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RATINGS
Boiler
Maximum Input
Model
CHG150
CHG225
SPECIFICATIONS
Boiler
Diameter
Model
(inches)
CHG150
CHG225
DIMENSIONS
Boiler
Model
'A'
CHG150
23-3/8
CHG225
27
* All dimensions in inches
LWCO
43-3/4
Front View
STANDARD EQUIPMENT
Deluxe Insulated Jacket
Circulator - Shipped Loose
Pressure Temperature Gauge
Drain Valve
MCBA Microprocessor Control
Form No. PL81401311000-6/06-10MS
Minimum Input
(MBH)
(MBH)
150,000
30,000
225,000
56,250
Maximum
Vent
Air Inlet
Diameter
(inches)
(Equiv. Ft.)
3
4
4
4
'B'
'C'
18-3/4
8-1/8
22-3/8
8-1/4
Temperature/
Pressure
4" Air
Gauge
Inlet Collar
F
Vent
Adapter
Low Voltage
Connections
Line Voltage
Connections
Alternate
1-1/4 Return
Alternate
Condensate Drain
Connection
Digital Touchpad Display Panel
Variable Speed Combustion Blower
Negative Regulation Gas Valve
Venturi
Stainless Steel Mesh Burner
Supply Water Temperature Sensor
w/ Outdoor Reset (standard)
Return Water Temperature Sensor
© 2006 U.S. Boiler Company, Inc. - Lancaster, PA
DOE
Heating Capacity
(MBH)
135,000
202,000
Horizontal Venting
Maximum
Maximum
Vent
Air Inlet
Length
Length
(Equiv. Ft.)
(Equiv. Ft.)
55
60
55
60
'D'
'E'
13
3-1/2
7-1/8
3
Relief
Valve
1-1/4 Supply
G
H
Alternate Gas
Connection
Right View
Phone: 1-888-432-8887
www.burnham.com
I=B=R
Net Rating
(MBH)
117,000
176,000
Vertical Venting
Maximum
Vent
Air Inlet
Length
Length
(Equiv. Ft.)
49.5
52
47
52
B
D
E
A
Top View
1-1/4 Return
Condensate Drain
Connection
Back View
Flue Gas Temperature Sensor
Flame Sensor
Differential Pressure Switch
High Limit
LWCO and Transformer
Condensate Trap
Air Inlet Screen
Safety Relief Valve
AFUE %
93.10
94.20
Approx.
Water
Shipping
Volume
Weight
(gal.)
(lbs.)
1.3
258
1.1
323
C
22-1/4
Gas
Connection
Printed in the U.S.A.
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