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2 - I nt roduct ion
2 .1
I nst allat ion shall conform t o requirem ent s of
aut horit y having j urisdict ion or in absence of such
requirem ent s:
U N I T ED ST AT ES
• Nat ional Fuel Gas Code, ANSI Z223.1/ NFPA 54
• Nat ional Elect rical Code, NFPA 70.
CAN AD A
• Nat ural Gas and Propane I nst allat ion Code, CAN/
CSA B149.1.
• Canadian Elect rical Code, Part I , Safet y St andard
for Elect rical I nst allat ions, CSA C22.1
2 . 2
Where required by aut horit y having j urisdict ion,
inst allat ion shall conform t o St andard for Cont rols and
Safet y Devices for Aut om at ically Fired Boilers, ANSI /
ASME CSD-1. Boiler internal low water cutoff device
does not qualify for CSD1
Additional manual reset low water cutoff may be
required.
2 .3 Requirem ent s for Com m onw ea lt h of
M a ssa chuset t s:
Boiler inst allat ion m ust conform t o Com m onwealt h of
Massachuset t s code 248 CMR which includes but is not
lim it ed t o:
Installation by licensed plumber or gas fitter.
2 .4 M a nufa ct urer recom m ends use of Ca rbon
M onox ide m onit or m a y be requirem ent of loca l
j urisdict ion.
2 .5 Designa t ed Use
• M ACF- 1 1 5 , M ACF- 1 5 0 and M ACF- 2 0 5 provide
bot h cent ral heat ing and dom est ic hot wat er.
• M AH F- 7 5 M AH F- 1 0 0 , M AH F- 1 2 5 and
M AH F- 1 6 5 cent ral heat ing only.
• I ndoor inst allat ion.
• Closet or alcove inst allat ion. Direct Vent Boiler
does not require air vent s when inst alled in closet
or room .
• Direct vent boiler.
• For use with natural gas or liquefied petroleum
gases ( LP/ propane) .
Check our website frequently for updates: www.ecrinternational.com
Information and specifications outlined in this manual in effect at the
t im e of pr in t in g of t h is m a n u a l. ECR I n t e r n a t ion a l r e se r ve s t h e r igh t t o
discontinue, change specifications or system design at any time without
n ot ice a n d w it h ou t in cu r r in g a n y obliga t ion , w h a t soe ve r .
2 - I N TROD U CTI ON
2 .6 The unit M UST N OT:
• Direct ly heat pot able wat er. I ndirect heat ing is
accept able.
• Heat wat er wit h non- hydronic heat ing syst em
chem icals present ( exam ple, swim m ing pool
wat er) .
.
• Toxic chem icals, such as t hose used for boiler
t reat m ent , shall not be int roduced int o pot able
wat er.
• Exceed 43 psig ( 2.96 bar) m axim um syst em
pressure, or drop below m inim um syst em
pressure 7.25 psig ( .50 bar)
• Exceed 176° F ( 80° C) syst em design t em perat ure.
2 .7 Opera t iona l Fea t ures
• M AH F - 7 5 Modulat es input t o provide CH
Turndown 4.5: 1.
• M AH F - 1 0 0 Modulat es input t o provide CH
Turndown 5.6: 1
• M ACF- 1 1 5 Modulat es input t o provide CH
Turndown 5.6: 1, DHW Turndown 6.9: 1
• M AH F- 1 2 5 Modulat es input t o provide CH
Turndown 5.7: 1
• M ACF- 1 5 0 Modulat es input t o provide CH
Turndown 5.7: 1, DHW Turndown 7: 1
• M AH F- 1 6 5 Modulat es input t o provide CH
Turndown 5.5: 1
• M ACF- 2 0 5 Modulat es input t o provide CH
Turndown 5.5: 1, DHW t urndown 7: 1
• Maxim um out put available for dom est ic hot
wat er:
M ACF- 1 1 5 - 105,500 bt u/ hr ( 33.8 kW) capable of
providing 2.5 ( U.S.) gpm ( 11.4 lit ers/ m in) wit h a
t em perat ure rise of 70° F/ 39° C.
M ACF- 1 5 0 - 136,000 bt u/ h ( 40 kW) , capable of
providing 3.5 ( U.S.) gpm ( 13.2 lit ers/ m in) wit h a
t em perat ure rise of 70° F/ 39° C.
M ACF- 2 0 5 - 180,000 bt u/ h ( 53 kW) , capable of
providing 5.0 ( U.S.) gpm ( 18.9 lit ers/ m in) wit h
t em perat ure rise of 70° F/ 39° C.
• Integral Low Water Pressure Cutoff.
• Opt ional Out door Tem perat ure Reset .
• Heat exchanger over heat prot ect ion.
• Boiler operat ing at m axim um operat ing
t em perat ure, providing heat , pressure gauge
should not indicat e m ore t han 26.11 psi /
1.80 bar. If reading exceeds this figure larger
expansion t ank is required.
8
240013503 REV A, [ 03/ 15/ 2022]
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