Boilers of indirect heating with an internal tank OMB KOMBI

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Manufacturer: OMB (Italy)
Container material: carbon steel, enamel coated carbon steel
Maximum working temperature: 100(° C)
Designation of tanks: heating systems, hot water systems, collector role
Heat exchanger material: carbon steel

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Application	Combined system for heating water in a tank, using energy from various sources. traditional and alternative, using heat exchangers inside the tank. The tank also acts as a collector. From the collector, hot water enters all heating systems: hotter water is from the top of the tank, and less hot water is used for underfloor heating systems from the bottom of the tank. The hot potable water heating system consists of a buffer tank.
Execution	Made of high quality S235JR EN10025 carbon steel, assembled and welded by automatic welding. Non-removable spiral heat exchangers made of S235JR EN10025 carbon steel welded to the tank. KOMBI enamelled steel water heating tank (EMAIL) without heat exchangers. KOMBI-S enamelled steel water heating tank (EMAIL) with one spiral heat exchanger. KOMBI-SS enamelled steel water heating tank (EMAIL) with two spiral heat exchangers
Anti-corrosion coating	Internal anti-corrosion coating (enamel) obtained by high temperature treatment in an oven at 860 ° C. Fully complies with the requirements for drinking water according to DM 174/2004 (Italian standards) and the CEE directive 76/893.
Cathodic protection	Threaded magnesium anode.
Insulation and type of outer cover	For mod. with a capacity of 220 to 600 liters - rigid polyurethane insulation, and for the rest - flexible polyurethane insulation, PVC outer cover with zipper and thermal cover.
Certificates	Complies with directive 97/23 / CE Art. 3 - Part 3.

Model			220/100	330/150	600/100	600/180	800/180	800/300	1000/180	1000/300	1500/300	2000/300
	Tank capacity	l	220	330	575	575	796	796	900	900	1462	1996
	Actual tank capacity	l	120	150	472	347	621	501	743	605	1167	1605
	The actual capacity of the potable water heating tank	l	100	100	100	175	175	295	175	295	295	295
D	External tank diameter (insulated)	mm	600	600	750	750	990	990	990	990	1150	1300
d	External tank diameter (without insulation)	mm	500	500	650	650	790	790	790	790	790	1100
HT	Height	mm	1385	1860	1910	1910	1805	1805	2105	2105	2320	2390
	Heating area of the bottom spiral heat exchanger	m ²	1.4	2.0	2.4	2.4	2.6	2.6	3.0	3.0	4.1	4.5
	Heating area of the upper spiral heat exchanger	m ²	-	-	2.0	-	3.0	-	3.0	-	4.5	4.5
	Tank weight mod. KOMBI	Kg	85	110	140	150	180	200	220	240	270	330
	Tank weight mod. KOMBI-S	Kg	95	120	150	160	210	230	250	270	300	330
	Tank weight mod. KOMBI-SS	Kg	-	-	190	-	230	-	270	-	340	390
	Tank connections
M	Connections to external sources		G1 "¼	G1 "¼	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½
RE	Connection for additional electric heating element		G1 "½	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½	G1 "½
Sf	Air valve		G½ "	G½ "	G½ "	G½ "	G½ "	G½ "	G½ "	G½ "	G½ "	G½ "
S1-S2	Inlet-outlet of the lower spiral heat exchanger		G¾ "M	G¾ "M	G¾ "M	G¾ "M	G¾ "M	G¾ "M	G¾ "M	G¾ "M	G1 "¼	G1 "¼
S3-S4	Upper spiral heat exchanger connections		-	-	G1 "	G1 "	G1 "	G1 "	G1 "	G1 "	G1 "¼	G1 "¼
	Hot water tank connections
ES	Cold water inlet		G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "
US	Hot water outlet		G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "
RC	Recirculation		-	-	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "	G¾ "
A	Magnesium anode		G1 "¼	G1 "¼	G1 "¼	G1 "¼	G1 "¼	G1 "¼	G1 "¼	G1 "¼	G1 "¼	G1 "¼
RE	Electric heating element		G1 "¼	G1 "¼	-	-	-	-	-	-	-	-
	Technical details
PE	Maximum working pressure of the heated circuit (DHW)	bar	6	6	6	6	6	6	6	6	6	6
PC	Heating circuit test pressure (DHW)	bar	nine	nine	nine	nine	nine	nine	nine	nine	nine	nine
TE	Max. working temperature	° C	100	100	100	100	100	100	100	100	100	100
PST	Maximum working pressure of the tank	bar	3	3	3	3	3	3	3	3	3	3
PSC	Tank test pressure	bar	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5

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Boilers of indirect heating with an internal tank OMB KOMBI

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