Product Overview

I-SERIES
Make a great impression with the I-Series Condensing Gas Boiler — delivering iconic
indoor heating solutions. Using the perfect combination of proven technology and
reliability, these boilers are designed with the homeowner in mind. Unlike most combi
boilers, the I-SERIES contains a proportional valve which allows for simultaneous
delivery of domestic hot water and central heating without interruption of the heating flow.
High Output Delivery of Domestic Hot
Water and Central Heating
THE ADVANTAGES
COMFORT &
CONVENIENCE
• Dual zone heating
• Servo based by-pass
control for precise
DHW temperature
control
• Built-in recirculation
logic for dedicated
return and crossover
modes
• Simultaneous
delivery of hot water/
home heating
HEAT ONLY COMBI
MODELS i060SN i090SN i120SN i150SN i060CN i090CN i120CN
PRODUCT DIMENSIONS
18.5 IN. X 26.4 IN. X 10.9 IN.
(471 MM X 671 MM X 276 MM)
18.5 IN. X 26.4 IN. X 10.9 IN.
(471 MM X 671 MM X 276 MM)
UNIT WEIGHT 59.2 LB (27 KG) 62 LB (28 KG) 73.0 LB (33 KG) 76.1 LB (34.5 KG)
MIN GAS INPUT -
HEATING (BTU/H)
15,000 15,000
MAX. INPUT - HEATING
(BTU/H)
60,000 90,000 120,000 150,000 60,000 90,000 120,000
MAX. INPUT - DOMESTIC
HOT WATER (BTU/H)
N/A 160,000 199,000
MAX. INPUT - DHW
@ 70° F
∆
T
N/A 4.1 GPM (15 L/MIN) 5.1 GPM (19 L/MIN)
HEATING TURNDOWN
RATIO
4 : 1 6 : 1 8 : 1 10 : 1 4 : 1 6 : 1 8 : 1
DHW TURNDOWN
RATIO
N/A N/A N/A N/A 10.7 : 1 10.7 : 1 13.3 : 1
AFUE RATING 95.1% 95.9% 95.5% 96.0% 95.1% 95.9% 95.5%
CIRCULATING PUMP FIELD SUPPLIED THREE SPEED (GRUNDFOS® UPS 15-78)
APPROVED VENTING PVC, CPVC, POLYPROPYLENE, STAINLESS STEEL
INCLUDED IN THE BOX:
PROPANE FIELD CONVERSION KIT, OUTDOOR RESET SENSOR, INTEGRATED VENT ADAPTER FOR 2 IN. PVC, PP
AND 3 IN. X 5 INC. CONCENTRIC VENTING, CH PRESSURE RELIEF VALVE (30 PSI), MOUNTING BRACKET
ADDITIONAL
ACCESSORIES
PRIMARY-SECONDARY HEATING KITS, CONDENSATE NEUTRALIZER, SCALE CUTTER AND CARTRIDGE,
DHW ISOLATION VALVE KIT (FOR QUICK ISOLATION OF COMBI BOILER DHW CONNECTIONS),
MC-601 CONTROLLER
FLEXIBLE
INSTALLATION
• Compact design
• Versatile venting
options including
2-inch PVC up to
65 feet
• Easy parameter
settings
• NG with LP
conversion
OPERATIONAL
PERFORMANCE
• 95% AFUE
eciency
• High volume of
hot water delivery
• Outdoor Reset
optimizes home
heating
performance