Riello Residence PRO 32 KIS Manual

cod. 20133301 rev. 0 01/2018
Residence PRO 32 KIS
INSTALLATION & OPERATING INSTRUCTIONS FOR CONTRACTORS
9 WARNING: If the information in this manual
is not followed exactly, a re or explosion
may result causing property damage,
personal injury or loss of life.
Do not store or use gasoline or other ammable
vapors and liquids or other combustible
materials in the vicinity of this or any other
appliance. To do so may result in an explosion
or re.
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
re department.
Installation and service must be performed by
a qualied installer, service agency or the gas
supplier.
This manual should be maintained in legible
condition and kept adjacent to the boiler or
in a safe place for future reference.

2
CONTENTS
1 KEY TO SYMBOLS ............................ 3
2 WARNINGS ................................ 3
2.1 Ratings and Certications ....................3
2.2 Regulations and guidelines ...................3
2.3 General warnings ..........................3
3 SAFETY ................................... 4
3.1 General safety .............................4
3.2 Scalding time/temperature relationships .........4
4 PRODUCT RECEIPT ........................... 5
4.1 Model Identication ........................5
4.2 Boiler box content ..........................5
4.3 Installation at elevation .....................5
5 INTRODUCTION.............................. 5
5.1 Structure .................................6
5.2 Boiler front control..........................7
5.3 Technical data .............................8
5.4 Hydraulic circuit........................... 12
5.5 Dimensions and connections ................ 14
6 BEFORE INSTALLATION.........................15
6.1 Installations must comply with:............... 15
6.2 Before locating the Residence PRO boiler ........ 15
6.3 Clearances for service access ................. 15
6.3.1 Exhaust vent and intake air vent . . . . . . . . . . . . . . 15
6.4 Prevent combustion air contamination ......... 16
6.5 When removing an existing boiler from an
existing common vent system ................ 16
6.6 Prepare the Residence PRO .................. 16
7 INSTALLATION...............................16
7.1 Wall mounting information . . . . . . . . . . . . . . . . . . 16
7.1.1 Placing the wall-mounted Residence PRO boiler .. 16
7.2 Boiler template ............................17
7.2.1 Installation steps ...........................17
7.3 ASME pressure relief valve ....................17
7.4 Installing the condensate check valve .......... 18
7.5 General piping information .................. 18
7.5.1 Separate low water cutoff ................... 18
7.5.2 Fitting the heating circuit supply and return pipes.18
7.5.3 Sizing space heat system piping .............. 19
7.5.4 Available Pump Head (ft. hd.) ................ 19
7.6 Making the gas connection .................. 19
7.7 Electrical connections ...................... 19
7.7.1 OT and Room Thermostat connection to the boiler.20
7.8 Electrical supply........................... 21
7.9 External wiring limitations................... 21
7.9.1 3 way valve/pump card management (BE09) ..... 21
7.10 Other devices............................. 21
7.11 Check/control water chemistry................ 21
7.12 Freeze protection (when used) ............... 22
7.13 Casing removal ........................... 22
7.14 Initial lling of the system and air purge ........ 22
7.15 Rell of the system ........................ 22
7.16 Draining the heating circuit of the boiler ........23
7.17 Emptying the domestic hot water system .......23
8 GENERAL VENTING .......................... 24
8.1 Combustion Air-inlet Contamination ...........24
8.2 Flammable Solvents and Plastic Piping .........24
8.3 Mandatory Pre-commissioning Procedure for PVC
(Air-inlet only) and CPVC Plastic Venting .........24
8.4 General Venting Rules and Guidelines ..........25
8.5 Combustion Air and Ventilation Openings .......26
8.5.1 NearBoiler Vent/Air-inlet Piping ...............30
8.6 Connecting ue gas accessories...............30
8.6.1 Installing of the exhaust and air intake system ...30
8.7 Vent and combustion air pipe length ..........30
8.8 Approved congurations of horizontal and
vertical venting installation . . . . . . . . . . . . . . . . . . 30
9 WIRING DIAGRAM .......................... 36
9.1 Electrical diagram .........................36
9.2 Ladder diagram ........................... 37
10 LIGHTING INSTRUCTIONS ..................... 38
11 COMMISSIONING ........................... 39
11.1 Preliminary checks.........................39
11.2 Instructing the user ........................39
11.3 Initial ushing of the system .................39
11.4 Flushing of the heating system ...............39
11.5 Eventual releasing of the circulator shaft ........39
11.6 Programming the boiler.....................39
11.7 First commissioning........................40
11.8 Adjusting the heating water temperature without
an outdoor temperature sensor connected . . . . . . 41
11.9 Adjusting the heating water temperature with an
outdoor temperature sensor connected ........ 41
11.10 Adjustment of the domestic hot water temperature 41
11.11 Access to the INFO menu .................... 41
11.12 Access to the PARAMETER menu ............... 41
11.12.1 Hydraulic conguration .....................43
11.12.2 Heating timer ............................43
11.12.3 Domestic hot water thermostat ...............43
11.12.4 System..................................43
11.12.5 Preheating...............................43
11.12.6 Minimum CH setpoint ......................43
11.12.7 Maximum CH setpoint ......................43
11.12.8 Minimum DHW setpoint.....................43
11.12.9 Maximum DHW setpoint ....................43
11.12.10 Reset ue hour counter.....................43
11.12.11 Zone valves ..............................43
11.13 Setting the outdoor reset curve with an outdoor
sensor ..................................43
11.14 Checks during and after the rst commissioning..45
11.15 Converting the boiler gas type ................45
11.16 Combustion analysis .......................45
11.17 Lights and faults / Reset procedure ............46
11.18 Temporary switch-off ......................48
11.19 Switching off for long periods ................48
11.20 Replacing of the PCB board ..................48
11.21 Remote devices presence ....................48
12 SERVICING INSTRUCTIONS ..................... 49
12.1 General .................................49
12.2 Maintenance ............................49
12.3 Maintenance of the combustion control system...50
12.4 Annual servicing check list................... 51
13 WARRANTY ............................... 52
14 COMMONWEALTH OF MASSACHUSETTS ............ 53
14.1 Important instructions for the commonwealth of
Massachusetts ............................53
Legend model terminology:
KIS = combi boiler

3
1 KEY TO SYMBOLS
PA Y ATTENTION TO THESE TERMS
DANGER = Indicates the presence of immediate hazards which
will cause severe personal injury, death or substantial property
damage if ignored.
WARNING = Indicates the presence of hazards or unsafe practices
which could cause severe personal injury, death or substantial
property damage if ignored.
CAUTION = Indicates the presence of hazards or unsafe practices
which could cause minor personal injury or product or property
damage if ignored.
NOTICE = Indicates special instructions on installation, operation,
or maintenance which are important but not related to personal
injury hazards.
2 WARNINGS
2.1 Ratings and Certications
−Gas red hot water boiler for either direct vent installation.
Design according to: ANSI Z21.13-2017  CSA 4.9-2017 – Gas-Fired
low pressure hot water boilers. Direct vent boiler, Category IV.
−SCAQMD Rule 1146.2
9 WARNING: Altering any R pressure vessel by installing
replacement heat exchangers, or any ASME parts not
manufactured and/or approved by Rwill instantly void the
ASME and CSA ratings and any warranty on the vessel. Altering
the ASME or CSA ratings of the vessel also violates national,
state, and local approval codes.
These boilers are certied to NSF/ANSI 372-2016 - Low lead
content certication program - plumbing products and conform
to the requirements for “lead free” plumbing products.
2.2 Regulations and guidelines
The installation must conform to the requirements of the authority
having jurisdiction or, in the absence of such requirements, to the
latest edition of the National Fuel Gas Code, ANSI Z223.1/NFPA 54. In
Canada, installation must be in accordance with the requirements
of CAN/CSA B149.1, Natural Gas and Propane Installation Code.
Where required by the authority having jurisdiction, the
installation must conform to the Standard for Controls and Safety
Devices for Automatically Fired Boilers, ANSI/ASME CSD-1.
Install CO detectors per local regulations. The use of a carbon
monoxide detector in conjunction with the R heating products
is required. When installing a carbon monoxide detector, the
manufacturer’s instructions of the carbon monoxide detector
must be followed in their entirety. It is recommended to use
a carbon monoxide detector in compliance with a nationally
recognized standard such as ANSI/UL 2034-2002 in the United
States and CSA 6.19-01 in Canada.
Boilers require yearly maintenance, see chapter “12.2 Maintenance”
page 49” and “12.4 Annual servicing check list” page 51.
2.3 General warnings
DANGER: Make sure the gas on which the boiler will operate is the
same type as that specied on the boiler rating plate and on the
colored sticker near the boiler gas connection.
WARNING: This product is a natural gas appliance that emits
poisonous gases; such as CO (Carbon Monoxide). For this reason,
it is required that CO detectors be installed in buildings where the
boiler is installed. Failure to do so may result in severe injury or
death.
WARNING: Should overheating occur or the gas supply valve fail
to sh ut off, turn off the manual gas control valve to the appliance .
WARNING: Do not use this boiler if any part has been under water.
Immediately call a qualied service technician to inspect the
boiler and to replace any part of the control system and any gas
control which has been under water.
WARNING: Chlorine and chloramine concentration in domestic
water must be less than 50 ppm.
WARNING: Automatic lling systems are not recommended with
this product as they will continually add fresh water to the system
if there is a leak resulting in the addition of new contaminants
that could reduce the lifespan of the boiler.
WARNING: To minimize the possibility of improper operation,
serious personal injury, re, or damage to the boiler:
−Always keep the area around the boiler free of combustible
materials, gasoline, and other ammable liquids and vapors.
−Boiler should never be covered or have any blockage to the ow
of fresh air to the boiler.
WARNING: Risk of electrical shock. More than one disconnect
switch may be required to de-energize the equipment before
servicing. Failure to comply with the above could result in severe
personal injury, death or substantial property damage.
WARNING: Failure to adhere to the guidelines on this page can
result in severe personal injury, death or substantial property
damage.
WARNING: Installation and service must be performed by a gas
supplier or a licensed qualied installer/service Technician.
WARNING - CALIFORNIA PROPOSITION 65: This product contains
chemicals known to the State of California to cause cancer, birth
defects or other reproductive harm.
CAUTION: This boiler requires forced water circulation when the
burner is operating. See minimum and maximum ow rates.
Severe damage will occur if the boiler is operated without proper
water ow circulation.
NOTICE: Minimum 20 AWG, 194°F (90°C), stranded wire must be
used for all low voltage (less than 30 volts) external connections
to the unit. Solid conductors should not be used because they
can cause excessive tension on contact points. Install conduit as
appropriate.
NOTICE: When the boiler has been lled for the rst time or
the system has been drained and relled, it will be necessary
to release any air that may have become trapped within the
appliance heat exchanger. Loosen the bleed screw until water is
released and then close. IMPORTANT, THERE ARE NO OTHER MANUAL
AIR RELEASE VALVES LOCATED ON THE APPLIANCE.
The following instructions must be observed
−The boiler must only be used for its designated purpose,
observing the Installation Instructions.
−Only use the boiler in combinations and with the accessories
and spare parts listed.
−Other combinations, accessories and consumables must only
be used if they are specically designed for the intended
application and do not affect the system performance and the
safety requirements.
−Maintenance and repairs must only be carried out by authorized
professionals.
−You must report the installation of a condensing gas boiler to
the relevant gas and plumbing inspection authority and have
it approved.
−You are only allowed to operate the condensing gas boiler with
the combustion air/ue gas system that has been specically
designed and approved for this type of boiler.
−Please note that local permission for the ue system and the
condensate water connection to the public sewer system may
be required.
−The hot water distribution system must comply with all
applicable codes and regulations. When replacing an existing
boiler, it is important to check the condition of the entire hot
water distribution system to ensure safe operation.
You must also observe:
−The local building regulations stipulating the installation rules.
−The local building regulations concerning the air intake and
outlet systems and the chimney connection.
−The regulations for the power supply connection.
−The technical rules laid down by the gas utility company
concerning the connection of the gas connection to the local
gas main.
−The instructions and standards concerning the safety
equipment for the water/space heating system.
−The Installation instructions for building heating systems.
−The boiler must be installed such that the gas ignition system
components are protected from water (dripping, spraying,
rain etc.) during boiler operation and service (circulator
replacement, condensate trap, control replacement, etc.).

4
−The boiler must not be installed on carpeting.
−The boiler must only be installed on a wall.
−Do not restrict or seal any air intake or outlet openings.
−If you nd any defects, you must inform the owner of the
system of the defect and the associated hazard in writing.
9 DANGER: Flammable gas explodes. Beware if you smell gas:
there may be an explosion hazard!
9 WARNING: If the information in these instructions is not
followed exactly, a re or explosion may result causing
property damage, personal injury or death.
9 WARNING: Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any other boiler.
Observe these instructions as general warnings:
−Chemicals used to clean the system and/or inhibit corrosion
must be pH neutral, i.e. they should ensure that the level of
the pH in the system water remains neutral. Premature failure
of certain components can occur if the pH level in the system
water is out of normal range.
−R recommends that an inhibitor - suitable for use with
stainless steel heat exchangers - is used to protect the boiler
and system from the effects of corrosion and/or electrolytic
action. The inhibitor must be administered in strict accordance
with the manufacturers instructions.
−When the boiler has been lled for the rst time or the system
has been drained and relled, it will be necessary to purge any
air that may have become trapped within the appliance heat
exchanger.
NOTICE: Propylene glycol in the system must not exceed 40%.
Boiler water
- If you have an old system with cast iron radiators, thoroughly
ush the system (without the boiler connected) to remove
sediment. The high-efciency heat exchanger can be damaged
by build-up or corrosion due to sediment.
- Do not use petroleum-based cleaning or sealing compounds
in the boiler system. Gaskets and seals in the system may be
damaged. This can result in substantial property damage.
- Do not use “homemade cures” or “boiler patent medicines.”
Substantial property damage, damage to boiler, and/ or serious
personal injury may result.
- Continual fresh make-up water will reduce boiler life. Mineral
build up in heat exchanger reduces heat transfer, overheats
the stainless steel heat exchanger, and causes failure. Addition
of oxygen carried in by make-up water can cause internal
corrosion in system components. Leaks in the boiler or piping
must be repaired at once to prevent make-up water.
- We recommend the use of water treatment additives to
prolong the life of the boiler and prevent against corrosion and
contaminant build ups in the heating system.
- Ensure piping in the heating system has an oxygen barrier.
Observe these instructions for space heating water:
−Thoroughly ush the system prior to lling. Only use untreated
potable water to ll and top off the system.
−Do not use water softeners in the system.
−The maximum permissible ow rate of the Residence PRO
32 KIS is 3.7 gallons per minute (GPM).
−When using oxygen-permeable pipes, e.g. for oor heating
systems, you must separate the system using heat exchangers.
Unsuitable heating system water promotes the formation of
sludge and corrosion. This may damage the heat exchanger or
affect its operation.
Tools, materials and additional equipment
For the installation and maintenance of the boiler you will need
the standard tools for space heating, gas and water connection.
In addition, a handtruck with a fastening belt is very useful.
Disposal:
−Dispose of the boiler packaging in an environmentally sound
manner.
−Dispose of components of the heating system (e. g. boiler or
control device), that must be replaced, by taking them in to an
authorized recycling facility.
3 SAFETY
3.1 General safety
To meet domestic hot water use needs, the high limit safety
control on this boiler is adjustable up to 140°F (60°C). Water
temperatures over 125°F (52°C) can cause instant severe burns or
death from scalds.
When supplying general purpose hot water, the recommended
initial setting for the temperature control is 120°F (49°C).
Safety and energy conservation are factors to be considered
when setting the water temperature on the thermostat. The most
energy-efcient operation will result when the temperature
setting is the lowest that satises the needs of the application.
Children, disabled and elderly are at highest risk of being
scalded.
−Feel water before bathing or showering.
−Temperature limiting valves are available.
Maximum water temperatures occur just after the boiler’s
burner has shut off. To determine the water temperature being
delivered, turn on a hot water faucet and place a thermometer
in the hot water stream and read the thermometer.
3.2 Scalding time/temperature relationships
The following chart details the relationship of water temperature
and time with regard to scald injury and may be used as a
guide in determining the safest water temperature for your
applications.
Water Temperature Time to Produce Serious Burn
120°F (49°C) More than 5 minutes
125°F (52°C) 1-1/2 to 2 minutes
130°F (54°C) About 30 seconds
135°F (57°C) About 10 seconds
140°F (60°C) Less than 5 seconds
145°F (63°C) Less than 3 seconds
150°F (66°C) About 1-1/2 seconds
155°F (68°C) About 1 second
Table courtesy of The Shriners Burn Institute.
The temperature of the water in the boiler can be regulated
by using the R boiler front control. To comply with safety
regulations, the control is set to a lower temperature when
shipped from the factory.
CAUTION: Hotter water increases the risk of scalding! There is a
hot water scald potential if the thermostat is set too high.

5
4 PRODUCT RECEIPT
On receipt of your boiler it is suggested that you visually check
for external damage to the shipping package.
If the package is damaged, make a note to that effect on the
Bill of Lading when signing for the shipment.
−Remove the boiler from the shipping packaging.
−Report any damage to the carrier immediately.
−On occasion, items are shipped loose.
−Be sure that you receive the correct number of packages as
indicated on the Bill of Lading.
−Claims for shortages and damages must be led with the
carrier by consignee.
−Permission to return goods must be received fromthe manufacturer
or your local R distributor (egproductsolutions.com) prior
to shipping. Goods returned to the factory without an authorized
Returned Goods Receipt number will not be accepted. All returned
goods are subject to a restocking charge .
−When ordering parts, you must specify the model and serial
number of the boiler.
−When ordering under warranty conditions, you must also
specify the date of installation.
−Purchased parts are subject to replacement only under the
manufacturer’s warranty. Debits for defective replacement
parts will not be accepted and will be replaced in kind only
per Rstandard warranty.
4.1 Model Identication
The model identication number and boiler serial number are
found on the boiler rating plate located on the bottom side of the
unit. Also the boiler serial number can be found on the back page
of this manual and on the front of the boiler casing .
4.2 Boiler box content
Component Qty
1Condensing gas boiler 1
2Wall bracket 1
3Pressure relief valve ASME 1
4Electrical low voltage connection box + screw 1
5Condensate check valve 1
6Gas union 3/4” NPT 1
7Gas cock 1
8Gaskets 2
9Strain relief for secondary high voltage connexion 1
10 Set of documents for appliance 1
11 Vent adaptor Ø 3” (80 mm), L=6” (155 mm) for
concentric Ø 3/5” (80/125 mm) 1
12 Vent adaptor Ø 2” (60 mm), L= 5 5/16” (135 mm) for
concentric Ø 2/4” (60/100mm) 1
Paper template (see “7.2 Boiler template”)1
1
2
3
4
5
6
7
98
10
11
12
4.3 Installation at elevation
Rated inputs are suitable for up to 10,000 ft (3048 m) elevation
(see technical data table).
No hardware changes are required to the boilers for installations
up to 10,000 ft (3048 m) (adjustments are required).
For additional settings on high altitude installations refer to your
local R distributor.
5 INTRODUCTION
The Residence PRO boilers have a new ACC (Active Combustion
Control) system.
This new control system ensures functionality, efciency and low
emissions under any conditions.
The ACC system uses an ionization sensor (ame sensor)
immersed in the burner ame, whose information allows the
control board to operate the gas valve that regulates the fuel.
This sophisticated control system provides the auto-regulation
of the combustion, so there is no need for an initial calibration;
however, it is recommended (required in some jurisdictions)
that a combustion analysis is performed during initial start-up
and annual maintenance.
The ACC system is able to adapt the boiler to operate with different
gas compositions, different air inlet and exhaust vent lengths
and different altitudes (within the specied design limits).
The ACC system can also perform an auto-diagnostic operation
that locks out the burner before the permitted upper emission
limit is exceeded.
Residence PRO is a wall hung fan assisted room-sealed
condensing boiler for heating and production of domestic hot
water.
This manual is an integral part of the appliance. It is therefore
necessary to ensure that the manual is handed to the person
responsible for the property in which the appliance is
located/installed. A replacement copy can be obtained from
www.egproductsolutions.com.
IMPORTANT
It is the law that all gas appliances are installed by a competent
person.
It is in your own interest and that of safety to ensure that the law
is complied with.
−The installation must conform to the requirements of the
authority having jurisdiction or, in the absence of such
requirements, to the National Fuel Gas Code, ANSI Z223.1/NFPA
54. Where required by the authority having jurisdiction, the
installation must conform to the Standard for Controls and
Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1.
−The installation should conform with CAN/CSA B149.1 INSTALLATION
CODE and/or local installation Code, plumbing or waste water
codes and other codes as applicable.
−Clearances from combustible material must be strictly adhered to.
−Manufacturers instructions must NOT be interpreted in anyway
as overriding local regulations.

6
5.1 Structure
1 Filling tap
2 Condensate Trap
3 Backow preventer valve
4 Drain valve
5 Low Water Cutoff
6 Gas valve
7 Injector
8 DHW sensor
9 Water Temperature High Limit
10 Supply sensor
11 Return sensor
12 Primary Heat exchanger
13 Flame sensor
14 Manual air vent hose
15 Manual upper air vent valve
16 Flue temperature sensor
17 Positive air pressure tube
18 Flue outlet
19 Air intake
20 Negative air pressure tube
21 Air pressure switch
22 Thermal fuse
23 Ignition transformer
24 Expansion tank
25 Burner
26 Ignition electrode
27 Water discharge hose
28 Clapet
29 Fan
30 Mixer
31 Lower air vent valve
32 Pump
33 Flow sensor
34 Three way valve
35 DHW heat exchanger

7
5.2 Boiler front control
This icon indicates that boiler is in the OFF mode (anti-freeze system active).
If the icon is not present s the boiler is in the ON mode.
This icon indicates the status of the boiler.
If ON, boiler is in heating mode, if blinking there is a heating request.
This icon indicates the status of the boiler.
If ON, boiler is in the DHW mode, if blinking there is a domestic hot water request.
DHW pre-heating: indicates that a pre-heating cycle has been activated.
Error: indicates any operating irregularities, together with an error code message.
This icon indicates the servicing operation.
If ON, there is a system servicing operation in progress.
This icon indicates that the system is detecting the presence of a ame.
This icon indicates that the system is detecting the absence of a ame.
+
Water pressure low: these icons are present when the water pressure is low and needs to be re-
pressureized.
Icons
RESET
MENU
136°F
OK
MODE
Display
SOME OF THE ICONS SHOWN ON THE CONTROL
DEVICE SCREEN AT THE START-UP PHASE MIGHT
NOT BE AVAILABLE DURING FUNCTIONNING.
THIS DEPENDS ON YOUR BOILER CONFIGURATIONS
DHW
adjustment
knob
The knob allows for the domestic hot water setpoint adjustment.
It also allows you to switch from one step to another and change the value of the selected
parameter within the PROGRAMMING menu.
CH
adjustment
knob
The knob allows for the central heating setpoint adjustment.
It also allows you to switch from one step to another and change the value of the selected
parameter within the PROGRAMMING menu
OK
MODE
MODE/OK
button
It allows you to change the BOILER STATUS. You can also:
- navigate through the INFO menu
- select parameters inside the PROGRAMMING menu and conrm the setting of the
corresponding parameter value
RESET
MENU
MENU/RESET
button
It allows you to reset the boiler and enter in the INFO and PROGRAMMING menu. You can also:
- exit from the INFO and PROGRAMMING menu
- reset some error codes

8
5.3 Technical data
Description Residence PRO 32 KIS (*)
Country destination US/CAN
Input - Output
Maximum CH input rate (0 - 2,000 ft / 0 - 610 m) Btu/hr 85,000
kW 24.91
Maximum DHW input rate (0 - 2,000 ft / 0 - 610 m) Btu/hr 120,000
kW 35.17
Maximum CH input rate (2,001 - 5,000 ft / 610 - 1,524 m) Btu/hr 85,000
kW 24.91
Maximum DHW input rate (2,001 - 5,000 ft / 610 - 1,524m) Btu/hr 102,000
kW 29.893
Maximum CH input rate (5,001 - 7,500 ft / 1,524- 2,286 m) Btu/hr 85,000
kW 24.91
Maximum DHW input rate (5001 - 7,500 ft / 1,524- 2,286 m) Btu/hr 91,000
kW 26.67
Maximum CH input rate (7,501 - 10,000 ft / 2,286 - 3,048 m) Btu/hr 83,000
kW 24.32
Maximum DHW input rate (7,501 - 10,000 ft / 2,286 - 3,048 m) Btu/hr 83,000
kW 24.32
Minimum input rate (0 - 2,000 ft / 0 - 610 m) Btu/hr 17,000
kW 4.98
Minimum input rate (2,001 - 5,000 ft / 610 - 1,524m) Btu/hr 17,500
kW 5.13
Minimum input rate (5,001 - 7,500 ft / 1,524- 2,286 m) Btu/hr 15,500
kW 4.54
Minimum input rate (7,501 - 10,000 ft / 2,286 - 3,048 m) Btu/hr 14,000
kW 4.10
CH output rating (0 - 7,500 ft / 0 - 2,286 m) Btu/hr 80,750
kW 23.67
CH output rating (7,501 - 10,000 ft / 2,286 - 3,048 m) Btu/hr 78,850
kW 23.11
Energy guide
AFUE %95
Gas
Gas supply pressure Natural Gas (A) in w. c. 7.0
KPa 1.7
Min. gas supply pressure Natural Gas (A) in w. c. 3.5
KPa 0.9
Max. gas supply pressure Natural Gas (A)** in w. c. 10.5
KPa 2.6
Gas supply pressure LPG (E) in w. c. 11.0
KPa 2.7
Min. gas supply pressure LPG (E) in w. c. 8.0
KPa 2.0
Max. gas supply pressure LPG (E)** in w. c. 13.0
KPa 3.23
CH max gas rate natural gas (A)
(0 - 2,000 ft / 0 - 610 m) ft3/hr 79.07
m3/hr 2.24
(2,001 - 5,000 ft / 610 - 1,524m) ft3/hr 79.07
m3/hr 2.24
(5,001 - 7,500 ft / 1,524- 2,286 m) ft3/hr 79.07
m3/hr 2.24
(7,501 - 10,000 ft / 2,286 - 3,048 m) ft3/hr 77.21
m3/hr 2.18
DHW max Gas Rate natural gas (A)
(0 - 2,000 ft / 0 - 610 m) ft3/hr 111.63
m3/hr 3.16
(2,001 - 5,000 ft / 610 - 1,524m) ft3/hr 94.88
m3/hr 2.68
(5,001 - 7,500 ft / 1,524- 2,286 m) ft3/hr 84.65
m3/hr 2.39
(7,501 - 10,000 ft / 2,286 - 3,048 m) ft3/hr 77.21
m3/hr 2.18

9
Description Residence PRO 32 KIS (*)
Min gas rate natural gas (A)
(0 - 2,000 ft / 0 - 610 m) ft3/hr 15.81
m3/hr 0.45
(2,001 - 5,000 ft / 610 - 1,524m) ft3/hr 16.28
m3/hr 0.46
(5,001 - 7,500 ft / 1,524- 2,286 m) ft3/hr 14.42
m3/hr 0.41
(7,501 - 10,000 ft / 2,286 - 3,048 m) ft3/hr 13.02
m3/hr 0.37
CH max gas rate LPG (E)
(0 - 2,000 ft / 0 - 610 m) ft3/hr 34.00
m3/hr 0.96
(2,001 - 5,000 ft / 610 - 1,524m) ft3/hr 34.00
m3/hr 0.96
(5,001 - 7,500 ft / 1,524- 2,286 m) ft3/hr 34.00
m3/hr 0.96
(7,501 - 10,000 ft / 2,286 - 3,048 m) ft3/hr 30.40
m3/hr 0.86
DHW max gas rate LPG (E)
(0 - 2,000 ft / 0 - 610 m) ft3/hr 48.00
m3/hr 1.36
(2,001 - 5,000 ft / 610 - 1,524m) ft3/hr 38.40
m3/hr 1.09
(5,001 - 7,500 ft / 1,524- 2,286 m) ft3/hr 35.00
m3/hr 0.99
(7,501 - 10,000 ft / 2,286 - 3,048 m) ft3/hr 30.40
m3/hr 0.86
Min gas rate LPG (E)
(0 - 2,000 ft / 0 - 610 m) ft3/hr 6.80
m3/hr 0.19
(2,001 - 5,000 ft / 610 - 1,524m) ft3/hr 6.60
m3/hr 0.19
(5,001 - 7,500 ft / 1,524- 2,286 m) ft3/hr 7. 0 4
m3/hr 0.20
(7,501 - 10,000 ft / 2,286 - 3,048 m) ft3/hr 6.00
m3/hr 0.17
Number of fan rotations with slow
ignition (A)
(0 - 2,000 ft / 0 - 610 m) rpm 5,000
(2,001 - 5,000 ft / 610 - 1,524m) rpm 5,000
(5,001 - 7,500 ft / 1,524- 2,286 m) rpm 5,000
(7,501 - 10,000 ft / 2,286 - 3,048 m) rpm 5,000
Number of fan rotations max CH (A)
(0 - 2,000 ft / 0 - 610 m) rpm 7,100
(2,001 - 5,000 ft / 610 - 1,524m) rpm 8,300
(5,001 - 7,500 ft / 1,524- 2,286 m) rpm 9,200
(7,501 - 10,000 ft / 2,286 - 3,048 m) rpm 9,800
Number of fan rotations max DHW (A)
(0 - 2,000 ft / 0 - 610 m) rpm 9,800
(2,001 - 5,000 ft / 610 - 1,524m) rpm 9,800
(5,001 - 7,500 ft / 1,524- 2,286 m) rpm 9,800
(7,501 - 10,000 ft / 2,286 - 3,048 m) rpm 9,800
Number of fan rotations min CH-DHW
(A)
(0 - 2,000 ft / 0 - 610 m) rpm 2,000
(2,001 - 5,000 ft / 610 - 1,524m) rpm 2,400
(5,001 - 7,500 ft / 1,524- 2,286 m) rpm 2,400
(7,501 - 10,000 ft / 2,286 - 3,048 m) rpm 2,400
Number of fan rotations with slow
ignition (E)
(0 - 2,000 ft / 0 - 610 m) rpm 5,000
(2,001 - 5,000 ft / 610 - 1,524m) rpm 5,000
(5,001 - 7,500 ft / 1,524- 2,286 m) rpm 5,000
(7,501 - 10,000 ft / 2,286 - 3,048 m) rpm 5,000
Number of fan rotations max CH (E)
(0 - 2,000 ft / 0 - 610 m) rpm 6,750
(2,001 - 5,000 ft / 610 - 1,524m) rpm 8,750
(5,001 - 7,500 ft / 1,524- 2,286 m) rpm 9,550
(7,501 - 10,000 ft / 2,286 - 3,048 m) rpm 9,400
Number of fan rotations max DHW (E)
(0 - 2,000 ft / 0 - 610 m) rpm 9,150
(2,001 - 5,000 ft / 610 - 1,524m) rpm 9,800
(5,001 - 7,500 ft / 1,524- 2,286 m) rpm 9,800
(7,501 - 10,000 ft / 2,286 - 3,048 m) rpm 9,400
Number of fan rotations min CH-DHW
(E)
(0 - 2,000 ft / 0 - 610 m) rpm 1,850
(2,001 - 5,000 ft / 610 - 1,524m) rpm 2,350
(5,001 - 7,500 ft / 1,524- 2,286 m) rpm 2,500
(7,501 - 10,000 ft / 2,286 - 3,048 m) rpm 2,500

10
Description Residence PRO 32 KIS (*)
CH system data
Minimum relief valve capacity lbs/hr 510
g/s 64
Maximum operating pressure p.s.i. 30
bar 2.07
Minimum operating pressure p.s.i. 4.5
bar 0.3
Pump residual head at max ow rate ft. hd 4.38
mbar 130
At system capacity of gph 264
l/h 1,000
Maximum temperature °F 194
°C 90
Selection eld of heating water temperature (high temperature) °F 104-180
°C 40-82
Selection eld of heating water temperature (low temperature) °F 68-113
°C 20-45
Expansion tank charge and initial system pressure psi 14.5
bar 1
Total water content of system using 2.3 gal/9.0 l capacity expansion tank
supplied with appliance
gal 29.1
l110
DHW system data
Maximum operating pressure p.s.i. 116
bar 8
Minimum operating pressure p.s.i. 2.9
bar 0.2
Selection eld of domestic hot water temperature °F 100-140 (120 max default)
°C 37-60 (49 max default)
Minimum DHW ow rate gal/min 0.52
l/min 2.0
Flow regulator gal/min 3.7
l/min 14
Electric data
Electric rate voltage VAC - Hz 120 - 60
Current less than A0.89
Electric consumption (pump included) W107
Electrical protection rating IP X5D
Flue gas values
CO2 setting natural gas (A) high-re %8.8 ± 1%
low-re 9.4 ± 1%
CO2 setting LPG (E) high-re %9.8 ± 1%
low-re 10.4 ± 1%
NOx natural gas (A) max air free ppm ≤40
min air free ppm ≤40
NOx LPG (E) max air free ppm ≤60
min air free ppm ≤70
CO natural gas (A) max air free ppm ≤120
min air free ppm ≤20
CO LPG (E) max air free ppm ≤170
min air free ppm ≤30
Max CH rate ue temperature (A) at boiler return
temp. 140°F/60°C
°F 144
°C 62
Max CH rate ue temperature (E) at boiler return
temp. 140°F/60°C
°F 144
°C 62
Min CH rate ue temperature (A) at boiler return
temp. 140°F/60°C
°F 151
°C 66
Min CH rate ue temperature (E) at boiler return
temp. 140°F/60°C
°F 141
°C 61

11
* KIS = combi boiler
** The maximum inlet gas pressure must not exceed the value specied by the manufacturer and the minimum value listed is for
purposes of input adjustment.
(A) Natural gas
(E) LPG
Description Residence PRO 32 KIS (*)
Boiler dimensions and weight
Boiler dimensions (heigh - width- depht) in 29.13x13.7x16.5
mm 740x348x420
Weight net lbs 97
kg 40
Components
Burner Sermeta 54485
Main heat exchanger Sermeta 3+1+1 Afue 95
Gas valve Sit 849
Pump Grundfos UPS 15-58
Pressure relief valve Watts
3-Way valve for dhw Eltek

12
5.4 Hydraulic circuit
manual
air vent main heat
exchanger
return
temperature
sensor
supply temperature
sensor
water temperature
high limit
expansion
tank
automatic
air vent
pump
three-way
valve
pressure
relief
valve
drain
valve
automatic
bypass
check
valve
Low water
Cutoff
SUPPLY RETURN
lling
tap
domestic hot water
temperature sensor
DHW
heat
exchanger
ow
restrictor
owmeter
HOT
WATER
OUTLET
COLD WATER
INLET
Residence PRO 32 KIS

13
Residence PRO 32 KIS
E D C B A
Legend
A Heating return 3/4” NPT
B Cold water inlet 1/2” NPT
CGas 3/4” NPT
DHot water outlet 1/2” NPT
E Heating supply 3/4” NPT
Pressure relief valve 3/4” NPT
Drain condensate outlet Ø (rubber exible) 7/8” (21 mm)
29/16”17/8”27/8”29/16”
41/16”
213/16” 313/16”
615/16”
25/16”
3/4" NPT
1/2" NPT
3/4" NPT
1/2" NPT
3/4" NPT
Heating supply-Pressure relief valve
3/4" NPT 3/4" NPT
Hot water
outlet
1/2" NPT
Gas
3/4" NPT
Cold water
inlet
1/2" NPT
Heating return
3/4" NPT
3/4" NPT
FEMALE
condensate
check valve
29/16” 29/16”43/4”

14
5.5 Dimensions and connections
16
1/2”
29 1/8”
71/16” 71/16”
31/4”
13 3/4”
57/8”
615/16”
215/16”
61/2” 43/4” 51/4”
5
7/8”
1 in
25 mm
7 7/8 in 20 mm
1 in
25 mm
13 3/4"
5 7/8"
29 1/8"
2 5/16"
6 15/16"
18 in.
Recommended Minimum service clearances

15
6 BEFORE INSTALLATION
R strongly recommends that this manual be reviewed
thoroughly before installing your Residence PRO boiler.
Please review section “3 Safety” page 4 before installing the
boiler. Factory warranty does not apply to boilers that have been
improperly installed or operated.
Installation and service must be performed by a qualied installer,
service agency or gas supplier. If, after reviewing this manual, you
still have questions which this manual does not answer, please
contact your l ocal R distributor (egproductsolutions.com or
email [e-mail]) . Thank you for purchasing
this R product. We hope you will be satised with the high
quality and durability of our equipment.
6.1 Installations must comply with:
−Local, state, provincial, and national codes, laws, regulations
and ordinances.
−National Fuel Gas Code, ANSI Z223.1/NFPA 54 – latest edition.
−National Electrical Code.
−For Canada only: CAN/CSA B149.1 Installation Code, CSA C22.1
Canadian Electrical Code Part 1 and any local codes.
Residence PRO boiler must be installed indoors in a dry location
where the ambient temperature must be maintained above
freezing and below 100°F [38°C]. All boiler components must be
protected from dripping, spraying water, or rain during operation
and servicing. Consider the proximity of system piping, gas and
electrical supply, condensate disposal drain, and proximity to
vent termination when determining the best boiler location.
The boiler is both for closet and alcove installation.
Closet Installations
CLOSET INSTALLATION
0 in./0 mm between the back of the unit and the wall.
Alcove Installations
Alcove installations have the same minimum clearances as
closet installations, except the front must be completely open
to the room at a distance no greater than 18 in. [457 mm] from
the front of the boiler and the room is at least three (3) times the
size of the alcove. Provided these conditions are met, the boiler
requires no extra ventilation air openings to the space.
Residential Garage Installation
When installed in a residential garage, mount the boiler a
minimum of 18 in. [457 mm] above the oor. Locate or protect the
boiler so it cannot be damaged by a moving vehicle. Check with
your local authorities for other possible regulations pertaining to
the installation of a boiler in a garage.
6.2 Before locating the Residence PRO boiler
Check for nearby connections to:
−System water piping
−Venting connections
−Gas supply piping
−Electrical power.
Check area around boiler. Remove any combustible materials,
gasoline and other ammable liquids.
9 WARNING: Failure to keep boiler area clear and free of
combustible materials, gasoline and other ammable
liquids and vapors can result in severe personal injury,
death or substantial property damage.
The Residence PRO must be installed so that gas control system
components are protected from dripping or spraying water or
rain during operation or service.
If the new Residence PRO is to replace an existing boiler, check
for and correct any existing system problems such as:
−System leaks
−Incorrectly-sized expansion tank
−Lack of freeze protection in the heating system causing the
system and boiler to freeze and leak
−Excessive glycol which will affect the boiler system operation.
6.3 Clearances for service access
See “5.5 Dimensions and connections” page 14 for
recommended service clearances. If you do not provide the
minimum clearances shown, it might not be possible to service
the boiler without removing it from the space.
9 WARNING: The space must be provided with combustion/
ventilation air openings correctly sized for all other
appliances located in the same space as the Residence PRO
boiler. The boiler front cover must be securely fastened
to the boiler to prevent the boiler from drawing air from
inside the boiler room in a sealed combustion application.
This is particularly important if the boiler is located in the
same room as other appliances. Failure to comply with the
above warnings could result in severe personal injury, death
or substantial property damage.
6.3.1 Exhaust vent and intake air vent
Residence PRO are certied to the ANSI Z21.13-2017 CSA 4.9-2017
– Gas-Fired low pressure steam and hot water boilers. Direct
vent, Category IV (pressurized vent, likely to condense in the
vent) appliances.
9 NOTICE: To prevent combustion air contamination when
considering the exhaustvent and intake air vent termination,
intake and exhaust may be vented vertically through the
roof or out a side wall.
The intake and exhaust venting methods are detailed in
the General venting Section. Do not attempt to install the
Residence PRO boiler using any other means. Be sure to locate
the boiler such that the air intake and exhaust vent piping can
be routed through the building and properly terminated. The air
intake and exhaust vent piping lengths, routing and termination
method must all comply with the methods and limits given
within the Venting section.

16
6.4 Prevent combustion air contamination
Install intake air piping for the Residence PRO as described in
the Venting section. Do not terminate exhaust in locations that
can allow for contamination of the intake air.
9 WARNING: You must pipe outside air to the boiler air intake for
sealed combustion operation. Ensure that the intake air will
not contain any of the contaminants below. Contaminated
air will damage the boiler, resulting in possible severe
personal injury, death or substantial property damage. For
example, do not pipe the intake air vent near a swimming
pool. Also avoid areas subject to exhaust fumes from laundry
facilities. These areas may contain contaminants.
6.5 When removing an existing boiler from an
existing common vent system
Do not install the Residence PRO boiler into a common vent with
any other appliance. This will cause ue gas spillage or appliance
malfunction, resulting in possible severe personal injury, death
or substantial property damage.
9 WARNING: Failure to follow all instructions can result in
ue gas spillage and carbon monoxide emissions, causing
severe personal injury or death.
When an existing boiler is removed from a common venting
system, the common venting system is likely to be too large for
proper venting of the appliances remaining connected to it.
At the time of removal of an existing boiler, the following steps
shall be followed with each appliance remaining connected
to the common venting system placed in operation, while the
other appliances remaining connected to the common venting
system are not in operation.
A Seal any unused openings in the common venting system.
B Visually inspect the venting system for proper size and
horizontal pitch and to determine there is no blockage or
restriction, leakage, corrosion and other deciencies which
could cause an unsafe condition.
C Insofar as is practical, close all building doors and windows
and all doors between the space in which the appliances
remaining connected to the common venting system are
located and other spaces of the building, so long as it is
practical to do so. Turn on clothes dryers and any appliance
not connected to the common venting system. Turn on any
exhaust fans, such as range hoods and bathroom exhausts,
so they will operate at maximum speed. Do not operate a
summer exhaust fan. Close replace dampers.
D Place in operation the appliance being inspected. Follow
the lighting instructions. Adjust thermostat so the appliance
will operate continuously.
E Test for spillage at the draft hood relief opening after 5
minutes of main burner operation. Use the ame of a match
or candle, or smoke from a cigarette, cigar or pipe.
F After it has been determined that each boiler remaining
connected to the common venting system properly vents
when tested as outlined above, return doors, windows,
exhaust fans, replace dampers and any other gas burning
boiler to their previous condition of use.
G Any improper operation of the common venting system
should be corrected so the installation conforms with the
National Fuel Gas Code, ANSI Z223.1/NFPA 54 — latest edition.
Correct by resizing to approach the minimum size as
determined using the appropriate tables in ANSI Z223.1/NFPA
54 of that code. Canadian installations must comply with
CAN/CSA B149.1 Installation Code.
9 WARNING: Verify proper operation after servicing.
6.6 Prepare the Residence PRO
9 CAUTION: Cold weather handling — If boiler has been stored
in a very cold location (below 0°F (-18°C)) before installation,
handle with care until the plastic components come to room
temperature.
7 INSTALLATION
7.1 Wall mounting information
Residence PRO comes with a template, which allows you to
easily mark the location of the screws for the mounting bracket
and the location of the ue gas pipe on the wall.
The gas connection must be made on site, a 3/4” gas cock is
supplied with the boiler.
9 WARNING: This boiler is heavy and awkward to lift. It is
recommended and safer to install the boiler with two
people. Use caution as to not drop the boiler which could
cause personal injury. Verify that the boiler is securely
mounted before leaving the boiler unsupervised.
The wall must be vertically plumb and capable of carrying the
weight of the Residence PRO and its related components.
9 CAUTION: If the Residence PRO is not vertically plumb,
improper and unsatisfactory operation may occur. This
will cause excessive condensation build-up resulting in
unnecessary maintenance and nuisance fault codes.
9 NOTICE: The mounting bracket is shown for installation of the
Residence PRO 32 KIS boiler.
7.1.1 Placing the wall-mounted Residence PRO
boiler
Residence PRO boilers are wall mounted. Use only the
Residence PRO wall mounting instructions included in the box.
9 WARNING: The wall must be capable of carrying the
weight of the boiler and its related components. The
shipping weights of the boiler are approximately:
Residence PRO 32 combi =89 lbs (40.5 kg)
Failure to comply with above could result in severe personal
injury, death or substantial property damage.

17
7. 2 Boiler template
RESIDENCE PRO 32 combi
( (7 1( (((
((
7.2.1 Installation steps
Prior to lifting the Residence PRO boiler onto the wall, use the
enclosed template to level and locate the wall bracket.
- Fasten the boiler sup port plate to the wall and use a spirit level
to make sure it is perfectly horizontal.
- Mark the placement of the 2 holes for securing the boiler
support plate make sure that all measurements are exact, then
drill the wall using drill tips with the diameters indicated on the
wall template.
- Fix the plate, using the wall template, to the wall.
- Hang the boiler.
- Fix the pressure relief valve (PRV) ad described on the wall
template.
- Install the condensate check valve dispositive.
- Install the hydraulic connections.
- Install the gas valve main supply.
- Install the exhaust ue and intake air piping.
- Carry out the electrical connection according to local code
rules.
7.3 ASME pressure relief valve
The Residence PRO has a pressure relief valve supplied with the
boiler.
Connect the valve hydraulically on the heating supply connection
and in vertical position ( see reference picture).
This device is designed for emergency safety relief and shall not
be used as an operating control.
9 WARNING: To avoid water damage or scalding due to
relief valve operation:
−The discharge line must be connected to relief valve outlet
and run to a safe place of disposal. Terminate the discharge
line in a manner that will prevent possibility of severe burns
or property damage.
−The discharge line must be as short as possible and be the
same size as the valve discharge connection throughout its
entire length.
−The discharge line must pitch downward from the valve and
terminate at least 6’’ (152 mm) above the oor drain where
any discharge will be clearly visible.
−The discharge line shall terminate through plain (unthreaded)
pipe. The discharge line material must conform to local
plumbing code or A.S.M.E. requirements.
−No shutoff valve shall be installed between the relief valve
and the boiler, or in the discharge line.
−Do not pipe the discharge to any place where freezing could
occur.
−Do not plug or place any obstruction in the discharge line.
−Test the operation of the valve after lling and pressurizing
system by lifting the lever. Make sure the valve discharges
freely. If the valve fails to operate correctly, replace it with a
new relief valve.
−For boilers installed with only a pressure relief valve, the
indirect storage tank (if used) must have a temperature and
pressure relief valve installed. This relief valve shall comply
with the standard for Relief Valves for Hot Water Supply
Systems, ANSI Z21.22/CSA4.4.
−Failure to comply with the above guidelines could result
in the failure of the relief valve to operate, resulting in the
possibility of severe personal injury, death or substantial
property damage.
−For safe operation of the water heater, the relief valve must
not be removed or plugged.

18
Maintenance of the relief valve
9 CAUTION: The valve lever must be operated at least once a
year by qualied personnel during annual maintenance to
insure that water-ways are clear.
Certain natural occurring mineral deposits may adhere to the
valve, rendering it inoperative. When manually operating the
lever, water will discharge and precautions must be taken
to avoid contact with hot water and to avoid water damage.
Before operating the lever, check to see that a discharge line is
connected to this valve directing the ow of hot water from the
valve to a proper place of disposal, otherwise personal injury
may result. If no water ows, the valve is inoperative.
Call a qualied plumber immediately.
Pressure relief valve should be inspected at least once every three
years by a licensed plumbing contractor or authorized inspection
agency, to insure that the product has not been affected by
corrosive water conditions and to insure that the valve and
discharge line have not been altered or tampered with illegally.
Certain naturally occurring conditions may corrode the valve or
its components over time, rendering the valve inoperative. Such
conditions are not detectable unless the valve and its components
are physically removed and inspected. Do not attempt to conduct
this inspection on your own. Contact your plumbing contractor for
a reinspection to assure continuing safety.
9 WARNING: Failure to reinspect this valve as directed could
result in unsafe pressure buildup which can result in serious
injury or death and/or severe property damage.
7.4 Installing the condensate check valve
It is mandatory, before star ting the boiler, even just temporarily, to
install the condensate check valve supplied as standard.
For the installation proceed as follows:
- remove the plug (T) from the condensate trap
- carefully secure the condensate check valve, screwing it on
tight and checking its seal
- connect a pipe for draining the condensate to a suitable
collection and evacuation system in the white water outlet and
in compliance with cu rrent legislation.
9
Tcondensate
check valvecondensate pipe
WARNING: The manufacturer is NOT responsible for any
damage caused by the installation of the boiler without the
condensate check valve being correctly positioned. An
improperly installed or damaged condensate check valve
may result in substantial property damage, severe personal
injury or death.
Install the exible condensate drain pipe (Ø 7/8” - 21 mm exible
rubber female connection) with a suitable gradient to avoid
condensate stagnation.
Discharge condensate from the boiler into the drainage system,
either directly or (if required) via a neutralizer kit (not supplied).
The condensate drain of the boiler is equipped with a built-
in condensate trap in order to keep ue gases from being
discharged via the condensate drain.
The condensate formed both in the condensing boiler and in the
ue gas pipe must be discharged into the public sewage system
in accordance with all applicable local regulations.
The condensate produced by a gas-red heating system has a
pH value between 3 and 4.
Some local codes may require the use of a separate neutralizer
kit to treat the aggressive and corrosive condensate.
With a neutralizer kit installed, all condensate from the boiler
and the ue gas pipe enters into the neutralizer kit where it is
treated and released into the public sewage system with a safe
pH value of above 6.5.
The use of neutralization granulate (performing the neutralizing
process) is dependent on the operation of the heating system.
To determine the required rell amount, check granulate level
several times during the rst year of operation. In some cases one
granulate ll may last an entire year.
The condensate discharge outlet to the drainage system
connection must be clearly visible. It must be installed with a
suitable gradient and provided with a stench trap.
If the condensate outlet of the boiler is lower than the drain, a
condensate pump must be used.
Only corrosion-resistant materials may be used for condensate
drainage purposes (e.g. braided hose). Do not use galvanized
materials or materials containing copper for piping, couplings etc.
Please note that other requirements may apply depending on
local regulations and/or project-specic details.
It is advisable to contact your local waterworks ofce (authority
responsible for waste water regulations) well before commencing
with the installation of the neutralizer kit in order to establish
details of local regulations that apply.
9 NOTICE: Pipe ventilation must take place between the
condensate trap and the neutralizer kit (if applicable).
7. 5 General piping information
9 CAUTION: Use two wrenches when tightening water piping
at the boiler, using one wrench to prevent the boiler return
line or supply line from turning. Failure to support the boiler
piping connections to prevent them from turning could
cause damage to boiler components.
9 NOTICE: The Residence PRO boiler control module uses
temperature sensors to provide both high limit protection
and modulating temperature control. The PCB also provides
low water protection using a water pressure sensor
(minimum 6.5 psi (0.45 bar)). Some codes/jurisdictions may
require additional external controls for high limit and/or low
water cutoff protection.
7.5.1 Separate low water cutoff
A low water cutoff may be required by state local code or
some insurance companies. Check code requirements before
installation of the Residence PRO boiler. If required:
−Use a low water cutoff designed for hydronic installations
−Follow low water cutoff manufacturer’s instructions.
A hot water boiler installed above the radiation level or as
required by the Authority having jurisdiction, must be provided
with a low water cutoff device either as part of the boiler or at
the time of boiler installation.
Note: The electronic low water cutoff located internally in the
Residence PRO 32 KIS is below the lowest safe permissible water
level established by the boiler manufacturer.
7.5.2 Fitting the heating circuit supply and
return pipes
9 NOTICE: To protect the entire heating system R
recommends installing a Y-Strainer in the return circuit.
When connecting the boiler to an existing heating system
this device must be installed.
−Install shut-off valves immediately before and after the
Y-Strainer to enable the Y-Strainer to be cleaned.
−Install a ll valve and drain valve in the heating system supply
pipe if required.
−Also plumb the pressure relief valve to the drain system.
9 NOTICE: When using oxygen-permeable pipes, e. g. for oor
heating systems, you must separate the system using heat
exchangers.
−Thoroughly ush all pipes and radiators.
−Refer to the installation wall template for the pipe connection
dimensions.
−Connect the pipes so that they are free from strain.

19
7.5.3 Sizing space heat system piping
Size the piping and components in the space heating system
using recognized design methods.
9 NOTICE: The boiler, when used in connection with a
refrigeration system, must be installed so the chilled
medium is piped in parallel with the boiler and with
appropriate valves to prevent the chilled medium from
entering the boiler.
9 NOTICE: The boiler piping system of a hot water boiler
connected to heating coils, located in air handling units,
where they may be exposed to refrigerated air circulation
must be equipped with ow control valves or other
automatic means to prevent gravity circulation of the boiler
water during the cooling cycle.
7.5.4 Available Pump Head (ft. hd.)
The boiler is designed for closed loop, forced circulation hot
water heating systems only.
Residence PRO boiler is equipped with an internal pump.
PUMP DUTY
Residual head of circulator
The residual head for the heating system is represented in the
graph, according to the ow rate. The piping on the heating
system must be sized taking into account the available residual
head value.
Bear in mind that the boiler will operate correctly if there is
sufcient water circulation in the heat exchanger, as the boiler
is tted with an automatic by-pass which is designed to ensure
water ow rate into the heat exchanger is correct under any
installation conditions.
9 CAUTION: The Residence PRO must not be operated in an
open system.
0.00
2.00
4.00
6.00
8.00
1
0.00
1
2.00
1
4.00
1
6.00
1
8.00
20.00
0.000 1.000 2.000 3.000 4.000 5.000 6.000
Residual head []
Flow rate [gpm]
74 W
Prevalenza residua disponibile all'impianto
Caldaia Residence PRO 32 KI-KIS
Residual head (ft)
Flow rate (gpm)
1st
speed
2nd
speed
3rd
speed
7. 6 Making the gas connection
9 DANGER: Only carry out work on gas piping and connections
if you are licensed for such work.
−Determine proper size gas pipe for the installation according
to the general and local rules.
−Do not forget the pipe connection losses and observe proper
size of the ttings.
−Install the furnished 3/4” female gas cock on the gas
connection (3/4” male on the boiler).
−Connect the gas pipe to the gas cock so that it is free from any
strain.
9 WARNING: Failure to keep boiler area clear and free of
combustible materials, gasoline and other ammable
liquids and vapors can result in severe personal injury,
death or substantial property damage.
9 WARNING: Before carrying out the connection, check that
the type of gas is that for which the appliance is set up.
9 WARNING: Remove any combustible materials, gasoline and
other ammable liquids away from the hot water pipes.
9 WARNING: The boiler and its gas connections must be leak
tested before placing the boiler in operation.
9 CAUTION: The boiler 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
1/2 psi (3.5 kPa).
9 WARNING: Before starting the Residence PRO, and during
initial operation, smell near the oor and around the boiler
for gas or any unusual odor. Do not proceed with start-up if
there is any indication of a gas leak. Repair any leak at once.
9 WARNING: for LPG boilers only — Your propane supplier mixes
an odorant with the gas to make its presence detectable.
In some instances, the odorant can fade, and the gas may
no longer have an odor. Before start-up (and periodically
thereafter), have the LPG supplier verify the correct odorant
level in the gas.
9 WARNING:
−Cover endangered positions before leak testing.
−Do not spray the leak testing agent onto cables, plugs or
electrical connection lines.
−Do not allow it to drip onto them either.
9 DANGER: Leaks may be caused to pipes and screw connections
during commissioning and maintenance activities.
- Carry out a proper leak test.
- Only use approved leak detection agents for leak detection.
- Disconnect the heating system from the power supply.
−Check the exterior tightness of new pipe sections up to
and including the direct sealing point on the gas burner
connection.
A = Union
B = Manual main gas shutoff valve (supplied but not installed)
A
B
9 NOTICE: When installing the gas supply connection, it must
comply with local regulations or, if such regulations do not
exist, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54
in the United States. In Canada, the gas supply connection
must comply with local regulations or, if such regulations
do not exist, with CAN/CSA B149.1, Natural Gas and Propane
Installation Code. A sediment trap must be provided
upstream of the gas controls.
9 NOTICE: The boiler must be isolated from the gas supply
piping system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping system
at test pressures equal to or less than 1/2 psi (3.5 kPa).
7.7 Electrical connections
The SC07 front control is connected to the main PCB of the boiler
from which it also receives power; for electrical connections please
refer to the section “9 Multiwire wiring diagram” page 36.
A qualied electrician has to connect the electrical supply to the
appliance. If controls – external to the appliance – are required,
a competent person must undertake the design of any external
electrical circuits.
Wiring to the appliance must be rated for operation in contact
with surfaces up to 194°F (90°C).

20
9 WARNING: If an external electrical source is utilized, the
boiler, when installed, must be electrically bonded to
ground in accordance with the requirements of the authority
having jurisdiction or, in the absence of such requirements,
with the National Electrical Code, ANSI/NFPA 70 and/or the
Canadian Electrical Code Part 1, CSA C22.1, Electrical Code.
9 WARNING: ELECTRICAL SHOCK HAZARD — For your safety, turn
off the electrical power supply at service entrance panel
before making any electrical connections to avoid possible
electric shock hazard. Failure to do so can cause severe
personal injury or death.
9 NOTICE: The boiler must be electrically grounded as required
by National Electrical Code ANSI/NFPA 70 — latest edition.
9 CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after servicing.
Low voltage connections
Carry out the low voltage connections as follows:
−use the external low voltage terminal box supplied
−unscrew the xing screws of the cover (V)
−carry out the connections as shown in the gure below
V
V1
1-2-
3-4
(- A B +) Bus 485
5 W Room thermostat-heating
6 R Room thermostat-power (24V)
7-8 TBOL Not used
9-10 TBT Low temperature limit thermostat
11-12 SE Outdoor temperature sensor
13-14 OT+ Open therm (OTBus)
15-16 SBOL Not used
17-18 X1 Not used
19 Not used
20 C Common
1235678910 11 12 13 14 15 16 17 18 19 20
4
-AB+TBOL SE OT+ SBOL X1 C
WTBT
R
24V
9 CAUTION: It is recommended to use wires not exceeding
20 AWG (0.5 mm2). All wiring must be in accordance with
local codes and the National Electrical Code ANSI/ NFPA 70
- latest edition. In Canada, the installation must conform
to CSA C22.1 Canadian Electrical Code Part 1 and any local
codes.
9 NOTICE. In case of W, R or TBT connection, remove the
respective jumpers.
- Close the box with the screws that were previously removed
- Press the two tabs on the sides of the box to place it correctly
in its housing in the boiler sliding upwards within the rails
and tighten
- Tighten the safety screw V1 (supplied with the connection
box).
9 NOTICE: If the low voltage electrical connection box is not
connected the boiler does not ignite.
Remote control OTBus
In case the boiler is connected to a remote control OTBus, the
boiler display shows the “ OT+ ” message.
7.7.1
RESET
MENU
OT+
OK
MODE
OT and Room Thermostat connection to
the boiler
The Residence PRO 32 KIS boilers have the ability to communicate
with OT (OpenTherm) thermostats such as the Riello RiCLOUD,
sold as an accessory.
When using the RiCLOUD thermostat it, or the WiFi box it is
communicating with, needs to be connected to terminals 13 and
14 of the low voltage terminal box.
9 NOTICE: If the RiCLOUD thermostat is to be used only for it’s
WiFi capability and another ON/OFF thermostat is to be used
to activate a request for heat using terminals 5 and 6 of
low voltage terminal box; then, a jumper will need to be
connected terminals 1 and 2 on the X21 connector the PCB as
shown below.
X16
X2
X21
X8
X13
X19
X25
1
1
1
1
11
10 4
3546
1
2
3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
4
+
Bus 485
Room thermostat-heating
Room thermo stat - power (+24 Vac )
Aquastat
(heating only model)
Low temperature
limit thermostat
Outdoor temperature sensor
Opentherm (OTBus)
Indirect tank sensor
(heating only model)
Not used
Not used
Common
-
A
B
TBOL
SE
OT+
SBOL
X1
C
W
TBT
R
RiCLOUD OT
ZONE VALVE END SWITCH
(remove the bridge)
jumper to
connector X21