PENSOTTI PCI 18 User manual

CONTENTS
Instruction Manual
PCI 18/8
Condensing Combination
Spaceheating/Water hea t er
61,419 BTU/h 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 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 Z21.10 / CSA 4.3 - 2011

CONTENTS
1. General information Pages
1.1 General warnings 1
1.2 Product conformity 9
2. Technical characteristics
2.1 Technical data 10
2.2 Dimensions 11
2.3 Internal parts of the water heater 12
2.4 Water circuit 13
2.5 Circulation pump head/flow graph 14
2.6 Printed circuit board –Technical characteristics 15
2.7 Control panel 15
3. Installation (authorized personnel)
3.1 Reference standard 16
3.2 Unpacking 17
3.3 Installing the water heater 18
3.4 Water connections 19
3.5 Domestic Hot Water Circuit / Hard Water Warning / Expansion Tank 21
3.6 Piping Diagram 22
3.7 Condensate Drain 23
3.8 Gas connection 24
3.9 Electrical connections 25
3.10 Venting connections 28
4. Commissioning the appliance (authorized personnel)
4.1 General warnings 33
4.2 Filling the system 34
4.3 Flushing the system 35
4.4 Filling the condensate trap 35
4.5 Starting up the water heater 36
5. Regulating the appliance (authorized personnel)
5.1 Parameters table 37
5.2 Setting the parameters 38
5.3 Gas Data 45
5.4 Converting the Water Heater to a Different Gas Type 46

CONTENTS
6. Maintenance (authorized personnel) Pages
6.1 General warnings 48
6.2 Maintenance 48
6.3 Water heater inspection 49
6.4 Accessing the water heater 50
6.5 Flushing out the primary side 50
6.6 Draining the central heating and domestic hot water system 51
6.7 Maintenance operations 53
6.8 Wiring diagrams 60
6.9 D.H.W Sensor Connection 61
6.10 Troubleshooting 63
6.11 Diagnostics 64
6.12 Parts list 65
6.13 Sequence of operations 66

GENERAL INFORMATION
1
1. GENERAL INFORMATION
1.1 General warnings –Installation
Read all safety warnings in the “Instruction Manual”. The additional safety issues outlined below must also be
followed completely when installing this Combination Water heater.
Use of a properly calibrated electronic combustion analyzer MUST be used when installing, servicing or
converting this Combination Water heater from Natural Gas to LP or from LP to Natural Gas.
Failure to remove or maintain the area free of combustible material, gasoline and other flammable liquids or
vapors can result in severe personal injury, death or substantial property damage.
All applicable local, state, national and provincial codes, ordinances, regulations and laws must be observed.
For installations in Massachusetts –code requires the units to be installed by a licensed plumbing or gas fitter.
The appliance cannot operate without the correct amount of air for combustion. Please make sure there is
sufficient inflow and outflow of air for ventilation, never obstruct the flow of ventilation air. Failure to provide the
proper amount of combustion air can result in a fire or explosion and cause death, serious bodily injury or property
damage.
If an external electrical source is utilized, the appliance, when installed, must be electrically grounded in
accordance with local codes or, in the absence of local codes, with the National Electrical Codes ANSI/NFPA 70
and or the CSA C22.1 Canadian Electrical Code.
Follow all local codes and/or the most recent edition of the National Fuel Gas Code (ANSI Z223.1/NFPA
54) in the USA or the Natural Gas and Propane Installation Code in Canada (CAN/CSA B149.1).
This unit is designed for indoor installations. DO NOT operate this unit without the vent piping connected.
Exhaust gases must be completely expelled out of the building.
Do not use this appliance if any part has been underwater. Immediately call a qualified service
technician to inspect the appliance and replace any part of the control system and any gas control which
has been underwater.
Be sure not to reverse the water and gas connections as this may damage the gas valves.
Water temperatures over 125°F can cause severe burns instantly or death from scalding. If the proposed
water heater outlet temperature is above 125°F, a thermostatically controlled mixing valve (or a
temperature limiting valve) for reducing point of use water temperature is recommended to reduce the
risk of scald injury. Contact a licensed plumber or the local plumbing authority for further 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.
Do not use this combination water heater for any purpose other than water heating and space heating.
The flow of combustion air and ventilation to the water heater must not be obstructed. The water heater area
must be kept clear and free from combustible materials, gasoline and other flammable vapors and liquids.
If the water quality is known to be highly acidic and/or extremely hard, water treatments (ie water softeners and
filtration) are recommended to maintain full warranty. Consult the local water authority.
DO NOT over-tighten fittings, as pipe and/or fitting damage may occur causing leakage.
DO NOT install water heater where subject to vibrations.
For other than a direct vent appliance, the appliance must be located as close as possible to a chimney or gas
vent.
Should overheating occur or the gas supply fails to shut off, turn the manual gas control valve to the
appliance. Contact a Service Technician immediately.
Clearance must be in accordance with the local installation codes and the requirements of the gas supplier.

GENERAL INFORMATION
2
Never operate the heater unless it is vented to the outdoors and has adequate air supply to avoid risks of
improper operation, fire, explosion or asphyxiation.
DO NOT install this water heater directly on a carpeted floor. A fire hazard may result. The water heater
shall be installed on a metal or wood panel extending beyond the full width and depth of the water heater
by at least 3 inches (76.2mm) in any direction or, if the water heater is installed in an alcove or closet, the
entire floor shall be covered by the panel.
For safe operation, an ample supply of air must be provided for proper combustion and ventilation in
accordance with the National Fuel Gas Code ANSI Z223.1/NFPA 54 National Fuel Gas Code CSA/B149.1
Natural Gas and Propane Installation Codes or applicable provisions of the local building codes. An
insufficient supply of air may result in a yellow, luminous burner flame, carboning or sooting of the heat
exchanger, or create a risk of asphyxiation. Do not obstruct the flow of combustion and ventilation air.
This unit is not intended to operate at gas supply pressures other than those shown on the rating plate. Exposure
to higher gas supply pressure may cause damage to gas valves, which can result in fire or explosion. If over-
pressure has occurred, such as through improper testing of gas lines or emergency malfunction of the supply
system, the gas valves must be checked for safe operation.
A thermostatic mixing valve must be added to this system to prevent scalding, if regulated by local
codes and authorities.
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 water heater 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.
Be sure the gas type and electricity voltage match the rating plate.
There is a risk in using fuel burning appliances in rooms or areas where gasoline, other flammable liquids or
engine-driven equipment or vehicles are stored, operated or are repaired. Flammable vapors are heavy and
travel along the floor and may be ignited by the igniter or main burner flames causing fire or explosion. Some
local codes permit operation of gas appliances if installed 18 inches or more above the floor. This may reduce
the risk if location in such an area cannot be avoided. Flammable items, pressurized containers or any other
potential fire hazardous articles must never be placed on or adjacent to the water heater. Open containers of
flammable materials should not be stored or used in the same room with the water heater.
Do not install the PENSOTTI water heater in areas with excessive high humidity.
Do not install the unit in location where there is excessive humidity, such as a bathroom, damp crawl space, and
other areas with high levels of humidity. This may cause the unit to malfunction.
To avoid possible electrical shock, DO NOT touch the internal components of the water heater or the power cord
with wet hands.
DO NOT splash excessive water on the water heater when cleaning, as they are water resistant, not water proof.
Professionally qualified personnel in accordance with current laws and standards and in line with the
manufacturer’s instructions must install the appliance.
The commissioning of the water heater and any subsequent works carried out on the appliance must be effected
by an appropriately qualified technician.
The appliance must be used solely for the purpose for which it has been designed and manufactured: central
heating and domestic hot water production. Any other use is deemed as improper and as such dangerous.
Under no circumstances will the manufacturer be held responsible for damage or injury to persons or animals
caused by errors in the installation and/or use of the appliance, or through non-compliance with current local and
national standards and/or the manufacturer’s instructions.
The installation, operation and maintenance manual forms are an integral and essential part of the product and
must be kept with the appliance always.
The warnings contained in this chapter have been written for the appliance user, the installer and the service
technician.

GENERAL INFORMATION
3
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. Packing materials (cardboard box, wooden crate, nails, staples,
plastic bags, polystyrene, etc.) must not be left within reach of children in that these items represent a potential hazard
and must be disposed of in a responsible manner.
Before carrying out any cleaning or maintenance operations, disconnect the appliance from the mains electricity supply
by switching off at the main switch and/or any other isolating device.
In the case of a fault and/or malfunction in the appliance, shut down the system. Do not interfere with or attempt any
repairs. Call for professionally qualified technical assistance only.
Any warranty repairs to the appliance must be carried out exclusively by the manufacturer’s authorized service dealers
using original spare parts. Non-compliance with the above requirements may compromise the safety of the appliance
and invalidate the warranty. In order to guarantee the efficiency of the appliance and its correct operation, it must be
serviced regularly by professionally qualified personnel in line with the manufacturer’s instructions.
Only original accessories or optional extras (including electrical parts) must be used with the appliance.
Should there be a smell of gas present in the room where the appliance is installed, DO NOT attempt to activate any
electric switches, telephones or any other equipment that may cause sparks. Open doors and windows immediately to
create a current of air and ventilate the room. Shut-off the main gas supply valve (at the meter), or on the cylinder in the
case of bottled gas, and call an authorized service center.
Do not attempt to interfere with the appliance in any way.
As dictated by current legislation, this appliance must be installed exclusively by qualified personnel. Before
starting the water heater for the first time, make sure that it is connected to a water supply and central heating system
compatible with its performance characteristics.
Prior to start-up, the central heating pipes should be flushed to remove any residues that could compromise the
operation of the appliance.
The appliance must be connected to a designated electrical circuit only.
The power supply must be checked by a qualified electrician to ensure that it can support the maximum power
absorption of the appliance, as indicated on the appliance rating plate (positioned on the casing). In particular, make
sure that the cable ratings are adequate for the power absorbed.
Do not use adapters; multiple sockets or extension leads to connect the appliance to the power supply.
The appliance must be connected to the mains power supply through an appropriate electrical isolator in accordance
with the current wiring regulations.
If the cable is damaged in any way, switch off the appliance and have the cable replaced by a suitably qualified
technician.
When the appliance is no longer required for use, switch off the main power supply, to switch all electrical
components off (circulating pump, burner etc.).
The thermostats are adjusted at their minimum lowest temperature positions when shipped from the
factory.
Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause
improper and dangerous operation.

GENERAL INFORMATION
4
Important: Carbon Monoxide Detectors
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”
(a)For all horizontally vented gas fuelled equipment installed in every dwelling, building or structure used in whole or in part
for residential purposes, including those owned and operated by the Commonwealth and where the side wall exhaust vent
termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and
porches, the following requirements shall be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall
horizontal vented gas fuelled equipment, the installing plumber or gas fitter shall observe that a hard wired
carbon monoxide detector with an alarm and battery back-up is installed on the floor level where the gas
equipment is to be installed and on each additional level of the dwelling, building or structure served by the
equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed
professionals for the installation of hard wired carbon monoxide detectors.
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space
or an attic, the hard wired carbon monoxide detector with alarm and battery back-up may be installed
on the next adjacent floor level.
b. In the event that the requirements of this subdivision cannot be met at the time of completion of
installation, the owner shall have a period of 30 days to comply with the above requirements;
provided, however, that during said 30 day period a battery operated carbon monoxide detector with
alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in
accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS
certified.
3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building
at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the
horizontally vented gas fuelled heating appliance or equipment. The sign shall read, in print size no less than
one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fuelled equipment shall
not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and
signage installed in accordance with the provisions of 248 CMR 5.08(2)(a) 1 through 4.

GENERAL INFORMATION
5

GENERAL Information
6
ING

GENERAL Information
7

GENERAL Information
8

GENERAL INFORMATION
9
1.2 Product conformity
All Pensotti LLC water heaters are ETL certified and possess technical and functional characteristics that comply
with the following standards:
Gas fired water heaters also comply with the following standards:
American National Standard/CSA Standard for Gas Water Heaters Volume III, Storage Water Heaters with input
Ratings above 75,000 Btu per Hour, Circulating and Instantaneous. Conforms to ANSI STD Z21.10.3, certified to
CSA STD 4.3.
The materials used such as copper, brass, stainless steel, etc. form a compact, uniform, highly functional unit that
is easy to install and simple to operate. In its simplicity, the wall-mounted appliance is equipped with all the
appropriate accessories required to make it a fully independent water heater capable of satisfying domestic hot
water production and central heating needs. All water heaters are fully inspected and are accompanied by a quality
certificate, signed by the inspector, and a guarantee certificate. This manual must be kept in a safe place and
must accompany the water heater at all times.
Pensotti LLC will not be held responsible for any misinterpretation of this manual resulting from
the inaccurate translation of same.
Pensotti LLC will not be held responsible for the consequences in the case of non-observance of the
instructions contained in this manual or in the case where actions not specifically described herein are
undertaken.

TECHNICAL CHARACTERISTCS
10
2. TECHNICAL CHARACTERISTICS
2.1 Technical data
Model
PCI 18/8
CE Certification
n°
0694BN3485
Appliance Type
B23p-B33-C13-C33-C43-C53-C63-C83-C93
Appliance Category
II2H3B/P
Heat Input max
kW - BTU/hr
18 –61419
Heat Input max - D.H.W. production working
kW - BTU/hr
23.5 –80185
Heat Input min
kW - BTU/hr
(G 20) 4 –13.649 / (G 31) 5,50 –18.767
Heat Output max - 122/86°F
kW - BTU/hr
19,26 –65.718
Heat Output max - 176/140°F
kW - BTU/hr
17,69 –60.374
Heat Output max - D.H.W. production working - 176/140°F
kW - BTU/hr
23.10 –78822
Heat Output min - 176/140°F
kW - BTU/hr
3,90 –13.294
Efficiency 100% (full load 122/86°F)
%
96
Efficiency 30% (partial load 122/86°F)
%
97
Efficiency 100% (full load 176/140°F)
%
87.7
Efficiency 30% (partial load176/140°F)
%
88.8
GAS DIRECTIVE 92/42/ECC - Efficiency marking
stars
4
Sedbuk
band
A
NOx
class
5
Central Heating circuit
Central Heating water temperature setting (min-max)
°C –°F
30-80 / 25-40 –86-176 / 77-104
Max. heating working temperature
°C –°F
80 –176
Expansion vessel capacity
litres - gal
8 - 2,11
Max. working pressure (heating)
bar - psi
2.1 - 30
Min. working pressure (heating)
bar - psi
0.3 - 4.29
Domestic Hot Water circuit
D.H.W. temperature setting (min-max)
°C –°F
35-70 –95-160
Max. Hot water working pressure
bar - psi
6 - 86
Min. Hot water working pressure
bar - psi
0.5 - 7.16
D.H.W. 40 °C water supply (DT 30°C) for 1 hour
litres - gal
696 –183,9
Max D.H.W. 40 °C water supply (DT 30°C) first 10 minutes
litres - gal
120 –31,7
Storage cylinder capacity
litres - gal
8 - 2,11
Dimensions (casing size)
Width
in
17.7
Height
in
31.1
Depth
in
13
Weight (net)
lbs
101.41
Hydraulic connections
Central Heating Supply
NPT
3/4"
Central heating Return
NPT
3/4"
D.H.W Cold Inlet
NPT
1/2"
D.H.W. Hot Inlet
NPT
1/2"
Gas connection
NPT
1/2"
Flue systems
Horizontal-Concentric flue system
Ø mm - in
60/100 - 2.4/4
Max. Flue length
m - ft
5 - 16.4
Gas Supply
Natural gas G 20
Inlet pressure
mbar - psi
20 - 0.29
Gas consumption
m3/h - ft3/h
1.91 –67,44
Propane G31
Inlet pressure
mbar - psi
37 - 0.53
Gas consumption
kg/h - ft3/h
1.40 –25.71
Electrical specifications
Power supply
V/Hz
120/60
Electrical power consumption
W
190
Electrical protection
IP
X4D

TECHNICAL CHARACTERISTCS
11
13
17.7
31.1
SC HF
CWI
G
HR HWO
2.85 12 2.85
29.7
2.5 3.1 2.7 3.2 4 2.2
5.1
HR
HWO
G
CWI
HF
2.2 Dimensions
LEGEND
HR
HEATING RETURN
Ø 3/4"
HF
HEATING SUPPLY
Ø 3/4"
G
GAS
Ø 1/2"
CWI
COLD WATER INLET
Ø 1/2"
HWO
HOT WATER OUTLET
Ø 1/2"
SC
CONDENSATE DRAIN
Ø 0.98 in

TECHNICAL CHARACTERISTCS
12
2.3 Internal parts of the water heater
LEGEND
1. SAFETY THERMO FUSE
2. FLUE HOOD
3. PRIMARY CONDENSING HEAT EXCHANGER
4. IONISATION ELECTRODE
5. PREMIX BURNER UNIT (GAS MANIFOLD + BURNER)
6. HEATING SENSOR
7. HEATING SAFETY THERMOSTAT
8. FAN
9. VENTURI
10. CONDENSATE TRAP
11. PUMP WITH AIR VENT
12. SAFETY VALVE 3/4" - HTG CIRCUIT
13. SYSTEM DRAIN VALVE
14. MAGNESIUM ANODE
15. AIR PRESSURE SWITCH
16. PRESSURE RELIEF VALVE 8 BAR - HOT WATER
17. IGNITION TRANSFORMER
18. AUTOMATIC AIR VENT VALVE
19. IGNITION ELECTRODE
20. D.H.W. SENSOR
21. EXPANSION VESSEL
22. CYLINDER
23. ELECTRONIC GAS VALVE
24. CYLINDER DRAINING TAP
25. LOW WATER CUT OUT SWITCH
26. PLATE EXCHANGER
27. 3-WAY VALVE
28. ELECTRONIC FLOWSWITCH
29. NO-RETURN VALVE
30. WATER PRESSURE GAUGE
31. FILLING TAP
1
3
9
8
5
2
7
6
4
12
11
10
13
15
23
14
18
17
16
24
22
26
25
20
19
28
27
29
30
31
21

TECHNICAL CHARACTERISTCS
13
2.4 Water circuit
LEGEND
1. AIR PRESSURE SWITCH
2. HEATING SAFETY
THERMOSTAT
3. HEATING SENSOR
4. PRIMARY CONDENSING HEAT
EXCHANGER
5. PREMIX BURNER UNIT (GAS
MANIFOLD+BURNER)
6. IONISATION ELECTRODE
7. EXPANSION VESSEL
8. FAN
9. ELECTRONIC GAS VALVE
10. NO-RETURN VALVE
11. AUTOMATIC AIR VENT VALVE
12. PUMP
13. SAFETY VALVE 3/4"
14. SYSTEM DRAIN VALVE
15. AUTOMATIC BY-PASS
16. SAFETY THERMO FUSE
17. IGNITION TRANSFORMER
18. IGNITION ELECTRODE
19. CONDENSATE DRAIN PIPE
20. VENTURI
21. ROOM SEAL CHAMBER BACK SIDE
22. LOW WATER CUT OUT SWITCH
23. CONDENSATE TRAP
24. CONDENSATE DRAIN PIPE
25. PLATE EXCHANGER
26. ELECTRONIC FLOWSWITCH
27. DIVERTER VALVE ACTUATOR UL/CSA
28. FLOW LIMITER
29. WATER PRESSURE GAUGE
30. FILLING TAP
31. PRESSURE RELIEF VALVE 7 BAR - HOT WATER
32. MAGNESIUM ANODE
33. D.H.W. SENSOR
34. CYLINDER
35. CYLINDER DRAINING TAP
36. EXPANSION VESSEL D.H.W.
LEGEND
HR
HEATING RETURN
HF
HEATING FLOW
G
GAS
CWI
COLD WATER INLET
HWO
HOT WATER OUTLET
SC
CONDENSATE DRAIN
HF
CWI
GHWOHR SC
11
1
3
2
18
6
7
4
5
8
9
11
12
14
26
24
23
27
25
21
19
20
31
32
34
10
33
13
35
15
17
22
16
36

TECHNICAL CHARACTERISTCS
14
2.5 Circulation pump head/flow graph
Pump head
I, II, III
Pump speed
Boiler losses
I
II
III
0
5
10
15
20
25
30
0 2 4 6 8 10
Water flow (US gpm)
Head (ft)

TECHNICAL CHARACTERISTCS
15
6 754321
8
110V 60Hz
2.6 DIGITECH® printed circuit board –SM 20021
Technical characteristics
Adjustments possible by service personnel only
Standard (86-176°F) / reduced (77-104°F) central heating temperature
Water hammer prevention function
Central Heating timer - (adjustable from 0 to 7,5 minutes)
Central Heating pump overrun timer
Domestic Hot Water pump overrun timer
Minimum Gas pressure setting
Maximum Heating Load
D.H.W. temperature setting 95-160°F
User settings
On/Off
Heating Temperature setting (86-176°F) –(77-104°F)
D.H.W. temperature setting (95-140°F) –(95-160°F)
D.H.W. only mode / Heat only mode / D.H.W. + Heat mode selection
Operation/Functions display
Lock-Out
Water deficiency indicator
Temperature display
-+ When the water heater is switched off at the switch on the control panel, the word OFF appears on the
display. The D.H.W and central heating frost protection system, nevertheless, remain enabled. If the
water heater was previously on, it is switched off and the post-ventilation, pump overrun, circulation
pump and three-way valve inactivity protection functions are enabled.
2.7 Control panel
LEGEND
1. ON/OFF SWITCH
2. HEATING TEMPERATURE CONTROL KNOB
3. D.H.W TEMPERATURE CONTROL KNOB.
4. D.H.W TEMPERATURE BUTTON. KEEP
PRESSED FOR 5 SECONDS TO DISPLAY
OUTSIDE TEMPERATURE (ONLY WITH
OPTIONAL OUTDOOR SENSOR)
5. SERVICE BUTTON.
6. D.H.W, HEAT OR D.H.W./HEAT MODE
SELECTION BUTTON.
7. TERMINAL BOARD FOR EXTERNAL WIRING.
8. TEMPERATURE, ERROR CODE AND
OPERATING STATUS DISPLAY

INSTALLATION INSTRUCTIONS
16
3. INSTALLATION (authorized personnel)
3.1 Reference standard
Install in accordance with local building and electrical codes.
This appliance meets the requirements of:
American National Standard/CSA Standard for Gas Water Heaters Volume III, Storage Water Heaters with input
Ratings above 75,000 Btu per Hour, Circulating and Instantaneous Conforms to ANSI STD Z21.10.3, certified to
CSA STD 4.3.
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.
Installation requirements
Please refer to local and national standards in force with the Country of destination of the product.

INSTALLATION INSTRUCTIONS
17
B
C
A
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 combination water
heater. The manufacturer will not be held responsible
for damage caused by incorrect storage of the product.
■Packing materials (plastic bags, polystyrene, nails,
etc.) must not be left within reach of children, in that
these items represent a potential hazard.
A. Place the packed appliance on the floor (see fig. 1)
making sure that the "up” arrow is facing down. Remove the
staples and open out the four flaps of the box.
B. Rotate the combination water heater 90° while manually
supporting it from underneath
C. Lift the box and remove the protections. Lift the
combination water heater by grasping the rear part and
proceed with the installation.
STORAGE & HANDLING
Please note that prior to installation the Pensotti North America combination water heaters should be stored in the
horizontal position with no more than three combination water heaters to a stack;
Ensure that the combination water heaters are stored in dry conditions and be aware that the carton is a two-man lift;
Fig 1