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7.8. Battery installation into the appliance «BaltGaz NEVA-4511»
Batteries of the dimension-type D (2 pcs. of 1,5 V voltage) are installed into the battery section 14 (see scheme 14) in
accordance with polarity, indicated on the internal side of the section's coverplate. In order to open the battery section's
coverplate it is necessary to turn the coverplate's knob into the position «ОN». It is recommended to install alkaline
batteries of the type LR20, of increased energy output ratio and providing longer operation time of the appliance. After
installing the batteries it is necessary to close the section's coverplate and turn the coverplate's knob to the position
«ОFF».
7.9. Checking the appliance
7.9.1.
After installing the appliance and airtightness check the main burner's operation (p. 4.1.3), safety authomatic
system (p.8.4.6. for «BaltGaz NEVA-4511») and water heating temperature. Switching the appliance on and off and water
temperature regulation must be effectuated in accordance with section 3. Checking the thermorelay's (draught sensor's)
working capacity must be effectuated in accordance with p. 12.3.5.
Note. After the appliance's storage in a premise with subzero temperature its initial run must be effectuated not
earlier than in 1,5 h after its transportation to a warm premise.
7.9.2. If necessary (in case of unsufficient water heating) gas pressure at the inlet into the appliance should be
checked, for this it is necessary to:
a) Close the gas inlet tap by the inlet into the appliance;
b)
To screw out the screw from the tap 21 (scheme 14) and connect a differential pressure gauge to the tap;
Open the gas tap by the inlet into the appliance and check the differential pressure gauge's connection for
c)
airtightness;
d)
Switch the appliance on and set the maximum heating power mode;
e)
Define the gas pressure according to the differential pressure gauge, that must correspond with the pressure
indicated in the Acceptance certificate
After making measurements it is necessary to:
a) Switch the appliance off and close the gas tap by the inlet into the appliance;
b)
Switch the differential pressure gauge off and screw up the screw in the tap up to the stop;
c)
Open the gas tap by the inlet into the appliance and check the tap for airtightness.
7.10. Rendering the appliance to another type and pressure of gas
7.10.1. Resetting the appliance to another type and pressure of gas must be effectuated by a specialized
service organization. For the appliance's resetting it is necessary to use only the branded set of details.
.
7.10.2
In order to reset the appliance to another type and pressure of gas it is necessary to replace the nozzles of
the main burner for the nozzles with orifice diameter in accordance with table 1 for the type and pressure of gas on which
the appliance will work.
Before effecting the resetting it is necessary to switch the appliance off and close the gas stop valve.
7.10.3. After the resetting it is necessary to check the joints airtightness (see p. 7.4.5).
7.10.4. Gas type and pressure, to which the appliance was reset , must be indicated in the Acceptance certificate (
indicating the organization that effectuated the resetting, and the date) and on the table on the appliance.
8. CONSTRUCTION AND OPERATION CONTROL OF THE APPLIANCE
8.1. Construction of the appliance «BaltGaz NEVA-4511»
8.3.1. The wall-hung appliance «BaltGaz NEVA-4511» (scheme 2) has a rectangular form, formed by the removable
casing имеет 4. On the front side of the casing the following items are located: water consumption regulation knob 1, gas
consumption regulation knob 2, water temperature display 3 и glory-hole 5 for watching the burner's flame. All main ele-
ments of the appliance are mounted on the rear wall 22 (scheme5).
8.3.2. Purpose of the main blocks and spare parts of the appliance «BaltGaz NEVA-4511» (scheme 14):
Water and gas block 4 is designed for regulating gas supply to the burner, regulating water and gas consumption
and consists of water and gas blocks (the block's construction provides gas supply to the burner only in case of
water flow);
burner 5 is designed for creating of air and gas mixture and its supply to the combustion place;
gas removal device 9 is designed for combustion products outlet to the smoke exhauster;
ignition plug 10 is designed for creating an electric spark for the burner's ignition;
flame sensor 11 provides the burner operation control;
heat exchanger 12 provides transfer of the heat received at gas combustion to the water flowing in its pipes;
thermorelay 16 (draught sensor) is designed for switching off the appliance in case of no draught in the smoke
exhauster or if the exhaustion in it is less than 1,96 Pa. The tremorelay has normally-closed contacts with dis-
junction temperature 90 С;
the water temperature sensor 18 is designed for defining water temperature at the outlet from the appliance;
thermorelay 19 (water overheating sensor) is designed for switching the applianceа off at water heating for more
than 90 °С;
plug 20 is designed for water drain from the DHW circuit of the appliance in order to prevent its freezing; a safety
valve inserted into the plug is designed for protection of DHW circuit of the appliance from increased
sure.
water pres-
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