I Nt Roduct Ion; Requirem Ents For Com M Onwealth Of Massachusetts; Designated Use; The Unit Must Not - ECR International COMBI 115 Installation, Operation And Maintenance Manual

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 TED STATES
• 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 Safety
Devices for Aut om at ically Fired Boilers, ANSI / ASME CSD- 1.
Boiler int ernal low wat er device does not qualify for CSD- 1.
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
• 1 1 5 , 1 5 0 and 2 0 5 provide bot h cent ral heat ing and
dom est ic hot wat er.
• 7 5 , 1 0 0 ,1 2 5 and 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
2 - I N TROD U CTI ON
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 .6 The unit M UST N OT:
• Direct ly heat pot able wat er. I ndirect heat ing is
accept able.
• Heat water with non-hydronic heating system 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
• 7 5 Modulat es input t o provide CH Turndown 4.5: 1
• 1 0 0 Modulat es input t o provide CH Turndown 5.6: 1
• 1 1 5 Modulat es input t o provide CH Turndown 5.6: 1,
DHW Turndown 6.9: 1
• 1 2 5 Modulat es input t o provide CH Turndown 5.7: 1
• 1 5 0 Modulat es input t o provide CH Turndown 5.7: 1,
DHW Turndown 7: 1
• 1 6 5 Modulat es input t o provide CH Turndown 5.5: 1
• 2 0 5 Modulat es input t o provide CH Turndown 5.5: 1,
DHW t urndown 7: 1
M a x im um out put a va ila ble for dom est ic hot w a t er:
1 1 5 - 105,500 bt u/ hr ( 33.8 kW) capable of providing
2.5 ( U.S.) gpm ( 9.5 lit ers/ m in) wit h a t em perat ure rise
of 70° F/ 39° C.
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.
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. I f reading exceeds t his
figure larger expansion tank is required.
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240013687 REV A [ 09/ 01/ 2022]