Remeha P320 Installation and Service Manual
Remeha
Fuel oil/gas boilers
P 320
EN
Installation and
Service Manual
300016243-001-D
63184
Declaration of conformity 1
The appliance complies with the standard model described in
declaration of compliance 1. It is manufactured and distributed
pursuant to the requirements of european directives. The original of
the declaration of compliance is available from the manufacturer.
C001879-B
2
P 320 20/09/2011 - 300016243-001-D
Contents
1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2 Main dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3 Installing the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1 Boiler location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.2 Ventilation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5.1 Important recommendations on connecting the heating circuit to the boiler and the drinking water system . . . . . . . . . . . . . . . . . . 10
5.2 Important recommendations for connecting the boiler to the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.3 Filling the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
5.4 Sludge removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
6 Chimney connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6.1 Flue size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6.2 Chimney connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7 Fuel-oil or gas connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
8 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
9 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
9.1 Sweeping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
9.2 Cleaning the casing material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
9.3 Precautions required in the case of long boiler stops (one or more years) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
9.4 Precautions required if the heating is stopped when there is a risk of freezing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
10 Burner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
11 System maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
11.1 Water level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
11.2 Draining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
13 Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
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1 General
This product will be marketed in the following European Union
member states:
NL - BE - ES - GB - HU - SE
with a gas or oil-burner of the associated category.
Directive 97/23/EC
Gas and oil boilers with a maximum operating temperature of 110°C
and hot water tanks with a maximum operating pressure of 10 bar
pertain to article 3.3 of the directive, and therefore, cannot be CEmarked to certify compliance with the directive 97/23 EC.
Symbols used
Caution danger
Specific information Information must be kept in mind to maintain comfort
Reference Refer to another manual or other pages in this instruction manual
Z
The boilers and hot water tanks are designed and manufactured in
accordance with the sound engineering practice, as requested in
article 3.3 of the directive 97/23/EC, it is certified by compliance with
the directives 90/396/EC, 92/42/EC, 2006/95/EC and 2004/108/EC.
Warning
The boiler shall be assembled and installed by a qualified
professional only.
For a proper operating of the boiler, follow carefully the instructions.
Risk of injury and damage to equipment. Attention must be paid to the
warnings on safety of persons and equipment
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2 Description
The boilers of the P 320 range are pressurised hot water boilers
designed for connecting to a flue pipe which require a separate
automatic fuel-oil or gas burner.
The useful power of P 320 boilers is between 55 and 280 kW.
Models available
Boiler with control panel, which may be fitted with an optional
Rematic 2945 C3K control unit for heating only or heating and
domestic hot water production.
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2.1 Technical specifications
Maximum operating pressure: 6 bar
Safety thermostat setting: 110 °C
Boiler thermostat setting: 30 to 90°C
Boiler P 320-4 P 320-5 P 320-6 P 320-7 P 320-8 P 320-9
Useful output kW 70-105 105-140 140-180 180-230 230-280 280-330
Power input kW 76-117 115-156 153-199 197-253 252-309 305-361
Number of sections 4 5 6 7 8 9
Water content l 96 116 136 156 176 196
Water resistance
Pressure in the furnace for
nozzle pressure = 0
Flue gas temperature
Mass flue gas flow rate
Combustion chamber
Maintenance consumption by 50°C % 0.17 0.14 0.13 0.11 0.10 0.09
Shipping weight kg 610 739 845 980 1101 1228
(1)
Nominal operation (top boiler power)
(2)
CO2 = 13.1 to 13% with fuel oil and 9.5% with natural gas.
(3)
Boiler temperature: 80 °C, Ambient temperature: 20 °C
1 mbar = 10 mmWG = 10 daPa
In order for the boiler to operate correctly, it is imperative
to respect the draught at the nozzle: 0 at the nozzle.
∆ T = 15K
(1) (3)
Fuel oil Kg/h 178 238 306 391 475 560
(1)
Gas Kg/h 187 250 321 410 499 588
Inscribed diameter mm 377 377 377 377 377 377
Depth mm 621 781 941 1101 1261 1369
Volume
(1)
mbar 6.2 10.9 20.4 30 44.5 63.8
mbar +0.3 +0.6 +1.1 +1.6 +2.2 +2.5
°C < 210 < 210 < 210 < 210 < 210 < 210
3
0.096 0.122 0.148 0.174 0.200 0.226
m
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2.2 Main dimensions
(a) Rp 1 1/2 socket for the safety control unit
(b) 2 1/2 heating outlet (flange + counter flange)
(c) Sludge removal hole Ø Rp 2 1/2
P 320-4 P 320-5 P 320-6 P 320-7 P 320-8 P 320-9
L (mm) 991 1151 1311 1471 1631 1791
P (mm) 490 650 810 970 1130 1290
R (mm) 180 180 180 200 200 200
(d) 2 1/2 heating return (flange + counter flange)
(e) Rp 1 1/2 draining outlet (supplied with plug)
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3 Installing the boiler
3.1 Boiler location
The P320 boiler does not require a special base for its assembly.
Their closed furnace system means that the floor need not have
refractory properties. All you have to ensure is that the floor can
support the weight of the boiler when it is fitted for operation. If the
boiler location is not determined precisely, leave enough space
around the boiler to facilitate monitoring and maintenance
operations.
Boiler P 320-4 P 320-5 P 320-6 P 320-7 P 320-8 P 320-9
A 838 998 1158 1318 1478 1638
Pay attention to the overall volume of the burner when the
door is open. To install several boilers in cascade, these
dimensions should be adapted accordingly.
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3.2 Ventilation
The location of air inlets in relation to the high ventilation openings
shall ensure that the air is renewed in the entire volume of the boiler
room.
It is in any case imperative to conform to the local regulations in force.
4 Mounting
Caution:
In order to avoid damage to the boiler, it is necessary to prevent the
contamination of combustion air by chlorine and/or fluoride
compounds, which are particularly corrosive.
These compounds are present, for example, in aerosol sprays,
paints, solvents, cleaning products, washing products, detergents,
glues, snow clearing salts, etc.
Therefore:
• Do not pull in air evacuated from premises using such products:
hairdressing salons, dry cleaners, industrial premises (solvents),
premises containing refrigeration systems (risk of refrigerant
leakage), etc.
• Do not stock such products close to the boilers.
If the boiler and/or peripheral equipment are corroded by such
chloride or fluoride compounds, the contractual guarantee
cannot be applied.
For mounting instructions, see installation instructions.
Z
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