Energy Star ESC Manuel utilisateur

As an ENERGY STAR®Partner, U.S. Boiler Company has determined that this boiler meets the ENERGY
STAR®guidelines for energy efficiency established by the United States Environmental Protection Agency (EPA).
INSTALLATION, OPERATING AND
SERVICE INSTRUCTIONS FOR
ESC™
ENHANCED SEALED COMBUSTION
Gas - Fired Boiler
102601-02 - 9/11
For service or repairs to boiler, call your heating contractor. When seeking information on boiler, provide
Boiler Model Number and Serial Number as shown on Rating Label.
Boiler Model Number
ESC
Boiler Serial Number Installation Date
Heating Contractor Phone Number
Address
9700609
Price - $5.00

2
FOLLOW ALL INSTRUCTIONS and warnings
printed in this manual and posted on the boiler.
INSPECT THE BOILER ANNUALLY. To keep your
boiler safe and efcient, have a service technician
follow the Service checklist near the end of this
manual.
IF YOU ARE NOT QUALIFIED to install or service
boilers, do not install or service this one.
THE BOILER MAY LEAK WATER at the end of
its useful life. Be sure to protect walls, carpets,
and valuables from water that could leak from the
boiler.
PROTECT YOUR HOME IN FREEZING
WEATHER. A power outage, safety lockout, or
component failure will prevent your boiler from
lighting. In winter, your pipes may freeze and
cause extensive property damage. If you must
leave your home unattended for an extended time
when outdoor temperatures are below 32°F, rst
turn off your home’s main water supply and drain
the water from all pipes.
DO NOT BLOCK AIR FLOW into or around the
boiler. Insufcient air may cause the boiler to
produce carbon monoxide or start a re.
KEEP FLAMMABLE LIQUIDS AWAY from the
boiler, including paint, solvents, and gasoline.
The boiler may ignite the vapors from the liquids
causing explosion or re.
KEEP CHILDREN AND PETS away from hot
surfaces of the boiler, boiler piping, and vent pipe.
CARBON MONOXIDE (CO) is an odorless, deadly
gas that may be introduced into your home by
any malfunctioning fuel-burning product, including
your boiler. Consider installing CO alarms near
bedrooms in all levels of the building to warn you
and your family of potential CO exposure.
WARNINGS FOR THE HOMEOWNER
READ THIS ENTIRE MANUAL before attempting
installation, start-up, or service. Improper
installation, adjustment, alteration, service, or
maintenance may cause serious property damage,
personal injury, or death.
DO NOT DISCONNECT PIPE FITTINGS on the
boiler or in the heating system without rst verifying
that the system is cool and free of pressure and
that your clothing will protect you from a release
of hot water or steam. Do not rely solely on the
boiler’s temperature and pressure gage when
making this judgment.
USE PROPER PERSONAL PROTECTION
EQUIPMENT when servicing or working near the
boiler. Materials of construction, ue products, and
fuel contain alumina, silica, heavy metals, carbon
monoxide, nitrogen oxides, and/or other toxic or
harmful substances that can are hazardous to
health and life and that are known to the State of
California to cause cancer, birth defects, and other
reproductive harm.
INSTALL ALL GUARDS, cover plates, and
enclosures before operating the boiler.
SIZE THE BOILER PROPERLY relative to the
heat load. A grossly oversized boiler will cycle
excessively and this will lead to premature failure
of the boiler and its components. Our warranty
does not apply to damage from excessive cycling.
ADHERE TO ALL LOCAL CODE
REQUIREMENTS. Contact your local code
inspector prior to installation. In the absence of
a local code, adhere to the National Fuel Gas
Code ANSI Z223.1/NFPA 54 or CAN/CSA B149.1,
Natural Gas and Propane Installation Code.
ALL WIRING must comply with the National
Electrical Code ANSI/NFPA 70 (in the USA) or the
Canadian Electrical Code CSA C22.1 (in Canada)
and any local regulations.
IT IS THE RESPONSIBILITY OF THE INSTALLING
CONTRACTOR to see that all controls are correctly
installed and are operating properly when installation
is complete including verifying that the limit sensor
is fully installed.
Failure to properly install Limit Sensor may result in
property damage, personal injury or loss of life due to
elevated operating temperatures and/or pressures.
WARNINGS FOR THE INSTALLER

3
Special Installation Requirements for Massachusetts
A. For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in
whole or in part for residential purposes and where the side wall exhaust vent termination is less than seven (7)
feet above grade, the following requirements shall be satised:
1. If there is no carbon monoxide detector with an alarm already installed in compliance with the most current
edition of NFPA 720, NFPA 70 and the Massachusetts State Building Code in the residential unit served by the
side wall horizontally vented gas fueled equipment, a battery operated carbon monoxide detector with an alarm
shall be installed in compliance with the most current edition of NFPA 720, NFPA 70 and the Massachusetts
State Building Code.
2. In addition to the above requirements, if there is not one already present, a carbon monoxide detector with an
alarm and a battery back-up shall be installed and located in accordance with the installation requirements
supplied with the detector on the oor level where the gas equipment is installed. The carbon monoxide
detector with an alarm shall comply with 527 CMR, ANSI/UL 2034 Standards or CSA 6.19 and the most
current edition of NFPA 720. In the event that the requirements of this subdivision can not be met at the time
of the completion of the installation of the equipment, the installer shall have a period of thirty (30) days to
comply with this requirement; provided, however, that during said thirty (30) day period, a battery operated
carbon monoxide detector with an alarm shall be installed in compliance with the most current edition of NFPA
720, NFPA 70 and the Massachusetts State Building Code. In the event that the side wall horizontally vented
gas fueled equipment is installed in a crawl space or an attic, the carbon monoxide detector may be installed
on the next adjacent habitable oor level. Such detector may be a battery operated carbon monoxide detector
with an alarm and shall be installed in compliance with the most current edition of NFPA 720, NFPA 70 and the
Massachusetts State Building Code.
3. A metal or plastic identication plate shall be permanently mounted to the exterior of the building at a minimum
height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas
fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in
size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
4. A nal inspection by the state or local gas inspector of the side wall horizontally vented equipment shall not
be performed until proof is provided that the state or local electrical inspector having jurisdiction has granted a
permit for installation of carbon monoxide detectors and alarms as required above.
B. EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a) 1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current
edition of NFPA 54 as adopted by the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or in part for residential purposes.
C. When the manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting
system design or venting system components with the equipment, the instructions for installation of the equipment
and the venting system shall include:
1. A complete parts list for the venting system design or venting system; and
2. Detailed instructions for the installation of the venting system design or the venting system components.
D. When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not
provide the parts for venting ue gases, but identies “special venting systems”, the following shall be satised:
1. The referenced “special venting system” instructions shall be included with the appliance or equipment
installation instructions; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions for that system
shall include a parts list and detailed installation instructions.
E. A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment,
all venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain
with the appliance or equipment at the completion of the installation.

4
Congratulations on your purchase of a new ESC™ boiler—designed and constructed to provide you with
years of reliable service.
• ENERGY STAR™ efficiency – friendly on the environment and your wallet.
• Cast iron heat exchanger – for reliability and durability, nothing beats a cast iron heat exchanger
made at Burnham Foundry, LLC in Zanesville, Ohio.
• IQ Control™ – the most advanced and easiest to use control available.
• System-friendly – built-in protection from condensation and thermal shock.
1. ESC™Boiler
2. Circulator & Gasket Kit
q Taco 007-2 (8056170)
qGrundfos UP-15 (102805-01)
qB & G NRF-22 (8056174)
3. Miscellaneous Parts Carton
Cartons Include:
(1) Safety Relief Valve, Set at 30 PSI
(1) Pressure/Temperature Gauge
(1) Water Manifold
(1) Circulator Harness
(1) Vent Connector
(1) Vent Terminal
(1) Air Intake Terminal
(1) Drain Valve
q ESC3/ ESC4: P/N 102648-01
q ESC5/ ESC 6: P/N 102648-02
q ESC7: P/N 102648-03
q ESC8/ ESC9: P/N 102648-04
4. Instruction Envelope (102656-01)
q Instruction & Operation Manual
(102601-01)
q Hydronics Institute Instructions
(81460061)
q Warranty Sheet (103203-01)
qWarranty Card, (103204-01
q Equipment List (103586-01)
What's in the crate?

5
ESC Series
Boiler Model Input (MBH) Output (MBH) Net I=B=R
Water (MBH) AFUE (%)
ESC3 70 60 52 85.5
ESC4 105 90 78 85.4
ESC5 140 120 104 85.3
ESC6 175 150 130 85.2
ESC7 210 179 156 85.0
ESC8 245 208 181 84.5*
ESC9 280 238 207 84.0*
* Do not meet ENERGY STAR requirements
Ratings
SPECIFICATIONS
Boiler
Model Depth Width Height Supply NPT
(inch)
Return
NPT (inch)
Vent
(inch)
Air
Intake
(inch)
Gas NPT
(inch)
Relief Valve
NPT
(inch)
Drain
IPS
(inch)
ESC3 33 12¾ 41 1¼ 1¼ 3 3 ½ ¾ ¾
ESC4 33 15½ 41 1¼ 1¼ 3 3 ½ ¾ ¾
ESC5 33 18½ 41 1¼ 1¼ 3 4 ½ ¾ ¾
ESC6 33 21½ 41 1¼ 1¼ 3 4 ½ ¾ ¾
ESC7 33 24¾ 41 1¼ 1¼ 3 5 ¾ ¾ ¾
ESC8 33 27¾ 41 1¼ 1¼ 4 5 ¾ ¾ ¾
ESC9 33 30¾ 41 1¼ 1¼ 4 5 ¾ ¾ ¾
Dimensions, Weights and Connections
Electrical Requirements: 120VAC, 60 Hz, 1-ph, 15A
Boiler
Model
Allowable Supply Water
Temperature (°F)
Minimum Return Water
Temperature (°F)
Minimum Flow
(GPM)
Waterside Pressure Drop
at 20°F DT (Ft. of Head)
ESC3 130-220 110 None <1
ESC4 130-220 110 None <1
ESC5 130-220 110 None <1
ESC6 130-220 110 None <1
ESC7 130-220 110 None <1
ESC8 130-220 110 None <1
ESC9 130-220 110 None <1
Water Temperatures and Flows
Boiler Model Shipping Weight (lbs) Empty Weight (lbs) Water Content (gal)
ESC3 250 170 2
ESC4 300 220 3
ESC5 350 270 4
ESC6 410 320 5
ESC7 460 370 5
ESC8 510 420 6
ESC9 560 470 7
Weights and Volume

6
Figure S-1: Minimum Clearances to Combustibles
SPECIFICATIONS (continued)

7
Installation:
1. Unpack the crate ............................................................................................. 8
2. Position the boiler ............................................................................................ 8
3. Provide combustion air .................................................................................... 9
4. Connect venting............................................................................................... 9
5. Connect gas piping........................................................................................ 11
6. Connect boiler water piping ........................................................................... 11
7. Connect electrical wiring................................................................................ 13
8. Program the controls ..................................................................................... 14
9. Check for gas and water leaks ...................................................................... 16
10. Perform startup checks and adjustments ...................................................... 17
Annual Maintenance Checklist............................................................................ 18
Troubleshooting.................................................................................................... 19
Repair Parts List................................................................................................... 22
Internal Wiring....................................................................................................... 30
Appendices:
A – Combustion Air.................................................................................................. 35
B – Venting .............................................................................................................. 36
C – Gas Piping ....................................................................................................... 46
D – System Piping...................................................................................................48
E – Filling the System and Checking for Leaks.......................................................54
F – Adjusting Gas Input Rate ..................................................................................55
G – Checking Draft and Combustion.......................................................................57
H – Burnham® IQ Control System ..........................................................................58
BOILER QUICK-START

8
THE BOILER IS TOP-HEAVY. Do not
allow it to tip over.
1. Remove the sleeve.
2. Remove the contents from the skid, except
the boiler.
3. Remove the four (4) hex-drive lag screws
holding the boiler to the skid (Figure 1-a).
1. UNPACK THE CRATE
4. Tip the boiler and shimmy it off the skid.
2. POSITION THE BOILER
WARNINGS
OBSERVE MINIMUM CLEARANCES to
combustible walls and ceilings to avoid potential
re hazard.
DO NOT INSTALL ON CARPET. This may cause
a re.
INSTALLING THE BOILER NEAR A SOURCE OF
FLAMMABLE LIQUIDS or gases may cause re or
explosion.
CLEAN BURNERS DAILY if operating the boiler in
a dusty environment.
PROTECT IGNITION SYSTEM COMPONENTS
from sources of water that may spray, drip, or rain
on them during installation or service.
1-a 1-b
1. Slide the boiler into desired location.
2. Meet the minimum clearances to
combustible construction per the
Specification Section of this manual.
3. Allow 24" service clearance in front and on
the left side of the boiler.
4. Level the boiler, using shims as necessary.

9
3. PROVIDE COMBUSTION AIR
INSUFFICIENT COMBUSTION AIR
SUPPLY may result in the production and
release of deadly carbon monoxide (CO) into the
home.
Like all fuel-burning appliances, boilers need air to
operate reliably and safely.
1. If equipping for direct vent (sealed
combustion), provide combustion air
according to Appendix B2—Venting for
Direct Vent boilers.
2. If not equipping the ESC for direct vent,
provide combustion air from the boiler room
according to Appendix A—Combustion Air.
4. CONNECT VENTING
IMPROPER VENTING may result in
property damage and the release of
deadly carbon monoxide (CO) into the home.
Observe all general venting guidelines provided in
Appendix B—Venting. Additionally:
Follow all instructions in Appendix B-2 Direct Vent
or B-3 Power Vent.
1. For the exhaust, attach special (Category
IV) gas vent to the fan outlet using a single
sheetmetal screw (Figure 4-a).
2. Congure the air intake:
(1) To equip the ESC for outdoor
combustion air (direct vent), attach the
4-a 4-b
plastic or metal intake air pipe to the
inlet air duct.
(2) To equip the ESC for indoor combustion
air (power vent), attach the air intake
terminal to the boiler's inlet air duct with
a single sheetmetal screw (Figure 4-b).
3. For horizontal venting, follow the instructions
in Appendix B2 Direct Venting, Special
Instructions for Stainless Steel Venting
Horizontal Installations, Specically,
(1) Cut a hole in the exterior wall, large
enough to t the wall thimble. Hole
diameter for the ESC3-7 is 7", hole
diameter for the ESC8-9 is 8".
(2) Install wall thimble.

10
4-c
4. CONNECT VENTING (continued)
(3) Install vent piping.
(4) When conguring the ESC for Power
Vent (indoor combustion air) install a 45°
vent elbow, pointing downward.
(5) Install vent terminal and seal around all
exterior openings.
(6) The nal installation should appear as in
Figure 4-c.
4. For vertical venting, follow instructions in
Appendix B2 Direct Venting, Special
Instructions for Stainless Steel Venting
Vertical Installations, Specically,
(1) Install re stops and wall thimbles.
(2) Install vent piping and vert terminal.
(3) Install condensate line.
(4) Install roof ashing and roof supports.
(5) The nal installation should appear as in
Figure B-7 in Appendix B-2.
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