RBI Series 8800, Series 8900 Installation And Operation Manual

CIOM-3

42-9134 Rev. 4

SERIES 8800 & 8900 FINNED COPPER

GAS BOILERS & WATER HEATERS

INSTALLATION & OPERATION MANUAL

MEA#117-96-E

DESIGNED AND TESTED ACCORDING TO A.S.M.E. BOILER AND PRESSURE
VESSEL CODE, SECTION IV FOR A MAXIMUM ALLOWABLE WORKING PRESSURE
OF 160 PSI WATER.

WARNING: If the information in this manual is not followed exactly, a fire
or explosion may result causing property damage, personal injury or loss of life.

Do not store or use gasoline or other flammable 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 fire department.

Installation and service must be performed by a qualified installer, service agency or
the gas supplier.

INSTALLER, THESE INSTRUCTIONS TO BE AFFIXED ADJACENT TO THE HEATER.

CONSUMER, RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE PURPOSES.

260 North Elm Street 1300 Midway Boulevard
Westfield, MA 01085
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]

Mississauga, Ontario L5T 2G8 Canada

䡲

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 2

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 dommoge matériel, toute blessure ou la mort

Ne pas entreposer ni utiliser d’essence ou ni d’autres vapeurs ou liquides inflammables
à proximité de cet appareil ou de tout autre appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d’allumer d’appareil.

• Ne touchez à aucun interrupteur; ne pas vous servir des téléphones se trouvant dans
le bâtiment.

• Appelez immédiatement votre fournisseur de gas depuis un voisin. Suivez les
intructions du fournisseur.

• Si vous ne purvez rejoindre le fournisseur, appelez le service des incendies.

L’installation et l’entretien doivent être assurés par un installateur ou un service
d’entretien qualifié ou par le fournisseur de gaz.

CONTENTS

Before Your Start ................................................ page 2

Ratings & Capacities ..........................................page 3

Location.............................................................. page 3

Combustion Air & Ventilation ..............................page 3

Chimney & Vent Pipe Connections ....................page 4

Common Vent Systems ......................................page 5

Heating System Piping .......................................page 6

Domestic Water Supply Piping .........................page 11

Gas Supply Piping............................................ page 13

Electrical Wiring ...............................................page 14

Operation ......................................................... page 14

Lighting Instructions .........................................page 15

Checking & Adjustment ....................................page 16

Maintenance..................................................... page 17

Repair Parts, 8900 ...........................................page 19

Repair Parts, 8900 ...........................................page 25

BEFORE YOU START

This manual covers the application, installation,
operation and maintenance of a Series 8800
and 8900 finned copper heating boiler/water heater.

To obtain the safe, dependable, efficient operation and
long life for which this heating boiler/water heater was
designed, these instructions must be read, understood
and followed.

The Series 8800 and 8900 finned copper heating boiler/
water heaters have been design certified by A.G.A and
CGA for use with natural and propane gas under the
latest revision of ANSI-Z21.10.3/CSA 4.3, Gas Water
Heaters, ANSI-Z21.13/CSA 4.9, Gas-Fired Low Pressure
Steam and Hot Water Boilers and CGA 3.3, Industrial
and Commercial Gas-Designed Atmospherically-Fired
Vertical Flue Boilers & Hot Water Supply Boilers. Each
unit has been constructed and hydrostatically tested for
a maximum working pressure of 160 psi in accordance
with Section IV of the A.S.M.E. Boiler and Pressure
Vessel Code.

All aspects of the boiler/water heater 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-latest
revision. 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.

In Canada, the installation must be in accordance with
the requirements of CAN/CGA B149.1 or .2, Installation
Code for Gas Burning Appliances and Equipment.

The owner should maintain a record of all service work
performed with the date and a description of the work
done. Include the name of the service organization for
future reference.

Direct all questions to your RBI Water Heaters distributor
or contact the RBI Customer Service Department, 260
North Elm Street, Westfield, MA 01085. Always include
the model and serial numbers from the rating plate of the
boiler/water heater in question.

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 3

RATINGS & CAPACITIES

Before undertaking the installation of the Series 8800
and 8900 boiler/water heater check the rating plate to
ensure that the unit has been sized properly for the job.
The “Net I=B=R Ratings” specify the equivalent amount
of direct cast iron radiation that the unit can supply under
normal conditions. Also ensure that the unit has been
set up for the type of gas available at the installation
site. Other important considerations are the availability
of an adequate electrical supply, fresh air for combustion
and a suitable chimney or vent system.

BOILER/WATER HEATER LOCATION

1. Locate the boiler/water heater in an area that
provides good access to the unit. Servicing may
require the removal of jacket panels. Allow the
minimum clearances between adjacent construction
and the boiler/water heater as listed in Table 1.
Accessibility clearances must take precedence over
fire protection clearances.

Table 1 - Clearance to Combustibles

8800/8900
Top 24" 610 mm
Back 24" 610 mm
Left Side 24" 610 mm
Right Side 24" 610 mm
Front 48" 1220 mm
Flue 6" 152 mm

2. An optimum site will be level, central to the piping

system, close to a chimney and have adequate fresh
air for combustion. Ensure that the boiler/water heater
is level from front to back and from side to side. Use
metal shims to level the boiler/water heater. Electrical
and electronic components must also be protected
from exposure to water during operation and
maintenance.
in a location that would subject any of the gas ignition
components to direct contact with water or excessive
moisture during operation or servicing.

3. Ensure that the floor is structurally sound and will

support the weight of the boiler/water heater. Never
install a Series 8800 or 8900 boiler/water heater on
a concrete floor that contains wires, cables, water
pipes or hoses. This boiler/water heater is designed
for noncombustible floors only! Never install this
boiler/water heater on combustible materials or
carpeting even if a non-combustible foundation
material is placed over them!

WARNING: Never install a Series 8800 or 8900
boiler/water heater on top of combustible
flooring! Failure to comply with this warning may
result in a fire causing extensive property
damage, severe personal injury or death!

DO NOT

install this boiler/water heater

4. Locate the boiler/water heater in an area that will
prevent water damage to adjacent construction
should a leak occur or during routine maintenance.
If such a location doesn’t exist, a suitable drain pan
that’s adequately drained must be installed under
the unit. The
combustion air to the unit.

5.

DO NOT

that would restrict the introduction of combustion air
into the unit or subject it to a negative pressure.

6.

NEVER

that would subject it to temperatures at or near
freezing.

WARNING: Never store combustible materials,
gasoline or any product containing flammable vapors
or liquids in the vicinity of the boiler/water heater.
Failure to comply with this warning can result in an
explosion or fire causing extensive property damage,
severe personal injury or death!

place this boiler/water heater in a location

pan must not restrict the flow of

place this boiler/water heater in a location

COMBUSTION AIR & VENTILATION

WARNING: This boiler/water heater must be
supplied with combustion air in accordance with
Section 5.3, Air for Combustion & Ventilation, of
the latest revision of the National Fuel Gas
Code, ANSI Z223.1 and all applicable local
building codes. Canadian installations must
comply with CAN/ CGA B149.1 or .2 Installation
Code for Gas Burning Appliances and
Equipment, or applicable provisions of the local
building codes. Failure to provide adequate
combustion air for this boiler/water heater can
result in excessive levels of carbon monoxide
which can result in severe personal injury or
death!

To operate properly and safely this boiler/water heater
requires a continuous supply of air for combustion.

NEVER

CAUTION: Combustion air contaminated with
fluorocarbons or other halogenated compounds
such as cleaning solvents and refrigerants will
result in the formation of acids in the combustion
chamber. These acids will cause premature failure
of the boiler/water heater voiding the warranty!

Buildings will require the installation of a fresh air duct
or other means of providing make-up air. Any building
utilizing other gas burning appliances, a fireplace, wood
stove or any type of exhaust fan must be checked for
adequate combustion air when all of these devices are
in operation at one time. Sizing of an outside air duct
must be done to meet the requirements of all such devices.

store objects on or around the boiler!

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 4

WARNING: Never operate the boiler/water heater
in an environment subjected to a negative
pressure. This can result in excessive levels of
carbon monoxide causing severe personal
injury or death!

All Air From Inside The Building

If the boiler/water heater is to be located in a confined
space minimum clearances of 24" (610 mm) must be
maintained between the boiler/water heater and any
combustible construction. When installed in a confined
space two permanent openings communicating with an
additional room(s) are required. The combined volume
of these spaces must have sufficient volume to meet the
criteria for an unconfined space. The total air
requirements of all gas utilization equipment, fireplaces,
wood stoves or any type of exhaust fan must be
considered when making this determination. Each
opening must have a minimum free area of

2

1 in

/1000 Btu/hr (2200 mm2/kW) based on the total
input rating of
confined area.Each opening must be no less than
100 square inches (64516 mm2) in size. The upper
opening must be within 12 inches (300 mm) of,
but not less than 3 inches (80 mm) from, the top of
the enclosure. The bottom opening must be within
12 inches (300 mm) of, but not less than 3 inches
(80 mm) from, the bottom of the enclosure.

All Air From Outside The Building

When installed in a confined space two permanent
openings communicating directly with, or by ducts to,
the outdoors or spaces that freely communicate with the
outdoors must be present. The upper opening must be
within 12 inches (300 mm) of, but not less than 3 inches
(80 mm) from, the top of the enclosure. The bottom
opening must be within 12 inches (300 mm) of, but not
less than 3 inches (80 mm) from, the bottom of the
enclosure.

Where directly communicating with the outdoors or
communicating with the outdoors through vertical ducts,
each opening shall have a minimum free area of 1 in2/
4000 Btu/hr (550 mm2/kW) of the total input rating of
all of the equipment in the enclosure.

Where communicating with the outdoors through
horizontal ducts, each opening shall have a minimum
free area of 1 in2/2000 Btu/hr (1100 mm2/kW) of the
total input rating of all of the equipment in the enclosure.

When ducts are used, they must have the same cross­sectional area as the free area of the opening to which
they connect.

ALL

gas utilization equipment in the

When calculating the free area necessary to meet the
make-up air requirements of the enclosure,
consideration must be given to the blockage effects
of louvers, grills and screens. Screens must have a
minimum mesh size of 1/4" (6.4mm). If the free area
through a louver or grill is not known ducts should be
sized per Table 2 below.

Table 2 - Make-up Air Duct Sizing

Required Cross Sectional Duct Area in2 (cm2)

Input 1/4" (6.4 mm) Metal Wooden

(MBH) Wire Screen Louvers Louvers

420 105 (677) 140 (903) 420 (2710)
530 133 (858) 177 (1142) 530 (3419)
630 158 (1019) 210 (1355) 630 (4064)
735 184 (1187) 245 (1581) 735 (4742)
840 210 (1355) 280 (1806) 840 (5419)
950 238 (1535) 317 (2032) 950 (6129)
1050 263 (1697) 350 (2258) 1050 (6774)
1160 290 (1871) 387 (2497) 1160 (7484)
1260 315 (2032) 420 (2710) 1260 (8129)
1370 343 (2213) 457 (2948) 1370 (8839)
1470 368 (2374) 490 (3161) 1470 (9484)
1580 395 (2548) 527 (3400) 1580 (10,194)
1685 421 (2716) 562 (3626) 1685 (10,871)
1790 448 (2890) 597 (3852) 1790 (11,548)
1900 475 (3065) 633 (4084) 1900 (12,258)
2000 500 (3226) 667 (4303) 2000 (12,903)
2400 600 (3871) 800 (5161) 2400 (15,483)
2800 700 (4516) 933 (6019) 2800 (18,064)
3200 800 (5161) 1067 (6884) 3200 (20,645)
3600 900 (5806) 1200 (7742) 3600 (23,226)
4000 1000 (6452) 1333 (8600) 4000 (25,806)

CHIMNEY & VENT PIPE
CONNECTIONS

WARNING: The vent installation must be in

accordance with Part 7, Venting of Equipment,

of the National Fuel Gas Code, ANSI Z223.1-

latest revision or applicable provisions of the

local building codes. Canadian installations

must comply with CAN/CGA B149.1 or .2

Installation Code. Improper venting can result in

excessive levels of carbon monoxide which can

result in severe personal injury or death!

Chimney Inspection & Sizing

If this boiler/water heater will be connected to a masonry
chimney, a thorough inspection of the chimney must be
performed. Ensure that the chimney is clean, properly
constructed and properly sized. Table 3 lists the
equivalent breeching and flue sizes required for the
boiler/water heater.

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 5

Table 3 - Equivalent Breeching & Chimney Size

Model Size Model Size

Size in (mm) Size in (mm)
420 10 (254) 1580 18 (457)
530 10 (254) 1685 18 (457)

630 12 (305) 1700 20 (508)
735 14 (356) 1900 20 (508)
840 14 (356) 2000 22 (559)
950 14 (356) 2400 24 (610)
1050 16 (406) 2800 26 (660)
1160 16 (406) 3200 28 (711)
1260 16 (406) 3600 30 (762)
1370 18 (457) 4000 30 (762)
1470 18 (457)

Note: These sizes are based on a 20 foot (6.1m) chimney height.

When more than one appliance is connected to the
same chimney flue the flue must be large enough to
safely vent the combined output of all the appliances.

WARNING: If an appliance using any type of a
mechanical draft system operating under
positive pressure is connected to a chimney
flue, never connect any other appliances to this
flue. Doing so can result in the accumulation of
carbon monoxide which can cause severe
personal injury or death!

VENT CONNECTIONS

Always use a type B or single wall galvanized metal vent
pipe the same diameter as the draft diverter flue collar.
Use the shortest, straightest vent system possible for
the installation. If horizontal runs exceed 6 feet (1.8 m)
they must be supported at 6 foot (1.8 m) intervals with
overhead hangers. The vent system should be sloped
up toward the chimney at a minimum rate of 1/4 inch/
foot (2 cm/m) and terminate flush with the inside of the
chimney flue. Fasten each connection with at least 3
corrosion resistant sheet metal screws.

WARNING: Never modify or alter any part of the
boiler’s draft diverter. This includes the removal
or alteration of any baffles. Never install a vent
pipe of a diameter different than that of the
boiler draft hood flue collar. Failure to comply
with this warning can result in severe personal
injury or death.

Always provide a minimum clearance of 6 inches
(152 mm) between type C vent pipe and any
combustible materials. Type B1 vent may be used,
clearance between it and any combustible material must
be as listed.

WARNING: Failure to maintain minimum
clearances between vent connectors and any
combustible material can result in a fire causing
extensive property damage, severe personal
injury or death!

COMMON VENT SYSTEMS

If an existing boiler/water heater is removed from a
common venting system, the common venting system
may then be too large for the proper venting of the
remaining appliances connected to it. At the time of
removal of an existing boiler/water heater, 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.

Au moment du retrait d’une chaudière existante, les
mesures suivantes doivent être prises pour chaque
appareil toujours raccordé au système d’évacuation
commun et qui fonctionne alors que d’autres appareils
toujours raccordés au système d’évacuation ne fonction­nent pas: système d’évacuation

a) Seal any unused openings in the common venting

system.

Sceller toutes les ouvertures non utilisées du sys­tème d’évacuation.

b) Visually inspect the venting system for proper size

and horizontal pitch and determine there is no
blockage or restriction, leakage, corrosion and other
deficiencies which could cause an unsafe condition.

Inspecter de façon visuelle le système d’évacu-ation
pour déterminer la grosser et l’inclinaison
horizontale qui conviennent et s’assurer que le
système est exempt d’obstruction, d’étranglement
de fruite, de corrosion et autres défaillances qui
pourraient présenter des risques.

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 6

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. 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 exhaust, so they will operate at maximum

speed. Do not operate a summer exhaust fan for a

boiler installation. Close fireplace dampers.

Dans la mesure du possible, fermer toutes les

portes et les fenêtres du bâtiment et toutes les

portes entre l’espace où les appareils toujours

raccordés du système d’évacuation sont installés et

les autres espaces du bâtiment. Mettre en marche

les sécheuses, tous les appareils non raccordés au

système d’évacuation commun et tous les

ventilateurs d’extraction comme les hottes de

cuisinère et les ventilateurs des salles de bain.

S’assurer que ces ventilateurs fonctionnent à la

vitesse maximale. Ne pas faire fonctionner les

ventilateurs d’été. Fermer les registres des

cheminées.

d) Place in operation the appliance being inspected.

Follow the lighting instructions. Adjust thermostat so

appliance will operate continuously.

Mettre l’appareil inspecté en marche. Suivre les

instructions d’allumage. Régler le thermostat de

façon que l’appareil fonctionne de façon continue.

e) Test for spillage at the draft hood relief opening after

5 minutes of main burner operation. Use the flame

of a match or candle, or smoke from a cigarette,

cigar or pipe.

Faire fonctionner le brûleur principal pendant 5 min

ensuite, déterminer si le coupe-tirage déborde à

l’ouverture de décharge. Utiliser la flamme d’une

allunette ou d’une chandelle ou la fumée d’une

cigarette, d’un cigare ou d’une pipe.

f) After it has been determined that each appliance

remaining connected to the common venting system

properly vents when tested as outlined above, return

doors, windows, exhaust fans, fireplace dampers

and any other gas-burning appliance to their

previous condition of use.

Une fois qu’il a été d éterminé, selon la métode

indiquée ci-dessus, que chaque appareil raccordé

au système d’évacuation est mis à l’air libre de façor

adéquate. Remettre les portes et les fenêtres, les

ventilateurs, les registres de cheminées et les

appareils au gaz à leur position originale.

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. When resizing any portion of the common
venting system, the common venting system should
be resized to approach the minimum size as
determined using the appropriate tables in Part 11
in the National Fuel Gas Code, ANSI Z223.1

Tout mauvais fonctionnement du systéme
d’évacuation commun devrait étré corrigé de façor
que l’installation soit conforme au National Fue Gas
Code, ANSI Z223.1 et (ou) aux codes d’installation
CAN/CGA-B149. Si la grosseur d’une section du
système d’ évacuation doit étré modifiée, le système
devrait étré modifié pour.

GENERAL PIPING REQUIREMENTS

CAUTION: Improper piping of this boiler/water
heater will void the manufacturer’s warranty and can
cause boiler failure resulting in flooding and
extensive property damage! Excessive water
hardness causing lime build-up in the copper heat
exchanger tubes is
manufacturer’s warranty, see Table 5. Excessive
pitting and erosion of the internal surface of the
copper heat exchanger tubes is
the manufacturer’s warranty if the result of high
water flow rates, see Table 5. Return water
temperatures below 115°F will result in heat
exchanger damage from excessive condensation
voiding the manufacturer’s warranty, see Primary/
Secondary Piping below.

Shut off valves and unions should be installed at the
inlet and outlet connections of the boiler/hot water heater
to provide for isolation of the unit should servicing be
necessary.

Relief Valve

Install the pressure relief valve in the 3/4" NPT opening
on the outlet side of the inlet/outlet header. On units
where the relief valve is larger than 3/4" NPT, install the
relief valve in the supply piping adjacent to the header.
Pipe the discharge of the pressure relief valve to prevent
scalding in the event of a discharge, see Figure 1. The
discharge piping must be sized the same as the
pressure relief valve outlet and installed to allow
complete drainage of both the relief valve and the
discharge piping.

WARNING: Never install any type of valve
between the boiler/water heater and the relief
valve or an explosion causing extensive
property damage, severe personal injury or
death may occur!

NOT

covered under the

NOT

covered under

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 7

Flow Switch

The flow switch supplied with the boiler/water heater
must be wired to the terminal strip in the junction box
to prevent the boiler from firing unless there’s adequate
water flow through the unit. The flow switch must be
installed in the supply piping adjacent to the boiler outlet
connection.

CAUTION: Failure to properly install the flow switch
may result in damage to the boiler/water heater heat
exchanger voiding the warranty!

HEATING SYSTEM PIPING

General Piping Requirements

All heating system piping must be installed by a qualified
technician in accordance with the latest revision of the
ANSI/ASME Boiler and Pressure Vessel Code, Section
IV, and ANSI/ASME CSD-1, Standard for Controls and
Safety Devices for Automatically Fired Boilers. All
applicable local codes and ordinances must also be
followed. A minimum clearance of 1" must be maintained
between heating system pipes and all combustible
construction. All heating system piping must be
supported by suitable hangers not the boiler. The
thermal expansion of the system must be considered
when supporting the system. A minimum system
pressure of 12 psig must be maintained.

Heating Boiler Piping Connections

The supply and return connections should be sized to
suit the system, see Table 4.

Table 4 - Supply & Return Pipe Sizing

Boiler Model Supply Size (in) Return Size (in)
8900 21/2" NPT 21/2" NPT
8800 3" Victaulic 3" Victaulic
*Models 420-950 may have 21/2” x 2” reducing fitting
installed.

Pump Requirements

This low mass boiler requires a continuous minimum
water flow for proper operation. The system pump must
be sized to overcome the head loss of the boiler and
the heating system in order to achieve the required
temperature rise. Table 5 provides the heat exchanger
pressure drop and temperature rise figures. The

temperature rise across the boiler must never
exceed 30°F (17°C). The pump should be wired to run

continuously unless the optional pump delay is installed.
The pump delay turns the pump on each time the
burners fire and runs the pump for 100 seconds after
the call for heat is satisfied.

CAUTION: A temperature rise outside of the range
listed in Table 5 indicates that the flow rate through
the heat exchanger is incorrect which will damage
the heat exchanger voiding the warranty! The
maximum allowable flow rate through an 8900 boiler
is 100 GPM, 200 GPM for an 8800. If higher flow rates
are required the optional Cupro-Nickel heat
exchanger should be considered.

Low Water Cutoff

If a boiler is installed above any radiation elements it
must be fitted with a low water cutoff device.

Expansion Tank

An expansion tank or other means to control thermal
expansion must be installed in the heating system. An
expansion tank must be installed close to the boiler on
the suction side of the pump.

Primary/Secondary Piping

Boilers connected to heating systems using zone valves,
zone pumps, or systems that have excessive flow rates
or return water temperatures less than 110 °F (43°C)
must be isolated from these systems to protect the
boiler.

Variable Water Flows

Figure 1 shows a typical primary/secondary piping
system. A dedicated pump is used to maintain a
constant water flow through the boiler. This secondary
pump is sized to overcome the head loss of the boiler
and secondary piping system while supplying the flow
rate required to maintain the desired temperature rise
across the boiler. The primary pump is sized to provide
the required flow to the heating system. The secondary
piping connections to the primary system piping must
not be more than 12" apart to ensure zero pressure drop
in the primary system, see Figure 1.

Low Return Water Temperatures

To prevent the problems associated with condensation
of the products of combustion due to low return water
temperatures a primary/secondary piping system with
a bypass and bypass valve must be installed, see Figure

2. The bypass and bypass valve must be sized the same
as the secondary piping. A balancing valve must also
be installed in the supply side of the secondary piping
downstream of the bypass. The balancing valve should
be adjusted to divert some of the heated discharge
water into the return water until the required inlet water
temperature is achieved. The primary and secondary
pumps should be sized to provide the required flow
through each system. The secondary piping connections
to the primary system piping must not be more than 12"
apart to ensure zero pressure drop in the primary
system, see Figure 2.

Figure 1
Typical
Primary/Secondary
Piping System

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 8

Figure 2
Low
Temperature
Piping

Figure 3
Multiple
Boiler
Piping

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 9

Table 5 - Temperature Rise Table

Heat Exchanger Head Loss & Temperature Rise

20°F

Model

420
530
630
735
840

950
1050
1160
1260
1370
1470
1580
1685
1790
1900
2000
2400
2800
3200
3600
4000

*Flow exceeds recommended maximum rate, use a greater temperature rise or consult factory for applications in
this range

GPM l/s P Ft KPa

34.0

42.9

51.0

59.5

68.0

77.0

85.1

94.0

102.1*

111.0*

119.1*

128.0*
—
—
—

164.0

196.8

229.6*

262.4*
—
—

2.1

2.7

3.2

3.8

4.3

4.9

5.4

5.9

6.4

7.0

7.5

8.1
—
—
—

10.3

12.4

14.5

16.6
—
—

0.6

1.0

1.6

2.5

3.4

4.5

6.1

7.7

9.5

11.7

14.2

17.1
—
—
—

5.9

9.5

14.2

20.0
—
—

1.8

3.0

4.7

7.4

10.1

13.5

18.2

22.9

28.3

35.0

42.4

51.1
—
—
—

17.5

28.3

42.4

59.9
—
—

GPM l/s P Ft KPa GPM l/s P Ft

—

34.3

40.8

47.6

54.4

61.6

68.1

75.2

81.7

88.8

95.2

102.4*

109.2*

116.0*

123.1*

131.2

157.4

183.6

209.9*

236.1*
—

25°F 30°F

—

2.2

2.6

3.0

3.4

3.9

4.3

4.7

5.2

5.6

6.0

6.5

6.9

7.3

7.9

8.3

9.9

11.6

13.2

14.9
—

—

0.6

1.0

1.6

2.2

2.9

3.9

4.9

6.0

7.5

9.1

10.9

13.0

15.3

16.3

3.7

6.0

9.1

12.8

17.6
—

—

1.9

3.0

4.7

6.5

8.6

11.6

14.6

18.1

22.4

27.1

32.7

38.8

45.6

48.7

11.2

18.1

27.1

38.3

52.5
—

—
—

34.0

39.0

45.3

51.3

56.7

62.7

68.1

74.0

79.4

85.3

91.0

96.6

102.6*

109.3

131.2

153.1

174.9

196.8

218.6*

—
—

2.1

2.5

2.9

3.2

3.6

4.0

4.3

4.7

5.0

5.4

5.7

6.1

6.5

6.9

8.3

9.7

11.0

12.4

13.8

—
—

0.7

1.1

1.5

2.0

2.7

3.4

4.2

5.2

6.3

7.6

9.0

10.6

11.3

2.6

4.2

6.3

8.9

12.2

15.1

KPa

—
—

2.1

2.2

4.5

6.0

8.1

10.2

12.6

15.6

18.9

22.8

30.6

32.4

33.9

7.8

12.6

18.8

26.5

36.5

45.1

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 10

Multiple Boiler Systems

Systems using multiple boilers can also be installed
using a primary/secondary manifold system, Figure 3.

Piping For Use With Cooling Units

The boiler, when used in connection with a refrigeration
system, must be installed so the chilled medium is piped
in parallel with the boiler. Appropriate valves must be
used to prevent the chilled water from entering the
boiler, see Figure 4.

Figure 4 - Chilled Medium Piping

FOR HEATING: VALVES “H” OPEN, VALVES “C” CLOSED.

FOR COOLING: VALVES “H” CLOSED, VALVES “C” OPEN.

EXP. TANK

RELIEF

VALVE

NOTE

VENT

PUMP

ROOM

UNIT

H

C

DRAIN

DOMESTIC WATER SUPPLY PIPING

CAUTION: Proper controls must be used to prevent
water supplied for domestic use from exceeding
130°F (54°C) or a scald injury will occur! When
higher water temperatures are required for
appliances such as a dishwasher, a mixing valve or
some other tempering means must be installed.
Households with small children may require water
temperatures less than 120 °F (49°C). Local codes
must be complied with!

General Piping Requirements

Ensure that the water heater is equipped with bronze
headers. Piping and components connected to the water
heater must be suitable for use with potable water. The
water heater must not be connected to any heating
system piping or components previously used with a
non-potable water heating appliance. Toxic chemicals,
such as those used for boiler treatment, are not to be
introduced into any potable water used for space
heating. If a hot water storage tank is used in the system
it must be equipped with a temperature and pressure
relief valve that complies with ANSI Z21.22 or CAN-4.4
and CAN-4.6.

FILL

VALVE

C

H

DRAIN

BOILER

CHILLER

When a boiler is connected to a heating coil that may
be exposed to refrigerated air from an air handling
device, the piping system must be equipped with flow­control valves or some other automatic means of
preventing gravity circulation of the boiler water during
the cooling cycle.

NOTE: The storage tank must be located as close
to the water heater as possible to prevent excessive
head loss which will reduce flow.

Water Chemistry

The required temperature rise across the water heater
is based on water having a hardness between 8 and
18 grains per gallon with a level of dissolved solids not
exceeding 350 ppm. Water having a hardness less than
8 grains can cause excessive corrosion of the heat
exchanger. Water that has a hardness greater than 18
grains per gallon and/or a level of dissolved solids
exceeding 350 ppm will require a recalculation of the
pump size and temperature rise. A Cupro-Nickel heat
exchanger may also be required. The manufacturer
should be consulted when these water conditions are
encountered.

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 11

Expansion Tank

An expansion tank or other means to control thermal
expansion must be installed in the water heating system
if back flow prevention devices are installed.

Pump Requirements

This low-mass water heater requires a continuous mini­mum water flow for proper operation. The factory
recommended circulating pump has been sized to
overcome the head loss of the water heater plus a 30
foot piping loop under normal water conditions.

Table 5 provides the heat exchanger pressure drop chart
and temperature rise table. The temperature

rise across the water heater must never exceed 30°F
(17 °C).

CAUTION: The pump should be wired to run
continuously unless the optional pump delay is
installed. If the pump delay is used a tank-mounted
aquastat must be wired to the remote operator
terminals in the control box and adjusted so it acts
as the primary operator.

Cold Water Supply

The cold water supply must be piped to the water
heater’s outlet piping between the water heater and the
hot water storage tank. This will prevent untempered
water from entering the water heater, see the
TEMPERATURE RISE CONTROL section below. A
typical water heating system is show in Figure 5.

Temperature Rise Control

Water returned to the water heater inlet must not be less
than 110°F (43°C) or excessive condensation of the
products of combustion will damage the water heater
voiding the warranty. The method outlined below can be
employed to prevent this condition from occurring.

IMPORTANT: A balancing valve should be installed on
the outlet side of the water heater for purposes of
adjusting the flow rate through the heat exchanger.
Thermometers are installed on both the inlet and outlet
of the water heater for determining the temperature rise
through the unit. The proper velocity through the water
heater must be maintained in accordance with Table 5
for efficient operation and long life. If the temperature
rise through the water heater is lower than
recommended the water velocity is too high. Premature
erosion of the heat exchanger will occur. Conversely, if
the temperature rise is higher than recommended in
Table 5 the flow rate is too low. Scaling and softening
of the heat exchanger will occur.

Thermostatic Mixing Valve

Water Above 140°F (60°C) can be stored at temper­atures above 140°F (60 °C) provided that a thermo­statically controlled mixing valve is used to temper the
hot water to an acceptable temperature before it’s
supplied for domestic use. The mixing valve
set to prevent a scald injury from occurring, see the
caution against scalding above. Storage of water for
domestic use above 140°F (60°C) will provide an
increased quantity of tempered water and help prevent
the growth of water born bacteria.

MUST

be

Figure 5
Typical
Water
Heating
Piping

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 12

Figure 6
Multiple
Water
Heating
Piping

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 13

GAS SUPPLY PIPING

WARNING: Check the boiler/water heater rating
plate to make sure that the boiler/water heater
is for the type of gas that will be used. If it isn’t,
do not connect the boiler/water heater to the gas
supply. Failure to comply with this warning can
result in extensive property damage, severe
personal injury or death!

The Series 8800 and 8900 come from the factory ready
to be piped to the gas supply. If for any reason the boiler/
water heater is not for the type of gas available at the
installation site, call the nearest RBI Water Heaters
representative to resolve the problem.

Table 6 should be used to ensure that the gas supply
piping is sized properly. If more than one appliance is
supplied by the same supply pipe, the piping must be
sized based on the maximum possible demand. Do not
neglect the pressure drop due to pipe fittings. Table 6
should be used in conjunction with Table 7 to ensure
that the gas supply piping has the capacity to meet the
demand.

Figure 7 depicts the proper way to connect the boiler/
water heater to the gas supply piping. Provide a
sediment trap at the bottom of the vertical section of the
gas supply pipe upstream of the gas controls.

Table 6 - Gas Pipe Capacity

Maximum pipe capacity in ft3/hr based on 0.60 specific gravity gas
at a pressure of 0.5 psig or less and a 0.3" WC pressure drop.

Nominal
Iron Pipe
Size, (in)

1"
1 1/4"
1 1/2"

2"
2 1/2"

3"

4"

Note: Multiply the gas volume by 0.62 for propane flow capacity in ft3/hr.

Multiply the propane flow capacity by 2500 Btu/ft3 to determine the propane Btu/hr
capacity for a given pipe size and length.

10

520
1050
1600
3050
4800
8500
17,500

20

350
730
1100
2100
3300
5900
12,000

Table 7- Equivalent Pipe Length Chart

Nominal
Iron Pipe
Size, (in)

1"
1 1/4"
1 1/2"

2"
2 1/2"

3"

4"

Notes: 1. For flow through branch.

2. for flow at full open.

90°

Elbow

2.6

3.5

4.0

5.2

6.2

7.7

7.7

Pipe length in feet

30

40

50

60

Maximum gas volume of pipe, (ft3/hr)

285

245

215

195

590

500

440

400

890

760

670

1650

1450

2700

2300

4700

4100

9700

8300

Type of pipe fitting

1

Te e

Equivalent of pipe length (ft)

5.2

6.9

8.0

10.3

12.3

15.3

15.3

1270
2000
3600
7400

Valve

Gate

0.6

0.8

0.9

1.2

1.4

1.8

1.8

610
1150
1850
3250
6800

2

Cock

80

170

350
530
990
1600
2800
5800

Gas

1.5

1.9

2.3

3.0

3.7

4.5

4.5

100

150

150

120

305

250

460

380

870

710

1400

1130

2500

2000

5100

4100

3

A ground joint union should be installed between the
boiler gas controls and the supply piping. Each of these
items are needed to ensure long life and ease of
servicing. Always use a pipe sealant that is suitable for
use with LP gas.

Figure 7 - Gas Supply Piping

TO GAS SUPPLY

GROUND
JOINT
UNION

SEDIMENT TRAP & DRIP LEG
( TO EXTEND TO FLOOR )

MANUAL
SHUTOFF
VALVE

TO GAS
CONTROL(S)

CAUTION: Always use a wrench on the gas valve
body when making gas connections to it. Never
over-tighten the piping entering the gas valve body
or gas valve failure may result!

When applicable, provisions for vent, bleed and gas
relief lines must be made in accordance with the latest
revision of ANSI Z223.1.

Safe lighting and other performance criteria were met
with the gas manifold and control assembly provided on
the boiler. All gas connections

MUST

be leak tested

before putting the boiler into operation.

WARNING: Never use an open flame to test for
gas leaks. Always use an approved leak
detection method. Failure to comply with this
warning can cause extensive property damage,
severe personal injury or death!

Whenever the gas supply piping is pressure tested the
boiler/water heater gas controls must be protected.
If the test pressure is equal to, or less than 1/2 psig (3.5
kPa) isolate the boiler/water heater by closing it’s manual
shut off valve, see Figure 16. If the test pressure is
greater than, or equal to 1/2 psig (3.5 kPa), disconnect
the boiler/water heater and its individual shut-off valve.

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 14

ELECTRICAL WIRING

Electrical Power Connections

CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation! Verify proper
operation after servicing!

ATTENTION. Au moment de l’entretien des
commandes, étiquetez tous les fils 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.

The electrical connections to this boiler/water heater
must be made in accordance with all applicable local
codes and the latest revision of the National Electrical
Code, ANSI /NFPA-70. Installation should also conform
with CSA C22.1 Canadian Electrical Code Part I if
installed in Canada. Install a separate 120 volt 15 amp
circuit for the boiler/water heater. A shut-off switch
should be located at the boiler/water heater. The boiler/
water heater must be grounded in accordance with the
authority having jurisdiction, or if none, the latest revision
of the National Electrical Code, ANSI/NFPA-70.

Line voltage field wiring of any controls or other devices
must conform to the temperature limitation of type T wire
at 95°F(35°C) above room temperature. Use copper
conductors with a minimum size of #14 awg.

Refer to the wiring diagram supplied with the boiler/
water heater for proper wiring connections.

Hydronic Heating Boilers

Open the make-up water valve and slowly fill the boiler
and all of the radiation with water. Ensure that all bleed
and drain valves are closed.

Adjust the make-up water pressure regulator so a
minimum 12 psig system pressure is maintained at the
highest point in the system piping. If a make-up water
pump is used adjust it as stated above.

Open the system bleed and drain valves, one at a time,
to purge the air trapped in the heating system piping.

With the boiler off, run the system pump for at least 30
minutes and bleed the system piping using the bleed
valves. If strainers are used in the system piping the
make-up water valve should be closed and the strainers
checked and cleaned.

The system expansion tank should be checked to
ensure that the correct water level in the tank is
maintained. The tank should less than half full
of water with the system full and adjusted to the correct
operating pressure.

Start the boiler as described in the LIGHTING
INSTRUCTIONS below. Run the boiler for at least an
hour. The system pump(s) and all radiation unit must be
operated during this time. Ensure that the make-up
water valve is open.

Shut the boiler off and open the bleed valves to purge
the air trapped in the heating system piping. Close the
make-up water valve and check and clean the strainers
and make-up water pressure reducing valve.

BOILER/WATER HEATER
OPERATION

WARNING: Before proceeding read and fully
understand the instructions contained in this
manual. Do not attempt to operate this boiler/
water heater if it has not been installed in
accordance with the guidelines set forth in this
manual. Failure to comply with this warning can
result in extensive property damage, severe
personal injury or death!

Should overheating occur or the gas supply fail to shut
off, turn off the manual gas control valve to the
appliance. Do Not interrupt water flow through the boiler/
water heater.

En cas de surchauffe ou si l’alimentation en gaz ne
s’arrête pas, fermez manuellement le robinet d’arrêt de
l’admission de gaz.

Open the make-up water valve and adjust the system
pressure if necessary.

The system should be checked and bled after three day
of operation.

LIGHTING INSTRUCTIONS

FOR YOUR SAFETY READ BEFORE OPERATING

POUR VOTRE SÉCURITÉ LISEZ AVANT DE
METTRE EN MARCHE

A. This appliance is equipped with an ignition device

which automatically lights the pilot. Do
the pilot by hand.

Cet appareil est muni d’un dispositif d’allumage qui
allume automatiquement la veilleuse. Ne tentez pas
d’allumer la veilleuse manuellement.

not

try to light

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 15

B. BEFORE OPERATING smell all around the

appliance area for gas. Be sure to smell next to the
floor because some gas is heavier than air and will
settle on the floor.

What To Do If You Smell Gas

• Do not try to light any appliance.

• Do not tough any electric switch; do not use any

phone in your building.

• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas suppliers instructions.

• If you cannot reach your gas supplier, call the fire
department.

AVANT DE FAIRE FONCTIONNER, reniflez tout autour
de l’appareil pour déceler une odeur de gaz. Reniflez
près du plancher, car certains gaz sont plus lourds que
l’air et peuvent s’accumuler au niveau du sol.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d’allumer d’appareil.

• Ne touchez à aucun interrupteur; ne pas vous servir
des téléphones se trouvant dans le bâtiment.

• Appelez immédiatement votre fournisseur de gaz

depuis un voisin. Suives les instructions du
fournisseur.

• Si vous ne pouvez rejoindre le fournisseur, appelez
le service de incendies.

C) Do not use this appliance if any part has been under

water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of
the control system and any gas control that has
been under water.

6. Wait five (5) minutes to clear out any gas. Then
small for gas, including near the floor. If you smell
gas,

STOP!

above. If you don’t smell gas go to next step.

7. Connect a manometer having a minimum capacity
of 20" WC to the outlet pressure port of the gas
valve. Make sure that the gas supply piping has
been purged of air and that all gas joints up to the
gas valve have been thoroughly checked for leaks.

8. Open the manual pilot valve.

9. Turn on all electric power to the boiler.

10. Set the operating control or thermostat to the
desired setting.

11. The pilot(s) should automatically light. Do not try to
light the pilot(s) by hand!

12. With the pilot(s) lit, open the main gas shut-off valve.

13. The burners should light with proper boiler
operation.

14. A boiler designed for use with natural gas should
have a manifold gas pressure of approximately 4.0"
WC. For an LP boiler, the manifold pressure should
be 11" WC. To adjust the manifold gas pressure see
the

GAS PRESSURE ADJUSTMENT

the

CHECKING AND ADJUSTMENT

15. With the burners in operation, close the manual
shutoff valve in the gas supply line. As soon as the
main burner flames go out, open the manual shutoff
valve. A normal ignition sequence should take place.
If the burners fail to light the system will make one
more ignition attempt. If the burners have not lit after
the last ignition try, the gas valve will close and the
system will go into lock out. DO
reset the system until the ignition system has been
inspected and the problem resolved.

Follow “B” in the safety infomration

instructions in

section.

NOT

attempt to

N’utilisez pas cet appareil s’il a été plongé dans
l’eau, même partiellement. Faites inspecter
l’appareil par un tecnicien qualifié et remplacez
toute partie du système de contrôle et toute
commande qui ont été plongés dans l’eau.

CAUTION: To prevent being burned, stand clear of
the boiler during ignition and don’t touch any hot
metal parts!

Operating Instructions

1.

STOP!

time, the appliance will not operate properly, follow
the instructions “TO TURN OFF GAS TO
APPLIANCE” and call your service technician or gas
supplier.

2. Set the operating control or thermostat to off or its
lowest setting.

3. Turn off all electric power to the appliance.

4. This appliance is equipped with an ignition device
which automatically lights the pilot. Do
the pilot by hand.

5. Close the manual main and pilot gas shut-off valves.

Read the safety information above. If, at any

not

try to light

With the burners in operation, interrupt the power
to the control circuit by lowering the operating
control or thermostat. The main burners should go
out. Reset the operating control or thermostat, a
normal ignition sequence should follow.

To test the ignition safety shutoff device, close the
manual shutoff valve in the gas supply line. Within
5 seconds of main burner flame extinction, the main
gas valve solenoid should close with an audible
noise.

A sparking noise should be heard while the ignition
module tries to relight the pilot. After 15 seconds the
module should lockout and the trial for ignition end.
After 5 minutes a second trial for ignition should
occur. Open the manual shutoff valve in the gas
supply line and reset the ignition control system. A
normal ignition sequence should take place.

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 16

Instructions De Mise En Marche

1. ARRÊTEZ! Lisez les instructions de sécurité sur la
portion supérieure de cette étiquette.

2. Réglez le thermostat à la température la plus basse.

3. Coupez l’alimentation électrique de l’appareil.

4. Cet appareil est muni d’un dispositif d’allumage qui
allume automatiquement la veilleuse. Ne tentez pas
d’allumer la veilleuse manuellement.

5.

Fermer la vanne manuelle d’arrêt d’alimintation de gaz.

6. Attendre cinq (5) minutes pour laisser échapper tout
le gaz. Reniflez tout autour de l’appareil, y compris
près du plancher, pour déceler une odeur de gaz.
Si vous sentez une odeur de gaz, ARRÊTEZ!
Passez à l’étape B des instructions de sécurité sur
la portion supérieure de cette étiquette. S’il n’y a pas
d’odeur de gaz, passez à l’étape suivante.

7.

Ouver la vanne manuelle d’arrêt d’alimintation de gaz.

8. Mettez l’appareil sous tension.

9. Réglez le thermostat à la température désirée.

10. Si l’appareil ne se met pas en marche, suivez les
instructions intitulées «Comment couper l’admission
de gaz de l’appareil» et appelez un technicien
qualifié ou le fournisseur de gaz.

To Turn Off Gas To Appliance

1. Set the operating control or thermostat to its lowest
setting.

2. Turn off all electric power to the appliance if service
is to be performed.

3. Close the manual main and pilot gas shut-off valves.

COMMENT COUPER L’ADMISSION DE GAZ DE
L’APAREIL

1. Réglez le thermostat à la température la plus basse.

2. Coupez l’alimentation électrique de l’appareil s’il faut
procéder à l’entretien.

3.

Fermer la vanne manuelle d’arrêt d’alimintation de gaz.

CHECKING & ADJUSTMENT

Pilot Adjustment

The pilot burner flame should envelope 3/8" to 1/2" of
the flame sensing probe, Figure 8. To adjust the pilot
the following steps must be taken:

1. Remove the pilot gas pressure regulator cap.

2. Turn the pressure regulator adjustment screw clock­wise to increase the flame and counterclockwise to
decrease it.

3. Replace the pressure regulator adjustment screw
cap.

Figure 8 - Pilot Flame Adjustment

Gas Pressure Adjustment

CAUTION: The maximum inlet gas pressure listed on
the rating plate must not be exceeded or damage
to the boiler/water heater may occur!

The minimum supply pressure listed on the rating plate
is for input adjustment.

NATURAL GAS: Optimum results are obtained when the
boiler/water heater is operated at its full input rating, with

3.8" WC to 4.2" WC of manifold pressure. The manifold
pressure should not vary outside this range. The gas
valve pressure regulator has been preset at the factory.
If adjustment is necessary the following steps must be
followed:

1. Attach a 20" manometer to the tap on the manifold.

2. Remove the regulator adjustment screw cap from
the gas regulator. On systems that do not use a
separate gas regulator, remove the adjustment
screw cap from the gas valve body on the valve
closest to the gas supply piping.

3. Rotate the regulator adjustment screw clockwise to
increase the manifold pressure, counterclockwise to
decrease it.

4. Replace the regulator adjustment screw cap and
manifold pressure tap plug.

CAUTION: Never force the regulator adjustment
screw beyond the stop limits or damage to the
regulator will occur!

PROPANE GAS: A manifold pressure of 11" WC must
be maintained for proper operation of the boiler. If the
manifold pressure is off by more than 5% adjust it
according to steps 1 through 4 above.

Input Rate, Natural Gas

Gas appliances are rated based on sea level operation
with no adjustment required at elevations up to 2000
feet. At elevations above 2000 feet, input ratings should
be reduced by 4% for each 1000 feet above sea level.

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 17

Check the input rate as follows:

1. Turn off all other gas appliances that use the same
gas meter as the boiler/water heater.

2. Call your gas supplier and ask for the heating value
of the gas.

3. Start the boiler/water heater and let it run for 15
minutes.

4. Using the gas meter and a stopwatch, clock the time
that it takes to burn 10 cubic foot of gas and divide
this time by 10.

5. Insert the heating value and the time, in seconds,
into the formula below.

6. Input = (heating value, Btu/hr)(3600)/(time, seconds)

7. If the computed rate deviates by more than 5% from
the rated input value of the unit adjust the manifold
pressure accordingly.
pressure by more than 5%. If a proper rate cannot
be maintained without adjusting the manifold
pressure beyond the 5% limit, the main burner
orifices must be replaced. If the input rate is too low,
go to the next lager size of main burner orifices. If
the input rate is too high, go to the next smaller size.

CAUTION: Never increase the input to the boiler/
water heater above that for which it is rated. Doing
so can cause premature failure of the unit!

Low Water Cutoff

If installed, ensure that the low water cutoff device(s)
function properly. Test in accordance with the
manufacturer’s instructions included with the device(s).

Boiler Thermostat

If a thermostat is to be used to control the boiler always
follow the instructions included with the thermostat.
Proper location of the thermostat will ensure efficient
trouble-free operation of the boiler. Mount the thermostat
to an inside wall at a height approximately five feet
above the floor.

Avoid placing the thermostat in areas that will not
provide an accurate measurement of the room
temperature. Locating the thermostat behind a door, in
an alcove, close to a source of thermal radiation or in a
drafty area will cause poor or sporadic heating.

For a thermostat that employs an adjustable heat
anticipator, adjust the anticipator to match the current
measured in the thermostat circuit. An increased
anticipator setting may be necessary if the unit cycles
frequently. If the room temperature over-shoots the
thermostat setting, reduce the anticipator setting.

DO NOT

adjust the manifold

Water Heater Operation Controls

The operating control on the water heater is set to its
lowest setting when the water heater leaves the factory.
The preferred control setting for potable hot water is
130°F. The operating control should be set to the lowest
setting that will satisfy the consumer’s needs. The water
heater high limit should be set a minimum of 40°F
(22°C) higher than the operating control. Refer to the
HOT WATER SUPPLY section for the proper supply
water temperature.

WARNING: Setting the thermostat or operating
control too high can result in scalding resulting
in severe personal injury!

BOILER/WATER HEATER
MAINTENANCE

WARNING: Disconnect electrical power and
close the manual gas shut off valve before
performing maintenance or severe personal
injury may result!

CAUTION: Servicing, inspection and adjustment
must be done by a trained technician in accordance
with all applicable local and national codes.
Improper servicing or adjustment can damage the
boiler /water heater!

The boiler/water heater should be cleaned and
inspected once a year, before each heating season.
Make sure that the burners and ignition components are
free from dust, soot, dirt, corrosion or other deposits that
would impair the boiler’s performance. Refer to pages
19 & 27 for component identification.

Combustion Chamber Inspection

1. Remove the left or right lower jacket end panel, item
5 or 24 (8900) or item 5 or 26 (8800).

2. Remove the upper end refractory brackets and
carefully remove the end refractory panel.

3. Inspect the combustion chamber, heat exchanger
and burner tray components for sign of corrosion
and/or deterioration.

4. Clean or replace components are required.

Burner Drawer & Burner Removal

1. Close the manual shutoff valves in the gas supply
lines and turn off electrical power to the boiler/water
heater.

2. Disconnect the gas train from the gas supply piping
at the ground joint union, Figure 9.

3. Remove the Flame Roll-Out Shield, 8900 only.

4. Remove the two bolts that attach the burner drawer
to the base frame.

5. Disconnect the pilot tubing from the solenoid valve
and the ignition lead from the ignition control.

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 18

6. Pull the burner drawer out until the burners are fully
exposed.

7. Inspect each burner for damage or signs of
deterioration. Use a brush or compressed air to
remove any debris from the burner ports.

8.

DO NOT

install damaged or badly corroded burners,

replace them.

9. Install the burners making sure that they are
properly seated in the burner drawer.

10. Replace the Burner Drawer and Flame Roll Out
Shield, 8900 only, following the removal steps in
reverse order.

Heat Exchanger Inspection & Cleaning

1. Close the shut off valves in the inlet and outlet
piping. Relieve the system pressure from the boiler
by carefully lifting the relief valve or opening the
drain valve.

2. Disconnect the boiler/water heater from the system
piping.

3. Remove the left and right headers and mounting
studs.

4. Remove the left & right upper and left & right lower
jacket end panels, items 5 & 24 (8900) or items 5
& 26 (8800).

5. Remove the left & right front corner trim panels,

8900.

6. Remove the flue collector front panel shown as part
of item 19 (8900) or item 21 (8800).

7. Remove the upper front refractory channel
assembly and front refractory panels.

8. Slide the heat exchanger out and thoroughly
inspect it.

9. The outside surfaces of the copper tubes should be
free of any soot deposits, A slight black smudge is
normal with some types of gases. Black soot
indicates poor combustion. Green deposits indicate
condensation due to low return water temperatures.
In either case the heat exchanger must be cleaned
thoroughly with water and the problem resolved
before the boiler/water heater is returned to service.

10. Replace the cleaned heat exchanger and other
components in the reverse order of their removal.

Controls

Use the BOILER/WATER HEATER OPERATION and
CHECKING AND ADJUSTMENT sections of this
manual for reference.

1. Check the thermostat or operating controls for
proper operation.

2. A float type low water cutoff device must be flushed
out per the manufacturers’ instructions. The probe
on a probe low water cut off must be removed,
cleaned and inspected at least once a year. Ensure
that the low water cutoffs operate properly. In not,
replace them.

3. The relief valve should not weep or discharge water
at normal system pressure. If it does contact a
qualified service technician to have it inspected.

NEVER

try to clean or repair the relief valve! If the

valve fails to operate properly, have it replaced!

4. The aquastat high limit controls the maximum water
temperature in the boiler. It is adjustable from 140°F
(60C) to 250°F (121°C). If the water temperature
reaches the set temperature before the demand for
heat has been met, the aquastat high limit should
shut the boiler off. The water temperature should
never exceed the maximum set point of 250°F
(121°C). The aquastat high limit cannot be repaired.
If it fails to function properly replace it.

5. Visually check the pilot and main burner flames to
ensure proper operation, see Figures 8 & 9.

WARNING: Yellow, floating flames indicate a lack
of combustion air. Do not operate the boiler until
the problem is solved or severe personal injury
or death may occur!

Figure 9 - Main Burner Flames

NORMAL

(HARD FLAME)

LIFTING

(TOO MUCH AIR)

Heat Exchanger Replacement

1. Sagging or distorted heat exchanger tubes are an
indication of low water flow through the system.

2. A damaged heat exchanger must be replaced and
the condition that caused the damage resolved
before the boiler/water heater is returned to service.

Vent System

Thoroughly inspect the vent system for any signs of
blockage, corrosion or leakage. Immediately replace any
unsound vent system piping.

YELLOW TIPPING

(MARGINAL)

YELLOW FLAME

(TOO LITTLE AIR)

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 19

PARTS LIST (MODELS 420-1900)

Series 89

1 - Jacket Lower

Front Panel

2 - Jacket Lower

Rear Panel

3 - Jacket Lower

Rear Corner Post

4 - Jacket Lower

Front Corner Post

5 - Jacket Lower

End Panel

6 - Inlet Outlet

Header
7 - Return Header
8 - Black O-Rings
9 - Stud Bolts

10 - Flange Nuts
11 - V Baffle
12 - Frame Assembly
13 - Main Burner
14 - Union
15 - Firing Valve
16 - Main Gas Valve
17 - A Valve
18 - Refractory
19 - Flue Collector

End

20 - Down Draft

Preventer

21 - Flue Collector

To p

22 - Jacket Upper

Front Panel

23 - Jacket Panel

Anchor Bracket

24 - Jacket Upper End

Panel

25 - Jacket Upper

Front Corner Post

26 - Jacket Upper

Rear Corner Post

27 - Jacket Top Panel
28 - Jacket Upper

Rear Panel

29 - Burner Tray Side
30 - Copper Fin Tube

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 20

SERVICE AND REPLACEMENT PARTS LIST (MODELS 420-1900)

Ref # Name of Part

1 Lower Front Jacket Panel 72-0001 1

2 Lower Rear Jacket Panel 72-0001 1

3 Lower Lt Rear Jacket Corner Posts 72-0017 111111111111111

Lower Rt Rear Jacket Corner Posts 72-0017 111111111111111

4 Lower Lt Front Jacket Corner Posts 72-0017 111111111111111

Lower Rt Front Jacket Corner Posts 72-0017 111111111111111
5 Lower Left & Right Jacket End Pnl. 72-0016 222222222222222
6 Inlet/Outlet Header, Cast Iron 01-0001 111111111111111

Inlet/Outlet Header, Bronze 01-0003 111111111111111
7 Return Header, Cast Iron 01-0002 111111111111111

Return Header, Bronze 01-0004 111111111111111
8 O Ring, Headers 06-0001 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16
9 Stud, Headers 57-0223 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12

10 Nut, Headers 57-0491 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12
11 Heat Exchanger “V” Baffle 03-0244 7

Part # 420 530 630 735 840 950 1050 1160 1260 1370 1470 1580 1685 1790 1900

72-0002 1
72-0003 1
72-0004 1
72-0005 1
72-0006 1
72-0007 1
72-0008 1
72-0009 1
72-0010 1
72-0011 1
72-0012 1
72-0013 1
72-0014 1
72-0015 1

72-0002 1
72-0003 1
72-0004 1
72-0005 1
72-0006 1
72-0007 1
72-0008 1
72-0009 1
72-0010 1
72-0011 1
72-0012 1
72-0013 1
72-0014 1
72-0015 1

03-0245 7
03-0246 7
03-0247 7
03-0248 7
03-0249 7
03-0250 7
03-0251 7
03-0252 7
03-0253 7
03-0254 7
03-0255 7
03-0256 7
03-0257 7
03-0258 7

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 21

Ref # Name of Part

Not Shown

Heat Exchanger Edge Baffle 03-0259 2

12 Base Frame Assembly 70-0192 1

13 Burner Tube, Aluminized Steel Nat 10-0252 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35

Burner Tube, Aluminized Steel LP 10-0253 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35

Burner Tube, Aluminized w/ Bracket 70-0499 1 11111111111111

Burner Tube, Stainless Steel 10-0254 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35

Burner Tube, Stainless w/ Bracket 70-0500 1 11111111111111

14 Union, 1" 53-0054 1 11111

Union, 1 1/4" 53-0055 1111111

Union, 1 1/2" 53-0056 1 1

15 Firing Valve, 1" 11-0456 1 11111

Firing Valve, 1 1/4" 11-0457 1111111

Firing Valve, 1 1/2" 11-0458 1 1

16 Main Gas Valve, HW V88A, 1" 11-0156 1 11111

Main Gas Valve, HW V88A, 1 1/4" 11-0157 1111111

Main Gas Valve, HW V88A, 1 1/2" 11-0158 1 1

Main Gas Valve, V8944B, 1" 11-0171 1 11111

Main Gas Valve, V8944B, 1 1/4" 11-0172 1111111

Main Gas Valve, V8944B, 1 1/2" 11-0173 1 1

17 “A” Valve, 1" 11-0451 1 11111

“A” Valve, 1 1/4" 11-0452 1111111

“A” Valve, 1 1/2" 11-0453 1 1

18 End Refractory Panel, Left & Right 05-0001 2 22222222222222
18 Center Refractory Panel 05-0002 2

Part # 420 530 630 735 840 950 1050 1160 1260 1370 1470 1580 1685 1790 1900

03-0260 2
03-0261 2
03-0262 2
03-0263 2
03-0264 2
03-0265 2
03-0266 2
03-0267 2
03-0268 2
03-0269 2
03-0270 2
03-0271 2
03-0272 2
03-0273 2

70-0193 1
70-0194 1
70-0195 1
70-0196 1
70-0197 1
70-0198 1
70-0199 1
70-0200 1
70-0201 1
70-0202 1
70-0203 1
70-0204 1
70-0205 1
70-0206 1

05-0003 2
05-0004 0002222444666

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 22

Ref # Name of Part

Not Shown

Heat Shield 70-0482 1

— Burner Spacers 70-0363 1

— Upper Front Refractory Channel 70-0177 1

— Upper Rear Refractory Channel 70-0162 1

Part # 420 530 630 735 840 950 1050 1160 1260 1370 1470 1580 1685 1790 1900

70-0483 1
70-0484 1
70-0485 1
70-0486 1
70-0487 1
70-0488 1
70-0489 1
70-0490 1
70-0491 1
70-0492 1
70-0493 1
70-0494 1
70-0495 1
70-0496 1

70-0364 1
70-0365 1
70-0366 1
70-0367 1
70-0368 1
70-0369 1
70-0370 1
70-0371 1
70-0372 1
70-0373 1
70-0374 1
70-0375 1
70-0376 1
70-0377 1

70-0178 1
70-0179 1
70-0180 1
70-0181 1
70-0182 1
70-0183 1
70-0184 1
70-0185 1
70-0186 1
70-0187 1
70-0188 1
70-0189 1
70-0190 1
70-0191 1

70-0163 1
70-0164 1
70-0165 1
70-0166 1
70-0167 1
70-0168 1
70-0169 1
70-0170 1
70-0171 1
70-0172 1
70-0173 1
70-0174 1
70-0175 1
70-0176 1

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 23

Ref # Name of Part

18 Corner Refractory Panel 05-0005 4

19 Draft Diverter, Left Side Panel 03-0191 1 11111111111111

Draft Diverter, Right Side Panel 03-0192 1 11111111111111

20 Draft Diverter Down Draft Baffle 03-0193 1 1

21 Draft Diverter Top Panel Assembly 70-0030 1

22 Upper Front Jacket Panel 72-0001 1

23 No Longer Used
24 Upper Left & Right Jacket End Pnl. 72-0016 2 22222222222222
25 Upper Left Front Jacket Corner Post 72-0017 1 11111111111111

Upper Rt Front Jacket Corner Post 72-0017 1 11111111111111

26 Upper Left Rear Jacket Corner Post 72-0017 1 11111111111111

Upper Right Rear Jacket Corner Post 72-0017 1 11111111111111

Part # 420 530 630 735 840 950 1050 1160 1260 1370 1470 1580 1685 1790 1900

05-0006 4
05-0007 4
05-0008 4
05-0009 4
05-0010 4
05-0011 4
05-0012 4
05-0013 4
05-0014 4
05-0015 4
05-0016 4
05-0017 4

03-0194 1
03-0195 1 1 1
03-0196 1 1 1
03-0197 1111
03-0198 1 1

70-0031 1
70-0032 1
70-0033 1
70-0034 1
70-0035 1
70-0036 1
70-0037 1
70-0038 1
70-0039 1
70-0040 1
70-0041 1
70-0042 1
70-0043 1
70-0044 1

72-0002 1
72-0003 1
72-0004 1
72-0005 1
72-0006 1
72-0007 1
72-0008 1
72-0009 1
72-0010 1
72-0011 1
72-0012 1
72-0013 1
72-0014 1
72-0015 1

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 24

Ref # Name of Part

27 Top Jacket Panel 72-0001 1

28 Upper Rear Jacket Panel 72-0001 1

29 Burner Drawer Side Rail Assy, Left 70-0361 1 11111111111111

Burner Drawer Side Rail Assy, Right 70-0362 1 11111111111111

30 Heat Exchanger, SB75 Tubes 70-0132 1

Standard ASME (no headers) 70-0133 1

Part # 420 530 630 735 840 950 1050 1160 1260 1370 1470 1580 1685 1790 1900

72-0002 1
72-0003 1
72-0004 1
72-0005 1
72-0006 1
72-0007 1
72-0008 1
72-0009 1
72-0010 1
72-0011 1
72-0012 1
72-0013 1
72-0014 1
72-0015 1

72-0002 1
72-0003 1
72-0004 1
72-0005 1
72-0006 1
72-0007 1
72-0008 1
72-0009 1
72-0010 1
72-0011 1
72-0012 1
72-0013 1
72-0014 1
72-0015 1

70-0134 1
70-0135 1
70-0136 1
70-0137 1
70-0138 1
70-0139 1
70-0140 1
70-0141 1
70-0142 1
70-0143 1
70-0144 1
70-0145 1
70-0146 1

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 25

Ref # Name of Part

30 Heat Exchanger, SB111 Tubes 70-0147 1

Optional Cupro-Nickel ASME (no headers) 70-0148 1

Not Shown

Not Shown

Not Shown
Not Shown
Not Shown
Not Shown
Not Shown
Not Shown

Not Shown

Not Shown

Not Shown

Not Shown
Not Shown
Not Shown
Not Shown

Pilot, Natural Gas 10-0104 1 11111111111111

Pilot, LP Gas 70-0477 1 11111111111111

Pilot Orifice, Natural Gas 10-0003 1 11111111111111

Pilot Orifice, LP Gas 10-0002 1 11111111111111

Pilot Valve, 24 V 11-0017 1 11111111111111

Pilot Regulator, RV12LT 11-0041 1 11111111111111

Manual Pilot Valve 11-0031 1 11111111111111

Ignition Module, S8610M 16-0054 1 11111111111111

Transformer, 40 VA 15-0002 1 11111111111111

High Limit, L4008E (US only) 14-0104 1 11111111111111

High Limit, GIP 9869 (CAN only) 14-0117 1 11111111111111

High Limit, L4008E (Boiler) 14-0104 1 11111111111111

High Limit, L4008E-1313 (Water Heaters) 14-0105 1 11111111111111

Operator, L4008A (US only) 14-0102 1 11111111111111

Operator, GIP 9868 (CAN only) 14-0116 1 11111111111111

Operator, L6008A-1242 (Water Heaters) 14-0106 1 11111111111111

Operator, L6008G-1009B (2 Stage) 14-0107 1 11111111111111

Operator, T991E-1018 (Mod) Boilers 14-0108 1 11111111111111

Operator, T991E-1034 (Mod) Water Heaters

Operator, L4008A-1445 Water Heaters 14-0103 1 11111111111111

Orifice, Blank 10-0011 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

Orifice, Natural Gas, # 29 10-0016 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

Orifice, Nat Gas, # 31 (2000-4500 ft) 10-0018 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

Orifice, LP Gas, # 44 10-0031 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

Orifice, LP Gas, # 46 (2000-4500 ft) 10-0033 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

50# Pressure relief Valve (Boilers) 13-0040 1 1 1

125# Pressure Relief Valves (Water Heaters)

Pressure Gauge (Boilers) 13-0301 1 11111111111111

Thermostat w/ Well 13-0320 1 11111111111111

Flow Switch (Water Heaters) 14-0201 1 11111111111111

Part # 420 530 630 735 840 950 1050 1160 1260 1370 1470 1580 1685 1790 1900

70-0149 1
70-0150 1
70-0151 1
70-0152 1
70-0153 1
70-0154 1
70-0155 1
70-0156 1
70-0157 1
70-0158 1
70-0159 1
70-0160 1
70-0161 1

14-0110 1 11111111111111

13-0001 1111111
13-0002 11111
13-0009 1 11111111111111

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 26

Ref # Name of Part

Not Shown

Not Shown

Not Shown

Not Shown

Natural to LP Conversion Kit 21-0131 1

LP to Natural Conversion Kit 21-0146 1

Natural to LP Conversion Kit 21-0161 1

(2000 to 4500 feet) 21-0162 1

LP to Natural Conversion Kit 21-0176 1

(2000 to 4500 feet) 21-0177 1

Part # 420 530 630 735 840 950 1050 1160 1260 1370 1470 1580 1685 1790 1900

21-0132 1
21-0133 1
21-0134 1
21-0135 1
21-0136 1
21-0137 1
21-0138 1
21-0139 1
21-0140 1
21-0141 1
21-0142 1
21-0143 1
21-0144 1
21-0145 1

21-0147 1
21-0148 1
21-0149 1
21-0150 1
21-0151 1
21-0152 1
21-0153 1
21-0154 1
21-0155 1
21-0156 1
21-0157 1
21-0158 1
21-0159 1
21-0160 1

21-0163 1
21-0164 1
21-0165 1
21-0166 1
21-0167 1
21-0168 1
21-0169 1
21-0170 1
21-0171 1
21-0172 1
21-0173 1
21-0174 1
21-0175 1

21-0178 1
21-0179 1
21-0180 1
21-0181 1
21-0182 1
21-0183 1
21-0184 1
21-0185 1
21-0186 1
21-0187 1
21-0188 1
21-0189 1
21-0190 1

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 27

PARTS LIST (MODELS 2000-4000)

Series 89

1 - Jacket Lower

Front Panel

2 - Jacket Lower

Rear Panel

3 - Jacket Lower

Rear Corner Post

4 - Jacket Lower

Front Corner Post

5 - Jacket Lower

End Panel

6 - Inlet Outlet

Header
7 - Return Header
8 - Copper Fin Tube
9 - Black O-Rings

10 - Stud Bolts
11 - Flange Nuts
12 - V Baffle
13 - Frame Assembly
14 - Main Burner
15 - Union
16 - Firing Valve
17 - Main Gas Valve
18 - A Valve
19 - Burner Drawer

Side

20 - Refractory
21 - Flue Collector

End Panel

22 - Down Draft

Preventer

23 - Flue Collector

To p

24 - Jacket Upper

Front Panel

25 - Jacket Upper

Rear Panel

26 - Jacket Upper End

Panel

27 - Jacket Upper

Rear Corner Post

28 - Jacket Upper

Front Corner Post

29 - Jacket Top Panel
30 - Jacket Top End

Panel

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 28

SERVICE AND REPLACEMENT PARTS LIST (MODELS 2000-4000)

Ref # Name Of Part Part # 2000 2400 2800 3200 3600 4000

1 Lower Front Jacket Panely 03-1077 1

03-1078 1
03-1079 1
03-1080 1
03-1081 1
03-1082 1

2 Lower Rear Jacket Panel 03-1071 1

03-1072 1
03-1073 1
03-1074 1
03-1075 1
03-1076 1

3 Lower Rear Corner Jacket Trim Panel, Left 03-1088 111111

Lower Rear Corner Jacket Trim Panel, Right 03-1089 111111

4 Lower Front Corner Jacket Trim Panel, Left 03-1090 111111

Lower Front Corner Jacket Trim Panel, Right 03-1091 111111
5 Lower Jacket End Panel, Left & Right 03-1083 111111
6 Inlet/Outlet Header, Bronze 01-0012 111111
7 Return Header, Bronze 01-0013 111111
8 Heat Exchanger, SB75 Tubes 70-1684 1

70-1685 1
70-1686 1
70-1687 1
70-1688 1
70-1689 1

Not Shown

Not Shown

Not Shown

Heat Exchanger, SB111 Tubes 70-1690 1

70-1691 1
70-1692 1
70-1693 1
70-1694 1
70-1695 1

9 O Ring, Inlet/Outlet & Return Headers 06-0001 32 32 32 32 32 32

10 Stud, Inlet/Outlet & Return Headers 57-0223 24 24 24 24 24 24
11 Nut, Inlet/Outlet & Return Headers 57-0491 24 24 24 24 24 24
12 Heat Exchanger “V” Baffle 03-1147 15

03-1148 15
03-1149 15
03-1150 15
03-1151 15
03-1152 15

13 Base Frame Assembly 70-1708 1

70-1709 1
70-1710 1
70-1711 1
70-1712 1
70-1713 1

14 Burner Tube, Aluminized Steel 10-0256 19 23 27 30 34 38

Burner Tube, Aluminized w/ Bracket 70-1851 111222

Burner Tube, Stainless Steel 10-0258 19 23 27 30 34 38

Burner Tube, Stainless w/ Bracket 70-1852 111222

15 Union, 1 1/2" 53-0056 1

Union, 2" 53-0057 1 1 1

Union, 2 1/2" 53-0058 1 1

16 Firing Valve, 1 1/2" 11-0458 1

Firing Valve, 2" 11-0459 1 1 1

Firing Valve, 2 1/2" 11-0460 1 1

17 Main Gas Valve, V8944B, 1 1/2", ( 1 or 2 Stage) 11-0173 1

Main Gas Valve, V8944B, 2", (1 or 2 Stage) 11-0174 1 1 1

Main Gas Valve, V88A, 1 1/2", (1 Stage) 11-0158 1

Main Gas Valve, V88A, 2", (1 Stage) 11-0159 1 1 1

Main Gas Valve, V88A, 2 1/2", (1 Stage) 11-0160 1 1

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 29

Ref # Name Of Part Part # 2000 2400 2800 3200 3600 4000

Not Shown

Not Shown

Not Shown

Not Numbered
Not Shown

24 &25 Upper Rear & Front Jacket Panel 03-1064 1

Not Shown

Main Gas Valve, V5055B, 1 1/2", (Modulating) 11-0253 1

Main Gas Valve, V5055B, 2, (Modulating) 11-0254 1 1 1

Main Gas Valve, V5055B, 2 1/2", (2 Stage or Mod.) 11-0255 1 1

Main Gas Valve Actuator, V4055A, (1 Stage) 11-0301 1 1

Main Gas Valve Actuator, V4055A, (2 Stage) 11-0302 1 1

Main Gas Valve Actuator, V9055A, (Modulating) 11-0303 111111

Main Gas Pressure Regulator RV81, 1 1/2" 11-0503 1

Main Gas Pressure Regulator RV91, 2" 11-0504 1 1 1

Main Gas Pressure Regulator RV111, 2 1/2" 11-0505 1 1

18 “A” Valve, 1 1/2" 11-0453 1

“A” Valve, 2" 11-0454 1 1 1

“A” Valve, 2 1/2" 11-0455 1 1

19 Burner Drawer Side Rail Assy, Left 70-1793 111111

Burner Drawer Side Rail Assy, Right 70-1794 111111

— Burner Spacers 70-1795 1

70-1796 1
70-1797 1
70-1798 1
70-1799 1
70-1800 1

— Heat Shield 70-1733 1

70-1734 1
70-1735 1
70-1736 1
70-1737 1

70-1738 1
End Refractory Panel, Left & Right 05-0050 222222
Center Refractory Panel 05-0051 4468810

20 Corner Refractory Panel 05-0052 4

05-0053 4

05-0054 4

05-0055 4

05-0056 4

05-0057 4

21 Draft Diverter Side Panel, Left & Right 03-1109 222222
22 Draft Diverter Down Draft Baffle 03-1116 1

03-1117 1

03-1118 1

03-1119 1

03-1120 1 1

23 Draft Diverter Top Panel Assembly 70-1666 1

70-1667 1

70-1668 1

70-1669 1

70-1670 1

70-1671 1

03-1065 1

03-1066 1

03-1067 1

03-1068 1

03-1069 1

26 Upper Jacket End Panel, Left & Right 03-1070 222222
27 Upper Rear Corner Jacket Trim Panel, Left 03-1084 111111

Upper Rear Corner Jacket Trim Panel, Right 03-1085 111111

28 Upper Front Corner Jacket Trim Panel, Left 03-1086 111111

Upper Front Corner Jacket Trim Panel, Right 03-1087 111111

29 Top Jacket Panel 03-1051 1

03-1052 1

03-1053 1

03-1054 1

03-1055 1

03-1056 1

30 Top Jacket Channel, Left & Right 03-1063 222222

Pilot, Natural Gas, Q348 10-0103 1 1 1 1
Pilot, LP Gas, Q348 70-0478 1 1 1 1

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONSPage 30

Ref # Name Of Part Part # 2000 2400 2800 3200 3600 4000

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Pilot, Natural Gas, Q179C (*IRI Only) 10-0103 1* 1* 1211
Pilot, LP Gas, Q179C (*IRI Only) 70-0478 1* 1* 1211
Pilot Orifice, Natural Gas 10-0005 111222
Pilot Orifice, LP Gas 10-0004 111222
Pilot Valve, 24 V 11-0017 111111

n Pilot Regulator, RV12LT 11-0041 111111

Manual Pilot Valve 11-0031 111111
Ignition Module, S8610M 16-0054 1 1 1 1
Ignition Module, RM7890A (*IRI Only) 16-0001 1* 1* 1111
Transformer, 40 VA 15-0002 111111
High Limit, L4008E (US only) 14-0104 111111
High Limit, GIP 9869 (CAN only) 14-0117 111111
High Limit, L4008E-1313 (Water Heaters) 14-0105 111111
High Limit, L4008E-1040 (Boilers) 14-0104 111111
Hight Limit, L4008A-1445 (Water Heaters) 14-0103 111111
High Limit, L4008A-1007 (Boilers) 14-0102 111111
Operator, L4008A (US only) 14-0102 111111
Operator, GIP 9868 (CAN only) 14-0116 111111
Operator, L4008A-1007 (Boilers) 14-0102 11111
Operator, L6008A-1242 (Water Heaters) 14-0106 11111
Operator, L4008A-1445 (Water Heaters) 14-0103 11111
Operator, L6008G1009 (2 Stage) 14-0107 11111
Operator, T991E-1018 (Modulating) Boilers 14-0108 11111
Operator, T991E-1034 (Modulating) Water Heaters 14-0110 11111
Operator, T6031A-1052 (Pool Heaters) 14-0003 11111
Orifice, Blank 10-0011 8 10 12 14 16 18
Orifice, Natural Gas, # 17 10-0014 8 10 12 14 16 18
Orifice, Nat Gas, # 18 (2000-4500 ft) 10-0015 8 10 12 14 16 18
Orifice, LP Gas, # 39 10-0026 8 10 12 14 16 18
Orifice, LP Gas, # 40 (2000-4500 ft) 10-0027 8 10 12 14 16 18
Pressure Relief Valve 50# 1” x 1 1/4” 13-0002 1
Pressure Relief Valve 50# 1 1/4” x 1 1/4” 13-0026 11111
Pressure Relief Valve 125# 3/4” x 3/4” 13-0009 1 1
Pressure Relief Valve 125# 3/4” X 1” 13-0003 1
Pressure Relief Valve 125# 1” x 1” 13-0053 1 1 1
Pressure Gauge 13-0301 111111
Thermometer w/ Well 13-0320 111111
Flow Switch 14-0201 111111
Natural to LP Conversion Kit 21-0107 1

21-0108 1

21-0109 1

21-0110 1

21-0111 1

21-0112 1
Conversion Kit Natural to LP Gas 21-0113 1

21-0114 1

21-0115 1

21-0116 1

21-0117 1

21-0118 1
Conversion Kit LP to Nat Gas (2000-4500 ft) 21-0119 1

21-0120 1

21-0121 1

21-0122 1

21-0123 1

21-0124 1
Conversion Kit Nat to LP Gas (2000-4500 ft) 21-0125 1

21-0126 1

21-0127 1

21-0128 1

21-0129 1

21-0130 1

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS Page 31

TROUBLE SHOOTING FLOW CHART
FOR HONEYWELL S8610 CONTROL SYSTEM

Proper line voltage
L1 to L2 on heater

terminal strip

24V on secondary

terminals of Heater

transformer

24V across 24V and 24V

(GND). terminals of S8610

ignition module

On application of 24V,

control produces audible

spark at pilot

Pilot

Ignites

Adjust the pilot gas

pressure using the

pilot regulator. Pilot

ignition problems

can be caused by
high or low pilot

pressure.

Pilot ignites

Check for tripped breaker or open safety

/ limit switch in supply voltage circuit

Check for broken or loose

connection to transformer if none

replace transformer

Check for open Limit in this 24V circuit

Operating Control, High limit, Flow Switch,

LWCO, High / Low Gas Pressure Switches,

Remote Operating Controls etc.

Check for loose or broken ignition lead. Check for shorted pilot electrode.

If pilot and ignition lead test good replace S8610 module

During pilot ignition period (audible spark present)

check for 24V between PV and MV/PV terminals

of S8610 module.

24V at pilot gas

valve leads

A tripped Manual reset

High Limit may

indicate insufficient

Check for loose or

broken wire between

pilot valve and

PV-MV/PV terminals

water flow.

Replace

S8610

module.

Main Flame

Ignites

Manifold pressure in proper

range (3.8”-4.2” N.G.,

10”-11” L.P.) If no pressure on

manifold, during main flame
trial for ignition period. Check
for pressure at tappings of each

main valve. Replace valve

that shows no pressure at

downstream tapping while

powered with pressure at

upstream tapping

With pilot lit: 24V
between the MV and
MV/PV terminals of

the S8610 module

24V at terminals of

all valves in main

gas train

Pilot valves opens.
Confirm that gas is

present at pilot valve

inlet

Insure pilot line and

pilot orifice are clear

and that the pilot is

undamaged. The pilot

ignites.

Check for loose or

broken wire between

MV-MV/PV terminals

Replace pilot solenoid

valve

Replace the pilot

assembly

Replace S8610

module

main valves and

TROUBLE SHOOTING

NOTE
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
An electrical multi meter and slack tube manometer are required for trouble shooting.

Problem

Boiler pounds or knocks

Relief valve leaks

Sooting of heat exchanger

Cause

• Low or no water flow

• Low or no system pressure

• Heat exchanger blocked

•System pressure too high

• Expansion tank is waterlogged

• Expansion tank is isolated

• Return water temperature to low

• Inadequate combustion air

• Rated input has been exceeded

• Incorrect fuel type

Solution

• Ensure that pump is operating
properly - look for voltage through
flow switch.

• Ensure that all system valves are
open.

• Ensure that all air has been bled
from the system.

• Ensure that the maximum
temperature rise of 30°F has
not been exceeded.

• Ensure that water makeup valve
is open and functioning.

• Remove return header and
inspect the heat exchanger tubes.

• Ensure relief valve is properly
sized for the system - never
exceed 160 psi.

• Ensure expansion tank is
properly sized for the system.

• Ensure valve between expansion
tank and the system is open.

• Adjust balancing valves for a
minimum return water
temperature of 110°F (43°C).

• Ensure that the make up air
supply is adequate per NFPA 54/
ANSI Z223.

• Ensure that the vent system is
sized properly, is not blocked or
restricted and that there is
adequate draft present in the
breeching.

• Ensure that the input rate is
correct.

• Ensure that the fuel type supplied
matches the rating plate.

260 North Elm Street 1300 Midway Boulevard
Westfield, MA 01085
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]

Mississauga, Ontario L5T 2G8 Canada

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