Buderus GB162-80 User manual

Engineering
Submittal
Sheet
Bosch Thermotechnology Corp. reserves the right to make changes without notice due to
continuing engineering and technological advances | BTC 432008101 C | 04.2012
Bosch Thermotechnology Corporation
Londonderry, NH • Ft. Lauderdale, FL • Irvine, CA
Tel: [phone] Fax: [phone] www.buderus.us
GB162-80
Condensing Gas Boiler
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Engineering Specifications
There shall be provided and installed a quantity of _____ Buderus
GB162/80 wall-hung condensing hot water boiler(s), suitable for induced
draft firing with natural gas or propane. Boiler(s) shall have an AFUE
efficiency rating of 93.8%.
Boiler(s) shall utilize ALUplus heat exchanger with high quality condensing
heating surface with plasma polymerization for a longer service life and
lower maintenance.
Boiler(s) shall be constructed, tested and labeled in accordance with
ASME Section IV and shall bear the ASME stamp. Boilers shall be CSA
approved and have an applicable Canadian Registration number.
Heat exchanger shall be labeled for 58psig maximum working pressure
rating. An integrated pressure sensor shall ensure minimum and maximum
water pressures are not exceeded.
Boiler shall be capable of modulating firing from 100% to 25% of capacity
continuously based upon (i) supply and return water temperatures, and/or
(ii) outdoor reset computerized control. Gross stack temperatures at full
firing rate shall not exceed 180°F.
Standard equipment shall include a pump group assembly; Grundfos
UP26-99 circulator, integral flow check, supply and return shut-off
valves, pressure gauge, 30psig relief valve and gas supply shut-
off valve. Hydraulic separator option is required for system piping
connection.
Minimal clearances shall be integral to the boiler cabinet design;
a hinged door with locking feature shall be used to access heat
exchanger, burner components, gas valve and sensors.
Integrated controller shall monitor and control all combustion process
functions, control of the boiler water temperature to a value required
by the connected components and shall display current water
temperatures or fault conditions with changes in operation status.
Additional control functions shall include an on/off button, rotary
temperature knobs, LED for burner operation and button for fault
condition reset.
Independent outdoor temperature reset may be accomplished with the
optional AM10 controller; a mounting enclosure shall be included with
the provided resistance dependent sensor.
Boiler Overview
US
C
®

Bosch Thermotechnology Corp. reserves the right to make changes without notice due to
continuing engineering and technological advances | BTC 432008101 C | 04.2012
Bosch Thermotechnology Corporation
Londonderry, NH • Ft. Lauderdale, FL • Irvine, CA
Tel: [phone] Fax: [phone] www.buderus.us
Engineering Submittal Sheet
GB162-80
Condensing Gas Boiler
Performance Data
Unit Value
Gas input MBtu/h 290
Gross rated output MBtu/h 260
IBR Rating MBtu/h 226
Boiler horsepower H.P 7.7
AFUE %93.8
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General Data
Unit Value
Boiler category – Condensing
Heat exchanger construction – Aluminum
Maximum allowable working pressure PSIG 58
Water content Gallons 1.30
Weight - shipping (approx.) Lbs 189
Weight - operating (approx.) Lbs 200
Standard relief valve size (inlet x outlet) Inch ¾x ¾
Standard relief valve pressure rating (other capacities available upon request) PSI 30
Venting category –IV
Operational Data
Unit Value
Maximum supply water temperature °F 180
Minimum return water temperature °F < 40° F Supply
Electrical Data
Unit Value
Electrical voltage mains V AC 120
Power consumption max load (without pump group) Watts 104
Power consumption partial load (without pump group) Watts 29
Max. permissible fuse rating Amps 15

Bosch Thermotechnology Corp. reserves the right to make changes without notice due to
continuing engineering and technological advances | BTC 432008101 C | 04.2012
Bosch Thermotechnology Corporation
Londonderry, NH • Ft. Lauderdale, FL • Irvine, CA
Tel: [phone] Fax: [phone] www.buderus.us
Engineering Submittal Sheet
GB162-80
Condensing Gas Boiler
3 of 6
Boiler Pressure Drop Curve
Approval Data
Approval description Approval number
Massachusetts Approval # G3-0809-45
CRN # 7990.7C
Burner Data
Unit Value
Allowable fuels – Natural gas, LP
Min Static Inlet Gas Pressure - NG Inch W.C. 7.0
Max Static Inlet Gas Pressure - NG Inch W.C. 10.5
Min Static Inlet Gas Pressure - LP Inch W.C. 8.0
Max Static Inlet Gas Pressure - LP Inch W.C. 13.0
2.2 4.4 6.6 8.8 11.0 13.2 15.4 17.6 19.8 22.0
10.04
8.37
6.67
5.04
3.35
1.68
0
GPM
100 kW
80 kW
Volume flow
Pressure drop Feet of Head
11.72
13.38
15.06
16.72

Bosch Thermotechnology Corp. reserves the right to make changes without notice due to
continuing engineering and technological advances | BTC 432008101 C | 04.2012
Bosch Thermotechnology Corporation
Londonderry, NH • Ft. Lauderdale, FL • Irvine, CA
Tel: [phone] Fax: [phone] www.buderus.us
Engineering Submittal Sheet
GB162-80
Condensing Gas Boiler
Boiler Dimensions and Connections with pump group
Boiler Dimensions / Connections Data
Item Description Unit Value
A Flue gas connection (inside diameter) Inch 4
B Air intake (inside diameter) Inch 4
C Wall bracket − −
D Supply shut off Inch −
E Return shut off Inch −
F Boiler gas connection Inch 1 FPT
G System supply connection Inch 2 MPT
H System return connection Inch 2 MPT
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Bosch Thermotechnology Corp. reserves the right to make changes without notice due to
continuing engineering and technological advances | BTC 432008101 C | 04.2012
Bosch Thermotechnology Corporation
Londonderry, NH • Ft. Lauderdale, FL • Irvine, CA
Tel: [phone] Fax: [phone] www.buderus.us
Engineering Submittal Sheet
GB162-80
Condensing Gas Boiler
5 of 6
Ref Description
1 Pressure relief valve
2 Supply water valve
3 Manual gas shutoff valve
4 Circulation pump
5 Gas inlet
6 Return water valve
7 Low loss header
Pump Group Overview
6
7
1
2
3
4
5
GB162
* Pump group cover not shown
Grundfos UP 26-99 F/BF Pressure Drop Curve
0 4 8 12 16 20 24 28 32 36
Q[GPM]
0
4
8
12
16
20
24
28
32
[ft]
H

Bosch Thermotechnology Corp. reserves the right to make changes without notice due to
continuing engineering and technological advances | BTC 432008101 C | 04.2012
Bosch Thermotechnology Corporation
Londonderry, NH • Ft. Lauderdale, FL • Irvine, CA
Tel: [phone] Fax: [phone] www.buderus.us
Engineering Submittal Sheet
GB162-80
Condensing Gas Boiler
Description Unit Minimum clearance
Wall clearance W1 Inch 0
Wall clearance W2 Inch 0
Wall clearance W3 Inch 37
Wall clearance W4 Inch 0
Top clearance W5 Inch 6
Boiler Clearances
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DISCLAIMER
Bosch Thermotechnology Corp. makes no warranty or representation, expressed or implied, with respect to the accuracy, completeness, or
usefulness of this information, nor assumes any liability with respect to the use of any information contained within this document.
W2
W4
W1
W2
W5
W1
W3
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