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: 1-800-283-3787 Fax: 1-603-965-7581 www.buderus.us
GB162-80
Condensing Gas Boiler
1 of 6
Engineering Specifi cations
There shall be provided and installed a quantity of _____ Buderus
GB162/80 wall-hung condensing hot water boiler(s), suitable for induced
draft fi ring with natural gas or propane. Boiler(s) shall have an AFUE
effi ciency 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 fi ring 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
fi ring rate shall not exceed 180°F.
Standard equipment shall include a pump group assembly; Grundfos
UP26-99 circulator, integral fl ow 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
®

Buderus GB162-80 Specifications

General

Fuel Type	Natural Gas or Propane
AFUE	95%
Modulation Ratio	5:1
Ignition Type	Electronic Ignition
Vent Type	Direct Vent
Type	Condensing Boiler
Heat Exchanger Material	Aluminum
Heating Capacity	80, 000 BTU/hr
Efficiency	Up to 95% AFUE

Summary

Engineering Specifications

Boiler Construction and Efficiency

Details on Buderus GB162/80 wall-hung boiler, ALUplus heat exchanger, and 93.8% AFUE rating.

Certifications and Pressure Ratings

Boiler construction according to ASME Section IV, CSA approved, and 58psig max working pressure.

Operational Features

Modulating firing from 100% to 25% capacity, controlled by water temps or outdoor reset.

Standard Equipment and Controls

Includes pump group, shut-off valves, pressure gauge, and integrated controller for combustion functions.

Performance Data

Gas Input and Output Ratings

Specifies gas input, gross rated output, IBR rating, and boiler horsepower.

AFUE Efficiency

Provides the Annual Fuel Utilization Efficiency rating for the boiler.

General Data

Boiler Category and Materials

Identifies boiler as condensing type with aluminum heat exchanger construction.

Physical and Operational Limits

Details maximum working pressure, water content, weight, and operating temperatures.

Burner and Approval Data

Burner Inlet Gas Pressure

Specifies allowable fuels and minimum/maximum static inlet gas pressures for NG and LP.

Approval Information

Lists approval descriptions and numbers, including Massachusetts Approval and CRN.

Boiler Dimensions and Connections

Connection Ports

Details flue gas, air intake, system supply/return, and gas connection sizes and types.

Physical Layout

Provides front and side view diagrams with key dimensions and connection points.

Boiler Clearances

Minimum Clearance Requirements

Specifies minimum wall clearances (W1-W4) and top clearance (W5) for safe installation.