Description

Hoval AgroLyt® (20-50)Log Wood Boiler

Subject to alterations, 1.8.2013 3

Hoval AgroLyt®

Heating boiler

steel boiler in compliance with EN 303-5

for burning split wood, chippings or wood

briquettes

can be combined with separate energy

storage unit

integrated safety heat exchanger for thermal

process control

-

haust and air-cooled lining

be adjusted

vortex combustion chamber with pre-heating

ducts and heat-proof ceramic inlet jets for

the secondary air intake

thermolytic secondary heating surfaces

and auxiliary switch for automatic low-tem-

pe rature gas exhaust system

kindling and ash door placed above grate

ash removal door for simultaneous access to

combustion chamber

options (delivered from factory):

- with or without mechanical aid to clear

and comfort WiKo (separately packed)

- with boiler control panel N5.1

(separately packed)

boiler door swivel-mounted to the left

thermal insulation with 80 mm mineral wool

matting (sep. packed)

lining made of powder coated sheet steel

(sep. packed)

suction ventilator with automatic low-tempe-

rature gas exhaust, load dependent

(ready wired and separately packed)

Accessories (included with delivery)

soot brush, ash scraper, poker and stand

Delivery

boiler, thermal insulation and casing plus

boiler control panel and if required surface

clearing aid delivered separately packed

On site

installation of the thermal insulation and

casing of the heating boiler

Installation

boiler control panel

WiKo aid for clearing heating surface

(only with WiKo version)

Plant test

plant test and demonstration (obligatory)

Boiler control panel N5.1

boiler control panel for mounting on boiler

or laterally to the left or right

prepared for installation of a TopTronic®T

heating controller

Basic boiler control with:

main switch ‘I/O’,

boiler temperature display

boiler temperature controller for two-stage

operation

boil er minimum temperature monitor for boil-

er start-up protection

fan

connector for door contact safety switch

connector for suction ventilator

connector for buffer charging pump

E connector 230 V, 50 Hz

WiKo clearing aid for Hoval AgroLyt®

mechanical aid to clear heating surface for im-

Model series

AgroLyt® Heating capacity

Type kW

(20) 20

(25) 25

(35) 35

(50) 50

Return temperature control group

type RH 32-TK (thermal)only for AgroLyt® with boiler control N5.1

consisting of:

with cable ready for connection to boiler con-

trol N5.1.

3 shut off switch ball valves:

- storage tank-return

-

- boiler return with thermometer

® sizes.

Delivery

return temperature control group and stora-

ge tank loading pump with cable supplied in

se parate packaging.

On site

installation of the prepared return tempera-

ture control group on boiler

mounting of biral pump

Energy storage unit EnerValHot water storage tank with large lower flange

for heating, electrical ignition cartridge and

thermostats and thermometer.

operating pressure: max. 3 bar

operating temperature: max. 95 °C

As required:

thermal insulation for energy storage unit.

Approval heating boiler

AgroLyt® (20-50)

VKF No. 13369

VHe No. / HeS No. 0022/3

Description

4 Subject to alterations, 1.8.2013

Hoval AgroLyt® (20-50)Log Wood Boiler

Heating regulator set ZN2As supplement to boiler control N5.1.

Consisting of:

heating regulator Hoval TopTronic®T/N for

- 1 mixing circuit

- hot water charging circuit

possibility of further functions using various

key modules

large LCD display

turn-and-press button

keys for

- day room temperature

- night room temperature

- hot water temperature

- operating mode (holiday, absence,

heating period extension, automatic,

summer, heating period permanent –

reduced – frost protection)

- characteristic curve setting

- plant information

- emission measurement

and manual operation

outdoor sensor AF200

connection for room controls

cable set

for connecting the heating regulation

TopTronic®T/N to the boiler control

Delivery

heating regulator set separately packed,

installation on site

Part N°

Part N°

Hoval AgroLyt® (20-50)

Subject to alterations, 1.8.2013 5

7007 091

7007 092

7007 094

7007 098

AgroLyt® capacity length length volume

type kW m mm litres

(20) 20 ½ 570 140

(25) 25 ½ 570 160

(35) 35 ½ 570 160

(50) 50 ½ 570 220

Steel boiler with basic boiler control. Integrated

safety heat exchanger for thermal process

con trol.

Boiler, boiler control panel and thermal insulati-

on with lining delivered separately packed.

Log wood boiler Hoval AgroLyt®

with basic boiler control N5.1

7007 101

7007 102

7007 104

7007 108

AgroLyt® capacity length length volume

type kW m mm litres

(20) 20 ½ 570 140

(25) 25 ½ 570 160

(35) 35 ½ 570 160

(50) 50 ½ 570 220

As described above, but including heating

surface clearing aid WiKo.

Boiler, boiler control panel, heating surface

clearing aid and thermal insulation material

with cladding supplied separately.

Log wood boiler Hoval AgroLyt® with

basic boiler control N5.1 and heating

surface clearing aid WiKo

CAUTION:

It is essential to install

a return temperature control!

It is essential to install an energy-saving

draught restrictor ZT 15!

See the notes under required draught

and chimney

by about 35 °C by use of the heating

surface clearing device!

Lambda probe

for AgroLyt® (20-50)

with boiler controller

N5.2/TopTronic® lambda

for combustion optimisation

incl. assembly accessories

6915 80

Part N°

Part N°

6 Subject to alterations, 1.8.2013

Hoval AgroLyt® (20-50)

7007 111 7007 112

7007 114

7007 115

7007 118

7007 121

7007 122

7007 123

7007 124

7007 125 7007 128

Nominal Log Filling capacity

AgroLyt capacity length length volume

type kW m mm litres

(20) TTL 18,0 1/2 570 140

(25) TTL 25,0 1/2 570 160

(30) TTL 27,2 1/2 570 160

(35) TTL 36,0 1/2 570 160

(40) TTL 39,7 1/2 570 160

(50) TTL 50,0 1/2 570 220

Configuration as on the previous page, but

additionally with heating surface cleaning

WiKo.

Delivery: Boiler, boiler switch panel and ther-

mal insulation with cladding and heating sur-

face cleaning are supplied separately packed.

Log wood boiler Hoval AgroLyt® with basic

boiler control N5.2 TopTronic® lambda and

heating surface clearing aid WiKo

Nominal Log Filling capacity

AgroLyt capacity length length volume

type kW m mm litres

(20) TTL 18,0 1/2 570 140

(25) TTL 25,0 1/2 570 160

(35) TTL 36,0 1/2 570 160

(40) TTL 39,7 1/2 570 160

(50) TTL 50,0 1/2 570 220

but with boiler control N5.2/TopTronic® lambda.

tact sensor and energy buffer storage sensor

for combustion and performance optimisation.

Delivery: Boiler, boiler switch panel and ther-

mal insulation with cladding are supplied sepa-

rately packed.

Lambda probe for optimising combustion

and return temperature control group type

RH32-M must be ordered separately (see

accessories).

Log wood boiler Hoval AgroLyt®

with basic boiler control N5.2/

TopTronic® lambda

CAUTION:

It is essential to install a

return temperature control!

It is essential to install an energy-saving

draught restrictor ZT 15!

See the notes under required draught

and chimney

CAUTION: load is reduced by approx. 35 °C on average by the heating surface cleaning!

CAUTION:

It is essential to install a

return temperature control!

It is essential to install an energy-saving

draught restrictor ZT 15!

See the notes under required draught

and chimney

Ash-tray

for AgroLyt®

Consisting of:

Upper and lower ash-trays, including

wall bracket and fixing material.

6412 60

Wood chip chute

for AgroLyt® (20-50)

for easier filling with wood chips

and kindling.

The proportion of wood chips or kindling

should not exceed 50% of a wood load.

Proper combustion is only to be ensured

with a correct mixture of at least 50%

log wood (½-metre).

6024 343

Thermal return temperature control group

type RH 32-TK

for AgroLyt® (20-50)

suitable for boiler control panel N5.1:

Thermal control valve

3-way valve and high-efficiency pump

6022 624

Return temperature control kit DN25

for BioLyt (15,23), AgroLyt® (20,25)

for return flow temperature increase

Consisting of:

3-way motor mixer

kvs: 12 m3/h

6032 419

Return temperature control kit DN32

for BioLyt (25-36), AgroLyt® (35,50)

for return flow temperature increase

Consisting of:

3-way motor mixer

kvs: 18 m3/h

6027 843

Part N°

Part N°

Hoval AgroLyt® (20-50)

Subject to alterations, 1.8.2013 7

Boiler accessories

6032 418

6022 628

for AgroLyt® (20,25) Mixer: kvs 12 m3/h

for AgroLyt® (35,50) Mixer: kvs 18 m3/h

Return temperature control group DN32

for return flow temperature increase

With 3-way motor mixer and Biral pump

Ball valves in installation flow/return

Valve equipped with thermometer

in boiler return

Insulated piping

Complete with fittings for

assembly at boiler connection

Connection: Rp 1¼"

Pump enclosed separately.

6027 955

6027 956

6027 957

Automatic ignition device

Consisting of:

hot air blower with electrical kit and

cover hood; incl. assembly accessories.

for AgroLyt® (20) TTL

for AgroLyt® (25-40) TTL

for AgroLyt® (50) TTL

Heating regulator set ZN2

as addition to boiler control panel N5.1

for the connection of the heating

regulator TopTronic®T/ N with the

boiler controller

Consisting of:

Heating regulator TopTronic®T/N for

- 1 mixer circuit

- 1 domestic hot water loading circuit

Outdoor sensor AF200

Flow sensor VF204

with 4 m cable

2 immersion sensors KVT20/5/6

for calorifier and buffer storage unit

with 5 m cable

Cable set ZN2

Delivery:

Heating regulator set separately packed,

mounting on-site

6020 567

Heating regulator set N2

as addition to boiler control panel

N5.2/ TopTronic® lambda

Consisting of:

Heating regulator TopTronic®T/N for

- 1 mixer circuit

- 1 domestic hot water loading circuit

Outdoor sensor AF200

Flow sensor VF204

with 4 m cable

2 immersion sensors KVT20/5/6

for calorifier and buffer storage unit

with 5 m cable

Delivery:

Heating regulator set separately packed,

mounting on-site

6020 569

Part N°

Part N°

8 Subject to alterations, 1.8.2013

Hoval AgroLyt® (20-50)

Heating regulator set TopTronic®T

Control set to be fitted into the boiler switch

panel on site.

Delivery

Heating control set packed separately

Part N°

Part N°

Hoval AgroLyt® (20-50)

Subject to alterations, 1.8.2013 9

Key module 1

for 2nd mixing circuit

function key 1, 1 flow sensor, 2 loose plugs

Key module 2

for solid fuel/ buffer storage unit/ bivalent plant

function key 2, 3 immersion sensor, 4 loose plugs

Key module 3

for solar plants

function key 3, 1 collector sensor, 1 storage

sensor, 4 loose plugs

Key module 4

for 2nd mixing circuit and solid fuel/ buffer storage

unit/ bivalent plant

function key 4, 1 flow sensor, 3 immersion sensor,

6 loose plugs

Key module 5

for 2nd mixing circuit and solar plant

function key 5, 1 flow sensor, 1 collector sensor,

1 storage sensor, 6 loose plugs

Key module 6

for solid fuel/buffer storage unit/bivalent plant and

solar plant

function key 6, 1 collector sensor, 4 immersion

sensor, 6 loose plugs

Key module 7

for 2nd mixing circuit, solid fuel/buffer storage unit/

bivalent and solar plant

function key 7, 1 flow sensor, 1 collector sensor,

4 immersion sensor, 8 loose plugs

Sensor types

Immersion-/ : Typ KVT20/5/6 (L = 5 m)

calorifier sensor without immersion sleeve

Flow sensor : Type VF204S with plug

Collector sensor : Type PT1000 (Silicon)

Accessories for heating regulation

system TopTronic®T

M

Key Modules for TopTronic®T

for further functions in addition

to the standard functions.

Key module consisting of:

function key for insertion into the

TopTronic®T incl. fittings

Only one key module possible!

6012 154

6012 155

6012 156

6012 157

6012 158

6012 159

6012 160

Standard functions

already realised in the TopTronic®T.

- 1 mixing circuit

- hot water charging circuit

1

2

3

4

5

6

7

1-7

M

M

M

M

M

M

3

Functions of the key modules

key 2nd mixing solid buffer solar

module circuit bivalent

2

1

4

5

6

7

M

System Solutions and Applications

see Hoval CD

Room station RS-T

for TopTronic®T

effective on one mixing circuit

2034 939

Remote control RFF-T

for TopTronic®T

effective on one mixing circuit

2022 239

Outdoor sensor AF 200

(may be included in the heat generator

scope of delivery)

for one mixing circuit or for the mean

value (per regulator 2 outdoor

temperature sensors possible)

2022 995

Cable sensor KVT 20/5/6

with 5 m cable

2022 992

Contact sensor VF204

can be used as flow or return

flow sensor

with 4 m cable

2023 998

Flue gas thermometer with drag indicator

Ø 5 / 80x150 mm (mounting on site)

Range of indication 100°C - 500°C

2412 37

Flow temperature guard

RAK-TW1000.S SB 280

Range of switching temperatures

adjustable with tools 15-95°C

switching differential 6K

Thermostat with immersion sleeve ½"

depth of immersion 280 mm

brass nickel-plated

6010 083

Part N°

Part N°

10 Subject to alterations, 1.8.2013

Hoval AgroLyt® (20-50)

Accessories for heating regulation

system TopTronic®T

Flow temperature guard

for floor heating system (heating circuit

1 guard) 15-95 °C, differential gab 6 K, capilla-

ry tube max. 700 mm setting (visible from the

out side) inside the housing cover

Clamp-on thermostat RAK-TW1000.S

Thermostat with strap, without cable and plug

242 902

Immersion thermostat RAK-TW1000.S SB 150

Thermostat with pocket ½" - depth of immersi-

on 150 mm, brass nickel-plated

6010 082

Flue gas thermostat AGT 519

Switching temperature 80 °C

(switching differential approx. 15 K)

1 switchover contact 10 A

at 230 V/ 50 Hz ohm resistive load

Simple screw fastening on flue pipe,

with 2 m connecting cable.

Tested according to DIN 3440

6412 56

Damper ZT 15

Damper Z130 and T-piece 90° of

stainless steel

Inner Ø 150 mm

6008 037

Thermal process control unit STS20

Valve ¾" with capillary tube 1,3 m

Immersion well ½", L 142 mm

2426 62

Safety set SG15-1"

Suitable up to max. 50 kW

complete with safety valve (3 bar)

Pressure gauge and automatic air vent

with cut off valve

Connection: 1" internal thread

6411 84

Thermal control valve

for return flow temperature

increase 57 °C

1½"

incl. integrated check valve

kVS = 14

6409 29

Three way valve B3G460

PN 10, 110°C, DN 32

case, shaft and segment made of brass

maintenance-free O-ring seal

Mounting optionally on left or

right side

kvs value 18 m3/h

2039 170

Actuator NR230-E-20

for three-way valve B3G460

Operating voltage 230V/50Hz

Single wire control

Torque 10 Nm

Actuation time 140 s

manual/automatic positioning

reversible direction of rotation and

scale for position indicator 0...10

1 cable (2 m) for actuator mounted

on the drive.

Complete with assembly material

2452 35

Part N°

Part N°

Hoval AgroLyt® (20-50)

Subject to alterations, 1.8.2013 11

Accessories

Further information

see separate brochure

Switchover unit: For alternating operation of

a solid fuel boiler with a boiler of a different

energy type or for start-up relief

Technical data

12 Subject to alterations, 1.8.2013

Hoval AgroLyt® (20-50)

Hoval AgroLyt® with basic boiler control N5.1

Type (20) (25) (35) (50)

Hoval AgroLyt® N5.1

nominal heating capacity (N5.1) kW 20 25 35 50

heating capacity range (N5.1) kW 16-20 19-25 26-35 35-50

Data for deciduous wood

usable heating value (tolerance ± 20 %) kWh 180 200 200 265

kg 47 53 53 70

combustion time at nominal heating capacity approx. h 7,8 6,8 4,9 4,5

log length m ½ ½ ½ ½

Data for coniferous wood

usable heating value (tolerance ± 20 %) kWh 126 140 140 179

kg 35 39 39 50

combustion time at nominal heating capacity approx. h 5,4 4,9 3,5 3,2

log length m ½ ½ ½ ½

maximum heating boiler operating temperature °C 85 85 85 85

minimum heating boiler operating temperature °C 70 70 70 70 °C 55 55 55 55

1 at nominal capacity without WiKo °C 190 190 200 2001 at nominal capacity with WiKo °C 160 160 160 170

carbon dioxide CO2

% 10-14 10-14 10-14 10-14

operating pressure / testing pressure bar 3,0/4,5 3,0/4,5 3,0/4,5 3,0/4,5

80 °C boiler water temperature (N5.1) % >88 >88 >88 >88

11,0 % CO2, humidity content of wood 20 % kg/h 64 76 105 144

throughput resistance wood boiler z-value 2,8 2,8 2,8 2,7

water side resistance at 10 K mbar 8,3 12,9 25,2 50,2

water side resistance at 20 K mbar 2,0 3,2 6,3 12,5

water throughput at 10 K m3/h 1,72 2,15 3,01 4,30

water throughput at 20 K m3/h 0,86 1,07 1,50 2,15

boiler water content litres 195 195 190 220

litres 140 160 160 220

thickness of boiler body insulation mm 80 80 80 80

weight with casing kg 750 750 760 835

without casing kg 680 680 690 745

width mm 350 400 400 400

height mm 620 620 620 840

depth mm 570 570 570 570

feeding aperture width x height mm 450x400 450x400 450x400 450x400

dimensions (with/without switch panel) width mm 860/690 860/690 860/690 860/690

(with/without switch panel) depth mm 1375 1375 1375 1375

height mm 1670/1500 1670/1500 1670/1500 1890/1720

dimensions for installation width mm 600 600 600 600

depth mm 1200 1200 1200 1200

height mm 1570 1570 1570 1790

Thermal process control

switching point for the thermal process control °C 95 95 95 95

minimum throughput water quantity (cold water 10 °C) m3/h 1,50 1,5 2,0 2,0

bar 2,0/6,0 2,0/6,0 2,0/6,0 2,0/6,0

Flue gas system 1

minimum draught required for boiler Pa 10 10 10 10

maximum permitted draught Pa 25 25 25 25

nominal electrical power requirement (N5.1) watts 80 80 80 80

1 A damper control must be installed.

Dimensions

Hoval AgroLyt® (20-50)

Subject to alterations, 1.8.2013 13

(Dimensions in mm)

AgroLyt® Height

Type H1 H2 A C D

(20-40) 1500 1570 1544 1335 1236

(50) 1720 1790 1764 1555 1456

* Required space

Boiler control can be mounted

on top or on left or right side

1a Boiler flow connection R 1¼"

1b Installation flow connection Rp 1¼"

2a Boiler return connection R 1¼"

2b Installation return connection Rp 1¼"

3 safety heat exchanger 2 x R ½"

4 connector safety group and air vent, Rp 1"

5 drainage R ¾"

6 flue gas sleeve Ø150 (outer)

Space requirements

– see separate drawing

Heig

ht H

1

Heig

ht H

2 *

7 immersion well for boiler water

temperature sensor

8 sleeve for safety heat exchanger sensor Rp ½"

9 suction ventilator

10 electrical controls

11 aperture for cleaning

12 heating surface clearing aid Wiko

Dimensions

14 Subject to alterations, 1.8.2013

Hoval AgroLyt® (20-50)

Space requirements

(Dimensions in mm)

Space requirements for

mounting the side casing.

After mounting the casing

the boiler can be moved

against the wall.

Minimum lateral space

requirements incl. control

panel, for servicing the

safeguard

appro

x. 700

min 1200

min 600min 400

min 400

Minimum spacing 700 mm.

The cleaning aperture at

the boiler must be easy to

access.

Engineering

Hoval AgroLyt® (20-50)

Subject to alterations, 1.8.2013 15

Maximal filling quantity based on VDI 2035

[mol/m3] 1 <0,1 0,5 1 1,5 2 2,5 3 >3,0

f°H <1 5 10 15 20 25 30 >30

d°H <0,56 2,8 5,6 8,4 11,2 14,0 16,8 >16,8

e°H <0,71 3,6 7,1 10,7 14,2 17,8 21,3 >21,3

~mg/l <10 50,0 100,0 150,0 200,0 250,0 300,0 >300

Conductance 2 <20 100,0 200,0 300,0 400,0 500,0 600,0 >600

Boiler size of

individual boiler

to 50 kW NO REQUIREMENT 20 l/kW

1 sum of alkaline earths2 If the conductance in µS/cm exceeds the tabular value, a water analysis is necessary.

Regulations and GuidelinesThe following regulations and guidelines

must be observed:

Hoval’s technical information and installation instructions.

Hoval’s hydraulic and technical control regulations.

Local building law

Fire protection standard

DVGW guidelines

DIN EN 12828 Heating systems in buildings

- Design of hot water systems.

DIN EN 12831 Heating systems in buildings - Procedure for calculation of the standard heating capacity

VDE 0100

Water qualityHeating water

The European Standard EN 14868 and the Directive VDI 2035 must be observed.

Hoval boilers and calorifiers are designed for heating plants without significant oxygen intake (plant type I according to EN 14868).

Plants with

- continuous oxygen intake

(e.g. underfloor heating systems without

diffusion proof plastic piping) or

- intermittent oxygen intake

(e.g. where frequent refilling is necessary)

must be equipped with separate circuits.

Treated heating water must be tested at

least 1 x yearly. According to the inhibitor

manufacturer‘s instructions, more frequent

testing may be necessary.

A refilling is not necessary if the quality of

the heating water in existing installations

(e.g. exchange of boiler) conforms to

VDI 2035. The Directive VDI 2035 applies

equally to the replacement water.

New and if applicable existing installations

need to be adequately cleaned and flushed

before being filled. The boiler may only be

fil led after the heating system has been

flush ed!

Parts of the boiler which are in contact with

water are made of ferrous materials.

On account of the danger of stress cracking

corrosion the chloride, nitrate and sulphate

contents of the heating water must not ex-

ceed 200 mg/l in total.

The pH value of the heating water should

lie between 8,3 and 9,5 after 6 -12 weeks of

heating operation.

Filling and replacement water:

For a plant using Hoval boilers untreated

drink ing water is generally best suited as

heat ing medium, i.e. as filling and replace-

ment water. However, the quality of the

un treat ed drinking water must fulfil the

stand ard set in VDI 2035. Should the mains

wa ter available not be suited for use then it

must be desalinated and/ or be treated with

in hibitors. The stipulations of EN 14868 must

be observed.

In order to maintain a high level of boiler

ef fi ciency and to avoid overheating of the

heat ing surfaces the values given in the

ta ble should not be exceeded (dependent on

boil er performance ratings - for multi-boiler

plants rating of smallest boiler applies - and

on the water content of the plant).

The total amount of filling and replacement

water which is used throughout the total ser-

vice life of the boiler must not exceed three

times the water capacity of the plant.

Boiler roomThe boiler room must comply with fire regu-lations.

The combustion air supply must be guaran-

teed. The air opening should be in the lee

of the prevailing wind direction and may not

be shuttered in any way. The minimum free

opening cross-section is 200 cm2.

Space requirements

-

sible (for the purpose of dismantling it).

Buffer Storage Unit SelectionRecommended minimum storage unit size

AgroLyt® storage unit volume *

type minimum dm3

(20) 1000

(25) 1500

(35) 2000

(50) 3000

out side temperature maximum 40°C, heating

quan tity is taken up by the storage unit.

Engineering

16 Subject to alterations, 1.8.2013

Hoval AgroLyt® (20-50)

Installation

Buffer storage unit and

return flow safeguard

For the Hoval AgroLyt® a buffer storage unit

with automatic storage and charging con trol

and boiler return flow control must be in stal-

led.

Hydraulic switching

Please observe the examples for use.

Heat distribution

For central heating of rooms an automatic

temperature regulator with one or more mix-

ing circuits should be installed.

Plant with open expansion chamber

The height of the plant must be such that at

least the required minimum pressure in the

suction pipe of the pump is maintained in

order to prevent cavitation

(see heading ‘circulation pumps - pumps’)

Plant with pressurised expansion chamber

In accordance with the SWKI regulation 93-1

pressurised expansion chambers are only

permissible in combination with a thermal

process controller consisting of an integrated

heat exchanger in the boiler together with a

thermal discharge valve.

Safety valve

A safety valve with an automatic air vent

must be installed at the connector for the

safety group.

Thermal Process ControlIf a pressurised expansion chamber is in stal-

led then a thermal process controller must

also be installed

(in accordance with. SWKI regulation 93-1).

The thermal process control must be con-

nec ted to the cold water supply. The mini-

mum required flow pressure is 2 bar.

Minimum throughput:

AgroLyt® (20) = 1500 l/h

(25) = 1500 l/h

(35) = 2000 l/h

(50) = 2000 l/h.

The cleaning aperture for the connector (top

of boiler) must remain easily accessible. In-

stall water pipes vertically upwards.

Boiler Selection

the hourly heating capacity demand of the

building.

how often the boiler must be fuelled so that

the heating demand is covered in periods of

minimum outside temperatures.

Qh = Heating requirement at -10 °C

outside temperature

°C = The daily heating requirement can be met when

at least this outside temperature prevails.

Basis for calculation: Firing with deciduous wood,

= 14 x Qh.

type (20) type (25) type (35) type (50)

loads/day loads/day loads/day loads/day

Qh 1 2 1 2 1 2 1 2

kW °C °C °C °C °C °C °C °C

6 – –

8 -10 – –

10 -10 -10 -10

12 -5 -10 -9 - 9 - 10

14 -2 -10 -5 -5 - 10

16 1 -10 -1 -1 - 8

18 3 -10 1 -10 1 -10 - 5

20 5 -10 3 -10 3 -10 - 2

25 – – 6 -8 6 -8 2 - 10

30 – – 9 -2 5 - 10

35 – – 10 0 7 - 5

40 9 - 3

45 9 0

50 11 2

Engineering

Hoval AgroLyt® (20-50)

Subject to alterations, 1.8.2013 17

Chimney

The Agrolyt® must be connected to a chim-

ney (flue gas temperature > 200 °C).

The effective height of the chimney must be

at least 6 m.

The chimney outlet should be higher than

the roof ridge.

The flue gas ducts must be capable of with-

standing humidity, acidity and soot combus-

tion and be approved for flue gas tempera-

tures > 160 °C.

Existing chimneys must be renovated ac-

cord ing to the instructions of a chimney

con structor.

Determination of the flue gas duct cross-

section in accordance with EN 13384

Part 1 and 2

A flue gas thermometer (included with the

AgroLyt®) must be installed in the connec-

ting pipe. This is necessary in order to main-

tain a high level of plant efficiency.

An auxiliary air flap as chimney damper con-

trol is recommended.

Non-binding standard values

for chimney cross-sections

made of chrome steel piping connecting pipe

= 1,0. connecting pipe and heating boiler

connecting pipe and chimney should be ther-

mally insulated. Height above sea level

AgroLyt®

type (20) (25) (35) (50)

m Ø (mm)

11-15 175 175 175 200

6-10 175 200 200 225

m = effective chimney height

Ø = minimum required chimney diameter (mm)

Chimney / Flue SystemConnecting pipe

Feed the flue pipe connecting increasing

bet ween the heating boiler and the chimney

with a gradient of 30-45° into the chimney, if

possible.

For a pipe longer than 1 m thermal insulation

is necessary.

The connecting pipe must be introduced into

the chimney in such a way that no conden-

sate can flow into the heating boiler.

The connecting pipe must contain a circular,

closable flue gas measurement aperture

with an inner diameter of 10-21 mm. The

ap er ture must be accessible through the

ther mal insulation if present.

Position:

D

D

2xD2D

1D

Required draught

In calculating the chimney dimensions the

chimney draught should be between 0,1

and 0,25 mbar (10-25 Pa).

To reliably prevent the occurrence of exces-sive flue draught, it is essential to install a damper. The damper ensures a constant flue draught, protection of the heating equip-ment, effective ventilation of the flue and optimum energy utilisation. This is the only reliable way to protect the boiler against ac-cidental overload.

Fuelair-dried, untreated log wood such as split

logs, billets or roundwood.

max. Ø 15 cm

guidelines for dry storage:

softwood 1 to 1½ years

hardwood 2 to 2½ years

untreated coarse wood chips

(humidity < 30 %) including attached bark

split wood (thus the proportion of coarse

chips can be approx. 50 % according to

quality).

Pressed chips, shavings etc with diameter

the use of bonding agents, in combination

with 50 % split wood (thus the proportion of

pressed wood can be approx. 50 % accord-

ing to quality).

Carpentry waste in the form of bonded wood

providing this is free from wood protection

50 % split wood (thus the proportion of car-

pentry waste can be approx. 50 % according

to quality).

Fuels

which may not be used

- coke, coal

- sawdust

- plastic-coated waste wood

- treated or painted wood

- plastic

- waste

The burning of waste, of wood treated with

wood preservatives or with a coating consi-

sting of halogenated organic compounds is

prohibited.

Please observe the 1. BImSchV (first regu-

lation for the implementation of the Federal

immission control law) § 6.

Determining the approx. yearly fuel demand

for central heating

wood requirement kg kW x 500

loose deciduous wood kW x 1

loose coniferous wood kW x 1,5

kW = max. heating demand in kW

kg, m3 = approx. yearly wood consumption

(note that the weight per m3 can

vary a great deal according to the

wood quality).

Examples

18 Subject to alterations, 1.8.2013

Hoval AgroLyt® (20-50)

Hoval AgroLyt® with basic boiler control N5.1

Monovalent plant with distributor and charging group, thermal return flow control,

2 energy storage units, 1 calorifier and 1 heating circuit

Hydraulic plan BDBT010

Monovalent plant with distributor and charging group, thermal return flow control,

2 energy storage units, 1 calorifier with solar plant and 1 heating circuit

Hydraulikschema BDBT060

RS-T Room station

AF Outdoor sensor

VF1 Flow sensor 1

VF2 Flow sensor 2

SF Calorifier heater sensor

B1 Flow temperature guard

(if required)

MK1 Pump mixing circuit 1

MK2 Pump mixing circuit 2

(optional)

M8 Buffer charging pump

PF Hot water tank sensor

SLP Calorifier loading pump

SOP Solar circulation pump

YK1 Actuator mixer 1

YK2 Actuator mixer 2

Y9 Switch over valve start up re-

lease (single wire system)

KRLF Solar panel return sensor

KSPF Solar tank sensor

(calorifier / buffer)

KVLF Solar panel flow sensor - PT1000

CW Cold Water

DHW Domestic Hot Water

DHW

CW

Notice:

- This hydraulic schematic is a principle

schematic. It does not contain all details

for installation. The installation must be

done according to local conditions, di men-

sioning and regulations

-

monitor must be built-in.

- Shut-off devices to the safety valve (pres-

surized expansion tank, safety valve, etc.)

are to safe against unintended closing!

- Mount bags to prevent single pipe gravity

circulation.

DHW

CW

Examples

Hoval AgroLyt® (20-50)

Subject to alterations, 1.8.2013 19

Bivalent plant with distributor and charging group, constant return flow control,

2 energy storage units, 1 calorifier and partial solar heating.

Hydraulic plan HDST030

Hoval AgroLyt® with boiler control N5.2/ TopTronic® lambda

Monovalent plant with distributor and charging group, constant return flow control,

2 energy storage units, 1 calorifier and 1 heating circuit

Hydraulic plan BDBT110

RS-T Room station

MK1 Pump mixing circuit 1

MK2 Pump mixing circuit 2

M8 Buffer charging pump

SLP Calorifier loading pump

SOP Solar circulation pump

SOP1 Solar circulation pump 1

SOP2 Solar circulation pump 2

SLV Water by-pass solar circuit

YK1 Actuator mixer 1

YK2 Actuator mixer 2

YKR Actuator return mixer

Y9 Switch over valve start up release

(single wire system)

B1 Flow temperature guard (if required)

SF Calorifier sensor

S1 Calorifier sensor

PF Buffer sensor

BP1 Buffer sensor 1

BP2 Buffer sensor 2

BRU Return sensor

AF Outdoor sensor

VF1 Flow sensor 1

VF2 Flow sensor 2

KSPF Solar tank sensor

(calorifier / buffer)

SLVF Solar sensor

(calorifier / buffer)

KVLF Solar sensor (collector PT1000)

S1-S5 Differential control sensor

CW Cold Water

DHW Domestic Hot Water

Notice:

- This hydraulic schematic is a principle

schematic. It does not contain all details

for installation. The installation must be

done according to local conditions, di men-

sioning and regulations

-

monitor must be built-in.

- Shut-off devices to the safety valve (pres-

surized expansion tank, safety valve, etc.)

are to safe against unintended closing!

- Mount bags to prevent single pipe gravity

circulation.

B1VF1

TT

M K 1

MYK1

RS-T

AF

TopTronic T

3

TT

S L P

WW

KSPFT 2SLVFKSPF

TT

SOP

P

KVLFS 1KVLF

W

KRLF

Dies ist ein unerlaubter Weg!Gehen Sie einen Schritt zurück oder löschen Sie dieses Shape!Sie haben die Möglichkeit ein neues Shape zu nehmen!!! hovhovalhovalhovalhovalhovalhovalhovalhovalhoovalhovallhovalhov

BRU

P

AgroLytlambda

YKR

Y

M 8

T

Dies ist ein unerlaubter Weg!Gehen Sie einen Schritt zurück oder löschen Sie dieses Shape!Sie haben die Möglichkeit ein neues Shape zu nehmen!!! hovhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalho

T

T

T

M

Dies ist ein unerlaubter Weg!Gehen Sie einen Schritt zurück oder löschen Sie dieses Shape!Sie haben die Möglichkeit ein neues Shape zu nehmen!!! hovhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalho

HPEY 9

PF

BP1

BP2

Dies ist ein unerlaubter Weg!Gehen Sie einen Schritt zurück oder löschen Sie dieses Shape!Sie haben die Möglichkeit ein neues Shape zu nehmen!!! hovhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalh

TS F

KW

DHW

CW

Hydr. » Kombinierte HeizungssystemeVerbindungshinweise /

KF

PFBezeichnung /Notation /Denominazione /Désignation

Klemme /Terminal /Morsetti /Bornes

Y9

1 VA1

SOP

VA2

SLV

VE2

SLVF

VE3

KRLF

B1VF1

TT

M K 1

MYK1

TT

S L P

RS-T

AF

TopTronic T

35

B1VF2

TT

M K 2

MYK2

B1VF2

TT

M K 2

MYK2

BP1

WT

TT

P

SOP1

SOP2

KVLFS 1KVLF

W

T

T

KRLF

TSLV

Dies ist ein unerlaubter Weg!Gehen Sie einen Schritt zurück oder löschen Sie dieses Shape!Sie haben die Möglichkeit ein neues Shape zu nehmen!!! hovhovalhovalhovalhovalhovalhovalhovalhovalhoovalhovallhovalhov

BRU

P

AgroLytlambda

YKR

Y

M 8

T

Dies ist ein unerlaubter Weg!Gehen Sie einen Schritt zurück oder löschen Sie dieses Shape!Sie haben die Möglichkeit ein neues Shape zu nehmen!!! hovhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalho

T

Dies ist ein unerlaubter Weg!Gehen Sie einen Schritt zurück oder löschen Sie dieses Shape!Sie haben die Möglichkeit ein neues Shape zu nehmen!!! hovhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalho

PF

MY 9

PF2KSPF

T

BP2

Option / opzione

Solar / solaire / solare >~12m2

SLVF

WW

Dies ist ein unerlaubter Weg!Gehen Sie einen Schritt zurück oder löschen Sie dieses Shape!Sie haben die Möglichkeit ein neues Shape zu nehmen!!! hovhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalhovalh

TS F

KW

KSPFT 2SLVFSLVF

min.0,2m2/m2

DHW

CW