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Fläkt Woods

3099 US 03.02

23

Specifications are subject to alteration without notice

PUMA (A–F) Rotary heat exchanger

TECHNICAL HANDBOOK

Installation

Fig. 25

Fig. 27

Fig. 26

Fig. 28

Connection to other unit sections

A rotary heat exchanger with casing is best connected to
the air handling unit or the ducting by means of slip
clamps. The slip-clamp system should be fitted by the
unit manufacturer or installation contractor to suit the
connection openings on the unit or ducts.

Installation in a modular unit

The rotary heat exchanger with casing is mounted inside
a unit casing or is connected by means of connection
frames.

Installation in compact units

The rotary heat exchanger with casing is pushed into the
unit which is provided with seals designed to avoid air
leakage.

Installation in a plant room

The rotary heat exchangers can be installed
directly on the floor or in a wall. This is a
common installation alternative in systems
with larger heat exchangers.

Содержание ECONOVENT - PUM

Страница 1: ...ECONOVENT PUM Rotary heat exchanger Technical Handbook...

Страница 2: ...TS Design 3 4 Design Description Accessories 5 6 The process in the psychrometric chart 7 8 9 Rotor selection 10 Selection of heat exchanger type and size 11 Efficiency 12 Design chart 13 Project desi...

Страница 3: ...e oil consumption or the con umption charge for electrical energy or heat from the district heating system Reduced energy consumption for humidification hygroscopic rotors of the air since moisture is...

Страница 4: ...at the factory Note that a split casing as shown in Fig 2 is available for size 150 and larger sizes Casing for sizes 265 500 The casing is of single skin design and is delivered split as shown in Fig...

Страница 5: ...sensible heat and latent heat on changing moisture content COMPOSITE ROTORS F rotors are hygroscopic i e they recover both sensible heat and latent heat The com posite material is incombustible and co...

Страница 6: ...anger PUMZ 21 Differential thermostat In cooling energy recovery used for switching the heat exchanger to maximum speed when the outdoor temper ature is higher than the exhaust air temperature Two sen...

Страница 7: ...14 5 14 0 13 5 13 0 80 Chart 1 Non hygroscopic rotors type A C and E In type A C and E NON HYGROSCOPIC rotors only sensible heat exchange takes place as long as there is no condensation in the rotor...

Страница 8: ...grains lb 100 110 120 0 5 10 15 20 25 30 35 40 45 50 20 40 60 12 0 12 5 14 5 14 0 13 5 13 0 80 Chart 2 Hygroscopic rotors type B D and F In type B D and F HYGROSCOPIC ROTORS the moisture and temperat...

Страница 9: ...w rates full speed and typical exhaust air temperatures occurring in comfort ventilation systems Excess water will occur in the hygroscopic rotor as soon as the interconnecting line between the inlet...

Страница 10: ...heat exchanger TECHNICAL HANDBOOK The process in the psychrometric chart 35 70 105 140 175 20 10 0 10 20 30 40 50 60 70 80 90 Dry Bulb Temperature F Humidity Ratio grains lb 100 110 120 0 5 10 15 20...

Страница 11: ...eat exchanger TECHNICAL HANDBOOK The process in the psychrometric chart 35 70 105 140 175 20 10 0 10 20 30 40 50 60 70 80 90 Dry Bulb Temperature F Humidity Ratio grains lb 100 110 120 0 5 10 15 20 25...

Страница 12: ...PUMD PUME PUMF Rotorutf rande Rotormaterial Anv ndningsomr de Icke hygroskopisk tervinning av v rme Hygroskopisk tervinning av v rme fukt Hav kust Inland Tung industri L tt industri Stad Landsbygd Alu...

Страница 13: ...tor 5 Systems with high risk of corrosion and intended for comfort air handling heavy industry in a coastal environment or corrosive urban environment Select the ECONOVENT with F rotor For a non hygro...

Страница 14: ...peeds are shown in Chart 3 The chart is valid for normal changes in condition in climate systems and at an air velocity v 3 m s through the rotor Definitions Efficiency Supply air temperature efficien...

Страница 15: ...3 0 4 0 5 0 6 0 7 0 8 Air velocity FTM Pressure drop IN WG Pressure drop IN WG Pressure drop IN WG Pressure drop IN WG 400 500 600 800 700 1 000 1 200 300 400 500 Pressure drop IN WG 100 90 80 70 60 5...

Страница 16: ...be set to suit the pressure differential p1 p3 in the system see table below If the purging sector of the heat exchanger is set to 0 a certain volume of exhaust air will always be transferred to the s...

Страница 17: ...ssure conditions in the building throughout the year Maximum cooling energy recovery will be achieved if the fans are located so that the heat in the outdoor air and the fan generated heat are both tr...

Страница 18: ...ng Insertion loss Lw dB Rotor version Octave band mid frequency Hz 63 125 250 500 1000 2000 4000 8000 Non hygroscopic rotor aluminium 3 4 4 3 4 5 6 9 Hygroscopic rotor aluminium 3 2 3 4 5 6 7 9 Compos...

Страница 19: ...50 60 70 80 90 0 20 40 60 80 100 Verkningsgrad 100 av max varvtal t x Hygroskopisk rotor Kompositrotor Rum RC T RC RPM DM Ing r i PUM Fig 13 RC RPM DM ST SV RC T DT K Varvtalsregulator Spj llreglermot...

Страница 20: ...alarm lamp or the like Magnet Magnet Example 2 Heating and cooling energy recovery The temperature sensor 5 maintains the exhaust air temperature or room temperature constant via the con trol unit 4 w...

Страница 21: ...to the warmer air stream This is achiev ed by p1 p2 and p2 p4 as shown in Fig 20 below If the supply and exhaust air are both at temperatures above 100 F the motor compartment should be cooled by mea...

Страница 22: ...r units The maximum permissible deflec tion of the load bearing centre beam when supporting the weight of the heat exchanger and any other compo nents is 0 04 inches M M Fr nluft Tilluft 1 Horisontell...

Страница 23: ...manufacturer or installation contractor to suit the connection openings on the unit or ducts Installation in a modular unit The rotary heat exchanger with casing is mounted inside a unit casing or is...

Страница 24: ...276 095 47 2 37 4 2 4 320 309 442 110 55 1 43 3 4 1 364 353 530 120 59 1 47 2 4 1 464 430 596 135 63 0 53 1 4 1 475 442 640 150 66 9 59 1 4 1 39 0 585 541 773 170 74 8 66 9 4 1 42 9 673 607 872 190 8...

Страница 25: ...rm relay PUMZ 20 2 1 Speed detector PUMZ 20 b c Differential thermostat PUMZ 21 Danfoss type RT 270 2 m length of capillary tube LT bulb For the lower air temperature HT bulb For the higher air temper...

Страница 26: ...095 110 120 135 150 170 190 200 215 240 265 290 320 350 380 420 460 500 1 Only wound rotor Drive equipment cc 00 without drive equipment 01 with constant speed drive equipment ABM heat recovery 04 wi...

Страница 27: ...PUMZ 19 Speed detector for constant and PUMZ 20 b c d variable speeds Make b 4 for sizes 095 240 5 for sizes 265 500 Delivery condition c 1 delivered in unmounted condition 2 factory mounted Material...

Страница 28: ...d non hygroscopic aluminum wheel for recovering principally sensible heat Type D Edge reinforced hygroscopic aluminum wheel for recovering sensible and latent heat Type E Epoxy treated aluminum wheel...

Страница 29: ...ted on a self adjusting base to provide correct belt tension The variable speed motor shall be specially manufactured for rotary heat exchangers and provide constant torque throughout the speed range...

Страница 30: ...6 0 3619 36 20 W www flaktwoods com SEFLE 3099 SE 03 02 teleskop reklambyr 036 30 83 80 MUNTERS INTERNATIONAL Inc 1064 Town and River Dr Ft Myers FL 33919 USA Telephone 239 540 0006 Fax 239 481 3566 i...

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