Hoval RoofVent RH, RoofVent RC, RoofVent RHC, RoofVent R Original Operating Manual

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RoofVent® RH | RC | RHC | R

Original operating manual

RoofVent® RH

RoofVent

RHC

Art.No. 4 214 745-en-04 / Page 1

RoofVent® RH | RC | RHC | R

1 Use 3

1.1 Intended use 3

1.2 User group 3

2 Safety 4

2.1 Symbols 4

2.2 Operational safety 4

3 Construction and operation 5

3.1 Construction 5

3.2 Air distribution with the Air-Injector 5

3.3 Function diagram 7

3.4 Operating modes 8

4 Unit type reference 10

5 Technical data 12

5.1 Application limits 12

5.2 Heat recovery system (HRS) 12

5.3 Air ltration 12

5.4 Flow rate, product parameters 13

5.5 Heat output 14

5.6 Cooling capacities 15

5.7 Dimensions and weights of the RoofVent

5.8 Dimensions and weights of the RoofVent

5.9 Dimensions and weights of the RoofVent

5.10 Dimensions and weights of the RoofVent

RH 16

RC 18

RHC 20

R 22

7 Transport and installation 29

7.1 Delivery 29

7.2 Requirements for the installation site 31

7.3 Installation 32

7.4 Connecting air ducts and Air-Injectors 38

7.5 Hydraulic installation 39

7.6 Condensate connection 40

7.7 Electrical installation 42

8 Operation 43

8.1 Initial commissioning 43

8.2 Operation 43

9 Maintenance and repair 44

9.1 Safety 44

9.2 Maintenance 45

9.3 Repair 47

10 Dismantling 47

11 Disposal 47

6 Options 24

6.1 Oil-proof design 24

6.2 Design for high extract air humidity 24

6.3 Corrosion-protected design 24

6.4 Corrosion-protected design for high extract air humidity 24

6.5 Connection module 25

6.6 Design with 2 Air-Injectors 25

6.7 Design without Air-Injector 25

6.8 Paint nish of below-roof unit 25

6.9 Fresh air silencer 26

6.10 Exhaust air silencer 26

6.11 Supply air and extract air silencers 27

6.12 Hydraulic assembly diverting system 27

6.13 Mixing valve 27

6.14 Condensate pump 27

6.15 Socket 28

6.16 Energy monitoring 28

6.17 Return temperature sensor 28

6.18 Pump control for mixing or injection system 28

Art.No. 4 214 745-en-04 / Page 2

RoofVent® RH | RC | RHC | R

Use

1 Use

1.1 Intended use

RoofVent® units are supply and extract air handling units for use in tall, single-oor halls. They have the following functions:

■ Fresh air supply

■ Extract air removal

■ Energy recovery with highly efcient plate heat exchanger

■ Filtering of the fresh air and the extract air

■ Air distribution with adjustable Air-Injector

Additional functions depending on unit type:

■ Heating (with connection to a hot water supply)

■ Cooling (with connection to a water chiller)

A system usually consists of several RoofVent uted throughout the hall roof. The individual units are regulated individually and controlled based on zones. The system exibly adjusts to local requirements.

RoofVent relating to environmentally friendly design of ventilation systems. They are systems of the 'non-residential ventilation unit' (NRVU) and 'bidirectional ventilation unit' (BVU) type.

Intended use also includes compliance with the operating instructions. Any usage over and above this use is considered to be not as intended. The manufacturer can accept no liability for damage resulting from improper use.

units comply with all the requirements of the Ecodesign Directive

units. These are installed distrib-

1.2 User group

The units are only allowed to be installed, operated and maintained by authorised and instructed personnel who are well acquainted with the units and are informed about possible dangers. The operating instructions are for operating engineers and technicians as well as specialists in building, heating and ventilation technology.

Art.No. 4 214 745-en-04 / Page 3

RoofVent® RH | RC | RHC | R

Safety

2 Safety

2.1 Symbols

Caution

This symbol warns against risk of injury. Please heed all instructions designated by this symbol to prevent injuries and/or death.

Attention

This symbol warns against property damage. Please heed the respective instructions to prevent risk of damage to the unit and its functions.

Notice

This symbol denotes information about the economic use of the equipment or special tips.

2.2 Operational safety

The unit is built to conform to the state-of-the-art and is operationally safe. Despite every precaution being taken, potential and not immediately obvious risks always remain, for example:

■ Dangers when working with the electrical system

■ Parts (e.g. tools) can fall down below when working on the ventilation unit.

■ Dangers from working on the roof

■ Damage to devices or components due to lightning

■ Malfunctions as a result of defective parts

■ Hazards from hot water when working on the hot water supply

■ Water penetration through the roof unit if the access panels are not closed

correctly

Therefore:

■ Please read the operating instructions before unpacking, installing, commis-

sioning and before maintaining the equipment.

■ Store the operating instructions so that they are easily accessible.

■ Observe any attached information and warning signs.

■ Immediately replace damaged or removed informational and warning signs.

■ Follow the local safety and accident prevention regulations at all times.

■ When working in the unit, take precautions against unprotected, sharp metal

edges.

■ The unit may only be installed, operated and serviced by authorised, trained

and instructed skilled personnel:

– Specialists as dened by these operating instructions are those persons

who, based on their training, knowledge and experience as well as their knowledge of the relevant regulations and guidelines, can carry out the work assigned to them and recognise potential hazards.

■ Unauthorised reconguration or modication of the unit is not permitted.

Art.No. 4 214 745-en-04 / Page 4

RoofVent® RH | RC | RHC | R

Construction and operation

3 Construction and operation

3.1 Construction

RoofVent® units consist of the following components:

■ Roof unit with energy recovery

■ Below-roof unit

The components are bolted together and can be dismantled. The connections of the coil are located under the extract air grille as standard. The heating/cooling section can also be mounted on the connection module turned round.

3.2 Air distribution with the Air-Injector

The patented air distributor – called the Air-Injector – is the core element. The air discharge angle is set by means of the innitely variable guide vanes. It depends on the air ow rate, the mounting height and the temperature difference between the supply air and room air. The air is therefore blown into the room vertically downward, conically or horizontally. This ensures that:

■ with each RoofVent

unit a large area of the hall can be reached,

■ the occupied area is draught-free,

■ the temperature stratication in the room is reduced, thus saving energy.

Roof unit with energy recovery

Below-roof unit

a Connection module b Heating section (RoofVent c Cooling section (RoofVent d Air-Injector

Fig. 1: Components of RoofVent® units

RH, RHC only)

RC, RHC only)

Art.No. 4 214 745-en-04 / Page 5

RoofVent® RH | RC | RHC | R

Construction and operation

Condensate separator

(RoofVent

RC, RHC only)

Cooling coil

(RoofVent

RC, RHC only)

Heating coil

(RoofVent

RH, RHC only)

Access panel, coil

Access panel, connection box

Supply air fans

Supply air access door

Control block

Exhaust air access door

Exhaust air fans

Plate heat exchanger with bypass (for performance control and as recirculation bypass)

Fresh air damper with actuator

Bypass damper with actuator

Fresh air lter

Fresh air access door

Extract air and recirculation dampers with actuator

Extract air access door

Extract air lter

Extract air grille

Frost controller

(RoofVent

RH, RC, RHC only)

Condensate connection

(RoofVent

RC, RHC only)

Actuator of the Air-Injector

Fig. 2: Structure of the RoofVent® units

Art.No. 4 214 745-en-04 / Page 6

RoofVent® RH | RC | RHC | R

Construction and operation

3.3 Function diagram

Fresh air

Fresh air lter with differential pressure switch

Temperature sensor air inlet ER (optional)

Bypass damper with actuator

Exhaust air temperature sensor

Exhaust air fans with ow rate monitoring

Exhaust air

Fresh air damper with actuator

Plate heat exchanger

Extract air temperature sensor

Extract air damper with actuator

Recirculation damper (opposed to the extract air damper)

Fig. 3: Function diagram

Temperature sensor air outlet ER (optional)

Extract air lter with differential pressure switch

Supply air fans with ow rate monitoring

Extract air

Heating coil (RoofVent® RH, RHC only)

Frost controller (RoofVent® RH, RC, RHC only)

Cooling coil (RoofVent® RC, RHC only)

Condensate separator (RoofVent® RC, RHC only)

Air-Injector with actuator

Supply air sensor

Supply air

Art.No. 4 214 745-en-04 / Page 7

RoofVent® RH | RC | RHC | R

Construction and operation

3.4 Operating modes

The units have the following operating modes:

■ Ventilation

■ Ventilation (reduced)

■ Air quality

■ Recirculation (

The TopTronic

depending on unit type

C control system regulates these operating modes automatically for each control zone in accordance with the specications in the calendar. The following points also apply:

■ The operating mode of a control zone can be switched over manually.

■ Each RoofVent

unit can operate individually in a local operating mode: Off,

Recirculation, Supply air, Exhaust air, Ventilation.

Code Operating mode Description

VE Ventilation

The unit blows fresh air into the room and exhausts polluted room air. The room temperature set value day is active. Depending on the temperature conditions, the system continuously controls:

■ the energy recovery

■ the heating/cooling

VEL Ventilation (reduced)

As VE, but the unit only operates with the set minimum values for the supply and exhaust air volumes

■ Exhaust air

■ Supply air

■ Standby

)

■ Forced heating

Supply air fan ................... on

Exhaust air fan ................. on

Energy recovery ............... 0-100 %

Extract air damper ............ open

Recirculation damper ....... closed

Heating/cooling ................ 0-100 %

*) Adjustable ow rate

Supply air fan ................... MIN

Exhaust air fan ................. MIN

Energy recovery ............... 0-100 %

Extract air damper ............ open

Recirculation damper ....... closed

Heating/cooling ................ 0-100 %

AQ Air quality

This is the operating mode for demand-controlled ventilation of the room. The room temperature set value day is active. Depending on the temperature conditions, the system continuously controls:

■ the energy recovery

■ the heating/cooling

Depending on the room air quality, the system operates in one of the following operating states:

AQ_REC

■ Air quality Recirculation:

When air quality is good, the unit heats or cools in recirculation operation.

AQ_ECO

■ Air quality Mixed air:

When ventilation requirements are medium, the unit heats or cools in mixed air operation. The supply/exhaust air volume is based on the air quality.

AQ_VE

■ Air quality Ventilation:

When ventilation requirements are high, the unit heats or cools in pure ventilation operation. The supply/exhaust air volume is based on the air quality.

Like REC

Supply air fan ................... MIN-MAX

Exhaust air fan ................. MIN-MAX

Energy recovery ............... 0-100 %

Extract air damper ............ 50 %

Recirculation damper ....... 50 %

Heating/cooling ................ 0-100 %

Supply air fan ................... MIN-MAX

Exhaust air fan ................. MIN-MAX

Energy recovery ............... 0-100 %

Extract air damper ............ open

Recirculation damper ....... closed

Heating/cooling ................ 0-100 %

Art.No. 4 214 745-en-04 / Page 8

RoofVent® RH | RC | RHC | R

Construction and operation

Code Operating mode Description

REC Recirculation

On/Off recirculation operation with TempTronic algorithm: During heat or cool demand, the unit draws in room air, heats or cools it and blows it back into the room. The room temperature set value day is active. The

ow rate is controlled in 2 stages.

EA Exhaust air

The unit extracts spent room air. There is no room temperature control.

Unltered fresh air enters the room through open windows and doors or

another system provides air supply.

SA Supply air

The unit blows fresh air into the room. The room temperature set value day is active. Depending on the temperature conditions, the system controls the heating/cooling. Spent room air passes through open windows and doors or another system provides extraction.

Supply air fan ................... 0 / Speed 1 / Speed 2

Exhaust air fan ................. off

Energy recovery ............... 0 %

Extract air damper ............ closed

Recirculation damper ....... open

Heating/cooling ................ on

*) Depending on heat or cool demand

Supply air fan ................... Off

Exhaust air fan ................. on

Energy recovery ............... 0 %

Extract air damper ............ open

Recirculation damper ....... closed

Heating/cooling ................ off

*) Adjustable ow rate

Supply air fan ................... on

Exhaust air fan ................. off

Energy recovery ............... 0 %

Extract air damper ............ open

Recirculation damper ....... closed

Heating/cooling ................ 0-100 %

*) Adjustable ow rate **) Fresh air and bypass dampers are open

**)

ST Standby

The unit is normally switched off. The following functions remain active:

CPR

■ Cooling protection:

If the room temperature drops below the set value for cooling protection, the unit heats up the room in recirculation operation.

OPR

■ Overheating protection:

If the room temperature rises above the set value for overheating protection, the unit cools down the room in recirculation operation. If the temperatures also permit fresh air cooling, the units automatically switches to night cooling (NCS) to save energy.

NCS

■ Night cooling:

If the room temperature exceeds the set value for night cooling and the current fresh air temperature permits it, the unit blows cool fresh air into the room and extracts warmer room air.

L_OFF Off (local operating mode)

The unit is switched off. Frost protection remains active.

– Forced heating

The unit draws in room air, warms it and blows it back into the room. Forced heating is activated by inserting a wire jumper in the control block. For example, it is suitable for heating the hall before taking the control system into operation or if the controller fails during the heating period. Connecting a room thermostat makes it possible to specify a room temperature set value.

Supply air fan ................... MAX

Exhaust air fan ................. off

Energy recovery ............... 0 %

Extract air damper ............ closed

Recirculation damper ....... open

Heating/cooling ................ on

Supply air fan ................... on

Exhaust air fan ................. on

Energy recovery ............... 0 %

Extract air damper ............ open

Recirculation damper ....... closed

Heating/cooling ................ off

*) Adjustable ow rate

Supply air fan ................... Off

Exhaust air fan ................. off

Energy recovery ............... 0 %

Extract air damper ............ closed

Recirculation damper ....... open

Heating/cooling ................ off

Supply air fan ................... MAX

Exhaust air fan ................. off

Energy recovery ............... 0 %

Extract air damper ............ closed

Recirculation damper ....... open

Heating ............................ on

Table 1: Operating modes of the RoofVent® units

Art.No. 4 214 745-en-04 / Page 9

RoofVent® RH | RC | RHC | R

Unit type reference

4 Unit type reference

RHC - 9 B C - RX / ST . -- / V0 . D1 . LU / AF . SI / Y . KP . -- . SD / TC . EM . PH . RF / S---

Unit type

RoofVent

Unit size

6 or 9

Heating section

- without heating section B with coil type B C with coil type C D with coil type D

Heating/cooling section

- without heating/cooling section C with coil type C D with coil type D

Heat recovery

RX Temperature efciency ErP 2018

Design

ST Standard OE Oil-proof design HA Design for high extract air humidity KG Corrosion-protected design KA Corrosion-protected design for high extract air humidity

RH | RC | RHC | R

Reserve

Connection module

V0 Standard V1 Length + 250 mm V2 Length + 500 mm V3 Length + 1000 mm

Air outlet

D1 Design with 1 Air-Injector D2 Design with 2 Air-Injectors D0 Design without Air-Injector

Paint nish

- without LU Paint nish of below-roof unit

Art.No. 4 214 745-en-04 / Page 10

RoofVent® RH | RC | RHC | R

Unit type reference

RHC - 9 B C - RX / ST . -- / V0 . D1 . LU / AF . SI / Y . KP . -- . SD / TC . EM . PH . RF / S---

Silencers outside

- without A- Fresh air silencer

-F Exhaust air silencer AF Fresh air and exhaust air silencer

Silencers inside

- without SI Supply air and extract air silencer

Hydraulics

- without Y Hydraulic assembly diverting system M Mixing valve

Condensate pump

- without KP Condensate pump

Socket

- without SD Socket in the unit CH Socket in the unit Switzerland

Control system

TC TopTronic

Energy monitoring

- without EM Energy monitoring

Pump control

- without PH Heating pump PK Heating or cooling pump PP Heating pump and cooling pump

Return temperature sensor

- without RF Return temperature sensor

Special project

Marking for customer-specic adaptations

Table 2: Unit type reference

Art.No. 4 214 745-en-04 / Page 11

RoofVent® RH | RC | RHC | R

Technical data

5 Technical data

5.1 Application limits

Extract air temperature max. 50 °C

Extract air relative humidity max. 60 %

Moisture content of extract air max. 12.5 g/kg

Fresh air temperature min. -30 °C

Temperature of the heating medium max. 90 °C

Pressure of the heating/cooling medium max. 800 kPa

Supply air temperature max. 60 °C

Air ow rate Size 6:

Size 9:

Condensate quantity Size 6:

Size 9:

Table 3: Application limits

min. min.

max. max.

3100 5000

150

m³/h m³/h

kg/h kg/h

5.2 Heat recovery system (HRS)

Unit size 6 9

Temperature efciency, dry % 77 78

Temperature efciency, wet % 89 90

Table 4: Thermal transfer level of the plate heat exchanger

5.3 Air filtration

Filter Fresh air Extract air

Class acc. to ISO 16890 ePM

Class acc. to EN 779 F7 M5

Factory setting of differential pressure switches 250 Pa 250 Pa

Table 5: Air ltration

55 % ePM10 65 %

Art.No. 4 214 745-en-04 / Page 12

RoofVent® RH | RC | RHC | R

Technical data

5.4 Flow rate, product parameters

Unit size 6 9

Nominal air ow rate m³/h 5500 8000

m³/s 1.53 2.22

Floor area reached m² 480 797

Specic fan power SFP

Face velocity m/s 2.69 2.98

Static efciency of the fans % 62 63

Internal pressure drop of ventilation components

Maximum leakage rate

int

Fresh air/supply air Pa 270 268

Extract air/exhaust air Pa 300 316

External % 0.45 0.25

Internal % 1.50 1.20

W/(m³/s)

920 940

Unit type RH-6 RH-9

Coil type B C B C D

Nominal external pressure

Effective electric power input kW 2.01 2.09 3.10 3.24 3.34

Unit type RC-6 RC-9

Coil type C C D

Nominal external pressure

Effective electric power input kW 2.18 3.38 3.49

Unit type RHC-6 RHC-9

Coil type BC CC BC BD CC CD DC DD

Nominal external pressure

Effective electric power input kW 2.27 2.33 2.90 3.60 3.63 3.74 3.74 3.98

Unit type R-6 R-9

Nominal external pressure

Effective electric power input kW 1.93 2.99

Supply air Pa 220 180 300 260 230

Extract air Pa 190 190 300 300 300

Supply air Pa 110 220 190

Extract air Pa 190 300 300

Supply air Pa 80 50 170 140 130 100 100 40

Extract air Pa 190 190 300 300 300 300 300 300

Supply air Pa 260 330

Extract air Pa 190 300

Table 6: Technical data of the RoofVent® units

Art.No. 4 214 745-en-04 / Page 13

RoofVent® RH | RC | RHC | R

Technical data

5.5 Heat output

Unit Q Q

max

∆p

Size Type kW kW m °C kPa l/h

B 30.3 19.7 16.0 28.7 5 1300

C 50.0 39.5 11.6 39.3 6 2150

B 43.2 28.8 16.4 28.7 4 1856

C 73.8 59.5 11.7 40.1 6 3172

D 91.0 76.6 10.5 46.4 6 3908

Legend: Type = Type of coil

Q = Coil heat output

= Output to cover fabric heat losses

= Maximum mounting height

max

= Supply air temperature

= Water pressure drop

∆p

= Water quantity

Reference: Fresh air: -15 °C

Room air: 18 °C Extract air: 20 °C / 20 % rel. humidity Heating medium: 60/40 °C

Fig. 4: Heat output of the RoofVent

RH / RC / RHC

Art.No. 4 214 745-en-04 / Page 14

RoofVent® RH | RC | RHC | R

Technical data

5.6 Cooling capacities

Unit Q

sen

tot

∆p

Size Type kW kW kW °C kPa l/h kg/h

6 C 24.5 34.5 19.1 15.7 39 4943 14.7

Legend: Type = Type of coil

Reference: Fresh air: 32 °C / 40 % rel. humidity

Fig. 5: Cooling capacity of RoofVent

C 36.0 49.6 28.2 15.5 36 7105 20.0

D 44.2 66.6 36.4 12.5 40 9542 33.0

= Sensible cooling capacity

sen

= Total cooling capacity

tot

= Output for coverage of transmission sensible gains (→ sensible cooling load)

= Supply air temperature

= Water pressure drop

∆p

= Water quantity

= Condensate quantity

Room air: 26 °C Extract air: 28 °C / 50 % rel. humidity Cooling medium: 6/12 °C

RC / RHC

Art.No. 4 214 745-en-04 / Page 15

2380

RoofVent® RH | RC | RHC | R

Technical data

5.7 Dimensions and weights of the RoofVent® RH

2080

200

1950

G310

20077

Roof unit with energy recovery

Connection module

Access panel, coil

Access panel, connection box

Fig. 6: Dimensional drawing for RoofVent® RH (dimensions in mm)

Heating section

Air-Injector

Return

Flow

Art.No. 4 214 745-en-04 / Page 16

RoofVent® RH | RC | RHC | R

Technical data

Unit type RH-6 RH-9

A mm 1400 1750

B mm 1040 1240

C mm 848 1048

F mm 410 450

G mm 470 670

H mm 270 300

S mm 490 570

T mm 500 630

U mm 767 937

V mm 900 1100

Connection module V0 V1 V2 V3 V0 V1 V2 V3

D mm 940 1190 1440 1940 980 1230 1480 1980

E mm 530 780 1030 1530 530 780 1030 1530

W mm 1700 1950 2200 2700 1850 2100 2350 2850

Table 7: Dimensions of the RoofVent® RH

Unit type RH-6B RH-6 RH-9B RH-9C RH-9D

I mm 78 78 78 78 95

J mm 101 101 111 111 102

K mm 758 758 882 882 882

L (internal thread) " Rp 1¼ Rp 1¼ Rp 1½ Rp 1½ Rp 2

Water content of the coil l 3.1 6.2 4.7 9.4 14.2

Table 8: Dimensions for hydraulic connection

Unit type RH-6B RH-6 RH-9B RH-9C RH-9D

Total kg 842 849 1094 1104 1123

Roof unit kg 700 700 900 900 900

Below-roof unit kg 142 149 194 204 223

Air-Injector kg 37 37 56 56 56

Heating section kg 30 37 44 54 73

Connection module V0 kg 75 94

Additional weight V1 kg + 11 + 13

Additional weight V2 kg + 22 + 26

Additional weight V3 kg + 44 + 52

Table 9: Weights of the RoofVent® RH

Art.No. 4 214 745-en-04 / Page 17

2380

RoofVent® RH | RC | RHC | R

Technical data

5.8 Dimensions and weights of the RoofVent® RC

2080

200

1950

B C

G310

20077

Roof unit with energy recovery

Connection module

Access panel, coil

Access panel, connection box

Heating/cooling section

Fig. 7: Dimensional drawing for RoofVent® RC (dimensions in mm)

Air-Injector

Return

Flow

Condensate connection G1" (external)

Art.No. 4 214 745-en-04 / Page 18

RoofVent® RH | RC | RHC | R

Technical data

Unit type RC-6 RC-9

A mm 1400 1750

B mm 1040 1240

C mm 848 1048

F mm 410 450

G mm 470 670

M mm 620 610

S mm 490 570

T mm 500 630

U mm 767 937

V mm 900 1100

Connection module V0 V1 V2 V3 V0 V1 V2 V3

D mm 940 1190 1440 1940 980 1230 1480 1980

E mm 530 780 1030 1530 530 780 1030 1530

W mm 2050 2300 2550 3050 2160 2410 2660 3160

Table 10: Dimensions of the RoofVent® RC

Unit type RC-6-C RC-9-C RC-9-D

N mm 78 78 95

O mm 123 92 83

P mm 758 882 882

Q (internal thread) " Rp 1¼ Rp 1½ Rp 2

R mm 54 53 53

Water content of the coil l 6.2 9.4 14.2

Table 11: Dimensions for hydraulic connection

Unit type RC-6-C RC-9-C RC-9-D

Total kg 882 1152 1171

Roof unit kg 700 900 900

Below-roof unit kg 182 252 271

Air-Injector kg 37 56 56

Heating/cooling section kg 70 102 121

Connection module V0 kg 75 94 94

Additional weight V1 kg + 11 + 11 + 11

Additional weight V2 kg + 22 + 22 + 22

Additional weight V3 kg + 44 + 44 + 44

Table 12: Weights of the RoofVent® RC

Art.No. 4 214 745-en-04 / Page 19

2380

RoofVent® RH | RC | RHC | R

Technical data

5.9 Dimensions and weights of the RoofVent® RHC

2080

200

310

1950

B C

20077

Roof unit with energy recovery

Connection module

Access panel, coil

Access panel, connection box

Heating section

Cooling section

Fig. 8: Dimensional drawing for RoofVent® RHC (dimensions in mm)

Air-Injector

Heating circuit return

Heating circuit ow

Cooling circuit return

Cooling circuit ow

Condensate connection G1" (external)

Art.No. 4 214 745-en-04 / Page 20

RoofVent® RH | RC | RHC | R

Technical data

Unit type RHC-6 RHC-9

A mm 1400 1750 B mm 1040 1240 C mm 848 1048 F mm 410 450 G mm 470 670 H mm 270 300

M mm 620 610

S mm 490 570 T mm 500 630 U mm 767 937 V mm 900 1100

Connection module V0 V1 V2 V3 V0 V1 V2 V3

D mm 940 1190 1440 1940 980 1230 1480 1980 E mm 530 780 1030 1530 530 780 1030 1530

W mm 2320 2570 2820 3320 2460 2710 2960 3460

Table 13: Dimensions of the RoofVent® RHC

Size RHC-6 RHC-9 Type of heating coil B C B C D

I mm 78 78 78 78 95

J mm 101 101 111 111 102 K mm 758 758 882 882 882

L (internal thread) " Rp 1¼ Rp 1¼ Rp 1½ Rp 1½ Rp 2 Water content of the coil l 3.1 6.2 4.7 9.4 14.2

Table 14: Dimensions for hydraulic connection of the heating section

Size RHC-6 RHC-9 Type of the cooling coil C C D

N mm 78 78 95 O mm 123 92 83

P mm 758 882 882 Q (internal thread) " Rp 1¼ Rp 1½ Rp 2 R mm 54 53 53 Water content of the coil l 6.2 9.4 14.2

Table 15: Dimensions for hydraulic connection of the cooling section

Unit type RHC-6BC RHC-6CC RHC-9BC RHC-9BD RHC-9CC RHC-9CD RHC-9DC RHC-9DD Total kg 912 919 1196 1215 1206 1225 1225 1244

Roof unit kg 700 700 900 900 900 900 900 900 Below-roof unit kg 212 219 296 315 306 325 325 344 Air-Injector kg 37 37 56 56 56 56 56 56 Heating section kg 30 37 44 44 54 54 73 73 Cooling section kg 70 70 102 121 102 121 102 121 Connection module V0 kg 75 94

Additional weight V1 kg + 11 + 13 Additional weight V2 kg + 22 + 26 Additional weight V3 kg + 44 + 52

Table 16: Weights of the RoofVent® RHC

Art.No. 4 214 745-en-04 / Page 21

2380

RoofVent® RH | RC | RHC | R

Technical data

5.10 Dimensions and weights of the RoofVent® R

2080

1950

B C

20077

Roof unit with energy recovery

Connection module

Fig. 9: Dimensional drawing for RoofVent® R (dimensions in mm)

Access panel, connection box

Air-Injector

Art.No. 4 214 745-en-04 / Page 22

RoofVent® RH | RC | RHC | R

Technical data

Unit type R-6 R-9

A mm 1400 1750

B mm 1040 1240

C mm 848 1048

F mm 410 450

S mm 490 570

T mm 500 630

U mm 767 937

V mm 900 1100

Connection module V0 V1 V2 V3 V0 V1 V2 V3

D mm 940 1190 1440 1940 980 1230 1480 1980

E mm 530 780 1030 1530 530 780 1030 1530

W mm 1430 1680 1930 2430 1550 1800 2050 2550

Table 17: Dimensions of the RoofVent® R

Unit type R-6 R-9

Total kg 812 1050

Roof unit kg 700 900

Below-roof unit kg 112 150

Air-Injector kg 37 56

Connection module V0 kg 75 94

Additional weight V1 kg + 11 + 13

Additional weight V2 kg + 22 + 26

Additional weight V3 kg + 44 + 52

Table 18: Weights of the RoofVent® R

Art.No. 4 214 745-en-04 / Page 23

RoofVent® RH | RC | RHC | R

Options

6 Options

6.1 Oil-proof design

RoofVent® units in oil-proof design are suitable for use in applications with oil-saturated extract air. The maximum oil load in the extract air is 10 mg/m³ air.

Attention

Danger of damaging the units due to supply air containing oil. Do not operate the units in 'Recirculation' mode (REC) unless there is no oil pollution in the room.

Notice

In the 'Air quality' operating mode RoofVent always work in pure ventilation operation (AQ_VE). Recirculation operation (AQ_REC) and mixed air operation (AQ_ECO) are locked.

units in oil-proof design

6.2 Design for high extract air humidity

RoofVent® units in the design for high extract air humidity are suitable for use in applications in which there is humidication in the room (increase in humidity in the room by more than 2 g/kg), for example applications in paper and electronics industries.

Attention

Danger of damaging the units due to ice formation. Do not operate the units unless icing protection is provided. It is essential to have a humidity sensor for this.

6.3 Corrosion-protected design

RoofVent® units in corrosion-protected design are suitable for use in applications with an increased corrosion risk, for example applications in the foot industry.

6.4 Corrosion-protected design for high extract air humidity

RoofVent® units in corrosion-protected design for high extract air humidity are suitable for use in applications with an increased corrosion risk and high increase in humidity in the room, for example applications in a car wash.

Attention

Danger of damaging the units due to ice formation. Do not operate the units unless icing protection is provided. It is essential to have a humidity sensor for this.

Art.No. 4 214 745-en-04 / Page 24

RoofVent® RH | RC | RHC | R

Options

6.5 Connection module

The connection module is available in 4 lengths for adapting the RoofVent® unit to local conditions.

6.6 Design with 2 Air-Injectors

A supply air duct can be connected to the RoofVent® unit for distributing the supply air over a very wide area. 2 Air-Injectors can be installed on this. The supply air duct and the cabling must be provided by the client.

Fig. 10: RoofVent® unit with supply air duct and 2 Air-Injectors

6.7 Design without Air-Injector

RoofVent® units in the design without Air-Injector are suitable for connecting to an air distribution system supplied by the client.

Fig. 11: Connection to an air distribution system supplied by the client

6.8 Paint finish of below-roof unit

The entire below-roof unit is painted in any colour. If the below-roof unit is equipped with a supply air silencer, this is also painted.

Art.No. 4 214 745-en-04 / Page 25

RoofVent® RH | RC | RHC | R

Options

6.9 Fresh air silencer

The fresh air silencer reduces noise emissions from RoofVent® units on the fresh air side. It consists of an aluminium casing with a bird screen and acoustic insulation lining and is congured as an add-on part for the roof unit which can be folded downwards.

Size 6 9

L mm 625 625

B mm 1280 1630

H mm 650 650

Weight kg 30 42

Pressure drop Pa 10 10

Table 19: Technical data of the fresh air silencer

6.10 Exhaust air silencer

The exhaust air silencer reduces noise emissions from RoofVent® units on the exhaust air side. It consists of an aluminium casing with a bird screen and sound attenuation splitters and is congured as an add-on part for the roof unit which can be folded downwards.

Size 6 9

L mm 625 625

B mm 1280 1630

H mm 650 650

Weight kg 52 68

Pressure drop Pa 50 53

Table 20: Technical data of the exhaust air silencer

Art.No. 4 214 745-en-04 / Page 26

RoofVent® RH | RC | RHC | R

Options

6.11 Supply air and extract air silencers

Supply air and extract air silencers reduce the noise from RoofVent® units within the room. The supply air silencer is designed as a separated component and is installed above the Air-Injector. The extract air silencer consists of acoustic insulation lining in the connection module.

Size 6 9

Weight kg 53 80

Supply air pressure drop Pa 22 26

Extract air pressure drop Pa 0 0

500

Table 21: Technical data of the supply air and extract air silencers

6.12 Hydraulic assembly diverting system

An assembly for the hydraulic diverting system is included in the delivery. It consists of the following components:

■ Automatic air vent

■ Coil screw joint

■ Control valve

■ Distributor circuit screw joint

■ Flow

■ Mixing valve

■ Ball valve

■ Return

6.13 Mixing valve

Mixing valves which are optimally matched to the units are available for easy installation of RoofVent

■ 3-way mixing valve with modulating rotary actuator (run time 9 s)

■ Flow characteristic:

– Equal percentage control path – Linear bypass

■ Integrated position control and response

units. They have the following specications:

6.14 Condensate pump

The condensate pump is installed directly under the condensate drain connection; the supplied container is prepared for installation on the Air-Injector. It pumps the condensate through a exible hose to a delivery head of 3 m, thus enabling discharge of the condensate

■ through waste water pipes directly below the ceiling,

■ onto the roof.

Art.No. 4 214 745-en-04 / Page 27

RoofVent® RH | RC | RHC | R

Options

6.15 Socket

For maintenance work, a socket (1-phase, 230 V AC, 50 Hz) can be installed in the roof unit, next to the control block.

6.16 Energy monitoring

Energy monitoring makes it possible to display the energy saved by heat and cool recovery. For this purpose, 2 additional temperature sensors are installed in the RoofVent heat exchanger.

6.17 Return temperature sensor

units; they record the air inlet and air outlet temperatures of the plate

The return temperature sensor monitors the return temperature of the heating medium. If necessary, it triggers frost pre-control at the heating valve to prevent the system possibly being shut down due to frost.

6.18 Pump control for mixing or injection system

Instead of the diverting system, an injection or mixing circuit can also be installed in the load circuit. Please note the following:

■ Not only the mixing valves but also the pumps in the load circuit are controlled

directly by the control block.

■ Terminals for wiring the mixing valves and the pumps in the load circuit are

located in the connection box.

■ Make sure that valves and pumps which meet the following requirements are

provided on site.

Requirements for mixing valves

■ Use 3-way mixing valves with the following ow characteristics:

– Equal percentage control path – Linear bypass

■ The valve authority must be ≥ 0.5.

■ The maximum run time of the valve actuator is 45 s.

■ The valve actuator must be continuous, i.e. the stroke changes in proportion to

the control voltage (DC 2…10 V).

■ The valve actuator must be designed with a position response (0...10 V DC or

2…10 V DC).

■ The maximum power consumption is 20 VA.

■ Install the valve close to the unit (max. distance 2 m).

Requirements for pumps Voltage ________ 230 V AC Current ________up to 4.0 A

Art.No. 4 214 745-en-04 / Page 28

RoofVent® RH | RC | RHC | R

Transport and installation

7 Transport and installation

Caution

Risk of injury from incorrect handling. Transport, assembly and installation work may only be performed by specialists. Observe safety and accident prevention regulations.

7.1 Delivery

■ The scope of delivery includes:

– RoofVent

(roof unit, below-roof unit)

– Zone control panel – Accessories – Optional components

Associated parts are labelled with the same unit number and serial number. Depending on the unit size, the below-roof unit can also be delivered in multiple parts.

Supply air access door

Pallet

Extract air access door

Extract air grille

Zone control panel

unit, delivered as standard in 2 parts on pallets

Fig. 12: Delivery of the components on pallets

Accessories

The following accessories are supplied separately:

■ Transport eyes for lifting the below-roof unit and the roof unit (two each,

attached to the pallet of the rst roof unit)

■ Screws for assembling the units and for xing the fan protecting plate (attached

to the pallet of the roof unit)

■ If the below-roof unit is delivered in multiple parts: Screws for assembling the

below-roof unit (behind the extract air grille)

■ Extract air lter (behind the extract air access door)

■ PG screw joint for electrical connection (behind the connection box access

panel)

■ Trap (only for RoofVent

RC, RHC; behind the extract air grille)

Art.No. 4 214 745-en-04 / Page 29

RoofVent® RH | RC | RHC | R

Transport and installation

■ Electrical diagram and 2 keys for the access doors (behind the supply air

access door)

■ Fresh air temperature sensor and room air temperature sensor (in the zone

control panel)

Options

The following optional components are supplied separately:

■ Fresh air and exhaust air silencer (on separate pallet; bolts, hinges and screws

enclosed)

■ Mixing valve (behind the extract air grille)

■ Condensate pump (behind the extract air grille)

■ Return temperature sensor (behind the extract air grille)

■ Hydraulic assembly (on separate pallet)

■ Additional room air temperature sensors, combination sensor room air quality,

temperature and humidity (in zone control panel)

■ Version with 2 Air-Injectors or without Air-Injector: A supply air temperature

sensor is enclosed behind the extract air grille.

Preparation

■ Use a forklift with a sufciently long fork to unload (at least 1.8 m).

■ Check the consignment against the delivery documents and the order conrma-

tion to ensure that it is complete. Report missing parts and any damage immediately in writing.

Art.No. 4 214 745-en-04 / Page 30

R 996

R 1045

RoofVent® RH | RC | RHC | R

Transport and installation

7.2 Requirements for the installation site

■ Make sure that the roof has sufcient load-bearing capacity and that the roof

frames correspond to the specications in the design handbook.

■ Position the units according to the system layout. In doing so, ensure that the

units are aligned to one another, the minimum and maximum distances are observed and that the correct coil connections are correctly positioned. Units must not draw in exhaust air from other units as fresh air.

■ All air inlet and air outlet openings must be freely accessible. The supply air jet

must be free to spread out unhindered.

■ The access doors in the roof unit and the access panels in the below-roof unit

must be easily accessible.

■ The Air-Injector must be easily accessible.

■ A clearance of approx. 1 m is required on the side opposite the coil connections

for below-roof unit service and maintenance purposes.

Roof unit Roof unit with silencers

90°

R 996

≥ 1015 1950 ≥ 1015

Fig. 13: Space requirements for maintenance on the roof (dimensions in mm)

90°

≥ 1100 ≥ 1100

Notice

If side access is not possible, proportionally more space is required for opening the access doors.

Size 6 9

Distance X min. m 11 13

Mounting height Y min. m 4 5

1) The maximum mounting height varies depending on the boundary conditions (for values, see table of heat outputs or calculation with the 'HK-Select' selection program)

1950

max. m 22 28

max.

m Approx.

9…25

X/2

Table 22: Minimum and maximum distances

Art.No. 4 214 745-en-04 / Page 31

RoofVent® RH | RC | RHC | R

Transport and installation

7.3 Installation

Caution

Risk of injury caused by falling load and improper handling. During installation: – Wear protective equipment (fall protection, safety helmet, safety shoes). – Do not stand under suspended loads. – Use cranes or forklifts with sufcient load-bearing capacity.

Caution

Provide suitable protective devices and make sure the units can be accessed easily. The maximum roof load of the RoofVent

units is 80 kg.

Preparation

■ The units are assembled from roof level. Make sure that the following items are

on hand for the assembly:

– Crane for installing the below-roof unit – Crane or helicopter for assembly on the roof – Lifting gear (minimum length of the lifting ropes: 2 m for the below-roof unit,

3 m for the roof unit)

– Sealing compound for the roof frame (e.g. PU foam) – Adhesive for securing screws (e.g. Loctite 243, medium strength, soluble)

■ Below-roof unit:

– Remove the below-roof unit from the packaging lm. – Remove the mounting bracket or wooden slats with which the below-roof unit

is xed to the pallet.

■ Roof unit:

– Remove the roof unit from the packaging lm. – Open the extract air access door. – Behind this, loosen what is xing the unit to pallet (2 screws). – Open the supply air access door. – Unscrew the fan protecting plate; this is only reattached when the unit is

installed on the roof.

– Behind the fan protecting plate, loosen what is xing the unit to the pallet

(2 screws).

Extract air access door

Supply air access door

Fan protecting plate

Fig. 14: The fan protecting plate is temporarily attached with 4 screws during delivery.

Art.No. 4 214 745-en-04 / Page 32

RoofVent® RH | RC | RHC | R

Transport and installation

Assembling the below-roof unit

The below-roof unit must only be assembled at the building site if it must be delivered in multiple parts due to the unit version. Proceed as follows:

■ Make sure that the correct unit components match up (observe the unit number

and RoofVent

■ Loosen the cable fastening on the connection module frame.

■ Screw in the transport eyes into the connection module frame and attach the

lifting gear.

■ Lift the connection module (if applicable, with the heating/cooling part mounted)

and rotate it into the correct position.

– The standard position of the coil connections is underneath the extract air

grille. If another orientation is required, you can mount the heating or cooling section turned round on the connection module.

serial number).

Notice

Never change the orientation of the supply air silencer (option) relating to the component above it. The correct position is marked on the unit.

■ Place the connection module on the bottom part.

■ Screw the components together; use the supplied screws and protective plugs

to do so.

Fig. 17: Transport eye in the connection module

Fig. 18: Below-roof unit screw connection with M6 x 20 screws and protective plugs (8 per component)

Connection module

Heating section

Cooling section

Supply air silencer (option)

Air-Injector

Fig. 15: The components of the below-roof unit vary depending on unit type.

Unit number

Type plate with serial number (behind the access door)

Serial number

Fig. 16: Identication of the unit components

Fig. 19: Correct orientation of the supply air silencer: For size 6: Sound attenuation splitters cross to coil connection side (or to the extract air grille for unit type R) For size 9: Sound attenuation splitters parallel to coil connection side (or to the extract air grille for unit type R)

Art.No. 4 214 745-en-04 / Page 33

RoofVent® RH | RC | RHC | R

Transport and installation

Installing fresh air and exhaust air silencers

Fresh air and exhaust air silencers (optional) are supplied separately and must be installed on the roof unit at the building site. The installation material is provided. Proceed as follows:

■ Fresh air silencer

– Lift the silencer and position it on the air inlet opening of the unit. – Insert the bolts into the hinges and insert the safety washers. – Fold the silencer up and hook the clamping lock in on both sides. – Secure the clamping locks with cotter pins.

■ Exhaust air silencer

– Lift the silencer and position it on the air outlet opening of the unit. – Insert the bolts into the hinges and insert the safety washers. – Fold the silencer up and hook the clamping lock in on both sides. – Secure the clamping locks with screws.

Fresh air silencer

Exhaust air silencer

Fig. 20: Installing fresh air and exhaust air silencers

Fresh air silencer

Fresh air lter

Fig. 21: Air inlet opening

Exhaust air fan

Exhaust air silencer

Fig. 22: Air outlet opening

Art.No. 4 214 745-en-04 / Page 34

RoofVent® RH | RC | RHC | R

Transport and installation

Installing the below-roof unit

■ Apply sealing compound to the roof frame.

■ Release the cable fastening on the below-roof unit frame and carefully insert

the cable into the unit.

Caution

Danger of damaging the unit: Dropping the cable may damage the heating or cooling coil. Put the cable down carefully.

■ Screw in the transport eyes into the connection module frame and attach the

lifting gear.

– Heed the minimum length of the lifting ropes (see Fig. 23).

■ Transport the below-roof unit to the roof frame using a helicopter or crane.

■ Turn the below-roof unit to the desired position.

■ Hang the below-roof unit into the roof frame from above.

■ Check the sealing strip on the connection module ange. Improve the seal if

necessary.

■ Remove the transport eyes.

min. 2 m

Fig. 24: Applying sealing compound to the roof frame

Fig. 23: Minimum length of the lifting ropes

Fig. 25: Hanging the below-roof unit

Art.No. 4 214 745-en-04 / Page 35

RoofVent® RH | RC | RHC | R

Transport and installation

Installing the roof unit

■ Remove the cover caps on the unit roof.

■ Screw in the transport eyes and attach the lifting gear.

– Heed the minimum length of the lifting ropes (see Fig. 26).

■ Transport the roof unit onto the roof.

■ Open the supply air access door and the exhaust air access door and position

the roof unit correctly in relation to the below-roof unit, placing the roof unit on top of the below-roof unit. The centring bolts on the connection module support the correct positioning.

■ Screw the the roof unit to the below-roof unit:

– To do this, use the supplied M6 x 30 screws. – Secure the screw connection using medium-strength, soluble adhesive (e.g.

Loctite 243).

■ Remove the transport eyes and attach the cover caps.

– Keep the transport eyes for when disassembling the units at a later date at

the end of their service life.

■ Reattach the fan protecting plate on the supply air side:

– Temporarily screw the protecting plate tight using 4 M5 x 16 screws; it must

be removed again for electrical installation later.

■ In units in oil-proof design or in the design for high extract air humidity (option)

the condensate is drained to the drip tray in the connection module.

– Join the hose in the connection module to the condensate drain of the plate

heat exchanger. Attach it using a hose clamp.

min. 3 m

Fig. 26: Minimum length of the lifting ropes

Centring bolts

M6 x 30 screws

Fig. 27: Placing and screwing the roof unit

12x

14x

Units in oil-proof design

Units in the design for high extract air humidity

Fig. 28: Connecting the condensate line

Art.No. 4 214 745-en-04 / Page 36

RoofVent® RH | RC | RHC | R

Transport and installation

■ Install the extract air lter and attach the elements using the lter brackets.

Caution

Danger of hazardous emissions from damaging the lters: – Only hold the compact lters on the black lter frame; never touch the

white lter medium.

– Replace damaged lter elements immediately.

Fig. 29: Extract air lter installed in the unit

Fig. 30: Extract air lter for oil and dust separation in units in oil-proof design

Fig. 31: Incorrect extract air lter position

Art.No. 4 214 745-en-04 / Page 37

RoofVent® RH | RC | RHC | R

Transport and installation

7.4 Connecting air ducts and Air-Injectors

Attention

Danger of damaging the units. The unit must not be subjected to the weight of the ducts. Suspend the ducts from the ceiling or support them on the oor.

Connecting the supply air duct

■ Connect RoofVent

units without Air-Injectors or with 2 Air-Injectors to a on-site

air duct.

■ For units with 2 Air-Injectors: install the two Air-Injectors on the supply air duct:

– Stick the compression tape onto the Air-Injectors. – Attach the Air-Injectors to the supply air duct with a perforated angle plate

and blind rivet nuts.

– Do not install any add-ons or ttings in the direct outlet area. The supply air

jet must be free to spread out unhindered.

850

780

3 4

1 2

Size 6 9

Fig. 32: Hole pattern for size 6 Air-Injector Fig. 33: Hole pattern for size 9 Air-Injector

X mm 850 1050

V mm 900 1100

Table 23: Connection dimensions for supply air duct (in mm)

1050

980

1 2

Compression tape (on site)

Perforated angle plate (on site)

Blind rivet nuts (on site)

Fig. 34: Installing the Air-Injectors on the supply air duct

Art.No. 4 214 745-en-04 / Page 38

RoofVent® RH | RC | RHC | R

Transport and installation

7.5 Hydraulic installation

■ Connect the heating or cooling coil in accordance with the hydraulic diagram.

■ Depending on local conditions, check whether compensators for linear expan-

sion are required for the supply and return lines and/or articulated connections are required for the units.

■ Insulate the hydraulic lines.

■ Hydraulically aligned the individual units with one another within the control

group to ensure uniform pressure admission.

Attention

Danger of damaging the units. Do not fasten any loads to the coil, e.g. by means of the ow or return lines.

Caution

Danger of malfunctions. The condensate separator in cooling units only functions while the fan is running. No coolant must be allowed to circulate in the heating/cooling coil when the unit is switched off.

Hydraulic installation of units with hydraulic assembly for diverting system (option)

■ Connect the heating or cooling coil to the on-site hydraulic network using the

hydraulic assembly,

– Install the assembly horizontally. – Mount the assembly so that its weight does not need to be absorbed by the

coil.

– Insulate the assembly.

■ Read off the default settings for the hydraulic alignment from Diagram 1. The

curves 1.0 to 4.0 correspond to the revolutions of the valve spindles of the balancing valve; they are shown on the turning knob:

0.0 .... Valve closed

4.0 .... Valve completely open

■ The coil and the hydraulic assembly are already included in the specied pres-

sure drops. Thus, only consider the pressure drops of the distributor circuit up to the screw connections.

Art.No. 4 214 745-en-04 / Page 39

1100020001000 3000 4000 5000 6000 7000 8000 9000 10000

000210001100001000900080007000600050004000300020001

2.0

2.2

2.4

2.6

3.0

4.0

RoofVent® RH | RC | RHC | R

Transport and installation

Pressure drop in kPa

042

022

002

081

061

041

021

001

042

022

002

081

061

041

021

001

1.0 1.2 1.4 1.6

1.0

1.4 1.6 1.8 2.0

1.2

1.8

2.0 2.2

6AB

2.2

Pressure drop in kPa

2.4

2.6

3.0

4.0

000500540004005300030052000200510001

2.4

2.6

3.0

4.0

0007005600060055000500540004005300030052000200510001

1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 3.0

1.0 1.2 1.4 1.6 1.8

4.0

042

022

002

081

061

041

021

001

1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6

9AB

Diagram 1: Default values for the balancing valves

3.0

4.0

000900080007000600050004000300020001

Water ow rate in l/h

7.6 Condensate connection

Condensate arising in cooling units must be removed via a condensate-proof line.

■ Install and insulate the supplied trap on the condensate connection of the unit.

■ Dimension the slope and cross-section of the condensate line so that no

condensate backow takes place.

■ Make sure that the condensate produced is drained in compliance with local

regulations.

Art.No. 4 214 745-en-04 / Page 40

Rp ¾"

163

RoofVent® RH | RC | RHC | R

Transport and installation

Condensate pump (option)

■ Remove the transport locking device from the condensate pump.

■ Install the condensate pump directly under the condensate drain connection;

the supplied container is prepared for installation on the Air-Injector.

■ Connect the condensate pump to a condensate-resistant waste water pipe. To

do this, use a hose and attach it using a hose clamp or use a pipe with an inner diameter of 9 mm.

■ Route the condensate line from the pump directly upwards.

Notice

This line must not exceed the delivery head of the pump: – head of 3 m up to a condensate quantity of max. 150 l/h – head of 4 m up to a condensate quantity of max. 70 l/h Consider the condensate quantity expected in your application. (It can be calculated with the selection program HK-Select.)

Fig. 35: Removal of the transport locking device

■ Install an odour trap at the highest point.

■ Route the line with a constant incline downwards and then vertically down-

wards, and if possible down to below the condensate pump. This will create a siphon effect and thus improve the effectiveness of the condensate pump.

■ Ensure that the condensate produced is drained in compliance with local

regulations.

Units in oil-proof design / in the design for high extract air humidity (option)

■ Install an oil/condensate drain with trap in accordance with the local provisions

to remove these types of emulsions.

Fig. 36: Installation on the Air-Injector

Fig. 37: Connection of the condensate pump

Return temperature sensor (option)

■ Install the return temperature sensor on the return line, directly after the screw

connection.

■ Attach the sensor with the clamping band.

■ Insulate the sensor.

Fig. 38: Dimensional drawing for oil/condensate drain (in mm) for oil-proof design and design for high extract air humidity

Fig. 39: Return temperature sensor

Art.No. 4 214 745-en-04 / Page 41

RoofVent® RH | RC | RHC | R

Transport and installation

7.7 Electrical installation

Caution

Danger from electric current. The electrical installation is to be carried out only by a qualied electrician.

Please note the following:

■ Observe all relevant regulations (e.g. EN 60204-1).

■ Choose the dimensions of the cable cross sections in line with the applicable

regulations.

■ Carry out the electrical installation according to the wiring diagram.

■ Route signal and bus lines separately from mains cables.

■ Make sure the lightning protection system for the units or for the entire building

is planned and carried out by professionals.

■ Provide overload protection equipment on site in the mains connection line of

the zone control panel.

■ Secure all connections against working loose.

Proceed as follows:

■ Connect the the connection box in the below-roof unit to the control block in the

roof unit:

– Unscrew the fan protecting plate. – Pull out upwards the laced wiring harness from the connection module and

fasten it using a cable bushing and a cable clamp.

– Connect the cable to the control block according to wiring diagram. – Screw the fan protecting plate tightly again. To do this, use the supplied M5 x

16 screws (total of 20 pieces).

■ Connect the power supply to the connection box.

■ Connect the zone bus to the connection box.

■ Connect the unit frame with the foundation earth electrode and attach an

earthing label.

■ Wire up the actuator Air-Injector, frost controller and supply air temperature

sensor to the connection box.

■ Wire up the mixing valves to the connection box.

■ The room air sensor and the fresh air temperature sensor are supplied loose in

the control panel:

– Install the room air temperature sensor at a representative position in the

occupied area at a height of about 1.5 m. Its measured values must not be distorted by the presence of sources of heat or cold (machines, direct sunlight, windows, doors, etc.).

– Install the fresh air temperature sensor at least 3 m above the ground on a

north-facing wall, so that it is protected from direct sunlight. Provide cover for the sensor and thermally insulate it from the building.

Plug connection to the control block

Connections for lightning arresters

Cable duct

Connection box

Power supply

Zone bus

Frost controller

Actuator Air-Injector

Supply air sensor

Fig. 40: Electrical installation

Options:

■ Wire up the condensate pump to the connection box.

■ Wire up the return temperature sensor to the connection box.

■ For injection system: Wire up the pump and valve to the connection box.

■ For units with 2 Air-Injectors: Wire up the actuators of the vortex air distributors

to the connection box.

■ Version with 2 Air-Injectors or without Air-Injector: Install the enclosed supply air

temperature sensor in the supply air duct and wire it up to the connection box.

Art.No. 4 214 745-en-04 / Page 42

RoofVent® RH | RC | RHC | R

Operation

8 Operation

8.1 Initial commissioning

Caution

Risk of damage to property as a result of performing initial commissioning on your own authority. Initial commissioning must be performed by the manufacturer’s customer service technicians .

Preparing for initial commissioning:

Checklist:

■ Have all the media connections been made (electric cabling, water piping,

condensate drain and air duct connections)?

■ Is the heating medium or cooling medium available?

■ Are the hydraulics aligned and balanced?

■ Are all the control components installed and wired?

■ Are all of the respective trade groups (installer, electrician, etc.) present at the

scheduled time?

■ Are the system operating personnel present for training at the scheduled time?

8.2 Operation

The system runs fully automatically depending on the programmed operating times and temperature conditions.

■ Observe the operating instructions for the control system.

■ Check alarm displays daily.

■ Correct changes to operating times in the programming accordingly.

■ Ensure free air outlet and unhindered dispersion of the supply air.

■ For applications with oil-saturated extract air: Do not operate the units in

'Recirculation' mode (REC) unless there is no oil pollution in the room.

■ For applications with high extract air humidity: Do not operate the units unless

icing protection is provided.

Art.No. 4 214 745-en-04 / Page 43

RoofVent® RH | RC | RHC | R

Maintenance and repair

9 Maintenance and repair

Caution

Risk of injury from incorrect work. Maintenance work must be carried out by trained personnel.

9.1 Safety

Before performing any work on the unit:

■ Turn the main switch on the unit to the ‘Off’ position and secure it against

being switched back on.

Caution

Danger from electric current. The unit controller and the service socket are still live.

■ Wait at least 3 minutes after switching the unit off.

Caution

The use of condensers can pose a danger of fatal injury from directly touching live parts even after the unit is switched off. Only open the access doors after waiting 3 minutes.

■ Observe the accident prevention regulations.

■ Observe the particular dangers involved when working on electrical systems.

■ When working in the unit, take precautions against unprotected, sharp metal

edges.

■ Immediately replace damaged or removed informational and warning signs.

■ Following maintenance work, professionally reassemble all dismantled protec-

tive devices.

■ Replacement parts must comply with the technical requirements of the unit

manufacturer. The manufacturer recommends the use of original spare parts.

Art.No. 4 214 745-en-04 / Page 44

RoofVent® RH | RC | RHC | R

Maintenance and repair

9.2 Maintenance

Maintenance schedule

Activity Interval

Changing the fresh air and extract air lter

When the lter alarm is displayed, at least annually

Comprehensively checking function; cleaning and possibly repairing the unit

Filter table

The following replacement lters are required:

Design Size Filter set Mat. no.

Standard

Corrosion-protected design

Design for high extract air humidity

Oil-proof design

Table 24: Material numbers for replacement lters

Annually by Hoval customer service

Fresh air 6046475

Extract air 6046477

Fresh air 6046474

Extract air 6046476

Fresh air 6046475

Extract air 6046478

Fresh air 6046474

Extract air 6046479

Art.No. 4 214 745-en-04 / Page 45

RoofVent® RH | RC | RHC | R

Maintenance and repair

Changing the lter

Caution

Danger of hazardous emissions from damaged lters: – Only hold the lters on the black lter frame; never touch the white lter

medium.

– Replace damaged lter elements immediately.

Caution

Crushing hazard from closing dampers. Only open the access doors when the ‘Filter change’ illuminated button is constantly illuminated (waiting period of approx. 2 min).

■ Press the ‘Filter change’ illuminated button.

■ Wait until the button is constantly illuminated.

– They button ashes whilst the speed of rotation of the fans is reduced and

the dampers close; it illuminates constantly as soon as the access doors may be opened.

■ Changing the extract air lter:

– Open the extract air access door. – Release the lter brackets and remove the lter elements. – Insert the new lter elements. When doing this, only hold the frame. – Fix the lter elements in place with the lter brackets. – Close the access door.

■ Changing the fresh air lter:

– Open the fresh air access door. Release the safety loops and fold the access

door down completely.

– Release the lter brackets and remove the lter elements. – Insert the new lter elements. When doing this, only hold the frame. – Fix the lter elements in place with the lter brackets. – Fold the access door up and reattach the safety loops. Close the access

door.

■ Changing the fresh air lter when a fresh air silencer is installed:

– Open the clamping lock of the fresh air silencer on both sides. Fold the

silencer down.

– Release the lter brackets and remove the lter elements. – Insert the new lter elements. When doing this, only hold the frame. – Fix the lter elements in place with the lter brackets. – Fold the silencer up and hook the clamping lock in on both sides. Secure the

clamping locks with cotter pins.

■ Press the ‘Filter change’ illuminated button again to set the unit back to normal

operation. The button goes out.

Filter change illuminated button (in the supply air access door)

Extract air lter

Extract air access door

Fresh air access door

Fresh air lter

Fig. 41: Changing the lter

Fig. 42: Extract air lter

Notice

If the ‘Filter change’ illuminated button is not pressed again, the unit automatically switches back to normal operation after 30 min. The button goes out.

■ Dispose of the lters in accordance with local regulations.

– The lters are fully incinerable; the disposal of used lters depends on the

contents.

Fig. 43: Fresh air lter

Fig. 44: Extract air lter for oil and dust separation in units in oil-proof design

Art.No. 4 214 745-en-04 / Page 46

RoofVent® RH | RC | RHC | R

Dismantling

9.3 Repair

If repairs are necessary, contact the manufacturer’s customer service department.

10 Dismantling

Caution

Risk of injury caused by falling load and improper handling. – Wear protective equipment (fall protection, safety helmet, safety shoes). – Do not stand under suspended loads. – Use cranes or helicopters with sufcient load-bearing capacity. – Do not lift the two-part unit in one piece.

■ Disconnect the power supply to the unit.

■ Wait at least 3 minutes after switching the unit off.

Caution

The use of condensers can pose a danger of fatal injury from directly touching live parts even after the unit is switched off. Only open the access doors after waiting 3 minutes.

■ Drain the heating or coolant circuit.

■ Dismantle all media connections.

■ Disconnect the unit from fastenings where applicable.

■ Open the supply air access door and the extract air access door.

■ Unscrew the fan protecting plate.

■ Disconnect the screw connection between the roof unit and below-roof unit.

■ Remove the cover caps on the unit roof.

■ Screw in the transport eyes and attach the lifting gear.

■ Remove the roof unit.

■ Screw in the transport eyes into the connection module frame and attach the

lifting gear.

■ Remove the below-roof unit.

11 Disposal

■ Recycle metal components.

■ Recycle plastic parts.

■ Dispose of electric and electronic parts via hazardous waste.

■ Dispose of oil-fouled parts in accordance with local regulations.

■ Dispose of the lters in accordance with local regulations.

– The lters are fully incinerable; the disposal of used lters depends on the

contents.

Art.No. 4 214 745-en-04 / Page 47

RoofVent® Operating Instructions Part. no. 4 214 745

International

Hoval Aktiengesellschaft Austrasse 70 9490 Vaduz, Liechtenstein Tel. +423 399 24 00 info.klimatechnik@hoval.com www.hoval.com

United Kingdom

Hoval Ltd. Northgate, Newark Nottinghamshire NG24 1JN Tel. 01636 672711 heatrecovery@hoval.co.uk www.hoval.co.uk

Art.No. 4 214 745-en-04 / Page 48

Hoval RoofVent RH, RoofVent RC, RoofVent RHC, RoofVent R Original Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Use

1.1 Intended use

1.2 User group

2 Safety

2.1 Symbols

2.2 Operational safety

3 Construction and operation

3.1 Construction

3.2 Air distribution with the Air-Injector

3.3 Function diagram

3.4 Operating modes

4 Unit type reference

5 Technical data

5.1 Application limits

5.2 Heat recovery system (HRS)

5.3 Air filtration

5.4 Flow rate, product parameters

5.5 Heat output

5.6 Cooling capacities

5.7 Dimensions and weights of the RoofVent® RH

5.8 Dimensions and weights of the RoofVent® RC

5.9 Dimensions and weights of the RoofVent® RHC

5.10 Dimensions and weights of the RoofVent® R

6 Options

6.1 Oil-proof design

6.2 Design for high extract air humidity

6.3 Corrosion-protected design

6.4 Corrosion-protected design for high extract air humidity

6.5 Connection module

6.6 Design with 2 Air-Injectors

6.7 Design without Air-Injector

6.8 Paint finish of below-roof unit

6.9 Fresh air silencer

6.10 Exhaust air silencer

6.11 Supply air and extract air silencers

6.12 Hydraulic assembly diverting system

6.13 Mixing valve

6.14 Condensate pump

6.15 Socket

6.16 Energy monitoring

6.17 Return temperature sensor

6.18 Pump control for mixing or injection system

7 Transport and installation

7.1 Delivery

7.2 Requirements for the installation site

7.3 Installation

7.4 Connecting air ducts and Air-Injectors

7.5 Hydraulic installation

7.6 Condensate connection

7.7 Electrical installation

8 Operation

8.1 Initial commissioning

8.2 Operation

9 Maintenance and repair

9.1 Safety

9.2 Maintenance

9.3 Repair

10 Dismantling

11 Disposal