Remeha P320 Installation and Service Manual

0 (0)

Remeha

Fuel oil/gas boilers

P 320

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.

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.

Symbols used

	Caution danger	Risk of injury and damage to equipment. Attention must be paid to the
	Caution danger	warnings on safety of persons and equipment
	Specific information	Information must be kept in mind to maintain comfort

Z	Reference	Refer to another manual or other pages in this instruction manual

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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.

20/09/2011 - 300016243-001-D

P 320

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		∆ T = 15K (1)	mbar	6.2	10.9	20.4	30	44.5	63.8
Pressure in the furnace for			mbar	+0.3	+0.6	+1.1	+1.6	+2.2	+2.5
nozzle pressure = 0			mbar	+0.3	+0.6	+1.1	+1.6	+2.2	+2.5
Flue gas temperature (1) (3)			°C	< 210	< 210	< 210	< 210	< 210	< 210
Mass flue gas flow rate (1)		Fuel oil	Kg/h	178	238	306	391	475	560
Mass flue gas flow rate (1)		Gas	Kg/h	187	250	321	410	499	588
		Gas	Kg/h	187	250	321	410	499	588
		Inscribed diameter	mm	377	377	377	377	377	377
Combustion chamber		Depth	mm	621	781	941	1101	1261	1369
		Volume	m3	0.096	0.122	0.148	0.174	0.200	0.226
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.

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2.2 Main dimensions

























(a) Rp 1 1/2 socket for the safety control unit								(d) 2 1/2 heating return (flange + counter flange)
(b) 2 1/2 heating outlet (flange + counter flange)								(e) Rp 1 1/2 draining outlet (supplied with plug)
(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

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Remeha P320 Installation and Service Manual

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.

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.

4 Mounting

ZFor mounting instructions, see installation instructions.

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