Terra CL 08-33 Technical Documentation Manual

Technical documentation

Planning documentation

Installation instructions

Heat pumps

TERRA CL 08 - 33

Air - water - heat pump

Version 16.09.08

ib_TERRA CL

Page 2

Contents

General information 3

Description 4

Application range 4

Scope of delivery 4

Technical data 5

Design 6

Performance charts 7

Dimensions 9

Interior installation 10

Corner installation 11

Customer preparation 12

Accessories - corner installation 13

Assembly instructions - corner installation 14

Installation - Standard air duct 15

Option 1 16

Option 2 16

Accessories - Standard air duct 17

Customer preparation - Option 1 18

Customer preparation - Option 2 19

Assembly instructions - Standard duct 20

Installation - Flexible air hose 21

Customer preparation - Flexible air hose 22

Accessories - Flexible air hose 23

Assembly instructions - Flexible air hose 24

Conversion from right to left-side connection 25

Exterior installation 26

Customer preparation 26

Accessories - Exterior installation 27

Heating connections 28

Installation diagram 29

Control and regulation 33

Description of control functions 33

General 34

Connection diagram 35

Electrical connection 36

Power supply 36

Actuators - Pumps / valves 37

Sensor systems - sensors / inputs 38

Installing digital offset roomstat RS 40

Installing RFF room sensor 41

Commissioning information 41

Operation 42

Faults 43

Notes 44

Page 3

By purchasing this system you have acquired a modern

and efcient heating system. Ongoing quality controls

and improvements as well as functional checks at the

plant guarantee you technically perfect equipment.

Please read through this documentation carefully. It

contains important information for correct installation and

safe and economical operation of the system.

Safety instructions:

Installation and maintenance work can be hazardous due

to high system pressure, high temperatures and live parts

and may only be operated by specialist staff.

Heat pumps may only be installed by competent specia-

list staff and commissioned by a customer service com-

pany trained to do so by IDM-Energiesysteme GmbH.

When working on the heat pump, the system must be

de-activated and secured against re-activation. In additi-

on, all safety instructions in the relevant documentation,

stickers on the heat pump itself and all other applicable

safety regulations must be observed.

Transport:

During transport, the heat pump must never be inclined

more than 30°. The heat pump must not be transported

on the connection ttings. The transport packaging may

only be removed if the heat pump is located at its installa-

tion location.

Sound emission:

TERRA heat pumps are very quiet in operation thanks to

their design. It is however important that the site of the

heater is situated as far as possible from noise-sensitive

living areas. A noise-insulating door should be tted door.

Construction drying and screed heating

The heat pump is not designed for the increased heat re-

quirements when drying out construction work or heating

plaster or screed. This must be covered by equipment

provided by the customer if required.

Servicing and maintenance:

Regular maintenance as well as checking and servicing

of all system components guarantee its safe and eco-

nomical operation in the long term. To achieve this, we

recommend a maintenance contract with the relevant

customer service company.

Cleaning:

If necessary, the TERRA heat pump can be cleaned with

a damp cloth. The use of cleaning agents is not recom-

mended.

Installing additional components:

The installation of additional components which have not

been tested with the equipment may impair function. No

liability is accepted and the guarantee becomes void in

the event of damage caused for this reason.

Installation area:

- Ensure sufcient ventilation

(according to EN 378 T1-T4)

- No heavy dust formation

- No persistent air humidity

- Frost-proof

Symbols used and their meanings:

Various symbols can be found in these instructions. The

meaning of these symbols is given below.

General instructions for operation

of the heat pump.

Important information on installing and

operating the heat pump. This information

must be observed.

General instructions on installing the

heat pump.

Space for customer service

telephone number

The equipment conforms to the EU Directives:

Applicable EC Directives:

EC Machinery Directive (89/392/EEC)

EC Low Voltage Directive (73/23/EEC)

EC EMC Directive (89/366/EEC)

EC Pressure Equipment Directive

Applicable harmonised EN:

EN 378 EN 60529

EN 292/T1/T2 EN 294

EN 349 EN 60335-1/2-40

EN 55014 EN 55104

Applicable national standards/guidelines:

ÖNORM M 7755-2 (Austria)

DIN 8901 (Germany)

General information

Page 4

Description

The TERRA CL is an air source heat pump with suction

gas scroll compressor with large multi-row Al/Cu, nned

evaporator.

A special speed-controlled radial fan means that large

ow rates can be achieved at low speeds.

A plate heat exchanger is used as the condenser. The

machine frame consists of a steel-reinforced plastic pro-

le. The cover panels are foam-insulated. This means that

the casing is completely protected from cold bridges and

has excellent sound insulation.

The heating controller is a modern controller that fulls all

the functions of standard heating regulation.

The heat pump has a compact design, the evaporator is

ready-tted in the top of the heat pump casing. The heat

pump is lled with refrigerant and is checked in the facto-

ry before shipping for reliable functioning.

Application range

For monovalent heating of single-family and two-family

homes under appropriate environmental conditions. The

building must be equipped with low-temperature heating

(e.g. underoor heating, wall heating, low-temperature

radiator heating).

The lower the maximum heating temperature

is set, the higher the efciency of the heat

pump.

TERRA CL heat pumps work using the R407C safety ref-

rigerant which circulates in a closed circuit when correctly

mounted and commissioned. This minimises its environ-

mental impact.

Scope of delivery

Heat pump unit with suction gas cooled •

scroll compressor

Stainless steel plate heat exchanger as condenser•

Finned tube Al/Cu evaporator package•

Speed-controlled radial fan•

Starting current limiter with rotary eld monitoring•

Refrigerant collector and dryer•

Thermostatic expansion valve•

Refrigerant inspection glass•

Refrigerant heat exchanger•

High pressure and low-pressure limiter •

Integrated switching valve for defrosting•

Switch cabinet with integrated regulation•

Defrost regulator•

Inlet air sensor•

Thermal relay to protect the compressor•

Thermally insulated basic frame•

Cladding, insulated against heat and noise•

Heating pump (TERRA CL 08-15 only)•

Electric heating immerser for any re-heating required •

(TERRA CL 08-15 only)

Flexible connection hoses•

Starting current limiter•

Other accessories:

see also the IDM pricing list

Page 5

Technical data

TERRA CL 08-33

as per EN 14511

Type Unit 8101215222733

Heat output for A2/W35 as per EN 255[kW]8,6 10,5 12,3 15,4 21,2 27,4 33,2

Heat output for A2/W35 [kW] 8,610,412,515,220,926,432,6

Heat output for A7/W35 [kW] 11,1 13,6 16,0 18,9 24,733,039,2

Heat output for A-7/W35[kW]7,3 8,810,412,216,822,828,0

Heat output for A2/W35 EN 255[kW]2,252,763,274,165,587,418,97

Power consumption for A2/W35 [kW] 2,44 2,97 3,57 4,47 5,97 7,76 9,59

Power consumption for A7/W35 [kW] 2,59 3,24 3,85 4,49 6,02 8,04 9,80

Power consumption for A-7/W35[kW]2,372,842,533,945,597,609,33

COP for A2/W35 as per EN 2553,8 3,83,8 3,73,8 3,73,7

COP for A2/W35 3,53,5 3,53,4 3,53,4 3,4

Weight [kg] 240255 290310 395450 480

Dimensions

HxWxD [cm] 153x110x75 153x110x75 163x120x78163x120x78173x120x88193x130x98193x130x98

Condenser

Radiator flow and return pipe R1" AG R1" AG R1" AG R1" AG R 1¼" AG R 1 ½" AG R 1 ½" AG

Max. flow temperature[°C]55555555555555

Max. operational pressure [bar] 3333333

Min. heating circuit water volume [l/h]1500 1800 2200 2650 4000 4850 5650

Pressure loss - heating side [kPa]10111517151718

installed or recommended

UPS 25-60UPS 25-60UPS 25-80 UPS 25-80 UPS 32-80 UPS 32-80TOP S 40/10

Tank-charging pump

installed or recommended [kW] 6666999

Electric heating immerser

Condensate run-offR1" AG R1" AG R1" AG R1" AG R1" AG R1" AG R1" AG

Fan type

Nominal air volume [m³/h] 3500 4000 4500 5500 7500 10000 12000

externally available compression [Pa]

Refrigerant

Filling quantity[kg]3,8 3,94,4 4,56,5 711,2

electrical connection [V]

max. power intake [A]12,214,212,614,517,5 22,527,5

Starting current [A]25,730,73034,841,55465

series connected main current fuse [A]C13 C16C16 C16C20 C25C35

series connected control current fuse [A]C10 C10C10 C10C10 C10C10

series connected electric heating immerser fu

s

[A]C10 C10C10 C10C13 C13C13

Acoustic power level[dB(A)] 61 62 64 65 66 68 69

Sound level in 5 m (internal) [dB(A)]43434546474950

Sound level in 10 m (internal)[dB(A)] 37 37 39 40 41 43 44

3x400V / 50Hz

copper-soldered stainless steel plate heat exchanger

Not included as standard

radial / speed-controlled

can be freely adjustable using the speed of the fan

R407C

Page 6

Design

The dimensioning of an air/water heat pump should be

such that the bivalence point is between -3 and -10 °C.

This will help ensure that more than 90° of the annual

heating requirement is covered by the heat pump.

The maximum heating output of a building is determined

in the design, including its water consumption require-

ment.

In addition, the standard outside temperature is required.

This is determinated by geographical location and can be

obtained from various institutions.

Example:

Single-family house in Germany

4 persons

Service water consumption requirement:•

4 x 0.25 kW = 1 kW

Heating output required:•

16 kW

Standard outside temperature for Germany:•

- 16 °C

Off-period factor:•

1.1

Heating output required:

(service water consumption required + heating output required) x off-period factor = 18.7 kW

0

5

10

15

20

25

30

35

40

45

-20 -15 -10 -5 0 5 10 15 20

W35 EN14511

CL 33

CL 27

CL 22

CL 15

CL 12

CL 10

CL 8

{

outside temperature [°C]

heating capacity [kW]

bivalence point of the

particular heatpump

type

standard external temperature

electr. additional heating

at TERRA CL 15

service water required

electr. additional heating

at TERRA CL 22

building- characteristic line

required heating capacity at

standard external temperature

incl. service water required

Page 7

Performance charts

0

5

10

15

20

25

30

35

40

45

-20 -15 -10 -5 0 5 10 15 20

W35 EN14511

CL 33

CL 27

CL 22

CL 15

CL 12

CL 10

CL 8

outside temperature [°C]

heating capacity [kW]

0

5

10

15

20

25

30

35

40

45

-20 -15 -10 -5 0 5 10 15 20

W45 EN14511

CL 33

CL 27

CL 22

CL 15

CL 12

CL 10

CL 8

outside temperature [°C]

heating capacity [kW]

Page 8

0

5

10

15

20

25

30

35

40

45

-20 -15 -10 -5 0 5 10 15 20

W55 EN14511

CL 33

CL 27

CL 22

CL 15

CL 12

CL 10

CL 8

outside temperature [°C]

heating capacity [kW]

Page 9

Dimensions

Heating supply (exible connection hose)1

Can be used for sensors and control lines2

Can be used for sensors and control lines3

Heating return (exible connection hose)4

Condensation run-off5

d

f

b

h

a

l

k

j

i

g

a d

e

t

m

1

2

3

4

5

Type b h t a d e f g i j k l m

8 1100 1535 750 640

865 690 1035 575 460 350 240 125 125

10 1100 1535 750 640

865 690 1035 575 460 350 240 125 125

12 1200 1635 780 640

965 720 1135 575 460 350 240 125 125

15 1200 1635 780 640

965 720 1135 575 460 350 240 125 125

22 1200 1735 880 740 965 820 1135 675 540 400 260 125 125

27 1300 1935 980 740 1165 920 1235 675 540 400 260 125 125

33 1300 1935 980 740 1165 920 1235 675 540 400 260 125 125

TERRA CL 08-33

All dimensions in mm

Page 10

Interior installation

Installation instructions:

Interior installation of the heat pump is recommended.

This means that the work involved in frost protection

and condensation run-off heating can be avoided. It also

means that the inlet air / outlet air can be conveyed to the

heat pump with the least possible heat losses. Various

installation options are described in detail in the following

chapters.

All components of the heat pump are insulated so that no

condensation is formed on the external parts even at out-

let air temperatures of -20°C. However, it is still advisable

to air the room regularly.

The heat pump is decoupled via vibration dampers. The

installation location should consist of a solid base.

Heating connection:

A exible hose set is included as standard for heating

connections. See technical data for appropriate connec-

tion sizes for specic machines. It is advisable to use air

source heat pumps only in combination with a buffer tank

such as the IDM Hygienik Tank.

Condensation run-off:

Air source heat pumps generate condensation during

operation. With larger machines, up to 50l of water can

be extracted from the ambient air per day. The conden-

sation run-off should be conveyed into the waste water

channel via a siphon using the appropriate pipe diameter

for the machine.

Air routeing:

The various air ducts (see accessories for interior ins-

tallation) and wall openings are designed specically for

the relevant machines in question. Efcient and fault-free

operation can only be ensured if the appropriately sized

connection elements are used.

Even light shafts which are too small

enlarge the pressure loss of the air

routeing. These must therefore be of a

sufcient size.

Light shafts must have a rainwater run-off.

Air inlet / air outlet:

The options for how the air inlet and air outlet are desig-

ned are varied.

The list below provides design guidelines:

Air inlet side and air outlet side should always be on •

two different sides of the building.

Openings in the masonry must always be protected •

against the penetration of foreign bodies (leaves, small

animals). To do this, mesh grilles should be tted in

light shafts and weather-shield grilles should be ins-

talled on visible walls.

Wall openings must be created as per the specica-•

tions and insulated against damp penetration using a

closed-pore insulating material (minimum thickness

50mm).

Noise

Noise level in the installation room depends on various

factors such as room size, absorption capacity, reection,

free noise propagation, etc. For this reason, it is important

that the heat pump is situated as far as possible from

noise-sensitive areas. A noise-insulating door should be

tted.

The night-time reduction in the fan speed means that noi-

se can be reduced by up to 4 dB. Noise level on the inlet

and exhaust air openings are also reduced by approx. 4

dB when using air shafts or ducts.

In case of exterior installation, the installation of the heat

pump in a corner can lead to a higher noise level. Super-

position of the sound waves means that noise level can

increase up to 3 dB.

Page 11

Corner installation

A condensation run-off with siphon must

normally be tted opposite the exhaust

opening for the heat pump.

The ideal position for the heat pump has proved to be in a

corner. Wall openings can be prepared by the customer in

advance. These openings must be insulated with closed

pore insulating material (minimum thickness 50mm).

Space required, accessibility:

To guarantee maintenance and operation of the heat

pump, the following minimum distances must be obser-

ved:

Front side (operation and maintenance side) = 800mm

Maintenance side = 500mm

Observing these distances will help ensure problem-free

system maintenance and operation.

min. 500mm

1

Heating connection /

Condensation run-off

Page 12

Exhaust air opening to right Exhaust air opening to left

Based on accessibility, the exhaust air

opening should ideally be on the right-

hand side.

An even, solid installation surface must be selected.

After positioning the heat pump, it must then be made

level. There are adjustable feet on the heat pump for this

purpose.

Customer preparation

Specied dimensions include clearances. A noise-insulating door should be tted. Minimum

thickness of the wall insulation is 50mm.

a

b

d

c

e

f

g

a

b

d

c

e

f

g

Type abcdefg

81000 830 650 830 90 650 650

10 1000 830 650 830 90 650 650

12 1100 930 680 930 90 650 650

15 1100 930 680 930 90 650 650

22 1100 930 780 930 90 650 650

27 1200 1130 880 1130 90 750 750

33 1200 1130 880 1130 90 750 750

TERRA CL 08-33

All dimensions in mm

Corner installation

Page 13

Accessories - corner installation

Pos. 341

Pos. 342 (343)

Pos. 345 (346)

Pos. 344

T

yp

e 810 12 15 22 27 33

Pos. Accessories Prod. no. Prod. no. Prod. no. Prod. no. Prod. no. Prod. no. Prod. no.

341 Wall connection air inlet

for tight connection

344 Wall connection air outlet 192 364

for tight connection

Pos. Optional accessories Prod. no. Prod. no. Prod. no. Prod. no. Prod. no. Prod. no. Prod. no.

342 Weather-protected inlet grille

Steel, galvanised

343 Wire inlet grille

Steel, galvanised

345 Weather-protected outlet grille 192 365

Steel, galvanised

346 Wire outlet grille 192 366

Steel, galvanised

192 376192 346 192 356

192 375

192 342 192 352 192 372

TERRA CL 08-33

Corner installation

192 341 192 351 192 371

192 343 192 353 192 373

192 344 192 354 192 374

192 345 192 355

Page 14

Assembly instructions - Corner installation

Wall connection is supplied separately. Vertical connec-

tions must be afxed rst. To do this, simply remove the

lm on the rear. The cellular rubber can then be afxed

ush with the external edge of the heat pump.

Additionaly the horizontal elements are also lined on the

front. This will help ensure an optimum seal.

Before the machine is positioned in the corner, a check

should be carried out to ensure that the wall opening

prepared by the customer has been insulated.

The machine can then be moved into the corner.

The heat pump may only be moved with

the panels tted.

If there are any air gaps on the outlet or inlet openings

due to the ground being uneven, this can be corrected

using the adjustable machine feet.

Noise

Noise level in the installation room depends on various

factors such as room size, absorption capacity, reection,

free noise propagation, etc. For this reason, it is important

that the heat pump is situated as far as possible from

noise-sensitive areas. A noise-insulating door should be

tted.

Signicant pressure against the wall

should be avoided.

Page 15

Installation – Standard air duct

If there are no two external walls directly available for

installation, the air ow can be conveyed outwards via

insulated air ducts. Our range includes standard air ducts

which can be connected directly to the heat pump without

adaptation.

There are two ways to do this:

Option 1:

This method is used if there are no two external walls

available. As a short circuit may occur between the sup-

ply and exhaust sides with this method, the inlet and out-

let should be positioned as far apart as possible. The unit

can be separated from any shrubbery by tting dividing

walls if necessary.

Option 2:

This method is equivalent to corner installation. This

method can be used if corner installation is not possible

due to space restrictions or if a gap needs to be bridged

between the heat pump and outlet side.

Air ducts can be connected to the right

and left of the heat pump. Heating and

electrical connections can also be tted

on both sides.

Page 16

Pos. 341

Pos. 342 (343)

Pos. 421 Pos. 423

(424)

Pos. 425 Pos. 426

Pos. 427 (428)

Option 1

Pos. 341

Pos. 342 (343)

Pos. 421 Pos. 423

(424)

Pos. 426

Pos. 427 (428)

Option 2

Page 17

Accessories – Standard air duct

Air ducts are supplied with

mounting materials (screws, washers,

nuts).

Type 8101215222733

Pos. AccessoriesProd. no. Prod. no.Prod. no.Prod. no. Prod. no. Prod. no.Prod. no.

341 Wall connection air inlet

for tight connection

421Outlet panels right/left -

foamed -

423Duct (1000mm) -

insulated - can be cut to length on request -

424Duct (1500mm) -

insulated - can be cut to length on request -

425Bow 90° -

insulated -

426Wall connection -

insulated -

Pos. Optional accessoriesProd. no. Prod. no.Prod. no.Prod. no. Prod. no. Prod. no.Prod. no.

342Weather-protected inlet grille

Steel, galvanised

343Wire inlet grille

Steel, galvanised

427Weather-protected outlet grille-

Steel, galvanised -

428Wire outlet grille -

Steel, galvanised -

388Side panels 192 408

for free cut-out 84

-

192 351

37

-

192 371

-

192 353

225

192 372

550

192 373

260

192 352

222

192 428

45

Standard duct

-

192 341

TERRA CL 08-33

484

192 421 192 431

-

192 424

192 342

121

264

192 425

294

192 426

192 418

9965 73

192 388 192 398

34

120

178

129

192 423

199

118

192 427

192 343

398

Page 18

Customer preparation – Option 1

Specied dimensions include clearances. Wall opening should be thicker around the wall

insulation. Minimum thickness of the wall insulation is 50mm.

a

b

c

d

e

f

g

Type ab c d e fg**

81000 830 500 700 650 720 1100

10 1000 830 500 700 650 720 1100

12 1100 930 500 700 650 770 1100

15 1100 930 500 700 650 770 1100

TERRA CL 08-15

All dimensions in mm

Standard duct - Version 1 (90°)

** for 1000mm duct length / length can be cut to size as required

Page 19

Customer preparation – Option 2

Specied dimensions include clearances. Wall opening should be thicker around the wall

insulation. Minimum thickness of the wall insulation is 50mm.

a

b

c

d

e

f

g

h

Type abcdefg**h

81000 830 500 700 650 720 1100 270

10 1000 830 500 700 650 720 1100 270

12 1100 930 500 700 650 770 1100 270

15 1100 930 500 700 650 770 1100 270

TERRA CL 08-15

All dimensions in mm

Standard duct - Version 2 (180°)

** for 1000mm duct length / length can be cut to size as required

Page 20

Assembly instructions - Standard duct

Air inlet side:

The inlet-side wall connection is supplied separately. Ver-

tical connections must be afxed rst. To do this, simply

remove the lm on the rear side. The cellular rubber can

then be afxed ush with the external edge of the heat

pump.

Additionaly the horizontal elements are also lined on the

front. This will help ensure an optimum seal.

Before the machine is positioned on the inlet opening,

check that the wall opening prepared by the customer

has been insulated.

The heat pump may only be moved with

the panels tted.

If there are any air gaps on the outlet or inlet openings

due to the ground being uneven, this can be corrected

using the adjustable machine feet.

Signicant pressure against the wall

should be avoided.

Outlet panels:

The outlet panel is mounted using the four clamps sup-

plied.

Duct:

Assemble the duct using the screw set supplied. The

tting length should then be checked.

If the straight duct is too long, two rivets can be bored

open on one side so that the ange can be removed. The

duct can then be cut to length using an angle grinder or

a jigsaw with the relevant blade. The ange can then be

re-tted.

Insulation:

The insulation for the straight duct is supplied separately.

This is self-adhesive and needs to be afxed once the

duct has been cut to the correct length.

Wall connection:

The wall connection is sprayed into the wall opening with

assembly foam. The outlet duct must be connected befo-

re the foam hardens.

If two or more ducts are assembled

together, the duct must be supported

(above or below).

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Terra CL 08-33 Technical Documentation Manual

Terra CL 08-33 Technical Documentation Manual

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