Introduction; Technical Data; Performance - UTICA BOILERS MAC-150 Manuel D'installation, D'utilisation Et D'entretien

1.

INTRODUCTION

The Condensing boiler is a wall hung, fan assisted room-sealed combination boiler.
The boiler, providing both central heating and domestic hot water for the Utica Boiler MAC-150 model and only heating for the
Utica Boiler MAH - 125 model at street pressure, is designed for use with a fully pumped, sealed and pressurized heating
system. The boiler is supplied with a pump, diverter valve, pressure relief valve, and pressure gauge fully assembled and tested.
As supplied, the boiler will automatically modulate to provide central heating outputs between 19,108 and 112,601 Btu/h (5.6
and 33.0 kW).
The maximum output available for domestic hot water is 136,000 btu/h (40 kW), capable of providing 3.5 (U.S.) gpm (13.2 litres/
min) with a temperature rise of 70°F/39°C for the Utica Boiler MAC-150.
WARNING
It is the law that all gas appliances are installed by a competent person. It is in your own interest and that of safety to
ensure that the law is complied with.
• In the United States, the installation must conform to the requirements of the authority having jurisdiction or, in the absence of
such requirements, to the National Fuel Gas Code, ANSI Z223.1/NFPA 54. Where required by the authority having jurisdiction,
the installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME
CSD-1. Safe lighting and other performance criteria were met with the gas manifold and control assembly provided on the
boiler when the boiler underwent tests specified in ANSI Z21.13-latest edition.
• In Canada, the installation must conform with CGA B149.1 INSTALLATION CODE and/or local installation Code, plumbing or
waste water codes and other codes as applicable.
• Clearances from and protection of combustible material.
• Manufacturer's instructions must NOT be taken in anyway as over-riding statutory obligations.
2.

TECHNICAL DATA

2.1

PERFORMANCE

Input, MBH
Model
Number
Maximum
125
MAH-125
MAC-150
125
(1) 1000 Btu/hr (British Thermal Units Per Hour)
Heating Capacity and AFUE (Annual Fuel Utilization Efficiency) are based on DOE (Department of Energy) test
(2)
procedures.
(3) Net AHRI Ratings based on piping and pickup allowance of 1.15. Contact Technical Support before selecting
boiler for installations having unusual piping and pickup requirements, such as intermittent system operation,
extensive piping systems, etc.
* Max CH Supply temp 176° F (80°C) for MAC-125 and MAH-150
* Max DHW temp 140° F (60° C)
For elevations between 2000 ft (600M) and 4500 ft (1350m), use the following information:
Input, MBH (KW)
Model
Number
Maximum
MAH-125
113
MAC-150 113
* Max CH Supply temp 176° F (80° C) for MAH-125 and MAC-150
* Max DHW temp 140° F (60° C)
(1)
Heating
(1)(2)
Capacity, MBH *
Rating Water, MBH
Minimum
113
22
22
113
Heating
Capacity,
MBH*
Minimum
101
22
22
101
Net AHRI
(1)(3)
Max Input,
(2) AFUE%
95.0
98
95.0
98
Max Input,
MBH
AFUE, %
95.0
13
95.0
** Max DHW Flow rate 3.5 GPM (13.2 l/min)
6
Domestic Hot Water (DHW) Circuit**
Min Input, Max output,
MBH
MBH MBH
153
136
22
** Max DHW Flow rate 3.5 GPM (13.2 l/min)
Domestic Hot Water (DHW) Circuit**
Min Input,
Max output,
MBH MBH
22 12
240011317, Rev. F [03/31/2017]
Min Output,
MBH
19
Min Output,
MBH
19