Lennox COMFAIR HH Series, COMFAIR HH 20, COMFAIR HH 10, COMFAIR HH 30, COMFAIR HH 40 Application Manual

...

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COMFAIR

APPLICATION GUIDE

High pressure fan coil unit

840  8000 m

COMFAIR HH-AGU-1107-E

• 1 •Application Guide • COMFAIR HH-AGU-1107-E

HIGH PRESSURE FAN COIL UNITS - HH

General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

General data - Eurovent Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Working limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Aeraulic performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Sound power spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Air pressure drops for the main accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Water coil pressure drop diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

CONTROLLERS

General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

APPLICATION GUIDE

Ref : COMFAIR HH-AGU-1107-E

TABLE OF CONTENTS

COMFAIR HH High pressure fan coil units

Product designed and manufactured under a quality management system certiﬁ ed ISO 9001.

Our products comply with the European standards.

Our company is a member of the Eurovent Certiﬁ cation Program.

The COMFAIR LENNOX fan coil units are tested and rated in accordance with Eurovent certiﬁ cation program.

All the technical and technological information contained in this manual, including any drawing and technical descriptions provided by us, remain the property of Lennox and must not be utilised (except in operation of this product), reproduced, issued to or made available to third parties without the prior written agreement of Lennox.

• 2 •

RAM

BAM

PAM

SRE

HH SSP

SFA

Application Guide • COMFAIR HH-AGU-1107-E

GENERAL - HH

Comfair HH fan coil units are designed to operate against higher external static pressures (from 105 to 260 Pa), and are available in 7 sizes.

All standard units can be supplied with a complete range of factory or site ﬁ tted accessories, allowing a multitude of conﬁ gurations for all typical applications, for example :

• auxiliary condensate drain pan (UTC)

• air Filter section (SFA)

• auxiliary Coil

• fresh air inlet damper (SSP)

• electric heater (SRE)

• inlet, supply and exhaust air plenums (PAM, RAM et BAM)

FAN SECTION

Composed of one or two double inlet centrifugal fans with aluminium blades, mounted in horizontal position and statically and dynamically balanced. The electric motor is ﬁ tted with overload protection and has three speeds. It is constructed to comply with all relevant International standards, with a capacitor permanently in circuit. Motors are connected directly to the fan shafts and are located on anti-vibration mounts to ensure particularly quiet operation.

CHASSIS

The chassis is manufactured from thick (1mm) galvanised sheet steel.

COILS

Water Heat exchangers are copper tubes with aluminium ﬁ ns, bonded to the tubes by a mechanical expansion process. Coil connections are of female type antitorsion and headers are ﬁ tted with easily accessible air-vents.

CONTROL PANEL

Comfair HH fan coil units must be controlled from a separate remote controller. A large selection of controllers with varying levels of function is available to satisfy most requests. Options delivered separately : Ambient Thermostats (TA), Minimum water temperature thermostat (TC), Remote (wall mounted) controllers (CD1, CD2/X1, ... ).

AIR FILTER

Simple to remove, it comprises a metal frame containing a washable acrylic ﬁ lter media (ﬁ ltration efﬁ ciency EU 2).

HIGH PRESSURE FAN COIL UNITS - HH

• 3 •Application Guide • COMFAIR HH-AGU-1107-E

MANUAL FRESH AIR INLET DAMPER

Produced form Alu-Zinc sheet metal, it allows the introduction of fresh air up to a maximum of 30% of the total air volume.

ELECTRIC HEATER

Electric heater elements meet all of the relevant International safety standards and are ﬁ tted as standard with a safety cut-out thermostat and automatic reset. Heater elements are factory ﬁ tted with all electrical wiring and are connected to the control panel via a contactor.

AUXILIARY COIL

In order to offer the best solutions for 4 pipe applications, a supplementary 1 row coil can be ordered factory ﬁ tted.

INLET, SUPPLY AND EXHAUST AIR PLENUMS

Plenums are constructed from galvanised sheet steel allow for easy connection to ductwork.

GENERAL - HH

• 4 •

10 20 30 40 50

3,11 4,02 5,63 6,11 7,23

3,46 5,02 6,93 7,88 9,44

3,63 5,64 7,36 8,63 11

3,82 5,16 7,21 7,79 8,91

4,2 6,35 8,66 9,81 11,3

4,4 7,05 9,2 10,6 13,1

4,3 6,13 8,66 9,23 11,2

4,75 7,62 10,5 11,8 14,5

4,98 8,51 11,2 12,8 16,9

18,1 19,3 20,8 17,2 16,6

21,9 29,2 30 27,3 26,9

24 35,9 33,8 31,9 35,9

16,7 17 17,7 15,1 15,4

20,2 25,7 25,6 23,9 24,9

22,2 31,7 28,9 27,9 33,2

0,11 0,15 0,3 0,31 0,28

0,12 0,19 0,32 0,34 0,41

0,16 0,24 0,32 0,34 0,58

230/1/50

63 53 61 58 62

67 62 68 65 69

68 66 70 69 74

10 20 30 40 50

2,66 4,02 5,4 5,76 6,89

2,93 5 6,66 7,44 9,02

3,1 5,63 7,07 8,04 10,6

3,13 5,12 6,51 7,03 8,31

3,44 6,3 7,82 8,86 10,6

3,6 7 8,3 9,57 12,3

3,61 5,04 7,5 8,23 9,3

3,98 6,27 8,73 9,93 12

4,18 7 9,17 10,6 14

12 14,4 17,7 13,9 14,2

14,5 21,8 25,2 21,8 23

15,9 26,8 28 25 30,8

20 11,9 25,3 13,3 15

24,3 18,4 33,8 19,3 24,9

26,8 22,9 37 21,7 33,8

0,11 0,14 0,3 0,31 0,28

0,12 0,17 0,32 0,34 0,41

0,16 0,22 0,32 0,34 0,58

230/1/50

63 53 61 59 61

67 62 68 66 68

69 66 70 70 73

Application Guide • COMFAIR HH-AGU-1107-E

GENERAL DATA - EUROVENT CONDITIONS - HH

All data are at Eurovent conditions. http://www.eurovent-certiﬁ cation.com/

PROGRAM: FC-2-H

PROGRAM: FC-4-H

COMFAIR HH

Sensible cooling capacity kW

Min

Med

Max

Total cooling capacity kW

Min

Med

Max

Heating capacity kW

Min

Med

Max

Water pressure drops in cooling kPa

Min

Med

Max

Water pressure drops in heating kPa

Min

Med

Max

Fan electrical power kW

Min

Med

Max

Voltage V/Ph/Hz -

Sound power level dB(A)

Min

Med

Max

COMFAIR HH

Sensible cooling capacity kW

Min

Med

Max

Total cooling capacity kW

Min

Med

Max

Heating capacity kW

Min

Med

Max

Water pressure drops in cooling kPa

Min

Med

Max

Water pressure drops in heating kPa

Min

Med

Max

Fan electrical power kW

Min

Med

Max

Voltage V/Ph/Hz -

Sound power level dB(A)

Min

Med

Max

• 5 •

10 20 30 40 50 60 70

3640 7050 9200 10600 13100 27800 50600

3130 6063 7912 9116 11266 23908 43516

2870 5640 7360 8630 11000 21100 39500

2,468 4,85 6,33 7,422 9,46 18,146 33,97

4972 8512 11210 12800 16818 32430 60111

4276 7320 9641 11008 14464 27890 51696

626 1213 1582 1823 2253 4782 8703

0,174 0,337 0,441 0,506 0,626 1,328 2,418

24 35,9 33,8 31,9 35,9 34 40

2,4 3,7 3,4 3,3 3,7 3,5 4,1

22,2 31,7 28,9 27,9 33,2 24 30

2,3 3,2 2,9 2,8 3,4 2,4 3,1

8400 14300 18850 21520 28490 54240 100810

7224 12298 16211 18507 24502 46647 86698

722 1230 1621 1850 2450 4664 8670

0,201 0,342 0,45 0,514 0,681 1,296 2,408

18,3 29,6 27,5 26,1 35,6 20,7 27

1,9 3 2,8 2,7 3,6 2,1 2,8

3000 6000 9000 12000 18000

2586 5172 7759 10345 15517

4,56 9,12 13,67 18,23 27,35

4500 9000 12000 18000 24000

3879 7759 10345 15517 20690

6,84 13,67 18,23 27,35 36,46

837 1423 1951 2131 3002 4678 9250

0,233 0,395 0,542 0,592 0,834 1,299 2,569

1360 1360 1200 1207 1382 806 822

68 66 70 69 75 78 81

160 240 320 340 580 1320 2600

0,72 0,97 1,43 1,51 2,58 5,86 11,54

230/1/50

Application Guide • COMFAIR HH-AGU-1107-E

TECHNICAL DATA - HH

2 PIPES SYSTEM

COMFAIR HH

Total cooling capacity

(1)

Frig/h

Sensible cooling capacity

(1)

Frig/h

Heating capacity

(3)

kcal/h

Water ﬂ ow

(1) (3)

l/h

l/s

Water pressure drops in cooling

(1)

kPa

mWG.

Water pressure drops in heating

(3)

kPa

mWG.

Heating capacity

(2)

kcal/h

Water ﬂ ow

(2)

l/h

l/s

Water pressure drops in heating

(2)

kPa

mWG.

Electrical heater heating capacity

(4)

kcal/h

Electrical heater power input

(4)

Electrica heater heating capacity

(5)

kcal/h

Electrical heater input current

(5)

Air ﬂ ow

(6)

m3/h

Fan speed

(6)

rpm

Sound power level

(7)

dB(A)

Motor electrical power

(8)

Motor electrical input

(8)

Electrical supply V/Ph/Hz

Above mentionned technical data are calculated ar the following operating conditions:

- Maximum fan speed

- Standard unit without ducts (fancoil operating without external back pressure) (1) Cooling: entering water temperature 7°C, leaving water temperature 12°C, entering air temperature 27°C W.B.; 19°C D.B. (2) Heating: entering water temperature 50°C, same water ﬂ ow as in cooling, entering air temperature 20°C (3) Heating: entering water temperature 70°C, leaving water temperature 60°C, entering air temperature 20°C (4) Electric heaters section SRE - B: electric heaters capacities, lower speed cabling (SRE - B supplied as accessory only) (5) Electric heaters section SRE - A: electric heaters capacities, high speed cabling (SRE - A supplied as accessory only) (6) Air ﬂ ow and fan speed: fancoil performances with cleaned ﬁ lter (7) Sound power level: sound power measured following ISO 23741 (8) Electrical data referred to the maximum available speed

• 6 •

10 20 30 40 50 60 70

0,98 0,96

-----

0,98 0,95

-----

0,98 0,96

-----

0,97 0,94

-----

Application Guide • COMFAIR HH-AGU-1107-E

TECHNICAL DATA - HH

CORRECTION COEFFICIENT FOR DIFFERENT AVAILABLE SPEEDS

2 PIPES SYSTEM

COMFAIR HH 10 20 30 40 50 60 70

Total cooling capacity

1 0,84 min 0,74 min 0,79 min 0,74 min 0,68 min 0,77 min 0,78 min

2 0,95 med 0,90 med 0,94 med 0,93 med 0,87 med 0,89 med 0,90 med

3 1,00 max 1,00 max 1,00 max 1,00 max 1,00 max

4 1,00 max 1,00 max

Sensible cooling capacity

1 0,86 min 0,71 min 0,77 min 0,71 min 0,65 min 0,75 min 0,76 min

2 0,95 med 0,89 med 0,94 med 0,91 med 0,85 med 0,88 med 0,89 med

3 1,00 max 1,00 max 1,00 max 1,00 max 1,00 max

4 1,00 max 1,00 max

Heating capacity

1 0,86 min 0,72 min 0,77 min 0,72 min 0,67 min 0,75 min 0,77 min

2 0,95 med 0,90 med 0,94 med 0,92 med 0,86 med 0,88 med 0,89 med

3 1,00 max 1,00 max 1,00 max 1,00 max 1,00 max

4 1,00 max 1,00 max

Air ﬂ ow

1 0,81 min 0,63 min 0,69 min 0,63 min 0,56 min 0,69 min 0,70 min

2 0,93 med 0,85 med 0,91 med 0,89 med 0,80 med 0,84 med 0,85 med

3 1,00 max 1,00 max 1,00 max 1,00 max 1,00 max

4 1,00 max 1,00 max

Data indicated as min., med., max. concern the 3 standard speeds set at the factory. Upon customer request other 3 speeds among the 6 speeds available can be connected. NOTE: The symbol (-) means that for HH30 to HH70, only 3 fan speeds are available. For HH10 and HH20, upon customer request other 3 speeds among the 4 available speeds can be connected.

• 7 •

10 20 30 40 50 60 70

3600 7000 8300 9570 12300 24950 45550 3096 6020 7138 8230 10578 21457 39173 3100 5630 7070 8040 10600 20150 37750 2666 4842 6080 6914 9116 17329 32465 4180 7000 9170 10600 14000 38800 70150 3595 6020 7886 9116 12040 33368 60330

619 1205 1428 1646 2116 4291 7835

0,172 0,335 0,397 0,457 0,588 1,192 2,176

360 602 789 912 1204 3337 6033

0,1 0,167 0,219 0,253 0,334 0,927 1,676

15,9 26,8 28 25 30,8 27 32

1,6 2,7 2,9 2,5 3,1 2,8 3,3

26,8 22,9 37 21,7 33,8 33 36

2,7 2,3 3,8 2,2 3,4 3,4 3,7 2557 4275 5593 6441 8547 23730 42898 2204 3686 4822 5553 7368 20457 36981

446 746 976 1124 1492 4141 7486

0,124 0,207 0,271 0,312 0,414 1,15 2,079

46 39 62 36 58 56 62

4,7 4 6,3 3,7 5,9 5,8 6,3

795 1352 1853 2024 2852 4444 8788

0,221 0,376 0,515 0,562 0,792 1,234 2,441

1365 1365 1205 1214 1387 810 832

69 66 70 70 73 78 81

162 218 322 340 582 1320 2600

0,72 0,97 1,43 1,51 2,58 5,86 11,54

230/1/50

10 20 30 40 50 60 70

0,98 0,96

-----

0,98 0,96

-----

0,98 0,97

-----

0,97 0,94

-----

Application Guide • COMFAIR HH-AGU-1107-E

TECHNICAL DATA - HH

Above mentionned technical data are calculated ar the following operating conditions:

- Maximum fan speed

- Standard unit without ducts (fancoil operating without external back pressure) (1) Cooling: entering water temperature 7°C, leaving water temperature 12°C, entering air temperature 27°C W.B.; 19°C D.B. (2) Heating: entering water temperature 70°C, leaving water temperature 60°C, entering air temperature 20°C (3) Heating: entering water temperature 50°C, same water ﬂ ow as in cooling, entering air temperature 20°C (4) Air ﬂ ow and fan speed: fancoil performances with cleaned ﬁ lter (5) Sound power level: sound power measured following ISO 23741 (6) Electrical data referred to the maximum available speed

4 PIPES SYSTEM

CORRECTION COEFFICIENT FOR DIFFERENT AVAILABLE SPEEDS

COMFAIR HH

Total cooling capacity

(1)

Frig/h

Sensible cooling capacity

(1)

Frig/h

Heating capacity

(2)

kcal/h

Water ﬂ ow in cooling

(1)

l/h l/s

Water ﬂ ow in heating

(2)

l/h l/s

Water pressure drops in cooling

(1)

kPa

mWG.

Water pressure drops in heating

(2)

kPa

mWG.

Heating capacity

(3)

kcal/h

Water ﬂ ow

(3)

l/h l/s

Water pressure drops in heating

(3)

kPa

mWG.

Air ﬂ ow

(4)

m3/h m3/s

Fan speed

(4)

rpm

Sound power level

(5)

dB(A)

Motor electrical power

(6)

Motor electrical input

(6)

Electrical supply V/Ph/Hz

COMFAIR HH

Total cooling capacity

1 0,87 min 0,73 min 0,78 min 0,73 min 0,68 min 0,76 min 0,78 min 2 0,96 med 0,90 med 0,94 med 0,93 med 0,86 med 0,89 med 0,90 med 3 1,00 max 1,00 max 1,00 max 1,00 max 1,00 max 4 1,00 max 1,00 max

Sensible cooling capacity

1 0,86 min 0,71 min 0,76 min 0,72 min 0,65 min 0,74 min 0,76 min 2 0,94 med 0,89 med 0,94 med 0,93 med 0,85 med 0,87 med 0,89 med 3 1,00 max 1,00 max 1,00 max 1,00 max 1,00 max 4 1,00 max 1,00 max

Heating capacity

1 0,89 min 0,77 min 0,82 min 0,78 min 0,73 min 0,78 min 0,80 min 2 0,96 med 0,92 med 0,95 med 0,94 med 0,89 med 0,90 med 0,91 med 3 1,00 max 1,00 max 1,00 max 1,00 max 1,00 max 4 1,00 max 1,00 max

Air ﬂ ow

1 0,81 min 0,63 min 0,69 min 0,63 min 0,56 min 0,69 min 0,70 min 2 0,93 med 0,85 med 0,91 med 0,89 med 0,80 med 0,84 med 0,85 med 3 1,00 max 1,00 max 1,00 max 1,00 max 1,00 max 4 1,00 max 1,00 max

• 8 •

10 20 30 40 50 60 70

175 225 275 325 375 825 1400

1,3 1,1 1 1 1 1 1

1300 1850 2275 2700 3150 6900 11575

70,8 71,9 70 69,9 70,1 70,4 70,3

10 20 30 40 50 60 70

75 125 150 200 225 600 1025

1,2 1 1,3 1 1,2 1,1 1

575 1050 1100 1650 1725 4900 8450

68,5 69,7 70 69,2 69,6 70,7 70,2

10 20 30 40 50 60 70

3 100 100

4 -----

39085

4 -----

Application Guide • COMFAIR HH-AGU-1107-E

WORKING LIMITS - HH

Maximum entering water temperature: 70°C Maximum entering air temperature: 40°C Minimum entering water temperature: +4°C Minimum entering air temperature: +4°C Maximum working pressure: 8 Bar

WATER FLOW AND PRESSURE DROP LIMITS, 3R COIL (HH10 TO HH50) AND 4R COIL (HH60 AND HH70)

WATER FLOW AND PRESSURE DROP LIMITS, 1 ROW COIL (HH10 TO HH50) AND 2R COIL (HH60 AND HH70)

Data given for medium water temperature at 9,5°C

3 WAYS VALVE

Using of 2 or 3 ways valves is compulsory when the unit is used for cooling to avoid condensate in the external structure (bearing structure and cabinet). As alternative install a regulating system to stop coil water entering when the fan is off.

When the units is connected with ducts fan air ﬂ ow is reduced due to the ducting pressure drops. With very high pressure drops fancoil air ﬂ ow becomes too low and electric motor which is connected to the fan can be damaged. For this reason we recommand static pressures lower than the maximum limit static pressures indicated in the schedule. NOTE: When the fancoil is operating with the maximum operating indicated static pressure value, air ﬂ ow is half in comparison with the unit without ducts at the same working speed. Deﬁ nitively the static presure limit corresponds to the back pressure ables to half fancoil air ﬂ ow (as a consequence the fancoil unit performances like heating & cooling capacity, will be reduced of about 50%).

MAXIMUM FAN STATIC PRESSURE

Data given for medium water temperature at 65°C

COMFAIR HH

Minimal water ﬂ ow l/h

Minimal water pressure drop kPa

Maximal water ﬂ ow l/h

maximal water pressure drop kPa

COMFAIR HH

Minimal water ﬂ ow l/h

Minimal water pressure drop kPa

Maximal water ﬂ ow l/h

maximal water pressure drop kPa

COMFAIR HH

2 pipes system

Pa 90 min 80 min 115 min 105 min 135 min 220 min 220 min

Pa 95 med 95 med 130 med 130 med 180 med 240 med 240 med

Pa 135 max 135 max 205 max 260 max 260 max

Pa 105 max 105 max

4 pipes system

Pa 75 min 70 min 95 min 90 min 110 min 180 min 180 min

Pa 85 med 80 med 115 med 115 med 155 med 210 med 210 med

Pa 120 max 120 max 180 max 220 max 220 max

Pa 95 max 90 max

+ 22 hidden pages

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