2. DESCRIPTION AND OPERATION OF THE APPLIANCE
2.1. Purpose of the appliance
2.1.1. The
instantaneous
gas
water
heaters
for
domestic
use
«NEVA-4511», hereinafter referred to as “Appliances”, are produced according to the TU 4858-008-26985921-2008
(GOST R 51847-2009) standard and are designed for water heating for sanitary use (dish washing, laundry, taking a bath
or shower) in the apartments or individual dwelling houses.
2.1.2. The appliances are designed for operation on natural gas according to GOST 5542-87 standard or liquefied
gas according to GOST 20448-90 standards (the category of the appliances according to GOST R 51847-2009
–
II
2
Н+3B/P
). The appliance is output by the manufacturer company, being set up for a specific type of gas and gas pressure,
indicated on a tablet on the appliance and in the Acceptance certificate.
2.1.3. The appliances are designed for connection to the smoke exhauster for combustion products removal out of the
premise, they are equipped by the draught stabilizer and draught sensor, they have no ventilator in the combustion
products removal duct and by the air inlet (type of the appliances according to GOST R 51847-2009 standard
– В
11BS
).
2.2. Technical characteristics
Table 1. Technical characteristics
Parameters
«BaltGaz NEVA-4511»
2.2.1. Rated heating power, kWt
21
2.2.2. Rated heating effect, kWt
18
2.2.3. Performance index, %, not less than
84
2.2.4. Type of gas
Natural G20 / Liquefied G30
2.2.5. Family; gas group
2nd
; Н / 3rd; B/P
2.2.6.
Rated gas pressure, kPa (mm w.g.):
natural (G20, 2
nd
family, group
Н)
liquefied (G30, 3
rd
family, group
В/Р)
1,3 (130)
2,0 (200)
2,9 (300)
2.2.7.
Rated gas consumption:
natural, m
3
/h
liquefied, kg/h
2,2
1,66
2.2.8. Rated heating power of the ignition burner, kWt,
not more than
—
2.2.9. Specific water consumption D (
Т=30
С), l/min
9,2*
2.2.10. Maximum water pressure, kPa
1000
2.2.11. Minimal water consumption, l/min
2,5
2.2.12. Minimal water pressure, kPa
15
2.2.13. Water consumption at heating for
Т=40
С, l/min
7*
2.2.14. Water consumption at heating for
Т=25
С, l/min
11*
2.2.15. Required exhaustion in the smoke exhauster
,
Pa (mm w.g.),
Not less than
Not more than
1,96 (0,2)
29,4 (3,0)
2.2.16. Awerage combustion products temperature,
С
150
2.2.17. Mass consumption of combustion products of natural/liquefied
gas at rated heating power, g/s
7,4 / 8,0
2.2.18.
Type of ignition of the appliance
electronic
2.2.19. Overall dimensions of the appliance, mm:
height
×width×depth
565
×290×221
2.2.20. The appliance
’s weight, NET / GROSS, kg, not more than
10,0/11,0
2.2.21. Main burner
’s nozzles’ diameter, mm:
Natural gas, 1,3 kPa (130 mm w.g.)
Natural gas, 2,0 kPa (200 mm w.g.)
Liquefied gas, 2,9
kPa
(300
mm w.g
.)
1,28
1,14
0,79
2.2.22. Ignition burner
’s nozzles’ diameter, mm:
Natural gas
Liquefied gas
—
2.2.23. Type and voltage of batteries, V
LR20, 1,5 V
2.2.24. Incessant operation duration with one set of batteries, h
250*
2.2.25. Climatic category according to GOST 15150-69 standard
boreal climate 4.2
* The parameters are referential, for p.p. 2.2.9; 2.2.13; 2.2.14
– at water pressure not less than 250 kPa by the inlet
into the appliance being in operation, for p.2.2.24
– at usage of alkaline batteries with increased energy output ratio.
