RBI Infinite Energy2 IW199 User manual

Heater Manual
Installation and Operation
Instructions
This manual is intended only for use by a qualied heating installer/technician. Read and follow this manual, all supplements and
related instructional information provided with the boiler. Install, start and service the boiler only in the sequence and methods
given in these instructions. Failure to do so can result in severe personal injury, death or substantial property damage.
Do not use the boiler during construction. Construction dust and particulate, particularly drywall dust, will cause contamination
of the burner, resulting in possible severe personal injury, death or substantial property damage. The boiler can only be operated with
a dust-free air supply. Follow the instruction manual procedures to duct air to the boiler air intake. If the boiler has been contaminated
by operation with contaminated air, follow the instruction manual guidelines to clean, repair or replace the boiler if necessary.
Affix these instructions near to the boiler. Instruct the building owner to retain the instructions for future use by a qualified service
technician, and to follow all guidelines in the User’s Information Manual.
Condensing,
High Efficiency
IW Water Heaters
IE2IWIOM-1
82-0147-002
62403822 R00 July. 01, 2020
THIS MANUAL APPLIES TO
APPLIANCE WITH SERIAL
NUMBER HIGHER THAN 20440001.

2
SAFETY INSTRUCTIONS
- Do not store or use gasoline or other
ammable vapors and 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 re department.
- Installation and service must be performed
by a qualied installer, service agency or
the gas supplier.
WARNING: If the information in these
instructions is not followed exactly, a re
or explosion may result causing property
damage, personal injury or death.

3
SAFETY INSTRUCTIONS

4
- Ne pas entreposer ni utiliser d’essence
ou ni d’autres vapeurs ou liquides
inammables à proximité de cette appareil
ou de tout autre appareil.
- QUE FAIRE SI VOUS SENTEZ UNE ODEUR
DE GAZ:
• Ne pas tenter d’allumer l’appareil.
• Ne touchez à aucun interrupteur, ne
pas vous servir des téléphones se
trouvant dans le bâtiment.
• Appelez immédiatement votre
fournisseur de gas de puis un voisin.
Suivez les instructions du fournisseur.
• Si vous ne pouvez rejoindre le
fournisseur, appelez le service des
incendies.
- L’installation et l’entretien doivent être
assurés par un installateur ou un service
d’entretien qualié ou par le fournisseur
de gaz.
AVERTISSMENT: Assurez vous de bien
suivre les instructions données dans
cette notice pour réduire au minimum
le risque d’incendie ou d’explosion ou
pour éviter tout dommage matériel, toute
blessure ou la mort
SAFETY INSTRUCTIONS
Un temperature de l’eau au dessus de
125°F (52°C), peut causer de graves
brulures instantanément, ou la mort par
échaudure.
Les enfants, les personnes handicapées
ou âgées sont plus à risque d’être
échaudées
Voir le manuel d’instruction avant de
régler la température de l’eau sanitaire
Sentir la temperature de l’eau sanitaire
avant un bain ou une douche
Limiteurs de temperature sont disponible,
voir le manuel
121110m0_d
Chaude

5
SAFETY INSTRUCTIONS

6
WARNING!!!
Flue gas/air
intake: You are only permitted
to operate this appliance with
the combustion air/ue gas
system that has been specically
designed and approved. Failure
to follow these instructions
could result in excessive levels
of carbon monoxide which can
cause severe personal injury or
death!
WARNING!!!
Flue gas/air
intake: Do not obstruct the air
intake or vent pipe terminals.
Failure to take proper precautions
can result in excessive levels
of carbon monoxide which can
cause severe personal injury or
death!
WARNING!!!
Flue gas/air
intake: If appliance installation
is provided as replacement
appliance, DO NOT connect new
appliance venting to an existing
vent system, if it is shared with
other appliances. Failure to follow
these instructions could result
in excessive levels of carbon
monoxide which can cause severe
personal injury or death!
WARNING!!!
Flue gas/air
intake terminals: Do not restrict
or seal any air intake or outlet
openings (terminals). Failure to
follow these instructions could
result in excessive levels of carbon
monoxide which can cause severe
personal injury or death!
WARNING!!!
Hazards and
Your Safety - Hot Water Can Scald!
Water temperature over 125°F
(52°C) can cause severe burns
instantly, or death from scalds.
Children, the disabled, and the
elderly are at highest risk of being
scalded; see instruction manual
before setting temperature at
appliance! Feel water before
SAFETY INSTRUCTIONS
WARNING!!!
Installer: Read all instructions,
including this manual, before
installing. Perform steps in the
order given.
User: This manual is for use only
by a qualied heating installer.
Refer to the User’s Information
Manual for your reference.
Maintenance: At least once a
year the user must call a
Qualied installer for routine
maintenance.
Failure to comply with these
provisions can cause a re or
explosion causing property
damage, personal injury, or
death.
WARNING!!!
If the
information in this manual is
not followed exactly, can result
in a re or explosion causing
property damage, personal
injury, or death.
WARNING!!!
Qualied
installer: qualied installer is
an individual with specic,
technical training in space
heating systems, domestic hot
water systems, fuel gas systems
and electrical systems. This
individual must have the legally
required qualications. Failure
to comply with these provisions
can cause a re or explosion
causing property damage,
personal injury, or death.
WARNING!!!
Installation
and Alterations: Only a Qualied
installer must carry out the
installation and calibration of
the appliance. Never modify
the appliance or its ue gas
carrying components in any
way. This appliance must be
properly vented. Failure to
follow these instructions could
result in personal injury or
death!
bathing or showering.
NOTICE! Local approval of the ue
system and the condensate
connection to the public sewer
system may be required.
NOTICE! The local building regulations
stipulating the installation rules at
the time of installation.
CAUTION!!!
Installation location:
The appliance must be located
in an area where leakage of the
tank or connections will not
result in damage to the area
adjacent to the appliance or to
lower oors of the structure.
When such locations cannot be
avoided, it is recommended that
a suitable drain pan, adequately
drained, be installed under the
appliance. The pan must not
restrict combustion air ow.
CAUTION!!!
Installation
location: The appliance must
not be installed on carpeting.
WARNING!!!
Defects: If
you nd any defects, you must
inform the owner of the system
of the defect and the associated
hazard in writing. Failure to
follow these instructions could
result in excessive levels of
carbon monoxide a re or
explosion which can cause
severe personal injury or death!
CAUTION!!!
In the event of a
breakdown and/or malfunction
of the appliance, turn o󰀨 the unit
and do not make any attempt
to repair it. The appliance must
be serviced exclusively by a
Qualied installer using original
spare parts. Failure to comply
with this requirement may
compromise the safety of the
unit.
WARNING!!!
When servicing
appliance, to avoid electric shock,
disconnect electrical supply
before performing maintenance.
Failure to do so can cause severe
personal injury or death.

7
SAFETY INSTRUCTIONS
WARNING!!!
When
servicing appliance, to avoid
severe burns, allow appliance
to cool before performing
maintenance. Failure to do so
can cause severe personal
injury or death.
WARNING!!!
Label all
wires prior to disconnection
when servicing controls. Wiring
errors can cause improper
and dangerous operation.
Verify proper operation after
servicing. Failure to follow these
instructions can cause cause
a re or explosion causing
property damage, personal
injury, or death.
ATTENTION!!!
Au moment
de l’entretien des commandes,
étiquetez tous les ls avant de
les débrancher. Des erreurs
de câblage peuvent entraîner
un fonctionnement inadéquat
et dangereux. S’assurer
que l’appareil fonctionne
adéquatement une fois
l’entretirn terminé.
WARNING!!!
Should
overheating occur or the gas
supply fail to shut o󰀨, do not
turn o󰀨 or disconnect electrical
supply to circulator. Instead,
turn o󰀨 the manual gas shut-o󰀨
valve external to the appliance.
Failure to follow these
instructions could result in re
or explosion which can cause
severe personal injury or death!
ATTENTION!!!
En cas de
surchaue ou si l’alimentation
de gaz ne peut être coupée,
ne pas couper ni débranch
l’alimentation électrique de la
pompe. Fermer plutôt le robinet
d’admission de gaz à l’extérieur
de l’appareil
WARNING!!!
Do not use
this appliance if any part has
been under water. Immediately
call a licensed authorized
technician to inspect the
appliance and to replace any
part of the control system and
any gas control, which has
been under water. Failure to do
so can cause severe personal
injury or death.
ATTENTION!!!
N’utilisez pas
cet appareil s’il a été plongé
dans l’eau, même partiellement.
Faites inspecter l’appareil
par un tecnicien qualié et
remplacez toute partie du
système de contrôle et toute
commande qui ont été plongés
dans l’eau.
WARNING!!!
Ensure the
appliance and its controls are
protected from dripping or
spraying water during normal
operation or service. Failure
to do so can cause severe
personal injury or death.
NOTICE! When calling or writing about
the appliance – Please have
the appliance model and serial
number from the appliance rating
plate.
NOTICE! Any claims for damage or
shortage in shipment must be
led immediately against the
transportation company by the
consignee.
WARNING!!!
Only use the
appliance in the combinations
and with the accessories and
spares listed in this manual.
Failure to do so can cause
severe personal injury or death.
WARNING!!!
For safety
and environmental reasons,
the packing materials must
be properly disposed of. Any
replaced part or packaging
should never be left within the
reach of children. Failure to
follow these instructions could
result in severe personal injury
or death!
CAUTION!!!
Do not use
“homemade cures” or
“appliance patent medicines”.
Serious damage to the
appliance, personnel, and/or
property may result.
CAUTION!!!
Do not use
petroleum-based cleaning
or sealing compounds in the
appliance system. Gaskets
and seals in the system may
be damaged. This can result in
substantial property damage.
NOTICE! The manufacturer declines
all liability, contractual or otherwise
(warranty included), for any
damage to people, animals
property or this same appliance,
caused by:
a) - incorrect installation;
b) - failure to comply with this or any
other instruction provided by the
manufacturer;
c) - failure to comply with the applicable
local and/or national regulations in
force;
d) - incorrect use of this appliance;
e) - inadequate or incorrect service;
f) - inadequate or incorrect
maintenance.

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MODIFICARE DATA + AGGIUGERE SERIAL NUMBER E CODICE LORO....................................1
SAFETY INSTRUCTIONS .................................................................................................................2
TABLE OF CONTENTS .....................................................................................................................8
1 - CODE REQUIREMENTS............................................................................................................12
1.1 - Regulations and guidelines ................................................................................................................................ 12
2 - GENERAL INFORMATION.........................................................................................................14
2.1 - Key to symbols used .......................................................................................................................................... 14
2.2 - Manufactured by ................................................................................................................................................ 14
2.3 - Description of models: ........................................................................................................................................ 14
2.4 - Accessories included .......................................................................................................................................... 14
3 - MAIN COMPONENTS ................................................................................................................15
4 - FUNCTION OVERVIEW .............................................................................................................26
4.1 - Intended use and functions ................................................................................................................................ 30
5 - INSTALLATION - Location ........................................................................................................31
5.1 - Choosing the installation location ....................................................................................................................... 31
5.1.1 Prevent combustion air contamination ....................................................................................................................... 35
5.1.2 Location ...................................................................................................................................................................... 35
5.2 - Residential garage installation ........................................................................................................................... 36
5.3 - Closet and alcove installations ........................................................................................................................... 36
5.4 - Clearances for installation and servicing ............................................................................................................ 36
5.5 - Clearances from combustible material ............................................................................................................... 36
5.6 - Vent and combustion air piping .......................................................................................................................... 36
5.7 - Prevent combustion air contamination ............................................................................................................... 36
6 - INSTALLATION - Mounting the appliance ...............................................................................38
6.1 - Transporting the appliance ................................................................................................................................. 38
6.2 - Mounting the appliance ...................................................................................................................................... 39
6.3 - Dimensions ........................................................................................................................................................ 39
7 - INSTALLATION - Water connections .......................................................................................42
7.1 - Water connections .............................................................................................................................................. 42
7.2 - Local pump and water ow limits ......................................................................................................................... 42
7.3 - Quality of the water ............................................................................................................................................ 42
7.4 - Near appliance piping components .................................................................................................................... 44
7.5 - Temperature and pressure Relief valve ............................................................................................................. 45
7.6 - Expansion Tank .................................................................................................................................................. 46
7.7 - Sizing water system ........................................................................................................................................... 46
7.8 - Anti-legionella ................................................................................................................................................................................ 46
7.9 - Scalding ............................................................................................................................................................. 46
8 - INSTALLATION - Condensate disposal ...................................................................................49
9 - INSTALLATION - Electrical connections .................................................................................51
9.1 - Electrical connections: overview ........................................................................................................................ 51
9.1.1 - Connecting the power supply cable ......................................................................................................................... 52
9.1.2 - Connection to an analog 0-10Vcc input ................................................................................................................... 53
9.1.3 - Connection to a MODBUS protocol.......................................................................................................................... 53
9.1.4 - Connection to a LWCO device ................................................................................................................................. 53
9.1.5 - Alarm contact............................................................................................................................................................ 53
9.2 - Connecting the appliance to a storage tank ....................................................................................................... 54
9.3 - Connecting the appliance without storage tank ................................................................................................. 55
9.4 - Connecting the appliance in cascade ................................................................................................................ 56
10 - INSTALLATION - Removing of an appliance from a common venting system .................57
11 - INSTALLATION - CATEGORY IV: Vent and combustion air .................................................58
11.1 - CATEGORY IV: Positive pressure condensing ................................................................................................ 58
11.2 - CATEGORY IV: Venting and air piping systems ............................................................................................... 58
11.3 - Minimum / Maximum allowable combustion air and vent piping lengths .......................................................... 60
TABLE OF CONTENTS

9
11.4 - Install vent and combustion air piping .............................................................................................................. 60
11.5 - Air inlet pipe materials: ..................................................................................................................................... 62
11.5.1 - Sealing of PVC or CPVC air inlet pipe .................................................................................................................... 62
11.6 - PVC/CPVC vent piping materials ..................................................................................................................... 63
11.6.1 - Installing PVC/CPVC vent and air piping ................................................................................................................ 63
11.6.2 - PVC/CPVC air intake connection ........................................................................................................................... 64
11.6.3 - PVC/CPVC vent connection ................................................................................................................................... 64
11.7 - Stainless steel vent piping materials ................................................................................................................ 65
11.7.1 - Stainless steel air intake connection ...................................................................................................................... 65
11.7.2 - Stainless steel vent connection .............................................................................................................................. 66
11.8 - Polypropylene vent piping materials ................................................................................................................. 67
11.8.1 - Polypropylene air intake connection ....................................................................................................................... 68
11.8.2 - Polypropylene vent connection ............................................................................................................................... 68
11.9 - Single pipe vent (not sealed combustion) ........................................................................................................ 69
11.10 - Sidewall termination - Two pipes .................................................................................................................... 70
11.10.1 - Vent/air termination ............................................................................................................................................... 70
11.10.2 - Determine location ................................................................................................................................................ 70
11.10.3 - Prepare wall penetrations ..................................................................................................................................... 72
11.10.4 - Termination and ttings ......................................................................................................................................... 72
11.10.5 - Multiple vent/air terminations ................................................................................................................................ 72
11.11 - Sidewall termination – Concentric vent ........................................................................................................... 73
11.11.1 - Description and usage .......................................................................................................................................... 73
11.11.2 - Sidewall termination installation ............................................................................................................................ 73
11.11.3 - Multiventing sidewall terminations ........................................................................................................................ 74
11.12 - Vertical termination - Two pipes ...................................................................................................................... 75
11.12.1 - Determine location ................................................................................................................................................ 75
11.12.2 - Prepare roof penetrations ..................................................................................................................................... 75
11.12.3 - Termination and ttings ......................................................................................................................................... 75
11.12.4 - Multiple vent/air terminations ................................................................................................................................ 76
11.13 - Vertical termination – Concentric vent ............................................................................................................ 77
11.13.1 - Description and usage .......................................................................................................................................... 77
11.13.2 - Determine location ................................................................................................................................................ 77
11.13.3 - Vertical termination installation ............................................................................................................................. 77
11.13.4 - Multiventing vertical terminations ......................................................................................................................... 78
12 - INSTALLATION - CATEGORY II: Vent and combustion air ..................................................79
12.1 - CAT II: Negative pressure condensing ............................................................................................................. 79
12.2 - CAT II: Adapter and increaser .......................................................................................................................... 79
12.3 - Condensing vent option: CATEGORY II: .......................................................................................................... 80
13 - INSTALLATION - Gas supply.................................................................................................82
13.1 - Gas supply piping ............................................................................................................................................. 82
13.2 - Pipe sizing for natural gas ................................................................................................................................ 83
13.3 - Propane Gas .................................................................................................................................................... 83
13.4 - Check inlet gas supply pressure ...................................................................................................................... 84
13.5 - Operating at high altitudes ............................................................................................................................... 84
13.6 - Convert a appliance model 199 from Natural Gas to Propane gas or viceversa ............................................ 85
13.7 - Convert a appliance model 399, 500, 750 or 1000 from Natural Gas to Propane gas or viceversa ................ 87
14 - START-UP.................................................................................................................................88
14.1 - Operating ......................................................................................................................................................... 88
14.1.1 - User instructions..................................................................................................................................................... 88
14.1.2 - Filling the condensate and neutralizing box ........................................................................................................... 88
14.1.3 - Filling the heating system on a AM-B appliance..................................................................................................... 88
14.2 - General warnings concerning gas supply ........................................................................................................ 88
14.3 - Conrming the appliance’s gas type ................................................................................................................ 89
14.4 - Gas type conversion ........................................................................................................................................ 89
14.5 - Start-up ............................................................................................................................................................ 89
14.5.1 - Start-up of the appliance ........................................................................................................................................ 89
TABLE OF CONTENTS

10
TABLE OF CONTENTS
14.6 - Ignition control testing ...................................................................................................................................... 89
14.7 - Gas supply pressure checking ......................................................................................................................... 90
14.8 - Checking and adjusting CO2 levels ................................................................................................................. 91
14.8.1 - Checking CO2 level on units model 199 ................................................................................................................ 91
14.8.2 - Checking CO2 level on units model 399 up to 1000 .............................................................................................. 91
14.9 - Check the capacity input .................................................................................................................................. 92
14.10 - Minimum water ow ....................................................................................................................................... 92
15 - USE...........................................................................................................................................93
15.1 - Check water pressure ...................................................................................................................................... 94
15.2 - Overview .......................................................................................................................................................... 94
15.3 - Displays ............................................................................................................................................................ 94
15.4 - Start-up procedure ........................................................................................................................................... 94
15.5 - Supply water temperature adjustment ............................................................................................................. 94
15.6 - Delays, alarms and protective actions .......................................................................................................................................................94
15.7 - Circulator pump protection ............................................................................................................................... 94
15.8 - Appliance’s Freeze protection .......................................................................................................................... 94
15.9 - Display in energy saver mode ......................................................................................................................... 94
15.10 - “Users’ menu” ................................................................................................................................................. 95
15.11 - “Installer’s menu” ............................................................................................................................................ 96
15.12 - Diagnostic ...................................................................................................................................................... 97
15.13 - Diagnostic: Lockouts “Loc” ............................................................................................................................. 98
15.14 - Diagnostic: Blocking errors “Err” .................................................................................................................. 100
15.15 - Flue blocked pressure switch ....................................................................................................................... 101
15.16 - Shuts appliance down .................................................................................................................................. 101
15.17 - How to clean the appliance jacket ................................................................................................................ 101
16 - MAINTENANCE......................................................................................................................102
16.1 - Care and maintenance ................................................................................................................................... 102
16.1.1 - Address reported problems .................................................................................................................................. 103
16.1.2 - Check all piping for gas leaks............................................................................................................................... 103
16.1.3 - Verify ue and air lines in good condition and sealed tight; ................................................................................. 103
16.1.4 - Check system water pressure/system piping/expansion tank; ............................................................................. 103
16.1.5 - Check control settings .......................................................................................................................................... 103
16.1.6 - Check ignition and ame sense electrodes .......................................................................................................... 103
16.1.7 - Check wiring and connections.............................................................................................................................. 103
16.1.8 - Perform performance verication. ........................................................................................................................ 103
16.1.9 - Flame inspection .................................................................................................................................................. 104
16.1.10 - Check ame signal ............................................................................................................................................. 104
16.1.11 - Check relief valve ............................................................................................................................................... 104
16.1.12 - Check appliance area......................................................................................................................................... 104
16.1.13 - Check pressure gauge ....................................................................................................................................... 104
16.1.14 - Check vent piping ............................................................................................................................................... 104
16.1.15 - Check air piping.................................................................................................................................................. 104
16.1.16 - Check condensate drain system ........................................................................................................................ 104
16.1.17 - Check appliance piping (gas and water) ............................................................................................................ 104
16.1.18 - Shut appliance down .......................................................................................................................................... 105
16.1.19 - Test low water cuto󰀨 (if installed) ....................................................................................................................... 105
16.1.20 - Reset button (low water cuto󰀨) ........................................................................................................................... 105
16.2 - Removing the casing ...................................................................................................................................... 105
16.3 - Cleaning the burner and primary heat exchanger, ue gas side .................................................................... 106
16.3.1 - Thermal insulations .............................................................................................................................................. 109
16.4 - Correct positioning of the ignition and ame detection electrodes ................................................................ 110
16.5 - Clean the air lter ........................................................................................................................................... 110
16.6 - Condensate trap and neutralizing box maintenance and cleaning .................................................................111
16.7 - Connection of the display to other burners .................................................................................................... 112
16.8 - How to move a control board ......................................................................................................................... 113
16.9 - Draining the water from the appliance ........................................................................................................... 115
16.10 - Water and ue temperature sensor .............................................................................................................. 116