Ravenheat HE 25 S COMPACT, HE 30 S COMPACT Instructions For Use Installation And Servicing

Technical and illustrative data are not binding and can be modiﬁ ed without prior notice. The descriptions and illustrations in the present booklet are for guidance purposes only.

RAVENHEAT MANUFACTURING LTD CHARTISTS WAY, MORLEY, LEEDS, U.K. LS27 9ET TEL.: 0113 252 7007 - FAX: 0113 238 0229

Website: www.ravenheat.co.uk - E-mail: sales@ravenheat.co.uk

Instructions for Use

Installation and Servicing

To be left with the user

HE 25 S COMPACT

Natural Gas (G20) II

2H3P

LPG (G31) II

2H3P

HE 30 S COMPACT

Natural Gas (G20) II

2H3P

LPG (G31) II

2H3P

1312

HIGH EFFICIENCY

CONDENSING

COMBINATION BOILER

2

3

HIGH

EFFICIENCY CONDENSING BOILER

FOR CENTRAL HEATING AND DOMESTIC HOT WATER

This new highly eﬃ cient turbo-modulating boiler is designed to meet domestic hot water and central heating requirements at super high eﬃ ciency.

POSITION

The appliance is extremely versatile as it can be ﬁ tted in almost any room. The appliance is room sealed so there is no contact

between the combustion chamber and living accommodation. This guarantees maximum safety and eﬃ ciency. Each boiler has been designed and manufactured in our modern plant to exacting ISO 9001 discipline, all boilers carry full CE marking of approval. Technical sales and commercial services are available throughout the UK Mainland. This product is guaranteed by Ravenheat manufacturing ltd, Chartists Way, Morley, LEEDS, LS27 9ET. Telephone No (0113) 252 7007.

Guarantee is a full 12 months from date of purchase providing the appliance has been ﬁ tted in accordance with these instructions

and relevant codes of practice.

- Modulating

gas valve.

- Modulating pump head suitable for any type of central heating system.

- Burner with ﬂ ame stabiliser designed to operate under all thermal conditions.

- Unique condensing heat exchanger for high thermal ﬂ ue transfer from gases to water.

- Stainless steel plate heat exchanger for super high heat transfer to domestic hot water supply.

- Built in frost protection.

- Printed circuit board designed to connect to room stat and/or timer.

- Aesthetically pleasing panels and controls.

- On/Oﬀ ball valves for shutting oﬀ gas, central heating and domestic hot water circuit.

- Safety relief valve (for safety discharge).

- Programmable 7 day module with digital display (time clock version only).

NOTE: Due to the high eﬃ ciency of this boiler a plume of water vapour will form at the ﬂ ue

terminal during operation.

COSHH - CONTROL OF SUBSTANCES

HAZARDOUS TO HEALTH

IMPORTANT

It is the Users/Installers responsibility to ensure that the necessary personal protective clothing is worn when handling this appliance, and where applicable the pertinent parts that contain any materials that could be interpreted as being injurious to health and safety.

GENERAL INFORMATION: GLUES AND SEALANTS - exercise caution - if these are still in liquid form. RAVENHEAT use only high quality material for production of this product, in an eﬀ ort to protect the environment wherever possible components should be recycled.

WARNING: when installing the appliance, care should be taken to avoid any possibility of injury when handling sheet metal parts.

MAJOR COMPONENTS

4

5

6

It is the law that all gas appliances are installed by a competent person, in accordance with the gas safety installation and to the current Gas Safety (Installation and Use) Regulations B.S.5440:2-(2009).

All registered installers carry a Gas Safe Register ID card and have a registration number. Both should be recorded in your boiler Log book. You can check your installer’s registration at www.gassaferegister.co.uk.

ESCAPE OF GAS

Should a gas leak be suspected, contact your gas supplier without delay.

GAS EMERGENCY NUMBER: 0800111999

Do NOT search for gas leaks with a naked ﬂ ame.

WARNING: This appliance must be earthed.

1.1 INTRODUCTION

Please carefully read the information given in this booklet to help you gain maximum control from your appliance with minimum trouble and cost.

Your Ravenheat Condensing Low Nox combination boiler has been designed to supply your Central Heating and Domestic Hot Water directly from one unit. When Central Heating is operating, the circulation will be interrupted when Domestic Hot Water is being drawn oﬀ (domestic hot water has priority). This will normally not aﬀ ect the level of Heating.

PLEASE NOTE:

Due to the high eﬃ ciency of this appliance and resulting

low ﬂ ue gas exhaust temperature a white plume of condensation vapour (cool steam) will be emitted from the ﬂ ue outlet terminal, this is quite normal. It will be particularly evident during periods of low outdoor temperature or when the boiler is working at its optimum performance (Plume Management kits are available on request).

IMPORTANT: In the unlikely event of the exhaust ﬂ ue gases exceeding

the overheat temperature setting, the boiler operation will be stopped to prevent damage to the appliance.

1.2 CLEARANCES AROUND THE APPLIANCE

Side clearance:

The position of the appliance must provide a minimum clearance of only 5 mm as the side panels do not require removing for servicing.

However, if the option is preferred to remove the panels then a minimum clearance of 55 mm is required.

Top clearance:

The top clearance should be a minimum of 125 mm.

Bottom clearance: A minimum bottom clearance of 80 mm is

required between the appliance and any surface, though 150 mm is preferred whenever possible.

Front clearance: A minimum of 450 mm is required in front of the appliance for access during servicing, the front clearance can be reduced when installed in a cupboard to 25 mm from the access door.

USER CONTROLS

This appliance is designed to operate with the minimum of ease for the user. All the controls are found on the control panel on the front of the boiler.

1.3 OPERATING SAFETY CHECKS TO PROTECT YOUR APPLIANCE (CHECKING THE SYSTEM PRESSURE)

Before lighting the appliance check that the Central Heating system pressure is not less than 1 bar. If it is below this it will be necessary to re-pressurise the system, between 1 and 1.5 bar to allow the boiler to operate. To view the system pressure press the INFO button once, this will display the current pressure (if the

pressure is on nil or too low, then error code 08E is displayed).

A ﬁ lling device (ﬁ lling loop) will have been ﬁ tted on the system. This is usually on the pipework near to the boiler. If you are unsure of its position, or you cannot identify it, consult the installer who ﬁ tted the boiler. The ﬁ lling loop usually consists of two taps and a separate silver coloured braided ﬂ exible pipe with connection ﬁ ttings. Only when re-pressurising should the braided ﬂ exible pipe be connected between the two taps, ensure that the nuts or the pipe ends are tightened onto the taps. Fully open one of the taps ﬁ rst and then while monitoring the water pressure on the digital display, carefully open the second tap. When the water pressure is to a maximum of 1.5 bar turn both taps oﬀ . Disconnect the ﬂ exible pipe from the taps (a small amount of water may be present). Keep the pipe in a safe place for future use. Press the ESC button once to return to the main screen.

In the event of an error, the appliance will show a sequence code displayed on the digital display of the control panel (ﬁ g. 1). By pressing the “RESET“ button it is possible to relight the boiler (see page 52 and 53 for list of error codes).

1 USERS GUIDE

7

1.4 APPLIANCE STATUS INDICATORS

The boiler is equipped with a large LCD display that indicates the appliance operating status ﬁ g. 1).

Fig. 1

KEY:

1 - ON/OFF button. Press to turn the boiler ON, summer mode (hot water symbol only), winter mode (hot water and radiator symbol), and OFF. Press the button also to conﬁ rm selections.

2 - Press to RESET the appliance if ever an error code is displayed or ESC to back-up from the boiler menus.

3/4 - Temperature and function mode selectors. Press the arrow up or the arrow down to increase or decrease the heating or domestic hot water outlet temperature, when the digital display is in hot water or central heating set-point temperature. Press also to show the boiler values or to show the options program when the digital display is in INFO or in USER PARAMETERS.

5 - Press to set the Central Heating

Temperature required Press once to view the central heating

temperature set-point (boiler must be in winter mode). Press the arrow up or the arrow down buttons to increase or decrease the temperature.

5 - Press to set the Domestic Hot Water

Temperature required. Press twice (once if in summer mode)

to see the domestic hot water temperature set-point. Press the arrow up or the arrow down buttons to increase or decrease the temperature.

6 - INFO: press to show the boiler values.

- water pressure

- ﬂ ow temperature (CHF).

- return temperature (CHR).

- domestic hot water temperature (DHW).

- % power of modulation.

- fan speed (FAN), the display show 2 digits (e.g. 20 = 2000 rpm).

- external temperature, if the external probe is present (OTC).

- error history.

Press ESC to esc INFO mode.

- USER PARAMETERS (for service people): press the INFO and the arrow down buttons together for 5 seconds to show the boiler parameters (buttons 4 and 6).

- P001: C.H. max fan speed.

- P002: D.H.W. max fan speed.

- P003: Keep hot “0” disabled and “1” enabled

- P004: C.H. High/Low temperature: “0” low (max 50°C) / “1” high (max80°C)

- P005: Climatic curve: default “20” (full instructions are provided with the Outdoor Sensor Kit).

- P006: Enable locking pump “0” disable / “1” enable.

- P007: Test mode: “0” disabled, “1” enable. (the function is enable for maximum 15 minutes). Press ESC to esc Test mode.

- P008: Weather compensator control. 0= Normal remote control. 1= Ravenheat remote control with D.H.W. selection in boiler. 2= Honeywell remote control.

- P009: Ignition power. Is possible to set the soft start power level (% of max boiler power, range 0:99).

- P010: Boiler power selection (“1” HE 80 S - “2” HE 98 S).

- P011: Boiler type (“1” istantaneous - “2” only heating). -

- P012: Gas type (“0” Natural gas - “1” LPG gas).

- P013: Modulating pump type selection (“0” Wilo - “1” Grundfos).

- P014: Water pressure sensor selection: “0” pressure switch - “1” transducer

Press ESC to esc USER PARAMETERS mode.

7 - TIMER MODE (time clock version only). Press to select “Auto” (heating times set), “Manual” (heating on all the time) and oﬀ (heating oﬀ ).

It is possible to set the time and the current day (Monday 1, Tuesday 2, Wednesday 3, Thursday 4, Friday 5, Saturday 6, Sunday 7), see section 1.7.

8

1.6 BOILER VALUE

It is possible to show the boiler value. Press INFO button (item 6 ﬁ g. 1) to show the boiler values.

Use the arrow up and the arrow down buttons, (item 3 and 4 ﬁ g. 1) to show the following info:

water pressure ﬂ ow temperature (CHF) return temperature (CHR) domestic hot water temperature (DHW) % power of modulation fan speed (FAN) external temperature, if the external probe is present (OTC) error history error history error history error history error history

1.7 TIME (time clock version only)

SETTING THE TIME AND DAY

(time clock

version only):

1. Press and hold for 5 seconds the TIMER MODE button (item 7 ﬁ g. 1). The hour value will ﬂ ash.

2. Press the up and down arrow buttons (item 3 and 4 ﬁ g. 1) to select the current hour (24h). Then press the ENTER button (item 1 ﬁ g. 1) to begin to ﬂ ash on the display conﬁ rm after this the minutes will ﬂ ash.

3. Press the up and down arrow buttons (item 3 and 4 ﬁ g. 1) to select the current minutes and then press the ENTER button (item 1 ﬁ g. 1) to conﬁ rm, after this the day indicator will begin to ﬂ ash on the display.

4. Press the up and down arrow buttons (item 3 and 4 ﬁ g. 1) to select the current day (1=Mon, 2= Tue etc.) and then press the ENTER button to conﬁ rm. The time is now set, press ESC button (item 2 ﬁ g. 1) to esc time function.

KEY

1 - Day indicator:

(time clock version only)

1. Monday

2. Tuesday

3. Wednesday

4. Thursday

5. Friday

6. Saturday

7. Sunday 2 - Water temperature. 3 - Modulation ﬂ ame level: When the burner is lit, 3 diﬀ erent levels on icon 3 are displayed. 4 - Anomaly - Lock out.

5 - Manual: When the digital timer is set to manual icon 5 is displayed, in this mode the central heating is on permanently.

1.5 DIGITAL DISPLAY

Fig. 2

6 - Central Heating: when the appliance is in central heating mode icon 6 will ﬂ ash. 7 - Current time. 8 - Oﬀ (time clock version only): when the digital clock is in oﬀ function icon 8 is displayed. 9 - Auto (time clock version only): when the digital clock is in automatic function icon 9 is displayed. 10 - Domestic hot water: when the appliance is in domestic hot water mode the icon 10 will ﬂ ash. 11 - Test function. 12 - Water pressure: shows the current pressure in the system or day settins in timer mode.

1.8 PROGRAMMING THE HEATING TIMES (time clock version only)

The appliance incorporates a digital clock programmed with a default heating pattern (see table 1); however this can be modiﬁ ed to suit individual needs.

To change the programmed times:

1. Press and hold the timer mode button (item 7 ﬁ g. 1). The dispaly shows the current time, set the time if necessary.

2. Press and hold for 5 secons the timer mode button (item 7 ﬁ g. 1) again for another 5 seconds. The display shows the ﬁ rst heating period on the ﬁ rst day.

3. Press the up and down arrows (item 3 and 4 ﬁ g. 1) to select the On1 time (ﬁ rst on time) and press the ENTER button (item 2 ﬁ g. 1).

5. Press the up and down arrows to set the Oﬀ 1 time (ﬁ rst oﬀ ) and press ENTER button (item 2 ﬁ g. 1).

Repeat this process for the remaining 3 settings.

Note: if not all 4 times are required then set the remaining on and oﬀ times with the same hours, the display will show “------”. This cancels the remaining on and oﬀ . For example see the weekend settings in table 1.

Once the times are set, press the ESC button (item 2 ﬁ g. 1).and this will return to the main screen.

TABLE 1

9

NB: If setting the times in a group, the days in the group will all be the same, however days not in this group will remain at the default time.

For example, setting Mon-Sat will change all these days but Sunday will remain the same as table 1 unless changed individually.

If you wish to override these times, press the timer mode button to select manual (Fig.2 icon 5), this puts the boiler in manual mode which overrides the timer on the boiler so the heating is on permanently (providing any external controls ﬁ tted are calling for heat). To turn the heating oﬀ , press the timer mode button to select oﬀ , this will now turn the heating oﬀ permanently until either auto or manual is selected.

To copy the days:

1. In programming time, press the up and down arrows (item 3 and 4 ﬁ g. 1) to select the day to be copied.

2. Press INFO (item 6 ﬁ g. 1) and arrow up (item 3 ﬁ g. 1) buttons together to copy, the display shows “COPY SRC”.

3. Press the up and down arrow (item 3 and 4 ﬁ g. 1) to select the day that you want to change.

4. Press and hold the INFO (item 6 ﬁ g. 1) and arrow down (item 4 ﬁ g. 1) buttons together for 5 seconds to paste the settings, the display shows “COPY DST”.

1.9 DIAGNOSTIC

The display shows eventual error or faulty message.

Stop boiler: The boiler stops the operating cycle and waits for the disappearance of the cause of the error in order to go back to be operating mode.

Block boiler: the boiler requires a manual reset to become operational again.

10

2.0 GENERAL LAYOUT (Fig. 3)

Fig. 3

KEY

1 - C.H. ﬂ ow 2 - D.H.W. outlet 3 - Gas inlet 4 - D.H.W. ﬂ ow detector

5 - Water inlet 6 - C.H. return 7 - Drain point 8 - Pump 9 - Safety pressure relief valv 10 - Water pressure 11 - Automatic air vent

12 - C.H. return sensor 13 - Fan 14 - Expansion vessel 15 - Spark electrode 16 - Flue temperature sensor 17 - Main heat exchanger 18 - Sensing electrode 19 - Condensate drain 20 - Overheat cut off thermostat 21 - C.H. flow sensor

22 - Silencer 23 - Condensate trap 24 - Plate heat exchanger 25 - Gas valve

11

KEY

1 - Flue temperature sensor 2 - Main heat exchanger 3 - Sensing electrode 4 - Spark electrode 5 - CH return 6 - CH ﬂ ow 7 - Condensate drain 8 - Fan 9 - CH return sensor

10 - Overheat cut off thermostat 11 - CH ﬂ ow sensor 12 - Gas valve

13 - Expansion vessel 14 - Automatic air vent 15 - Pump 16 - Water pressure transducer 17 - Safety pressure system 18 - Diverter valve motor

19 - Plate heat exchanger 20 - DHW sensor 21 - DHW ﬂ ow sensor 22 - Gas service cock 23 - CH compression ball valve 24 - DHW compression ball valve 25 - CH compression ball valve

2.1 OPERATING SCHEME (Fig. 4)

Fig. 4

When starting, the fan will always start at the

set-point speed.

The boiler is ﬁ tted with an anti-cycling device

on the control board. This delays the boiler

from re-ﬁ ring within 10 minutes. If the heating temperature goes 20 °C below the set point, the burner restarts immediately. The domestic hot water will always take

priority and is unaﬀ ected by the anti-cycling

device.

2.6 GENERAL FUNCTION

The instrument panel allows adjustment of the

boiler to the heating requirements, between

the maximum and minimum settings.

Air and gas are drawn by the fan for combustion. The fan also forces exhaust gas

through the ﬂ ue to the outside, this creates

a lesser pressure in the sealed combustion

chamber, thus sucking in combustion air,

through the inlet duct.

The boiler water temperature is automatically

controlled by a built in thermostat.

Interior space temperature is set by the

room thermostat to be installed as part of the

heating system. The boiler already carries

connection terminals for this thermostat, as

well as for an external timer if required. The

burner continues to operate until it is stopped

by the digital clock or one of the thermostats.

When the internal CH temperature sensor or the room thermostat intervenes the burner

shuts down. The fan stops but the pump

continues to operate for 3 minutes.

The boiler also incorporates an anti-block

system which powers the pump every 24

hours, allowing it to operate for 2 minutes if

the boiler has not been in use. This operation

may in some cases be heard for a short

period when the pump has been activated.

The heat exchanger in the DHW circuit is a stainless steel plate heat exchanger water

to water, and domestic water is heated by

converting the water in the central heating

circuit. The transfer of heat is very high

because the two ﬂ uids move in a counter

direction.

Select the winter position by pressing the

ON/OFF button (item 1 ﬁ g. 1). When a hot water tap is turned on the diverter valve motor moves to exclude the central heating circuit, the boiler automatically modulates to maintain the domestic hot water at a constant

temperature. The water temperature can be regulated by

the digital display.

2.2 INTRODUCTION

This boiler is designed for the production of

central heating and domestic hot water combined in one unit. It is ﬁ tted with an automatic domestic hot

water priority valve.

It is possible to select either a summer or

winter function with the summer position only being for domestic hot water.

The winter position being for central heating

with domestic hot water priority.

2.3 DESCRIPTION OF CONTROL SYSTEM AND SEQUENCE OF OPERATION

2.4 Domestic hot water mode

When the appliance is in rest mode, select

the summer position by pressing the ON/OFF button (item 1 ﬁ g. 1) please ensure that the heating circuit is charged with water (above 1 bar).

If the domestic hot water tap is turned on, the

boiler will function in the following sequence:

The pump starts. The fan starts and sends a signal back to the ignition board that the fan is running.

The spark ignition system is powered which in

turn commences the spark igniter to operate and light the burner.

At this point the ignition board opens the gas

valve to light the burner.

When the electrode sensor senses the signal

that the burner is alight, the spark igniter stops.

The fan speed settings on the boiler increases

to the maximum permissible speed over a period of 5 seconds and will remain at its maximum required power until its maximum regulated temperature is achieved and then will modulate to maintain this.

When the domestic hot water tap is closed the

diverter valve goes back into rest mode, the burner is shut down along with the fan which is also switched oﬀ .

2.5 Central heating mode

If the appliance is in winter mode with a

demand for heat to supply radiators, etc. , with the heating circuit fully charged above 1 bar, so as to operate the low water sensor device the boiler will start in the same way as domestic hot water mode.

As the heating sensor reaches temperature

the fan speed modulates to maintain the temperature set on the display panel.

12

13

When there is a demand for domestic hot water, the burner and pump perform as they do during central heating except that the burner is commanded by the DHW thermostat.

When DHW is no longer called for (tap is

turned oﬀ ), the boiler will automatically return to the central heating mode.

Select the summer position by pressing the

summer/winter button. The boiler functions like an automatic gas hot water heater. When DHW is no longer required the burner

and pump and fan will immediately turn oﬀ . This also takes place when in winter mode, if there is no demand for heat to the central heating system or until the digital clock and room thermostat (if ﬁ tted) demands the central heating circuit.

2.8 SAFETY DEVICE

In both central heating and domestic hot

water mode safe operation is ensured by a

control board which shuts oﬀ the main

burner, if the fan stops or the ﬂ ue or combustion air intake duct is obstructed.

An overheat cut oﬀ thermostat acts to turn

oﬀ the burner to resettable “lockout”. A safety valve is ﬁ tted on the central heating

circuit set at 3 bar. A low water pressure switch set at 0.4 bar is

ﬁ tted on heating circuit, to prevent the boiler

operating below this boiler system pressure.

2.7 OVERALL DIMENSION (Fig. 5)

2.9 AVAILABLE PUMP HEAD

Fig. 5

14

Nominal heat Input net QMS 21.0 kW Minimum heat Input net 3.7 kW

Nominal heat output 20.4 kW Nominal heat output condensing 22.1 kW Minimum heat output 3.5 kW Minimum heat output condensing 3.9 kW

Inlet pressure 20 mbar Gas rate after 10 minutes Max 2.1 m3/h - min. 0.4 m3/h

Fan speed Max 5200 rpm - 173 Hz Combustion % CO2 : 9.0 (+ 0.5 / - 0.5) Case On 9.0 (+ 0.5 / - 0.5) Case Oﬀ C.H. min 1200 rpm - 40 Hz Combustion % CO2 : 8.5 (+ 0.5 / - 0.5) Case On 8.5 (+ 0.5 / - 0.5) Case Oﬀ

Electrical supply: 230 V ~ 50 Hz External fuse rating: 3 A Internal fuse F1: 3.15 A (20 mm To BS 4265)

Dry weight : 31 Kg Water content C.H.: 0.8 Litre Water content D.H.W.: 0.2 Litre

Gas Supply Connection 15 mm compression isolating valve Flow connection C.H. 22 mm compression isolating valve Return connection C.H. 22 mm compression isolating valve Inlet connection D.H.W. 15 mm compression isolating valve Outlet connection D.H.W. 15 mm compression valve Safety discharge C.H. 15 mm copper pipe Condensation drain 3/4” (21.5 mm) push ﬁ t over ﬂ ow

Max cold water capacity without additional expansion vessel 110 Litre

Sealed water system C.H. Max pressure PHS 2.5 bar Minimum working pressure 0.5 bar 7 Litres expansion vessel pre-charge-pressure 0.5 bar

Central Heating operating temperature Max 80 °C min 35 °C Design ﬂ ow rate 1066 I/h 20 °C rise

Minimum ﬂ ow rate C.H. 350 l/h D.H.W. ﬂ ow rate 30 °C rise 11.9 l/min

D.H.W. ﬂ ow rate 35 °C rise 10.2 l/min D.H.W. ﬂ ow rate 40 °C rise 8.9 l/min 10°C Inlet temperature

D.H.W. temperature Max 60 °C min 35 °C

Fan speed D.H.W. Max 6200 rpm - 207 Hz min 1200 rpm - 40 Hz Qmw Input Net Max 25.5 kW min 3.7 kW

D.H.W. Pressure Pmw Max 6.5 bar D.H.W. Pressure Pmw min 0.5 bar D.H.W. Minimum Flow Rate 2.5 I/min

Flue outlet nom. diameter 100 mm specially supplied with boilers (If required)

Destination: GB, IE Category: II2H3P

Flue Type: C13 - C33 - C53 SEDBUK A Electrical protection index: IP X4 D

LWA sound power level, indoors 50.5 dB NOx class 5 - 24.40 mg/kWh

ErP D.H.W.

Seasonal space heating energy eﬃ ciency class Water heating energy eﬃ ciency class

µs seasonal space heating energy eﬃ ciency 91.7 % Load Proﬁ le XL Pn nominal heat input 21.0 kW µwh water heating energy eﬃ ciency 85.1 % P4 nominal heat output high temperature 20.4 kW Qfuel daily fuel consumption 22.774 kWh P1 nominal heat output (30% Pn) low temperature 6.1 kW AFC Annual fuel consumption 17.284 GJ Qelec daily electricity consumption 0.2046 kWh AEC annual electricity consumption 44.802 kWh

µ4 eﬃ ciency at nominal heat output high temperature 87.3 % µ1 eﬃ ciency at 30% nominal heat output low temperature 97.0 %

Auxiliary electricity consumption:

elmax at full load 0.034 kW PSB in standby mode 0.005 kW elmin at part load 0.016 kW Pstby standby heat loss 0.028 kW

3 TECHNICAL DATA

HE 25 S Compact

TABLE 2/A

NATURAL GAS (G 20) П2H3P

15

3.1 TECHNICAL DATA

HE 25 S Compact

TABLE 2/B

LPG ( G 31) П2H3P

Nominal heat Input net QMS 21.0 kW Minimum heat Input net 3.7 kW

Nominal heat output 20.4 kW Nominal heat output condensing 22.1 kW Minimum heat output 3.5 kW Minimum heat output condensing 3.9 kW

Inlet pressure 37 mbar Gas rate after 10 minutes Max 2.1 m3/h - min. 0.4 m3/h

Fan speed Max 5000 rpm - 167 Hz Combustion % CO2 : 10.5 (+ 0.5 / - 0.5) Case On 10.5 (+ 0.5 / - 0.5) Case Oﬀ C.H. min 1200 rpm - 40 Hz Combustion % CO2 : 10.0 (+ 0.5 / - 0.5) Case On 10.0 (+ 0.5 / - 0.5) Case Oﬀ