DANVENT CATALOGUE 1999
CONTENTS Contents TC 7-10 Combi-unit 11-15 Combination examples with dimensions and weights 16 Transportation & installation 17-18 Roof unit 19-26 Damper sections 27-30 Filter sections 31-46 Heat recovery sections 47-50 Heater sections 51-54 Cooler sections 55-56 Humidifier sections 57-80 Fan sections 81-88 Accessories Contents SPAR 91-92 SPAR-unit 93-95 Function variations with dimensions & weights 96-97 Roof units 98-101 Specifications 102-109 Dimensions 110-114 Dampers, filters & heat recovery 115-116 Heating & cooling 117-128 Fan 129-132 Accessories Contents SPC 135-152 SPC roof unit
TC
Combi-Unit TC The Combi-Unit TC is assembled from a wide range of well dimensioned standard sections that can be combined to meet the demands made on highly advanced air handling units. can be supplied with fire insulation which increases the insulating characteristics of the unit. is available in 13 sizes ranging from a compact unit just 450 mm high to a larger unit which readily lends itself to major air handling projects. Flow range for the TC unit: 0.2-15 m 3 /s (700-54,000 m 3 /h). features large smooth surfaces both inside and out. This makes the unit particularly easy to clean. The surface treatment of the unit satities the requirements for environmental class 2 in accoedance with the standard DS 454. A version of the unit which meets the requirements for environmental class 3 is also available. is made of galvanised torsionally rigid profiles which give the unit great strength. The individual sections are easy to assemble owing to our wellknown wedge jointing system. The TC is a very airtight unit. It meets class A sealing requirements in accordance with the standard EN 1886. A model of the TC wich meets the class B sealing requirements is also availeble. has inspection doors positioned so as to facilitate access to the components wich are serviced regularly. The doors are fitted with twin sealing strips and effective locking systems operated by means of sturdy handles. As the TC is CE approved, the inspection doors can only be opened by using a spcial key. always has its winter clothes on. The casing is insulated with 50 mm of mineral wool sandwiched between two sheets of galvanised steel. This means that the thermal insulation and sound attenuation characteristics of the TC unit are excellent. has hinges on all large inspection doors. This makes it possible to service the unit without having to remove the doors. If there is insufficient space to open the doors on their hinges, the hinges are easily disassembled and the doors can then be removed. 7
Combi-Unit TC Heat Recovery - Considerable Energy Savings The combi-unit TC is available with a variety of advanced heat recovery systems, all of which substantially reduce energy consumption for heating outdoor air. Rotary Heat Exchanger The rotary heat exchanger (TCC) is a particularly efficient heat recovery unit, and can also recover moisture from the warm exhaust air. As a result, this type of heat exchanger is the most energy efficient of all. The efficiency can be controlled by the electronic VARIMATIC system. Cross-flow Heat Exchanger The cross-flow heat exchanger (TCQ) is a highly efficient plate heat exchanger and is used where the two air flows need to be kept apart, e.g. in order to avoid odours being carried over to the supply air flow. As the unit does not transfer moisture between the air flows, it can be used in dehumidification systems. The built-in damper system can be used to control the level of heat recovery. Run-around Coil Heat Exchanger Run-around coil heat exchangers are used where the two air flows need to be kept completely separate The heat is recovered via a heating coil in the supply airflow and a cooling coil in the exhaust airflow. The two elements are connected by a fluid-filled piping system. A motorised valve in the liquid cycle can be used to control the efficiency of the heat recovery process. Heat Pipe Heat Exchanger The TC model fitted with a heat pipe heat exchanger is used in situations in which the two airflows need to be kept completely separate. The heat exchanger contains a large number of heat pipes with aluminium fins. In the middle of the exchanger, there is a sealed plate which ensures that the two ariflows never come into contact with one another. The heat recovery process can be controlled and even stopped by using the exchanger's built-in bypass. Fans The fan section (TCV) can be supplied with centrifugal fans featuring either forward-curved (FK) or backwardcurved (BK) blades. Selection of Fan Type The high efficiency of the BK fan (max. 85%) makes this type of fan the preferred choice for systems in which low energy consumption is required, particularly in systems which have to deal with large volumes of air under high pressure. BK fans are also often chosen for installations with great variations in the filter pressure drops, but which are also required to operate with a moreor-less constant airflow. FK fans are mainly used in installations in which the emphasis is on lower fan speeds and reduced noise levels. Effective Vibration Insulation In the TCV section, the fan and motor are mounted on a base frame which is insulated from the unit casing by effective anti-vibration mountings. For models sized 05-31, the fan and motor can easily be taken out through the side of the casing on special slide rails. Airflow Control The fans can be supplied with single-speed or twospeed motors. When using two-speed motors, the airflow can be controlled in stages, and appreciable savings in energy can be made by using low speeds. Single-speed fans can be fitted with frequency converters to provide continuous variation of the fan speed and airflow. This makes it possible to achieve considerable savings in energy by operating at low speeds. The combination of fan, motor and frequency converter is well suited for use in installations dealing with variable airflows. 8
Combi-Unit TC Selection of Unit Size The charts show the recommended airflow ranges for the 13 sizes of combi-unit TC used in normal types of installation. The airflows stated are intended as a guide only. Special installation requirements can provide further guidelines for selecting the size of the unit. m 3 /h 50000 m 3 /s 15,0 10,0 150 150 150 00 5,0 65 66 95 96 65 66 95 96 65 66 95 96 00 3,0 45 46 45 46 45 46 2,0 30 31 30 31 30 31 5000 1,0 18 18 18 0 0,5 08 12 08 12 08 12 0 0,3 05 05 700 0,2 1 2 3 1: Damper, filter, rotary and cross-flow heat exchangers, heating coil, fan. 2: Run-around coil heat exchangers, heat pipe heat exchangers, cooling coil 3: Humidifier 9
Combi-Unit TC H B L Unit Dimensions The chart shows the main dimensions of the various sections of the TC unit. Detailed measurements and weights can be found on the data sheets for the individual sections of the unit. Str. 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H*) 450 650 650 750 900 900 1050 1050 1300 1300 1500 1500 1900 H*) The overall height of mixing section TCP, rotary exchanger TCC, cross-flow exchanger TCQ and heat pipe exchanger TCJ is 2 x H. Size 05 08 12 18 30 31 45 46 65 66 95 96 150 Section L Damper TCA 250 250 250 250 250 250 250 250 250 250 250 250 250 Damper TCB 250 450 450 450 450 450 600 600 750 750 750 750 900 Mixing TCM 250 450 450 450 450 450 600 600 750 750 750 750 900 Mixing TCP 450 450 450 600 600 600 600 600 750 750 900 900 900 Filter TCG 250 250 250 250 250 250 250 250 250 250 250 250 250 Filter TCF 600 600 600 600 600 600 600 600 600 600 600 600 600 Rotary exchanger TCC 500 500 500 500 500 500 500 500 600 600 600 600 600 Cross-flow exchanger TCQ 900 900 1050 1300 1500 1500 1700 1700 1900 1900 2400 2400 3000 Run-around coil exchanger TCR 600 600 600 600 600 600 600 600 600 600 600 600 600 Heat pipe exchanger TCJ 900 900 900 900 900 900 900 900 900 900 900 900 - Heater TCH 250 250 250 250 250 250 250 250 250 250 250 250 250 Electric-heater TCE 250 250 250 250 250 250 250 250 250 250 250 250 250 Electric-heater TCE 450 450 450 450 450 450 450 450 450 450 450 450 450 Cooler TCK 600 600 600 600 600 600 600 600 600 600 600 600 600 Humidifier TCX - 450 450 450 450 450 450 450 600 600 600 600 600 Fan TCV 750 800 900 1050 1 1 1500 1500 1700 1700 1900 1900 2300 Sound attenuator TCD 900 900 900 900 900 900 900 900 900 900 900 900 900 Sound attenuator TCD 1 1 1 1 1 1 1 1 1 1 1 1 1 Sound attenuator TCD 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 Empty section TCO Numerous variations - see page 82 10
Combi-Unit TC Combination Examples The various sections of the TC unit can be combined in many different ways. Installation specifications and requirements will, in most cases, determine which sections are to be used. Examples of some typical TC combinations are shown below. The dimensions B, H and L refer to the width, height and and length of the unit. There may be small variations in the weights specified due to differences in the sizes of the motors and the heating and cooling coils. All combinations can be fitted with a humidifier. Combination 1 Supply air Size B H L kg*) 05 750 450 1850 190 08 750 650 1900 220 12 900 650 0 260 18 1050 750 2150 320 30 1300 900 2300 460 31 1500 900 2300 510 45 1500 1050 2600 590 46 1700 1050 2600 690 65 1700 1300 2800 810 66 1900 1300 2800 890 95 1900 1500 3000 990 96 2300 1500 3000 1180 150 2300 1900 3400 1510 Combination 2 Supply air Cooling Size B H L kg*) 05 750 450 2450 260 08 750 650 2500 310 12 900 650 2600 360 18 1050 750 2750 450 30 1300 900 2900 610 31 1500 900 2900 700 45 1500 1050 3 790 46 1700 1050 3 940 65 1700 1300 3400 1060 66 1900 1300 3400 1210 95 1900 1500 3600 1290 96 2300 1500 3600 1610 150 2300 1900 4000 1920 Combination 3 Supply air Exhaust air Mixing Size B H L kg*) 05 750 450 2850 310 08 750 650 3350 380 12 900 650 3550 450 18 1050 750 3850 560 30 1300 900 4150 810 31 1500 900 4150 940 45 1500 1050 5050 1080 46 1700 1050 5050 1290 65 1700 1300 5750 1510 66 1900 1300 5750 1680 95 1900 1500 6150 1820 96 2300 1500 6150 2210 150 2300 1900 7250 2840 *) All weights are approximate. 11
Combi-Unit TC Combination 4 Supply air Exhaust air Mixing Cooling Size B H L kg*) 05 750 450 3450 370 08 750 650 3950 470 12 900 650 4150 550 18 1050 750 4450 690 30 1300 900 4750 950 31 1500 900 4750 1140 45 1500 1050 5650 1270 46 1700 1050 5650 1540 65 1700 1300 6350 1760 66 1900 1300 6350 0 95 1900 1500 6750 2120 96 2300 1500 6750 2640 150 2300 1900 7850 3270 Combination 5 Size B H L kg*) 05 750 900 1850 310 Supply air Exhaust air Mixing 08 750 1300 2 380 12 900 1300 2 450 18 1050 1500 2350 560 30 1300 1800 2500 810 31 1500 1800 2500 940 45 1500 2 2950 1080 46 1700 2 2950 1300 65 1700 2600 3300 1510 66 1900 2600 3300 1680 95 1900 3000 3500 1820 96 2300 3000 3500 2210 150 2300 3800 4050 2840 Combination 6 Supply air Exhaust air Mixing Cooling Size B H L kg*) 05 750 900 2450 370 08 750 1300 2700 470 12 900 1300 2800 550 18 1050 1500 2950 690 30 1300 1800 3 950 31 1500 1800 3 1140 45 1500 2 3550 1270 46 1700 2 3550 1540 65 1700 2600 3900 1760 66 1900 2600 3900 0 95 1900 3000 4 2120 96 2300 3000 4 2640 150 2300 3800 4650 3270 Combination 7 Supply air Exhaust air Heat recovery with rotary exchanger Size B B 1 H L kg*) 05 750 1050 900 2600 510 08 750 1050 1300 2650 590 12 900 1050 1300 2800 670 18 1050 1300 1500 3 885 30 1300 1500 1800 3400 1240 31 1500 1500 1800 3400 1370 45 1500 1800 2 4000 1660 46 1700 1800 2 4000 1860 65 1700 2 2600 4500 2345 66 1900 2 2600 4500 2485 95 1900 2600 3000 4900 2860 96 2300 2600 3000 4900 3150 150 2300 3000 3800 5700 4010 B 1 : Width of heat exchanger TCC *) All weights are approximate. 12
Combi-Unit TC Combination 8 Supply air Exhaust air Cooling Heat recovery with rotary exchanger Combination 9 Supply air Exhaust air Mixing Heat recovery with rotary exchanger Size B B 1 H L kg*) 05 750 1050 900 3 570 08 750 1050 1300 3250 680 12 900 1050 1300 3400 770 18 1050 1300 1500 3700 1045 30 1300 1500 1800 4000 1420 31 1500 1500 1800 4000 1570 45 1500 1800 2 4600 1920 46 1700 1800 2 4600 2110 65 1700 2 2600 5 2695 66 1900 2 2600 5 2805 95 1900 2600 3000 5500 3310 96 2300 2600 3000 5500 3580 150 2300 3000 3800 6300 4680 B 1 : Width of heat exchanger TCC Size B B 1 H L kg*) 05 750 1050 900 2750 520 08 750 1050 1300 3050 650 12 900 1050 1300 3250 730 18 1050 1300 1500 3550 945 30 1300 1500 1800 3850 1290 31 1500 1500 1800 3850 1490 45 1500 1800 2 4600 1750 46 1700 1800 2 4600 2070 65 1700 2 2600 5250 2495 66 1900 2 2600 5250 2565 95 1900 2600 3000 5650 3010 96 2300 2600 3000 5650 3280 150 2300 3000 3800 6600 4280 B 1 : Width of heat exchanger TCC Combination 10 Supply air Exhaust air Mixing Heat recovery with rotary exchanger Normal operation: % outdoor air and exhaust air - no return air Night operation: No outdoor or exhaust air - % return air - exhaust air fan stopped. Size B B 1 H L kg*) 05 750 1050 900 2700 490 08 750 1050 1300 2800 610 12 900 1050 1300 3000 690 18 1050 1300 1500 3450 905 30 1300 1500 1800 3750 1290 31 1500 1500 1800 3750 1490 45 1500 1800 2 4350 1750 46 1700 1800 2 4350 2070 65 1700 2 2600 5000 2495 66 1900 2 2600 5000 2565 95 1900 2600 3000 5550 3010 96 2300 2600 3000 5550 3280 150 2300 3000 3800 6350 4280 B 1 : Width of heat exchanger TCC Combination 11 Supply air Exhaust air Possibility for mixing Heat recovery with rotary exchanger NB: Excess pressure in exhaust air at the heat exchanger Size B B 1 H H 1 L kg*) 05 750 1050 450 1800 3250 530 08 750 1050 650 0 3750 650 12 900 1050 650 0 3950 730 18 1050 1300 750 2 4450 945 30 1300 1500 900 2250 5050 1330 31 1500 1500 900 2250 5050 1430 45 1500 1800 1050 2400 5950 1770 46 1700 1800 1050 2400 5950 1890 65 1700 2 1300 2750 6850 2495 66 1900 2 1300 2750 6850 2585 95 1900 2600 1500 2950 7650 3060 96 2300 2600 1500 2950 7650 3250 150 2300 3000 1900 3350 9250 4310 B 1 : Width of heat exchanger TCC H 1 : Greatest height of unit *) All weights are approximate. 13
Combi-Unit TC Combination 12 Supply air Exhaust air Heat recovery with cross-flow exchanger Size B H L kg*) 05 750 900 2750 460 08 750 1300 2800 530 12 900 1300 3 640 18 1050 1500 3650 820 30 1300 1800 4150 1150 31 1500 1800 4150 1340 45 1500 2 4950 1580 46 1700 2 4950 1940 65 1700 2600 5550 2130 66 1900 2600 5550 2520 95 1900 3000 6450 2830 96 2300 3000 6450 3540 150 2300 3800 7850 4680 Combination 13 Supply air Exhaust air Cooling Heat recovery with cross-flow exchanger Size B H L kg*) 05 750 900 3350 530 08 750 1300 3400 620 12 900 1300 3700 730 18 1050 1500 4250 940 30 1300 1800 4750 1310 31 1500 1800 4750 1540 45 1500 2 5550 1770 46 1700 2 5550 2190 65 1700 2600 6150 2380 66 1900 2600 6150 2840 95 1900 3000 7050 3140 96 2300 3000 7050 3970 150 2300 3800 8450 5110 Combination 14 Supply air Exhaust air Mixing Heat recovery with cross-flow exchanger Size B H L kg*) 05 750 900 2900 470 08 750 1300 3 580 12 900 1300 3550 694 18 1050 1500 4 890 30 1300 1800 4600 1250 31 1500 1800 4600 1480 45 1500 2 5550 1750 46 1700 2 5550 2120 65 1700 2600 6300 2380 66 1900 2600 6300 2620 95 1900 3000 7 3140 96 2300 3000 7 3770 150 2300 3800 8750 5220 Combination 15 Supply air Exhaust air Heat recovery with cross-flow exchanger Size B H L kg*) 05 750 900 3350 560 08 750 1300 3400 640 12 900 1300 3650 770 18 1050 1500 4050 960 30 1300 1800 4400 1320 31 1500 1800 4400 1500 45 1500 2 4900 1780 46 1700 2 4900 2020 65 1700 2600 5300 2360 66 1900 2600 5300 2570 95 1900 3000 6000 3090 96 2300 3000 6000 3580 150 2300 3800 7 5010 *) All weights are approximate. 14
Combi-Unit TC Combination 16 Supply air Exhaust air Heat recovery with run-around coil exchanger Size B H L kg*) 05 750 900 2450 490 08 750 1300 2500 610 12 900 1300 2600 710 18 1050 1500 2750 790 30 1300 1800 2900 1230 31 1500 1800 2900 1350 45 1500 2 3 1520 46 1700 2 3 1830 65 1700 2600 3400 2160 66 1900 2600 3400 2350 95 1900 3000 3600 2680 96 2300 3000 3600 3180 150 2300 3800 4000 4070 Combination 17 Supply air Exhaust air Cooling Heat recovery with run-around coil exchanger Size B H L kg*) 05 750 900 3050 560 08 750 1 3 700 12 900 1300 3 820 18 1050 1500 3350 920 30 1300 1800 3500 1400 31 1500 1800 3500 1545 45 1500 2 3800 1740 46 1700 2 3800 2070 65 1700 2600 4000 2445 66 1900 2600 4000 2670 95 1900 3000 4 3040 96 2300 3000 4 3560 150 2300 3800 4600 4565 Combination 18 Size B H L kg*) 05 750 900 2650 470 Supply air Exhaust air Heat recovery with heat pipe exchanger 08 750 1300 2750 580 12 900 1300 2950 680 18 1050 1500 3250 790 30 1300 1800 3550 1250 31 1500 1800 3550 1380 45 1500 2 4150 1570 46 1700 2 4150 1880 65 1700 2600 4550 2230 66 1900 2600 4550 2450 95 1900 3000 4950 2790 96 2300 3000 4950 3280 Combination 19 Supply air Exhaust air Cooling Heat recovery with heat pipe exchanger Size B H L kg*) 05 750 900 3250 540 08 750 1300 3350 670 12 900 1300 3550 790 18 1050 1500 3850 920 30 1300 1800 4150 1420 31 1500 1800 4150 1575 45 1500 2 4750 1790 46 1700 2 4750 2130 65 1700 2600 5150 2515 66 1900 2600 5150 2770 95 1900 3000 5550 3150 96 2300 3000 5550 3710 *) All weights are approximate. 15
Combi-Unit TC Transportation and Assembly of the Combi-Unit TC The combi-unit TC can be supplied as a conventional sectionalised unit, or as a fullyassembled integrated unit where the components are supplied ready-mounted on a common base frame. When the unit is in place in the building, the sections can easily be assembled by means of our well-known wedge jointing system that results in a completely sealed and very sturdy assembly of the frame profiles of the various sections. Fully-Assembled Integrated Unit Unit for indoor assembly Soft lifting straps Space permitting, the ready-mounted option provides a number of advantages, as the time spent on installing and assembling the unit is substantially reduced. If the combi-unit TC is supplied as a fullyassembled integrated unit, it is fitted to a common base frame. This makes it possible to lift and transport the unit. Sectionalised Unit If the combi-unit TC is supplied in sections, the individual sections should be placed on sturdy transport pallets of a size to match the different sections. For large installations, it may be necessary to use several pallets. Once on the pallets, the units can be transported from the factory directly to the assembly site. There are holes in the base frame through which lifting poles should be passed when lifting the unit. Soft lifting straps can then be attached to the ends of the poles. 16
Roof Unit TC Assembling the Roof Unit The unit should be assembled on a level horizontal underlay with sufficient load capacity. The design and load capacity of the underlay must be appropriate for the size and location of the unit. The TC roof unit is a combi-unit intended for outdoor assembly. Larger units can be supplied in sections to facilitate transportation and assembly. The unit features a special roof construction which provides effective protection against the effects of the weather. The underlay should be completely horizontal in order to ensure correct drainage from the condensation trays, for example, and to ensure that the inspection doors can be opened easily. Type 1 Roof unit B x L The roof unit is built on a base frame with lifting holes so as to make it easier to lift the unit into position on the roof of the building. H 1 The TC roof unit is available with all models of heat exchanger. The unit can also be fitted with special components to stop rain or snow penetrating the air inlet and outlet. The unit can also be supplied with sound attenuators and sections which lead the air directly down into the building, so that the installation can be mounted without ducts on the roof. The TC roof unit is made up of individual sections which feature the same sturdy frame profiles as conventional TC units. Type 2 Roof unit H B x L 1 Transportation Soft lifting straps 1) Insulation and covering: see building contract Spacing pole The roof unit is built onto a base frame which enables the unit to be transported and mounted. There are holes in the base frame through which lifting poles can be passed to lift the unit. When lifting roof units, spacing poles should be used to keep the lifting straps free of the roof of the unit, in order to avoid damaging the lip of the roof. Type 1: Mounted on the roof framework. A watertight covering should be applied before mounting. The roof framework can also be used to offset the pitch of the roof. Type 2: Mounting on the roof structure. Watertight graduations can be made after mounting. The base frame is made of robust galvanised steel sheets with a profile which facilitates the subsequent fitting of the watertight covering.the base frame is also fitted with a drip edge as shown above. H = mm for TC 05-46. H = 300 mm for TC 65-150. 17
Roof Unit TC Door Holders Duct Section 1 2 All the doors on the roof units are fitted with door holders. This makes it possible to work on the units even in windy conditions. Pipe Box Duct sections 1 and 2 are used on roof units in which the airflows are to be led down into the building so that the installation can be mounted without ducts on the roof. This is typically carried out in a TCO section. Type 1 leads the unit s upper airflow down into the building, while the lower airflow is connected directly to the ducts in the building. Type 2 leads both the unit's airflows down into the building and can be used, for example, in combination with a sound attenuator section. Air Inlet and Outlet Coil at bottom of unit A pipe box is used on TC roof units where the piping installations for the heating, cooling and recovery coils need to be protected against the rain, snow and cold. The pipe box is insulated with 50 mm mineral wool sandwiched between two galvanised steel sheet casings. It is connected to the roof unit by means of a special sealing profile which also makes it easy to lift the pipe box off when mounting and inspecting the piping installation. A louvre grill is used for the air inlet and outlet on TC roof units intended for direct air inflow. This effectively protects the unit against rain and snow. The closely fitting louvre dampers prevent the outdoor air from entering the unit when it is not running, thereby protecting the unit's components. Combination Example 18
31 46 66 96 Damper Section TCA T he damper section TCA consists of an insulated casing and a damper with contrarotating damper blades. The TCA can be used as a supply or exhaust damper. The damper blades are made of aluminium and are supported by bearings made of ABS. The damper blades are interconnected by means of a system of arms. A damper shaft is passed through the unit casing and can be connected to a damper motor. An arrow clearly indicates the position of the dampers. The dampers feature tight-fitting rubber profiles between the blades, and special sealing strips at the end of each blade. This means that the sealing of the dampers conforms to the class 3 sealing requirements laid down in standard DS 447 and the class 2 sealing requirements as stated in standard EN 1886. Dampers conforming to the class 4 sealing requirements of standard DS 447 are also available. The TCA can also be supplied with insulated damper blades. Pressure Drop Across Damper 90 = fully open damper 05 08 12 18 30 45 65 95 150 90 60 30 15 m 3 /s 0,2 0,3 0,5 1,0 2,0 3,0 5,0 10,0 15,0 10 20 50 500 m 3 /h 700 0 0 5000 00 00 50000 19
Damper Section TCA 35 35 Pos. H Pos. V H B L Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 450 650 650 750 900 900 1050 1050 1300 1300 1500 1500 1900 L 250 250 250 250 250 250 250 250 250 250 250 250 250 Weight kg 30 35 40 50 60 65 75 85 95 105 120 135 150 Torque (Nm) /Size 05 08 12 18 30 31 45 46 65 66 95 96 150 - - - 3 6 7 8 9 12 13 17 18 22 500-3 4 6 9 10 13 14 17 18 22 23 27 0 4 5 6 8 13 14 17 18 23 24 28 29 32 This table shows the (minimum) torque necessary or the performance of the damper motor performance with varying pressure drops across the damper. Specification TCA - Size - Pos. - Sealing class (DS 447) Example: TCA - 18 - H - Cl.3 20
31 46 66 96 15 Damper Section TCB T he damper section TCB consists of an insulated casing and a damper with parallel rotating damper blades. The TCB can be used as a supply or exhaust damper. The damper blades are made of aluminium and are supported by bearings made of ABS. The damper blades are interconnected by means of a system of arms. A damper shaft is passed through the unit casing and can be connected to a damper motor. Pressure Drop Across Damper An arrow clearly indicates the position of the dampers. The dampers feature tight-fitting rubber profiles between the blades and special sealing strips at the end of each blade. This means that the sealing of the dampers conforms to the class 3 sealing requirements laid down in standard DS 447 and the class 2 sealing requirements as stated in standard EN 1886. Dampers conforming to the class 4 sealing requirements of standard DS 447 are also available. The TCB can also be supplied with insulated damper blades. 90 = fully open damper 05 08 12 18 30 45 65 95 150 90 60 30 m 3 /s 0,2 0,3 0,5 1,0 2,0 3,0 5,0 10,0 15,0 10 20 50 500 0 m 3 /h 700 0 0 5000 00 00 50000 21
Damper Section TCB Damper on the Top Damper on the Bottom 35 35 Pos. V 1 Pos. H 35 Pos. V 5 Pos. H F 2 H 6 H 3 F 7 35 B 4 35 F L B 8 35 F L Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 450 650 650 750 900 900 1050 1050 1300 1300 1500 1500 1900 L 250 450 450 450 450 450 600 600 750 750 750 750 900 F 160 230 230 280 380 380 430 430 530 530 580 580 680 Weight kg 30 45 50 60 75 85 95 120 145 155 165 205 240 Torque (Nm) /Size 05 08 12 18 30 31 45 46 65 66 95 96 150 - - - 3 4 4 5 5 8 9 12 13 16 500 - - 3 4 5 5 7 7 10 11 15 16 20 0 3 4 5 6 7 7 10 10 13 14 17 18 25 This table shows the (minimum) torque necessary for the performance of the damper motor with varying pressure drops across the damper. Specification TCB - Size - Pos. - Connection - Sealing class (DS 447) Example: TCM - 18 - H - 2/4 - Cl.3 22
31 46 66 96 15 Mixing Section TCM T he mixing section TCM is fitted with two dampers with parallel rotating damper blades The TCM is used as a supply air and mixing damper and can, together with damper section TCB, constitute a complete mixing unit. The damper blades are made of aluminium and are supported by bearings made of ABS. The damper blades are interconnected by means of a system of arms. The TCM can be supplied with insulated damper blades. The dampers feature tight-fitting rubber profiles between the blades and special sealing strips at the end of each blade. This means that the sealing of the dampers conforms to the class 3 sealing requirements laid down in standard DS 447 and the class 2 sealing requirements as stated in standard EN 1886. Dampers conforming to the class 4 sealing requirements of standard DS 447 are also available. Pressure Drop Across Damper 90 = fully open damper 05 08 12 18 30 45 65 95 150 90 60 30 m 3 /s 0,2 0,3 0,5 1,0 2,0 3,0 5,0 10,0 15,0 10 20 50 500 0 m 3 /h 700 0 0 5000 00 00 50000 23
Mixing Section TCM 35 35 Pos. V 1 Pos. H F 2 H F 3 35 B F L 4 35 Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 450 650 650 750 900 900 1050 1050 1300 1300 1500 1500 1900 L 250 450 450 450 450 450 600 600 750 750 750 750 900 F 160 230 230 280 380 380 430 430 530 530 580 580 680 Weight kg 35 55 65 75 90 105 120 150 175 185 245 290 Torque (Nm) /Size 05 08 12 18 30 31 45 46 65 66 95 96 150 - - - 3 4 4 5 5 8 9 12 13 16 500 - - 3 4 5 5 7 7 10 11 15 16 20 0 3 4 5 6 7 7 10 10 13 14 17 18 25 This table shows the (minimum) torque necessary for the performance of the damper motor with varying pressure drops across the damper. Specification TCM - Size - Pos. - Connection - Damper motor coupling (A/B) - Sealing class (DS 447) Example: TCM - 12 - H - 2/3 - Cl.3 24
31 46 66 96 Mixing Section TCP T he mixing section TCP is a complete mixing unit with supply air, exhaust air and mixing dampers. It can, for example, be used in conjunction with the rotary heat exchanger TCC. The TCP has 3 dampers with contrarotating damper blades made of aluminium, which are supported by bearings made of ABS. A shaft is passed through the unit casing from each damper, and can then be connected to the respective damper motor. An arrow indicates the position of each damper. The dampers feature tight-fitting rubber profiles between the blades and special sealing strips at the end of each blade. This means that the sealing of the dampers conforms to the class 3 sealing requirements laid down in standard DS 447 and the class 2 sealing requirements as stated in standard EN 1886. Dampers conforming to the class 4 sealing requirements of standard DS 447 are also available. The TCP can also be supplied with insulated damper blades. Pressure Drop Across Supply Air and Exhaust Air Dampers 90 = fully open damper 05 08 12 18 30 45 65 95 150 90 60 30 15 m 3 /s 0,2 0,3 0,5 1,0 2,0 3,0 5,0 10,0 15,0 10 20 50 500 m 3 /h 700 0 0 5000 00 00 50000 25
Mixing Section TCP 35 35 Pos. V Pos. H 70 H L B Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 900 1300 1300 1500 1800 1800 2 2 2600 2600 3000 3000 3800 L 450 450 450 600 600 600 600 600 750 750 900 900 900 Weight kg 75 90 105 135 170 185 195 235 275 320 360 410 460 Torque (Nm) /Size 05 08 12 18 30 31 45 46 65 66 95 96 150 - - - 3 6 7 8 9 12 13 17 18 22 500-3 4 6 9 10 13 14 17 18 22 23 27 0 4 5 6 8 13 14 17 18 23 24 28 29 32 This table shows the (minimum) torque necessary for the performance of the damper motor with varying pressure drops across the damper. Specification TCP - Size - Pos. - Sealing class (DS 447) Example: TCP - 30 - V - Cl.3 26
Filter Section TCG T he filter section TCG is short in length, and consists of one or more cassettes fitted with a pleated filter mat to increase the filter area. The filter material rates class EU3 (G3) and should be changed when dirty. The TCG is fitted with a door for removing the filter. Tappings for a manometer or a filter monitor are supplied with the section. The chart below indicates the design pressure drop, the starting pressure drop with a clean filter, and the recommended terminal pressure drop. Design Pressure Drop Recommended terminal pressure drop Starting pressure drop (clean filter) 150 31 46 66 96 70 150 70 05 08 12 18 30 45 65 95 150 50 40 50 m 3 /s 0,2 0,3 0,5 0,7 1,0 1,5 2,0 3,0 5,0 7,0 10,0 15,0 m 3 /h 700 0 0 3000 5000 00 00 50000 27
Filter Section TCG 35 35 Pos. H Pos. V H B L F = Space required for removal of filter F Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 450 650 650 750 900 900 1050 1050 1300 1300 1500 1500 1900 L 250 250 250 250 250 250 250 250 250 250 250 250 250 F 600 600 750 500 600 700 700 750 750 850 850 1050 1050 Weight kg 25 30 35 40 50 55 60 65 75 80 85 95 115 Specification TCG - Size - Pos. Example: TCG - 30 - H 28
Filter Section TCF T he filter section TCF is fitted with bag filters which are available in 5 classes. The bags have a large filter area which provides a low design pressure drop. The filters are attached with locking rails which are actuated using a large handle. The filters are also pressed against a rubber sealing strip which results in a particularly tight seal. Tappings for a manometer or filter monitor are supplied with the section. The TCF is Available in the Following Filter Classes EU3 EU5 EU6 EU7 EU9 G3 F5 F6 F7 F9 Pressure Drop Recommended terminal pressure drop EU3 80 120 140 EU5-EU6 120 160 240 EU7-EU9 160 300 400 Starting pressure drop (clean filter) 15 20 30 50 70 300 30-31 46 66 96 05 08-12 18 45 65 95 150 EU3 EU5 EU6 EU7 EU9 m 3 /s 0,2 0,3 0,5 0,7 1,0 1,5 2,0 3,0 5,0 7,0 10,0 15,0 20 30 50 70 400 m 3 /h 700 0 0 3000 5000 00 00 50000 Design pressure drop 29
Filter Section TCF 35 35 Pos. V Pos. H H B L F = Space required for removal of filter F Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 450 650 650 750 900 900 1050 1050 1300 1300 1500 1500 1900 L 600 600 600 600 600 600 600 600 600 600 600 600 600 F 600 600 600 600 600 600 600 600 600 600 600 600 600 Weight kg 45 50 55 65 80 85 95 105 115 130 145 165 190 Specification TCF - Size - Pos. - Filter class Example: TCF - 30 - H - EU5 30
Heat Exchanger Section TCC T he heat exchanger section TCC is an efficient rotary heat exchanger which is designed for combination with the other sections of the TC unit without the need for adapter sections. The heat exchanger has an efficiency level of up to 85%, depending on the operating conditions. The TCC is fitted with a rotor of corrugated aluminium which produces a laminar airflow through the heat exchanger. The heat exchanger is available in two models: S - Standard model. Used in all installations where there are no aggressive sustances in the air. K - Corrosion-resistant model. Used in installations where there are aggressive substances which attack aluminium. This model is suitable for installations near the coast where the air has a high salt content, and in industrial areas. Two variants of the heat exchanger are available: T - Non-moisture transferring Used in cases where the heat from the exhaust air needs to be transferred to the supply air. In the event of low outdoor temperatures, this variant will also transfer moisture from the condensation in the exhaust air. E - Moisture transferring (heat content exchanger) Used in cases where the moisture and heat from the exhaust air need to be transferred to the supply air, as a high enthalpy content in the exhaust air can significantly contribute to heating and moistening the supply air. Operating expenses can be reduced by using this variant. Available only in model S. The heat exchanger is designed with large inspection doors to facilitate service. Furthermore, the rotor in models TCC 05 - TCC 31 is mounted on a slide rail system so that it can be taken out through the side of the casing. This facilitates inspection of the rotor. The TCC is fitted with efficient seals around the rotor and between airflows. The exchanger is available with a purging sector which prevents the exhaust air from being transferred to the supply side by the rotor. Heat exchanger with two varieties of drive unit: A - constant speed motor The heat exchanger is driven by a threephase geared motor which is connected to mains voltage. This type of operation provides maximum heat recovery when the exchanger is in operation. B - variable speed motor An electronic VARIMATIC speed controller and a geared motor are built into the unit for continuously variable control of the speed of the heat exchanger. 31
Heat Exchanger Section TCC Constant Speed The heat exchanger is driven by a three-phase geared motor connected to mains voltage. This type of operation provides maximum heat recovery when the exchanger is in operation. When connecting the motor, the installation should be provided with overcurrent protection. Motor data - Constant speed TCC Motor output Voltage Current Size W V A 05-12 90 3 230 0,6 3 400 0,4 18-96 180 3 230 1,2 3 400 0,7 150 550 3 230 2,8 3 400 1,6 Variable Speed The heat exchanger section TCC is fitted with an electronic VARIMATIC speed controller and a geared motor which together constitute a complete drive system for continuously variable control of the speed of the heat exchanger. The system is supplied with ready-mounted internal electrical connections. The VARIMATIC speed controller contains the following functions: The speed controller can be connected to the following variable control voltages: 0-10 V DC, 2-10 V DC, 0-20 ma DC, 4-20 ma DC and 0-20 V phase cut. The rated voltage is 1 x 230 V. The controller has a built-in safety switch for over- and undervoltage from the mains. The VARIMATIC system also has a built-in overload protector to safeguard the motor. A timer which automatically turns the rotor 15 o at 5-minute intervals. This function is used to purge the rotor outside normal operating hours. A rotary monitor which monitors the operation of the rotor, and gives a signal if the rotor should stop unintentionally. This function requires connection to an external alarm. A cooling recovery programme which automatically makes the exchanger rotate when the outdoor temperature exceeds the exhaust air temperature. This function is used primarily in the summer in order to recover cooling energy. This function requires connection to a differential thermostat. Data for Motor and VARIMATIC Speed Controller - Variable Speed VARIMATIC Speed Controller TCC Motor Output Type Voltage Current Fuse Size Type W V A included 05-46 M-872 90 E-872 1 230 1,2 2,0 A 65-150 M-874 250 E-874 1 230 2,7 6,3 A Mains voltage to the VARIMATIC must not be switched off outside normal operating hours, as the timer will then stop functioning. Heat Exchanger Positions V V H H H1 V1 H2 V2 H H3 V V3 Exhaust air Supply air 32
Heat Exchanger Section TCC Supply air after heat exchanger C 30 25 20 15 10 5 0-5 -10-15 -20-25 -30-5 C -10 T supply air before exchanger 0 5 10 50 40 30 C 20 10 90 80 70 0,6 0,8 1,0 1,2 1,4 T exhaust air before exchanger T supply air before exchanger 60 50 Efficiency % q v supply air q v exhaust air 1,6 P, Air 250 Efficiency % q v supply air q = 1,0 v exhaust air 68 72 150 05 08 12 18 30-31 45-46 65-66 95-96 150 76 80 70 84 0,2 0,3 0,5 0,7 1,0 2,0 3,0 5,0 7,0 10,0 15,0 m 3 /s 700 0 0 3000 5000 00 00 50000 m 3 /h q v supply air Example: TCC - 30 Supply air: 2.5 m 3 /s -10 C Exhaust air: 2.5 m 3 /s +20 C P, Air: 170 Efficiency: 73.5% Supply air temperature after heat exchanger: 12 C 33
Heat Exchanger Section TCC 70 35 H C F B C L Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 900 1300 1300 1500 1800 1800 2 2 2600 2600 3000 3000 3800 L 500 500 500 500 500 500 500 500 600 600 600 600 600 F 1050 1050 1050 1300 1500 1500 1800 1800 2 2 2600 2600 3000 C 150 150 75 125 0 150 50 350 150 350 Weight kg 120 150 170 225 305 305 420 420 555 555 770 770 840 Specification TCC - Size - Pos. - Rotor type (E/T, moisture transferring/non-moisture transferring) - Rotor wheel (S/K, standard/corrosion-resistant) - Drive system (A/B, constant/variable) Example: TCC - 30 - H1 - T - S - B 34
Heat Exchanger Section TCQ T he heat exchanger section TCQ is a diagonally positioned cross-flow heat exchanger. The section is made of the same sturdy frame profiles and well-insulated casing elements as the TC unit. The TCQ is used in cases where there are special requirements as regards separation between the two air flows, e.g. to avoid odours being carried over to the supply air. The TCQ is also used in cases where the transfer of moisture from the exhaust air is undesirable, e.g. in connection with dehumidification systems. With the heat exchanger section TCQ, efficiency levels of 60-70 % can be achieved in air handling units. In swimming baths, etc. where condensation is present, efficiency levels of up to 75% can be achieved, depending on the temperature and the relative humidity. The TCQ has a built-in bypass system for controlling and stopping the heat recovery process. In connection with the bypass system, the crossflow heat exchanger is fitted with a damper, as is the built-in bypass duct. In the event of low outdoor temperatures, the heat exchanger may ice up. This ice can be removed by adjusting the bypass damper or by reducing the speed of the supply air fan. The cross-flow heat exchanger is available in two models: S - Standard model. Used in all installations where there are no aggressive substances in the air. K - Corrosion-resistant model. Used in installations where there are substances which attack aluminium. Suitable for many types of installation in industry, swimming baths, etc. However, many chemical substances do not attack aluminium, so in these cases the heat exchanger can be used without protection against corrosion. This is a problem which should be closely examined in each case. As the TCQ has no moving parts, it is an almost maintenance-free unit. At the bottom of the TCQ section there is a condensation tray for collecting the water condensed in the exhaust air. The drain of the tray should be connected to a water trap with sufficient locking height. See the illustration of its theoretical design on page 40. 35
Heat Exchanger Section TCQ Heat Exchanger Positions Viewed from the Inspection Side Exhaust air, diagonally downwards H1 V1 Heat Exchanger and Bypass 1. Bypass damper 2. Heat exchanger damper 3. Damper motor actuating arm 4. Cross-flow heat exchanger 5. Condensation tray 6. Condensation tray H2 V2 The bypass is controlled by a damper motor actuating the shaft passed through the section s side casing. The torque required for the damper motor is shown on page 34. 1 2 Supply air Exhaust air 3 Exhaust air, diagonally upwards *) 4 H3 V3 H4 V4 6 5 Efficiency Supply air *) Upward-directed exhaust air (positions 3 and 4) should only be used when the moisture content of the exhaust air before the exchanger does not exceed the following values: Supply air before exchanger -20 C -10 C 0 C Exhaust air before exchanger max. g water/kg air Exhaust air 6 8 10 The table indicates the correction factor, k, for the efficiency levels in various conditions of the supply and exhaust air. The correction factor, k, should be multiplied by the proportional figure B 1. B 1 = q v supply air qv exhaust air Correction Factor, k Exhaust air be- Supply air before exchanger fore exchanger -20 C -10 C 0 C 10 C 20 C, 40% RH 1,10 1,20 1,30 1,30 22 C, 50% RH 1,05 1,15 1,25 1,30 25 C, 50% RH 0,95 1,05 1,20 1,30 28 C, 60% RH 0,85 1,00 1,10 1,20 qv supply air The figure B 1 k gives the proportion of qv exhaust air where the required efficiency level sought after can be found in the chart on the next page. 36
Heat Exchanger Section TCQ Supply air after heat exchanger C -10 0 10 20 30 40 35 30 C 25-20 -15-10 -5 C 0 5 10 20 T exhaust air before exchanger T supply air before exchanger 15 10 T supply air before exchanger Efficiency % 50 55 60 65 70 75 80 q v supply air q v exhaust air 1,4 1,3 1,2 1,1 1,0 0,9 0,8 0,7 150 46-66-96 45-65-95 18-30-31 12 05-08 P, Air 400 300 250 31 46 66 96 150 05 08 12 18 30 45 65 95 150 80 0,2 0,3 0,5 0,7 1,0 2,0 3,0 5,0 7,0 10,0 15,0 m 3 /s q v supply air 700 0 0 3000 5000 00 00 50000 m 3 /h Permissible Pressure Difference Across Heat Exchanger Example: TCQ - 30 Supply air: 2.25 m 3 /s -10 o C Exhaust air: 2.70 m 3 /s +20 o C 40% RH P, supply air: 190 P, exhaust air: 255 Max. P = 1500 P B 1 = 2.25 = 0.833 2.70 Correction factor: 1.20 Efficiency: 64% Supply air temperature after heat exchanger: 9 o C 37
Heat Exchanger Section TCQ 35 35 H 70 F RG L F RG - condensation tray B Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 900 1300 1300 1500 1800 1800 2 2 2600 2600 3000 3000 3800 L 900 900 1050 1300 1500 1500 1700 1700 1900 1900 2400 2400 2950 F 225 225 260 325 400 400 450 450 500 500 625 625 750 RG 1" 1" 1" 1" 1¼" 1¼" 1¼" 1¼" 1½" 1½" 1½" 1½" 2" Weight kg 110 130 160 220 295 350 460 560 620 750 960 1 1820 Torque (Nm) /Size 05 08 12 18 30 31 45 46 65 66 95 96 150 - - - 3 6 6 9 9 12 13 17 18 24 500-3 4 5 8 8 12 12 15 16 20 21 28 0 3 4 5 7 10 10 14 14 18 19 23 24 32 This table shows the (minimum) torque necessary for the performance of the damper motor with varying pressure drops across the damper. Specification TCQ - Size - Pos. - Exchanger model (S/K, standard/corrosion-resistant). Example: TCQ - 30 - H1 - S 38
Heat Exchanger Section TCR T he TCR is is used to make a heat recovery system with run-around coil heat exchangers, and consists of an air heater section for the supply air and a cooler section for the exhaust airflow. The two sections are interconnected by means of a closed circuit in which a mixture of water and glycol circulates. The heat in the exhaust air is transferred to the supply air via the liquid, which thus preheats the supply air to a set temperature depending on the outdoor temperature and the efficiency level. The TCR run-around coil heat exchangers are used where the two airflows in the system are completely separated from each other, e.g. on two floors of a building, or where it is impossible to make the two airflows meet. The TCR heat exchanger section is fitted with a finned heat exchanger made of copper tubes and aluminium fins. When the outdoor temperature is low, the capacity of the system can be fully utilised. It will normally be necessary to supply extra heat from a postheating coil. For a large part of the year, the system will be able to supply all the heat required. It will therefore be necessary to control the capacity. This can be done by starting and stopping the pump, or by using a shunt system which leads a greater or lesser volume of the liquid around the heatemitting fin coil. In the event of extremely low outdoor temperatures, the risk of the condensation in the exhaust air freezing can be counteracted by fitting a temperature sensor on the cold side of the coil. The sensor can be used to control the shunt or a return damper incorporated into the system. The exhaust air section is fitted with a condensation tray at the bottom. The condensation is drained away through an outlet in the side. The outlet is connected to a water trap with sufficient locking height. See page 40. The heat exchanger is available in two models: S - Standard model. Used in all installations where there are no aggressive substances in the air. K - Corrosion-resistant model. Used in installations in which aggressive substances that attack aluminium are present. Suitable for many types of installation in industry, swimming baths, etc. The TCR can be supplied with a built-in droplet eliminator in the exhaust air section. A: Without droplet eliminator B: With droplet eliminator 39
Heat Exchanger Section TCR Sizing ge 41 contains charts for sizing a heat recovery system with two TCR sections. The charts are meant as a guide, and intended for an initial determination of the heat recovery data. The ultimate calculation is made in each individual case according to Danvent s sizing programme. The charts apply under the following conditions: T supply air : -10 C T exhaust air : 20 C 50% RH Ethylene glycol mixture: 30% The pressure drop on the air side, P, Air, indicates the pressure drop across each section. Data concerning the pressure drop on the liquid side, the volume of liquid circulated, etc., are calculated according to Danvent s sizing programme.. The chart below shows the supply air temperature after the heat exchanger. T exhaust air before exchanger T supply air before exchanger 50 45 40 35 30 C 25 T supply air before exchanger - 25-20 - 15-10 - 5-0 C 5 10 20 15 10 40 50 60 70-10 0 10 20 30 Effiency % Supply air after heat exchanger C Sizing of the Water Trap The drain pipes of components and humidifiers in which condensation occurs must always be fitted with water traps. For the water traps to function correctly, thus ensuring problem-free drainage of the water, the design and closing height of the water traps must be sized correctly. Unit with Negative Pressure Unit with Positive Pressure H1 H2 H1 H2 Negative pressure P () Positive pressure P () Negative H1 H2 Pressure P Min. 500 mm 40 mm 750 150 mm 55 mm 0 190 mm 70 mm Positive H1 H2 Pressure P Min. 500 90 mm 65 mm 750 120 mm 90 mm 0 150 mm 120 mm 40
Heat Exchanger Section TCR Exhaust air section Max. recommended condensation X without droplet eliminator Effiency % 40 45 50 55 60 65 70 g water/kg air 0,5 1 2 3 4 1,3 1,2 1,1 1,0 0,9 0,8 0,7 q v supply air q v exhaust air E 22 E 20 E 18 05 08 12 18 30 45 31 65 46 95 66 150 96 0,2 0,3 0,5 0,7 1,0 1,5 2,0 3,0 5,0 7,0 10,0 15,0 700 0 0 3000 5000 00 00 50000 m 3 /s q v supply air m 3 /h Supply air Exhaust air P, air E 22 E 20 E 18 drop elim E 22 E 20 E 18 50 150 250 300 mm H 2 0 5 10 15 20 25 30 50 150 250 300 350 400 mm 2 5 10 15 20 25 30 35 40 H 2 0 According to the I-X chart, 1.6 g water/kg air is condensed in the exhaust air. As this is less than the 2.2 g/kg indicated in the above chart, a droplet eliminator is not required. Supply air temperature after heat exchanger: 7 o C Example: TCR - 30 - E22 Supply air: TCR - 30-1 - E 22 1.7 m 3 /s - 10 o C Exhaust air:tcr - 30-2 - E22 - A 1.7 m 3 /s 20 o C 50% RH q v supply air q = 1.0 v exhaust air Efficiency: 57% P, supply air: 145 P, exhaust air: 170 41
Heat Exchanger Section TCR 35 35 Pos. V Pos. H H RG B 120 L RG - condensation tray, only on exhaust air section Dimensions and Weight Size 05 08 12 18 30 31 45 46 65 66 95 96 150 B 750 750 900 1050 1300 1500 1500 1700 1700 1900 1900 2300 2300 H 450 650 650 750 900 900 1050 1050 1300 1300 1500 1500 1900 L 600 600 600 600 600 600 600 600 600 600 600 600 600 RG 1" 1" 1" 1" 1¼" 1¼" 1¼" 1¼" 1½" 1½" 1½" 1½" 1½" Weight in kg exc. liquid E18 65 85 105 125 160 185 205 235 270 300 335 405 460 E20 70 95 115 135 180 205 230 260 300 335 380 460 530 E22 75 125 145 225 250 285 330 370 425 575 600 Specification Supply air: TCR - Size - Pos. - 1 - Output rate - Exchanger model (S/K, standard/corrosion-resistant) Exhaust air: TCR - Size - Pos. - 2 - Output rate - A/B (without/with droplet eliminator) - Exchanger model (S/K, standard/corrosion-resistant) Example: TCR - 30 - V - 1 - E22 - S Example: TCR - 30 - H - 2 - E22 - A - S 42
Heat Exchanger Section TCJ T he heat exchanger section TCJ is a heat recovery system made up of heat pipes. The section is made of the same sturdy frame profiles and well-insulated casing elements as the TC unit. The TCJ is used in cases where the two airflows need to be kept completely separate, e.g. to avoid odours being carried over from the exhaust air to the supply air. The TCJ is also well-suited to cases where the transfer of moisture from the exhaust air to the supply air is undesirable. With the heat exchanger section TCJ, efficiency levels of 60-70 % can be achieved in air handling units, depending on the operating conditions and the moisture content of the exhaust air. The heat exchanger is made up of a large number of heat pipes with aluminium fins. There is a sealed plate in the middle of the heat exchanger, ensuring separation of the two airflows. Heat pipes are completely closed aluminium pipes filled with the environment-friendly cooling agent HFC 134A. The heat exchanger has a high net efficiency level, as the process does not use any extra energy. As the heat exchanger does not contain any moving parts, it has the advantage of being maintenancefree. The heat exchanger has a built-in bypass system for controlling and stopping the heat recovery process. In connection with the bypass system, the heat pipe heat exchanger is fitted with a damper, as is the built-in bypass duct. The heat exchanger is available in two models: S - Standard model. Used in all installations where there are no aggressive substances in the air. K - Corrosion-resistant model. Used in installations where aggressive substances that attack aluminium are present. Suitable for many types of installation in industry, swimming baths, etc. There is a condensation tray fitted at the bottom of the exhaust air section. The condensation is drained away through an outlet in the side. The outlet is connected to a water trap with sufficient locking height, see page 40. The TCJ can also be supplied with an built-in droplet eliminator in the exhaust air section. A: Without droplet eliminator B: With droplet eliminator The regular temperature distribution of the exhaust air in this type of exchanger ensures that the exchanger only ices up in the event of extremely low outdoor temperatures. 43