Burnham ALTAC Series Combi Gas Boiler Owner’s Manual

: June 3, 2024
: Burnham

Table of Contents

Burnham ALTAC Series Combi Gas Boiler
UNMATCHED SIMPLICITY
NEXT-GENERATION ADAPTIVE COMBUSTION
HIGH-PERFORMANCE COMBI MODELS
Overview Component
Technical Information
Ratings & Specifications
Accessories
Typical Venting Configurations
References
Read User Manual Online (PDF format)
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Burnham ALTAC Series Combi Gas Boiler

Burnham-ALTAC-Series-Combi-Gas-Boiler-product

UNMATCHED SIMPLICITY

No-touch combustion setup, engineered for a five-minute start-up
Self-diagnostic boiler control
Rate-based temperature reset, no outdoor sensor required –assesses environmental conditions, continually adjusting boiler operation for comfort and efficiency and long boiler life
Three-side unobstructed service access – fast removal of front and side panels
Simple 2-step natural gas-to-LP conversion with no kits or additional parts required
Easy lift, wall hanging design (floor stand optional)
Alta FastPipe (primary/secondary piping) included on combi models

NEXT-GENERATION ADAPTIVE COMBUSTION

Continuous high-efficiency combustion without manual throttle or offset adjustments
Low gas pressure capability (2.5 in. wc gas, 8.0 in. wc LP)
Automatic self-calibration adjusts to variables in the environment, component wear, gas & vent pressure

HIGH-PERFORMANCE COMBI MODELS

The world’s first 10:1, gas adaptive combi boiler – conserves fuel and extends boiler life
Virtually instantaneous DHW response time
Selectable economy or comfort/recirculation modes
DHW temperature maintained under all demand conditions
Integrated DHW hydro block with quick-disconnect flat plate DHW heat exchanger, boiler circulator, 3-way valve, and instantaneous DHW flow sensor

INDUSTRY-LEADING VALUE

5-year parts warranty, 12-year limited warranty on heat exchanger
Universal vent connection for CPVC, polypropylene
Boiler flow safety switch (UL353)
95% AFUE

Overview Component

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Alta heating-only models (service view)

Near Boiler Piping
AltaFastPipe (primary/secondary header) is included with Alta combi boilers. This single-piece copper component includes a temperature/pressure gauge and 1-1/4” supply/return connections.

Technical Information

Standard Equipment – All Models

Direct vent, high turndown, sealed combustion appliance
Altitude capability to 10,100 ft. (“G00” suffix)
Stainless steel 316L heat exchanger, corrosion resistant
Alta Control System
- Automatic “no-touch” combustion management
- Built-in self-diagnostics
- 2 inputs (T-stat, DHW)
- Warm weather shutdown
- Two-step LP conversion at gas valve switch and display – no kit purchase required
- Sensor-less, rate-based reset
- Fuse-protected, spare fuses provided
- Separated high and low-voltage connections
Boiler flow safety switch (UL353)
Low gas pressure capability;
Min: 2.5 in. WC (nat gas), 8.0 in. wc (LP gas)
Three-side, unobstructed service access jacket
Vent connection for CPVC/PVC, polypropylene
Pre-installed hanging bracket and wall mount kit
Circulator
- Grundfos 26-99 (heating-only models)
- Grundfos UPS-78 Special (combi models)

Combi Models

Integrated hydro block system with flat plate heat exchanger, boiler circulator, and 3-way valve
AltaFastPipe (pre-made primary/secondary manifold)

Ratings & Specifications

Model

|

AFUE

%

| Heating Input (MBH)

min- max

| DOE

Heating Capacity (MBH)

|

Net AHRI (MBH)

| DHW Rates|

Vent Size (In.)

|

Boiler Wt. (lbs.)

at 70° TR (GPM)| at 77° TR (GPM)| Input (MBH)

min- max

ALTAC-136| 95.0| 13.6-120| 112| 97| 3.7| 3.4| 13.6-136| 2| 95
ALTAC-200| 95.0| 20-150| 141| 123| 5.2| 4.7| 20.0-200| 2| 116
ALTA-120| 95.0| 13.6-120| 112| 97| —| —| —| 2| 76
ALTA-150| 95.0| 20-150| 141| 123| —| —| —| 2| 103
ALTA-180| 95.0| 20-180| 169| 147| —| —| —| 2| 103

Net AHRI Water Ratings shown are based on a piping and pickup allowance of 1.15. The manufacturer should be consulted before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent operation, extensive piping systems, etc.

Safety Relief Valve Pressure, Water – 30 PSI std. ASME certified “H”. Maximum Allowable Working Pressure at 50 PSI. Max allowable temperature setting 210ºF. The target setpoint is 180°F, manual reset high limit setpoint is 210°F. Boilers shipped set for natural gas. Boiler SKUs with the “G00” suffix may be installed and set for altitudes up to 10,100 ft.

Boiler Depth

Boiler Depth

Model

| “A”

(Inches)

$Burnham-ALTAC-Series-Combi-Gas-Boiler-fig- $6$$

Accessories

Floor stand kit (P/N: 111576-01)
Service part kit (P/N 111419-01)
Kit, CPVC starter and PVC vent terminations: (2” P/N: 107039-01)
LP altitude electrode – ALTA-150, 180, 200 only: (P/N 111745-01)

Typical Venting Configurations

(Horizontal and Vertical)
Illustrations are for representation only. For complete venting information, please see Installation, Operating and Service Instructions. $Burnham-ALTAC- Series-Combi-Gas-Boiler-fig- $7$$