ECR International ARGO Benutzerhandbuch
APPLICATION GUIDE
FOR
M U LTI PLE
GAS FIRED
HOT WATER BOILER
INSTALLATIONS
UP TO 4 UNITS
Manufactured by:
ECR International Inc.
2201 Dwyer Avenue, Utica, NY 13501
Tel. 800 325-5479
www.ecrinternational.com
PN 240013666 REV. A [06/30/2022]
2PN 240013666 REV. A [06/30/2022]
Table of Contents
SAFETY INFORMATION ������������������������������������������������������������� 3-4
CODES AND STANDARDS ������������������������������������������������������������ 5
ENGINEERING AND DIMENSIONAL DATA�����������������������������������������6
BOILER RATINGS & CAPACITIES ��������������������������������������������������� 7
TYPICAL LAYOUTS FOR HOT WATER HEATING SYSTEMS����������������8-12
COMBUSTION AIR REQUIREMENTS ����������������������������������������������13
COMMON VENTING REQUIREMENTS���������������������������������������������14
VENTILATION AND COMBUSTION ������������������������������������������������15
VENT INSTALLATION������������������������������������������������������������������16
REMOVAL OF BOILER FROM VENTING SYSTEM�������������������������������17
GAS SERVICE ���������������������������������������������������������������������������18
OPTIONAL CONTROLS AND WIRING���������������������������������������������19
ARGO AMB CONTROLS ���������������������������������������������������������� 20-22
3PN 240013666 REV. A [06/30/2022]
NOTICE
Used to address practices not related to
personal injury�
CAUTION
Indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury�
!!
WARNING
Indicates a hazardous situation which, if not
avoided, could result in death or serious injury�
!
DANGER
Indicates a hazardous situation which, if not
avoided, WILL result in death or serious injury
!
This is the safety alert symbol� Symbol
alerts you to potential personal injury
hazards� Obey all safety messages
following this symbol to avoid possible
injury or death�
Become familiar with symbols identifyingBecome familiar with symbols identifying
potential hazards.potential hazards.
WARNING
Fire, Explosion, Asphyxiation, Electrical shock
hazard! Flooding will result in damages such as
electrical problems, corrosion, inoperative parts,
mold and other unforeseen issues which can
occur over time� Any equipment determined by
a professional as damaged by a ood, dened as
excess of water or other liquid, shall be replaced�
Failure to follow these directions will result in a
Hazardous Situation�
!
FOR YOUR SAFETY READ BEFORE OPERATING
Hot Water Can Scald!
Water heated to temperature for clothes
washing, dish washing and other sanitizing
needs can scald and cause permanent injury�
Children, elderly, and inrm or physically
handicapped persons are more likely to be
permanently injured by hot water� Never leave
them unattended in bathtub or shower� Never
allow small children to use a hot water tap or
draw their own bath�
If anyone using hot water in the building ts the
above description, or if state laws or local codes
require certain water temperatures at hot water
taps, you must take special precautions:
• Use lowest possible temperature setting�
• Install some type of tempering device, such
as an automatic mixing valve, at hot water
tap or water heater� Automatic mixing valve
must be selected and installed according
to manufacturer's recommendations and
instructions�
• Water passing out of drain valves may be
extremely hot� To avoid injury:
Make sure all connections are tight�
Direct water ow away from any person.
DANGER
SAFETY INFORMATION
4PN 240013666 REV. A [06/30/2022]
CAUTION
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 gas supplier’s
instructions�
• If you cannot reach your gas supplier, call the re
department�
!!
SAFETY INFORMATION
WARNING
Construction materials of appliance and
products of combustion and fuel contain
alumina, silica, heavy metals, carbon monoxide,
nitrogen oxides, aldehydes and /or other toxic
or harmful substances which can cause death or
serious injury and which are known to the State
of California to cause cancer, birth defects and
other reproductive harm� Always use proper
safety clothing, respirators and equipment when
servicing or working nearby the appliance�
!
WARNING
Combustion chamber insulation in this product
contains ceramic ber material. Ceramic bers
can be converted to cristobalite in very high
temperature applications� The International
Agency for Research on Cancer (IARC) has
concluded, Crystalline silica inhaled in the
form of quartz or cristobalite from occupational
sources is carcinogenic to humans (Group1)�
Avoid breathing dust and contact with skin and
eyes. Use NIOSH certied dust respirator (N95).
This type of respirator is based on the OSHA
requirements for cristobalite at the time this
document was written� Other types of respirators
may be needed depending on the job site
conditions� Current NIOSH recommendations can
be found on the NIOSH website https://www�cdc�
gov/niosh/topics/silica/� approved respirators,
manufacturers, and phone numbers are also
listed on this website� Wear long-sleeved, loose
tting clothing, gloves, and eye protection. Apply
enough water to the combustion chamber lining
to prevent dust� Wash potentially contaminated
clothes separately from other clothing� Rinse
clothes washer thoroughly�
NIOSH stated First Aid� Eye: Irrigate immediately�
Breathing: Fresh air�
!
WARNING
This prod
uct contains Fibrous glass� Fibrous
glass is a synthetic ber made from tiny particles
of glass. Fibrous glass has been classied as a
possible human carcinogen� When disturbed as a
result of servicing or repair, brous glass becomes
airborne and, if inhaled, may be hazardous to
your health� It can harm the eyes, skin, and the
lungs. Airborne bers from these materials have
been listed by the State of California as a possible
cause of cancer through inhalation� Adhere
to the following precautions and procedures�
Avoid breathing dust and contact with skin and
eyes. Use NIOSH certied dust respirator (e.g.,
N95)� Other types of respirators may be needed
depending on the job site conditions� Current
NIOSH recommendations can be found on the
NIOSH website https://www�cdc�gov/niosh/�
Approved respirators, manufacturers, and phone
numbers are also listed on this website� Wear
appropriate personal protective clothing to
prevent skin contact, as well as gloves and eye
protection� Wash skin daily at end of each work
shift, and prior to eating, drinking, smoking,
etc� Workers whose clothing may have been
contaminated should change into uncontaminated
clothing before leaving the work premises� Wash
potentially contaminated clothes separately from
other clothing� Rinse clothes washer thoroughly�
Follow all Local, State and Federal guidelines for
disposal�
NIOSH stated First Aid� Eye: Irrigate immediately�
Breathing: Fresh air�
!
5PN 240013666 REV. A [06/30/2022]
Installation shall be performed by a qualifed service
agency�
This instruction shall be used in conjunction with each
unit’s Installation, Operation and Maintanence Manual�
Installation shall conform to requirements of
authority having jurisdiction or in absence of such
requirements:
•
United States
• National Fuel Gas Code, ANSI Z223�1/NFPA 54
.
• National Electrical Code, NFPA 70�
• Canada
• Natural Gas and Propane Installation Code,
CAN/CSA B149�1 and B149�2
• Canadian Electrical Code, Part I, Safety Standard
for Electrical Installations, CSA C22�1
Where required by authority having jurisdiction,
installation shall conform to Standard for Controls
and Safety Devices for Automatically Fired Boilers,
ANSI/ASME CSD-1.
Additional manual reset low water cuto may be required.
Additional manual reset high temp limit may be required�
Massachusetts:
Boiler installation must conform to Commonwealth of
Massachusetts code 248 CMR which includes but is not
limited to installation by licensed plumber or gas tter.
WARNING
Fire, explosion, asphyxiation and electrical shock
hazard� Improper installation could result in
death or serious injury� Read this instruction
and individual boiler’s Installation, Operation
& Maintenance Manual and understand all
requirements, including requirements of authority
having jurisdiction, before beginning installation�
Installation not complete until appliance operation
veried per Installation, Operation & Maintenance
Manual provided with each boiler��
!
CODES AND STANDARDS
Codes and Standards
WARNING
Keep boiler area clear and free from
combustible materials, gasoline and other
ammable vapors and liquids.
DO NOT obstruct air openings to the boiler
room�
Modication, substitution or elimination
of factory equipped, supplied or specied
components may result in personal injury or
loss of life�
TO THE OWNER - Installation and service of
this boiler must be performed by a qualied
installer�
TO THE INSTALLER - Leave all instructions with
boiler for future reference�
When this product is installed in the
Commonwealth of Massachusetts the
installation must be performed by a Licensed
Plumber or Licensed Gas Fitter�
!
6PN 240013666 REV. A [06/30/2022]
Engineering and Dimensional Data
“C”
“A” “B” “A” “B” “A”
FRONT VIEW
RIGHT SIDE VIEW
5-3/8”
36-3/8”
12-1/4”
4-3/4”
26-1/2”
2”
29”
5-7/16”
5”
13-1/2”
3-1/16”
Table 1
WARNING
Fire, explosion, asphyxiation and electrical shock hazard� Improper installation could result in death
or serious injury� Read this instruction and individual boiler’s Installation, Operation & Maintenance
Manual and understand all requirements, including requirements of authority having jurisdiction, before
beginning installation. Installation not complete until appliance operation veried per Installation,
Operation & Maintenance Manual provided with each boiler�
!
Figure 1 - Dimensional Data
MULTIPLE GAS FIRED HOT WATER BOILER ENGINEERING AND DIMENSIONAL DATA*
Boiler Size NUMBER OF
BOILERS
SHIPPING
WEIGHT
(TOTAL)
WATER
CONTENT
(GALLONS)
TOTAL**
DIMENSIONS IN INCHES
A B*** C
8 Section 2 1105 20�2 27�5 10 75
9 Section 2 1232 23�6 30�75 10 81�5
8 Section 3 1656 30�3 27�5 10 112�5
9 Section 3 1848 34�8 30�75 10 122�25
8 Section 4 2210 40�4 27�5 10 150
9 Section 4 2464 47�2 30�75 10 163
*Consult Individual Boiler Installation & Operation Manual for Additional Information
** Exclusive of Field Installed External Piping
*** Requires 4’ sensor wire (240007708) to relocate Hydrolevel 3200 control to front of boiler for
access� If control is left in original position 24”�
7PN 240013666 REV. A [06/30/2022]
Boiler Ratings & Capacities
BOILER RATINGS
Boiler Size NUMBER OF
BOILERS
TOTAL
RATED
INPUT
TOTAL
RATED HEAT
CAPACITY
TOTAL
NET AHRI
RATING
FLUE
OUTLET
DIAMETER,
INCHES
COMMON
VENT
DIAMETER,
INCHES
CHIMNEY
DIAMETER
AND
HEIGHT
8 Section 2 525 442 384 7 12 12" x 20'
9 Section 2 598 504 438 7 12 12" x 20'
8 Section 3 787�5 663 576 7 14 14" x 20'
9 Section 3 897 756 657 7 14 14" x 20'
8 Section 4 1050 884 768 7 16 16" x 20'
9 Section 4 1196 1008 884 7 16 16" x 20'
Table 2
FRONT VIEW
FLUE OUTLET FLUE OUTLET
COMMON VENT
NOTE: See Boiler Installation Operation and Maintenance Manual included in
Literature for specic boiler installation requirements.
Figure 2 - Front View Common Venting
8PN 240013666 REV. A [06/30/2022]
ACCESS*
FRONT
ACCESS*
10"MIN.*
(S)
(R)
(S)
(R)
(S)
(R)
(B)
SYSTEM
SUPPLY
SYSTEM
RETURN
(B)
Typical Layouts for Hot Water Heating Systems
Figure 3 - Room Sizing - Parallel Reverse Return (3 Boilers shown)
Note:
• Access *is minimum 24” service clearance�
• Vent position, relief valve location, supply and return piping will vary depending on type of units�
LEGEND - PIPE SIZING
(S),(R) - 1¼ NPT BOILER SUPPLY AND RETURN
(B) - HEADER SIZING - REFER TO TABLE 3
(Supply & Return at Same Wall of Boiler Room)
9PN 240013666 REV. A [06/30/2022]
Figure 4 - Three (3) Unit Conrguration Parallel Reverse Piping Room Sizing
Note:
• Access *is minimum 24” service clearance�
• Vent position, relief valve location, supply and return piping will vary depending on type of units�
LEGEND - PIPE SIZING
(S), (R) - 1¼ NPT BOILER SUPPLY AND RETURN
(B) - HEADER - REFER TO TABLE 3
Typical Layouts for Hot Water Heating Systems
10"MIN.*
ACCESS*
FRONT
(B)
(S)
(R)
(B) ACCESS*
RETURN
(R)
(S)
(R)
(S)
SUPPLY
ACCESS*
(Supply & Return at Opposite Walls of Boiler Room)
10 PN 240013666 REV. A [06/30/2022]
Typical Layouts for Hot Water Heating Systems
Figure 5 - Typical Layouts for Modular Gas Fired Systems - Up to 4 Boilers Parallel Piping
BOILER
#1
BOILER
#2
BOILER
#3
BOILER
#4
UP TO MAX. (INLINE)
OF 163"
TO FLOOR
DRAIN
(TYP)
(1 1/4")
(1 1/4")
SYSTEM
RETURN
UP TO 4 BOILERS
(B HEADER)
SYSTEM
SUPPLY
2
T
SYSTEM
TEMPERATURE
SENSOR
4
L
T1
HIGH
LIMIT
5
*
(B HEADER)
3
LEGEND
- Locate temperature sensor within 3 to 5 feet after supply header�
- Maximum overall length is based on using (4) boilers having largest
footprint and 24” minimum service clearance between units�
4- Low Water Cuto Shall be mounted above the supply tting of the
boilers�
5 - CSD-1 High Limit Shall be within 1’ (1 foot) of nearest boiler�
3
2
Note:
• Modules may be placed back to back to save space�
• Refer to gure 3 for header size.
*For sizing system or boiler circulators, apply 10 GPM per 100,000 BTU (net) output�
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