ECR International UTICA BOILERS TRB4075 Instruction manual

TRIFIRE SERIES 3
High E󱐰ciency
Oil Fired Hot Water Boiler
INSTALLATION, OPERATION &
MAINTENANCE MANUAL
Models
TRB4075
TRB4090
TRB5100
TRB6130
TRB7165
FOR US SALES ONLY
Manufactured by:
ECR International Inc.
2201 Dwyer Avenue, Utica, NY 13501
Tel. [phone]
www.ecrinternational.com
PN 240013278 REV. A [12/31/2020]

2PN 240013278, Rev. A [12/31/2020]
TRIFIRETRIFIRE OIL-FIRED CAST IRON HOT WATER BOILER OIL-FIRED CAST IRON HOT WATER BOILER
Check our website frequently for updates: www.ecrinternational.com
Information and specications outlined in this manual in eect at the
time of printing of this manual. ECR International reserves the right to
discontinue, change specications or system design at any time without
notice and without incurring any obligation, whatsoever.
Models
TRB4075
TRB5100
TRB6130
TRB7165

3
DIMENSIONS
DIMENSIONS
Sections
Flue Size
Inches
(cm)
Dimension
"A"
Inches
(cm)
Dimension
"B"
Inches
(cm)
Chimney
Vent
Direct
Vent
4 5 (13) 18 ⅜(46.6) 1 ⅛ (32) ¾ (19)
5 5 (13) 21 ⅝(54.8) 1 ⅛ (32) ¾ (19)
6 5 (13) 24 ⅞(63.1) 1 ⅛ (32) ¾ (19)
7 6 (15) 28 ⅛(71.3) ¾ (19) N/A
DIMENSIONS
PN 240013278, Rev. A [12/31/2020]

4
TABLE OF CONTENTS
1 - INTRODUCTION .......................................................................................................5
2 - SAFETY INFORMATION..............................................................................................6
3 - BEFORE YOU START..................................................................................................8
4 - RATINGS & CAPACITIES............................................................................................9
5 - LOCATING THE BOILER........................................................................................... 10
6 - INSTALLATION REQUIREMENTS............................................................................... 11
7 - FRESH AIR FOR COMBUSTION................................................................................. 12
8 - BOILER ASSEMBLY ................................................................................................. 14
9 - BOILER SYSTEM PIPING.......................................................................................... 19
10 - HYDRONIC PIPING................................................................................................ 20
11 - FUEL SUPPLY PIPING ............................................................................................ 33
12 - ANTIFREEZE IN THE SYSTEM................................................................................. 34
13 - ELECTRICAL CONNECTIONS .................................................................................. 35
14 - CHIMNEY AND VENTING CONNECTIONS................................................................. 36
15 - FILLING BOILER ................................................................................................... 39
16 - OPERATING THE BOILER - SYSTEM START-UP ........................................................ 40
17 - OIL BURNER, NOZZLE, & AIR SETTINGS................................................................. 47
18 - MAINTENANCE ..................................................................................................... 54
19 - OIL BOILER / BURNER CLEANING INSTRUCTIONS................................................... 56
20 - TROUBLESHOOTING ............................................................................................. 58
21 - EQUIPMENT AND ACCESSORIES ............................................................................ 60
PN 240013278, Rev. A [12/31/2020]

5
1. Oil Fired Boilers
Boiler is low pressure, sectional cast iron constructed
and tested for maximum working pressure of 65 psi in
accordance with A.S.M.E. (American Society of Mechanical
Engineers) Section IV Standards for cast iron heating
boilers. Capacity rated in accordance with AHRI (Hydronics
Institute).
Boiler is pressure red natural draft (chimney vented)
oil red hot water boiler comprised of cast iron sections,
available with 4, 5, 6 or 7 sections. Sections are held
together by metal push nipples and threaded rods.
4, 5 and 6 section boilers may be eld equipped for direct
vent installations with use of direct vent burner and venting
kits. Direct vent instructions are covered in a separate
supplemental instruction document included with direct
vent venting kit.
Boiler models are capable of ring #2 fuel oil from 0.75
gph up to 1.65 gph.
Boilers include -
• Limit, 220° F maximum, operating control with integral
low water cut o
• Temperature and pressure gauge
• 30 psi relief valve
• Drain valve
WARNING
Installations of boilers and venting shall be done
only by a qualied expert and in accordance with
this manual. Installing or venting a boiler or any
other oil appliance with improper methods or
materials could result in serious injury or death
due to re or to asphyxiation from poisonous gases
such as carbon monoxide which is odorless and
invisible.
!
NOTICE
Surface rust on cast iron sections may be attributed
to manufacturing process as well as condensation
during storage. Surface rust is normal and does not
aect performance or life of boiler.
1 - INTRODUCTION
PN 240013278, Rev. A [12/31/2020]