONDENSATE DRAIN Ø 0.98 in... -
Page 15: Internal Parts Of The Boiler
TECHNICAL CHARACTERISTCS 2.3 Internal parts of the boiler LEGEND SAFETY THERMOFUSE FLUE HOOD PRIMARY CONDENSING HEAT EXCHANGER IONISATION ELECTRODE PREMIX BURNER UNIT (GAS MANIFOLD + BURNER) CONDENSATE DRAIN PIPE HEATING SENSOR HEATING SAFETY THERMOSTAT VENTURI 10. FAN 11. AUTOMATIC AIR VENT VALVE 12. -
Page 16: Water Circuit
TECHNICAL CHARACTERISTCS 2.4 Water circuit REMOTO LCD EXTERNAL SENSOR STORAGE CYLINDER DHW TEMPERATURE SENSOR code 31368LA (SUPPLIED WITH THE BOILER) REMOTE DHW CYLINDER code 20045LA LEGEND NOTE THERE IS A STRAINER ON THE HEATING CIRCUIT.. THE INSTALLATION OF AN ADDITIONAL STRAINER ON THE SECONDARY CIRCUIT IS RECOMMENDED. -
Page 17: Circulation Pump Head/Flow Graph
TECHNICAL CHARACTERISTCS 2.5 Circulation pump head/flow graph Water flow [US gpm]... -
Page 18: Printed Circuit Board - Technical Characteristics
TECHNICAL CHARACTERISTCS ® printed circuit board – SM 20023 2.6 DIGITECH Technical characteristics Adjustments possible by service personnel only Standard (95-185°F) / reduced (77-104° F) central h e a t i n g temperature Water hammer prevention function Central Heating timer - (adjustable from 0 to 7,5 minutes) Central Heating pump overrun timer Domestic Hot W ater pump overrun timer Minimum Gas pressure setting... -
Page 19: Installation (Authorized Personnel)
INSTALLATION INSTRUCTIONS 3. INSTALLATION (authorized personnel) 3.1 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 20: Unpacking
STORAGE & HANDLING Please note that prior to installation the Pensotti North America boilers should be stored in the horizontal position with no more than three boilers to a stack; Ensure that the boilers are stored in dry conditions and be aware that the carton is a two-man lift;... -
Page 21: Installation Boiler
INSTALLATION INSTRUCTIONS 3.3 Installing the boiler. The appliance must be installed exclusively on a vertical solid wall capable of supporting its weight. ■ The boiler should be fitted within the building unless otherwise protected by a suitable enclosure i.e. garage or outhouse. -
Page 22: Water Connections
INSTALLATION INSTRUCTIONS 3.4 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. In order to safeguard all waterside components the supplied Fernox Commissioning Kit Must be used in its entirety. -
Page 23: Domestic Hot Water Circuit / Hard Water Warning / Expansion Tank
INSTALLATION INSTRUCTIONS 3.5 Domestic Hot Water Circuit ■ In order to prevent scaling and eventual damage to the D.H.W heat exchanger, the mains water supply must not have a hardness rating of more than 7 grains/gal (120 ppm). It is nevertheless advisable to check the properties of the water supply and install the appropriate treatment devices where necessary. -
Page 24: Piping Diagram
INSTALLATION INSTRUCTIONS 3.6 Piping Diagrams 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 –... -
Page 25: Condensate Drain
INSTALLATION INSTRUCTIONS 3.7 Condensate drain FAILURE INSTALL CONDENSATE Termination to an internal soil and vent pipe DISCHARGE PIPEWORK CORRECTLY WILL AFFECT THE RELIABLE OPERATION OF THE Boiler DUAL PURPOSE BOILER. condensate discharge pipe MUST NOT RISE at any point along its length. -
Page 26: Gas Connection
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 27 INSTALLATION INSTRUCTIONS 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 28: Electrical Connections
130VAC Max or 95VAC 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 29 INSTALLATION INSTRUCTIONS Always check to make sure that the appliance has an efficient ground system. This requirement is only satisfied if it has been properly connected to an efficient ground system installed in accordance with the requirements of current safety standards and carried out by professionally qualified personnel. This basic safety measure must be checked, verified and carried out by professionally qualified personnel.
- Page 30 INSTALLATION INSTRUCTIONS 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 31: Venting Connections
All PENSOTTI b o i l e r s use a 3/ 5” c o nc e nt r ic v e nt or a 2 p ip es s ys t em t ha t us es a 3”... - Page 32 INSTALLATION INSTRUCTIONS Venting Pictures & Illustrations...
- Page 33 INSTALLATION INSTRUCTIONS Included With Each Combination Boiler Is A PAHVK Horizontal Kit...
- Page 34 INSTALLATION INSTRUCTIONS 12” Clearance Suggested From The Top Of The Appliance To Ceiling 10” 7 ¾” Top of Appliance to Center Line Of Hole...
- Page 35 INSTALLATION INSTRUCTIONS 3.11 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 36 100’ ( 50” air intake + 50’ exhaust) PCH 18B-H, PCI 18/8-H 2” 85’ (42.5’ air intake + 42.5’ exhaust) PCH 34B-H, PCC 34-H, PCI 34/20-H 2” 85’ (42.5’ air intake + 42.5’ exhaust) PCH 50B-H The vent system must be balanced (the air intake pipe and the exhaust pipe must be as close to equal in length as possible). A maximum of 7 elbows is may be installed in the entire venting system.
- Page 37 INSTALLATION INSTRUCTIONS...
- Page 38 INSTALLATION INSTRUCTIONS...
- Page 39 INSTALLATION INSTRUCTIONS 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 40: Commissioning The Appliance (Authorized Personnel)
INSTALLATION INSTRUCTIONS 4. COMMISSIONING THE APPLIANCE 4.1 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 either Natural Gas or LPG. -
Page 41: Filling The System
INSTALLATION INSTRUCTIONS 4.2 Filling the system Check the properties of the water supply and install the appropriate treatment devices if the mains water has a AIR VENT VALVE PLUG hardness rating more than 7 grains/gal. (120 ppm) in order to prevent scaling and eventual damage to the D.H.W heat PUMP exchanger. -
Page 42: 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. -
Page 43: Starting Up The Boiler
REGULATION INSTRUCTIONS 4.5 Starting up the boiler Once the system has been filled, proceed as follows: Table n°1 Check that the exhaust flue is free of obstructions and correctly Gas type connected to the boiler; Switch on the power supply to the Natural Gas - G20 9.18 appliance;... -
Page 44: Regulating The Appliance (Authorized Personnel)
N° VALUE PCC 34-H PCI 18/8-H or PCI 34/20-H Selects the type of boiler PCH 34B-H, PCH 18B-H or PCH 50B-H D.H.W. Temperature 95-160 ° F (PCC 34-H only) Natural gas Selects the type of gas Propane Sets the central heating Standard (95-185°... -
Page 45: Setting The Parameters
MAINTENANCE INSTRUCTIONS 5.2 Setting the parameters To modify the pre-set values of the parameters reported in the previous table, open the parameter settings menu as follows: 1. Place the On/Off switch in the OFF position. O FF 110V 60Hz 2. Activate the On/Off switch while keeping buttons ‘+’ and “-“... - Page 46 00 = PCC 34-H, ^; 01 = PCI 18/8-H or PCI 34/20-H; 02 = PCH 34B-H, PCH18B-H or PCH 50B-H; 03 = DHW Temperature 95-160°F – PCC 34 Only P 01 7. Press and release button ‘S’ to confirm. The parameter number (1) will appear on the display.
- Page 47 MAINTENANCE INSTRUCTIONS 4 – C ARAMETER ENTRAL HEATING PUMP 6. Use buttons ‘+’ and ‘-‘to modify the value of the parameter: 110V 60Hz 00 = standard (3 minute default overrun) 01 = permanent (always running) 7. Press and release button ‘S’ to confirm. The parameter number (4) will appear on the display.
- Page 48 MAINTENANCE INSTRUCTIONS 7 – C ARAMETER ENTRAL HEATING PUMP OVERRUN TIMER 110V 60Hz 6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter within the prescribed limits 00 = 0 x 5 sec = 0 sec 90 = 90 x 5 sec = 450 sec (7.5 min) The default value is 36 = 180 sec = 3 min P 07 7.
- Page 49 00 = boiler with atmospheric burner; 110V 60Hz 01 = PCH18B-H or PCI 18/8-H 02 = PCH 34B-H, PCI 34/20-H or PCC 34-H 03 = PCH 50B-H 7. Press and release button ‘S’ to confirm. The parameter number (14) P 1 4 will appear on the display.
- Page 50 MAINTENANCE INSTRUCTIONS 17 – M ARAMETER INIMUM PEED ETTING 6. Use buttons ‘+’ o ‘-’ to modify the value of the parameter: 110V 60Hz max = value of parameter 18 The default value is : - 55 Hz for Natural Gas; - 52 Hz for L.P.G.;...
- Page 51 MAINTENANCE INSTRUCTIONS 21 – I ARAMETER GNITION EQUENCE ETTING GNITION POINT IN 1 1 0 110V 60Hz 6. Use buttons ‘+’ o ‘-’ to modify the value of the parameter between: min = value of parameter 17; max = value of parameter 18.
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Page 52: Gas Data
NATURAL GAS – GAS A LIQUID PROPANE GAS – GAS E Heating Value (BTU/Cubic Feet) 2516 BTU/FT³ 1000 “wc Nominal supply gas pressure Heating Power (kW) – Fan frequency (Hz) diagram PCC 34-H, PCH 34B-H & PCI 34/20-H LP Gas Nat Gas... -
Page 53: Converting The Boiler To A Different Gas Type
8. Switch off the appliance and switch it back on again to render the new parameter operative. **When Converting model numbers PCC 34-H, PCH 34B-H, PCI 34/20-H and PCH 50B-H it is only necessary to change Parameter “P02”. If converting models numbers PCH 18B-H or PCI 18/8-H it is necessary to change Perimeters 2, 17, 18, 19, 20 and 21 to the values fund in the corresponding installation manuals. -
Page 54: Maintenance (Authorized Personnel)
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 55: Boiler Inspection
MAINTENANCE INSTRUCTIONS 6.3 Boiler inspection In order to ensure that the boiler operates efficiently and safely, it is recommended that the appliance is inspected by a suitably competent technician at least once a year. The following operations should be carried out annually: ■... -
Page 56: Accessing The Boiler
MAINTENANCE INSTRUCTIONS 6.4 Accessing the boiler All maintenance operations require one or more of the appliance 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 57: 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 58: Maintenance Operations
ALWAYS turn off the ELECTRICITY, primary heat WATER and GAS supplies to the boiler. exchanger Pensotti LLC will not be held responsible for damage to any of the boiler’s components caused by non- premix burner unit compliance with this instruction. - Page 59 MAINTENANCE INSTRUCTIONS Part replacement Ignition and/or flame detection electrodes (see fig. 2) Un-Plug the electrode wires; Slacken the fixing screws; Remove the electrodes. When fitting the new ones, check that the seals are not damaged. ignition Replace if necessary; electrode Reconnect the wires and re-assemble the components following the above procedure in reverse order;...
- Page 60 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 61 INSTALLATION INSTRUCTIONS Electric fan (see fig. 1) Remove and dismantle the entire burner unit (see “Cleaning the burner unit”). venturi Use an 8 mm spanner to unscrew the four nuts securing the electric fan to the gas manifold and then remove the electric fan, noting the positions of the washer.
- Page 62 INSTALLATION 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 63 INSTALLATION INSTRUCTIONS Primary heat exchanger (see fig. 1) Close the shut-off valves and drain the central heating circuit of the boiler; primary heat Switch off the power and gas supply to the boiler; flue exchanger connection Remove and dismantle the entire burner unit (see chamber “Cleaning the condensation module and burner unit”);...
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Page 64: Wiring Diagrams
INSTALLATION INSTRUCTIONS 6.8 Wiring diagrams PRINTED CIRCUIT BOARD KOND DT - SK11003 COD. 76702LA PRINTED CIRCUIT BOARD DIGITECH - SM20023 EXHAUST FAN type RG 128 PRINTED CIRCUIT BOARD - SK16504 - COD. 40-00073 IG: Main Switch green PA: Air Pressure switch TS: Safety thermostat fusibile 2A brown... - Page 65 INSTALLATION INSTRUCTIONS Connecting the room thermostat (Option) Connect the wires to the terminal board inside the instrument panel as follows: TA terminals are 24volt DC. Accordingly only a non-power stealing device can be installed to the these terminals. a. switch off the power supply at the main switch. b.
- Page 66 INSTALLATION INSTRUCTIONS Regulating the water temperature in accordance with the outdoor temperature The outdoor sensor has to be connected directly to circuit board. In case of outdoor temperature sensor installation, the climatic compensation curve is set using the central heating control knob. As the knob (see fig. 2) is rotated, the numbers corresponding to the curve shown in figure 1 are displayed The factors governing the correction are reported in figure 1.
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Page 67: Sensor Connection
INSTALLATION INSTRUCTIONS 6.9 D.H.W sensor connection (INDIRECT FIRED WATER HEATER) -
Page 68: Troubleshooting
INSTALLATION INSTRUCTIONS 6.10 Troubleshooting ERROR CODE PROBLEM POSSIBLE CAUSE REMEDY WITH NO IGNITION WITH NO IGNITION NO GAS. CHECK MAINS SUPPLY. IGNITION ELECTRODE BROKEN OR GROUNDED. REPLACE PART. GAS VALVE MALFUNCTION REPLACE PART MECHANICAL MINIMUM ADJUSTMENT (ON GAS REGULATE MECHANICAL MINIMUM OR VALVE) SET TOO LOW OR SLOW IGNITION SLOW IGNITION. -
Page 69: Diagnostics
INSTALLATION INSTRUCTIONS 6.11 Diagnostics ■ Error codes: Ionization Lock Out / Air Pressure Switch Tripped Safety Thermostat Tripped Flue Gas Thermofuse Tripped Low Water Pressure Alarm Heating Sensor Malfunction 110V 60Hz D.H.W Storage Cylinder Sensor Malfunction Electric Fan Malfunction Parameter Programming Request Flame Detection Malfunction Fan Speed P.C.B. -
Page 70: Parts List
6.12 Parts List / Available from PENSOTTI Main components CODE DESCRIPTION 30-00020 CONDENSING EXCHANGER 5+1 ASME COMPLETE 25-00045 EXPANSION VESSEL 6 lt. 25-00196 WATER PRESSURE GAUGE 25-00247 SAFETY VALVE 30 psi 25-00248 PUMP UPS 15-58 CACAO ETL Molex 27044LA CONDENSATE TRAP 30-00062 AIR PRESSURE SWITCH HUBA 605.99851 0.004/0.003 psi (30/20 Pa) -
Page 71: Cycle Sequence Flow Chart
6.13 Cycle Sequence of Operations... - Page 72 Pensotti LLC 34 Coffin Ave Brewer, ME 04412 P. 207-942-3636 F. 207-942-3737 www.pensottiboiler.com...