Heating Trench Fan coil VKN TECHNICAL catalogue 2016_01_USA

Transcription

1 Heating Trench Fan coil VKN TECHNICAL catalogue 16_1_USA

2 TURBO Trench Heater with V Fan TURBO The future of any heating systems is laying among solutions that work well with low temperature renewable sources of heating energy, also by achieving a high level of system energy efficiency. A solid technical background for this product Fan Assisted Trench Heater type Turbo has been created during a long term R&D process conducted together with Warsaw Technical University, Cracow Technical University, Lublin Technical University and Polish Scientific Academy, whereas its brand new design through innovative construction has achieved better hydraulic and heating characteristic. During the process of optimization R&D, a high level heating emitter has been achieved, whereas it would raise an energy efficiency of the heat distribution throughout the building but also increasing an effectiveness of low temperature heating systems since it has been working along with them. Fan Assisted Trench Heater TURBO has been design bearing in mind being suitable for spacious interiors having many glazed façades. Using a modern fan motor that will use low energy consumption feature and producing very low noise level would not distract any room occupants whilst precise and simplified control panel would enable easy and exact adjustment of desired temperature. Using an economical fan resulted with designing heating emitter producing more output with shorter adjustment reaction time. Additionally low thermal inertia and using advanced electronic control resulted an optional savings on running costs up to % in a heat season. Trench Heater Turbo may be a perfect solution for low supply temperature heating systems or high condensation wet installations, also is available in high supply pressure versions. Relatively low depth of trench required for such a heating emitter would allow to put trench heater in floor/ceiling space of any storey. Evenly distributed heat in a room is one of many significant benefits of using trench heating. 37

3 TURBO Benefits of fan assisted trench heating ENERGY SAVINGS Fan Assisted Trench Heaters Turbo have been equipped with noiseless and energy efficient fans. Such a solution ena-bled a design of exceptionally ef-fective heating emitter that may be suitable to use in every single room. Big advantage of this type of trench heaters is their high working dynamic, quick coping with any changes in room thermal conditions, even warm air distribution throughout a room and low running costs. Low thermal inertia and using advanced electronic control re-sulted an optional savings on operating costs up to % in a heat season. Fan assisted trench heater is a perfect match for low temperature water installations and heating systems. FUNCTIONALITY Trench heating distributes heating in perfect and discrete manner inside spacious and elegant interiors that having usually large glass façades. The only visible element of trench heating is an elegant grille that is composed into the floor that covers trench and coil elements. Easy access through taking off a grille would enable easy access for cleaning or maintenance of a trench heating. COMFORT Trench heating are the ones that among many types of heating emitters would react in the quickest way for any changes of any thermal requirements in a room. This quick adaptation capacity allows to avoid any room overheating. Trench heating that are placed along the outskirts of a building would create a natural air curtain that may separate warm and cold air and prevents floating cold air at the low, floor base level. Using trench heating allows to eliminate of the moisture condensation from the surface of glass façades. DURABILITY There are high quality materials being used for designing copper aluminum coil, that also warrants corrosion resistance but also protection against low quality of water from the boiler. Due to using a raw steel with hot dip zm coating our heating emitters are usually more corrosion resistant. 38

4 The equipment of Verano heater TURBO STANDARD equipment: trench (casing) made of hot-dip galvanized steel sheet with zinc magnesium coating, powder painted in black RAL 9, copper and aluminium heat exchanger with air vent, V DC fan with EC motor, fan cover, connection space cover, water connection xit 3/, fixing anchors, leveling brackets, ADDITIONAL equipment: trench (casing) painted in any RAL colour, frame around the heater casing, L or F type made of natural aluminum, powder coated in RAL, anodized or can be done as wood imitation aesthetic grille made of aluminum (natural, anodized or powder painted in any RAL color), natural wood (oak, ash, beech, merbau, jatoba) or stainless steel installation cover to protect against damage during transport and installation Construction of Verano heater Grille Airflow targeting sheet Fan cover Heat exchanger (copper-aluminium) Connection space cover Fan Heat exchanger fixing element Air vent Supply and return connection for central heating Fixing anchor Holes for the connection pipes Additional hole Trench (casing) Leveling bracket 39

5 TURBO Dimensions Trench height (H) Trench width (W) Trench lenght (L) Order code -1/ to -3/ inch 9-7/3 to 13-3/ inch 9-1/ to 139-3/ inch -H/W/L - fin type - in mm Heaters are also available with a non standard/custom lenghts (NS) Heaters height of. inch are only available with SS grille, other will increase heater high to 3 inch / /.7 3..,3 (3.3) / /3. 3.., 3 ( 3. 3 ) / /

6 Installation manual TURBO V Fan Coil trench heating is assembled to keep coil room side and to keep fan motor on a window side. In order to avoid causing any heat loss through the floor space, trench casing should be thermo insulated from outside of the trench casing. When assembling fan assisted trench heating unit you should remember to provide proper acoustic insulation in a spa-ce created by a trench void and through all layers of a floor. Any empty space in a ceiling/floor void may result louder work of fan motors of trench heating units. In order to avoid any longitudinal deflection (deflection of trench casing borders) during concrete coating you should use some elements that will expand a trench casing. Inside Turbo trench heating units there are leveling and mount brackets, that will also enable fitting trench casing into a floor. Holders that would keep the coil tight during the transport, are secured by screws to the trench casing. Before any fitting work you should unscrew screws that hold heat exchanger frame and implicitly take off the fan from a trench. When trench casing is fitted you need to tighten screws. In a trench casing there are four holes two of them are put at the same height as mounting brackets of a heat exchanger, third hole is as a spare one (i.e. for any fitting in any connections or capillary etc.). It is forbidden to lead any water connections along the coil inside the trench casing, as it may harm temperature float by limiting an air exchange inside a trench. Connections of coil have internal thread of ¾. It could be connected by straight or angled thermostatic valves. There should be free space remained (for any connec tions, valves etc.) for c.a. 7 inch. It is not possible to turn around the coil heat exchanger for 18 according to its instal-lation. As an alternative it is possible to manufacture, according to any demand a trench heater having right side (R) or left side (L) valve connection. The side of valve connection to the water installation sho-uld be specified once the specific trench heating is being ordered. Dilatation e.g. cork Grille Frame e.g. type L Fixing anchor Flooring Concrete PE foil Hard polystyrene Concrete slab Leveling-fixing anchor Low expansion foam Leveling bracket An example of assembly a fan assisted trench heater L 76-3/ inch (side view) 1

7 TURBO The control options of Verano trench heater fan assisted type Thermostatic valve must be installed on the supply pipe, and the return valve on the return pipe. The electric-thermal servo-motor is installed directly on the thermostatic valve. Servo-motor must be connected to the room controller via a two-wire cable. Room controller allows you to open and close the valve and control the fan speed. matically turns on and off the fan when the room temperature drops below or goes up the set temperature on the thermostat. The controller with a built-in sensor measures the temperature in the room and maintains its value at the set-point by controlling the -position servo-motor. Adjusting the heaters is done automatically by using the room controller The system auto- Type TURBO -7,8//L-1-7,8/3/L-1-9//L-1-9/3/L-1-1//L-1-1/3/L-1 Trench length [inch] Number of fan Number of fan motors Fan voltage [VDC] Maximum current [A] Maximum power consumption of EC fan [W],3,,6,9 1, 1, 1, 1,6 8, 1,8 1, 1,6, 8,8 37, 39,6 Number of fan Number of fan motors Fan voltage [VDC] Maximum current [A] Maximum power consumption of EC fan [W] 9-1/ -1/ / 9-1/ 18-1/ /, 1, 1,1,,1,,6 3, 1,8, 6, 8,,,8 63,6 76,8

8 TURBO 9-1/ -1/ / 9-1/ 18-1/ / 3

9 TURBO Electrical connection instruction Attention! Electrical connections can be only done by appropriate licensed person and in compliance with electric standards. Voltage can be turned on only after through checking of whole connection diagram. It is prohibited to supply TURBO directly from the main voltage of 1-8V. G - G + max 1mA Y max 1mA Y1 RDG 16 T G VDC G - + 1A PE G G -1V M 1~ M-1 Fan + red - black white - stearing G STP 63 Y electro-thermal G servo-motor V type ON 1 3 Attention! Switch (from the opposite side of the controller) needs to be turned on position 1 Wiring diagram for the RDG16T controller L N PE +V GND Room controller L M Fan Q1 Q Q3 Q Valve L1 L L3 Z N FAN.REG. GND +V V type +V REG GND +V REG GND +V GND +V GND M Fan Valve V Wiring diagram for the other controllers

10 Control devices for trench VK 1, wall-mounted and floor-mounted - wireless system Name Description Net price Room temperature controller RF1B Room temperature controller RF1C Room temperature controller RFB Room temperature controller RFC Wireless digital temperature controller in1, white, flush-mounted, 1 V Wireless digital temperature controller in1, black, flush-mounted, 1 V Wireless digital temperature controller in1, white, wall-mounted, 1 V Wireless digital temperature controller in1, black, wall-mounted, 1 V Central strip L8 Wireless central strip to control 8 heating zones L module Expansion Module for wireless central strip L8, zones Thermostatic head GM1 Wireless thermostatic head M3x1,, MINI version Network Repeater RE 1 ZigBee Repeater Network Network Coordinator C1 ZigBee Network Coordinator B3 Internet Gateway Internet Gateway Thermostatic heads for VERANO Floor-mounted and LST Wall-mounted Convectors Name Description Thermostatic head SH Diamant White Cat. No. 611 Thermostatic head SH Diamant Plus White-Chrome Cat. No Thermostatic head SH Brillant White Chrome Cat. No. 61 Thermostatic head SH Brillant White Cat. No. 6 Thermostatic head SH Brillant Chrome Cat. No. 63 Thermostatic head SH Brillant Satin Cat. No. 6 Schlösser thermostatic heads with connection thread M3x1. cooperate with all Schlösser valves as well as with other valves with inserts M3x1. and closing dimension 11, mm Thermostatic head SH Brillant Steel Cat. No. 6 Thermostatic head SH Brillant Gold Cat. No. 67 Programmable TRV GP6 Fully programmable thermostatic head

11 Control devices for VERANO Trench Heaters Fan Assisted type TURBO and Climaconvectors type CVK/CVKS and CVK Name Description Straight thermostatic valve type Siemens VDN 1 Angular thermostatic valve type Siemens VEN 1 Straight return valve type Siemens ADN1 Angular return valve type Siemens AEN1 Straight thermostatic valve type Schlösser 61 Angular thermostatic valve type Schlösser 61 Straight return valve type Schlösser 613 Angular return valve type Schlösser 613 Thermal servo-motor type Siemens STA 73 or STA 73/ Cable type Siemens ASY3L Valve diameter 1 DN Valve diameter 1 DN Valve diameter 1 DN Valve diameter 1 DN Valve diameter 1 DN Valve diameter 1 DN Valve diameter 1 DN Valve diameter 1 DN Supply voltage V AC/DC, -position control. STA73 with 1 m connection cable, STA73/ need a separate cable ASY3L Connection cable for STA 73/ control mode 1 V, length of m, 3 m and m, -position control Verano controller type VER-B (White) The control mode 1V or ON / OFF (valve V). Ability to work in heating or cooling mode. Operating modes: comfort, economical and security. Verano controller type VER-C (Black) Room temperature controller type Siemens RDG16T Rail Power Supply Z3-VDC Rail Power Supply Z6-VDC Rail Power Supply Z1-VDC Rail Power Supply Z1-VDC Rail Power Supply Z-VDC Rail Power Supply Z8-VDC The control mode 1V or ON / OFF (valve V). Ability to work in heating or cooling mode. Operating modes: comfort, economical and security. Power supply V AC control output 1 V DC, for fan with ECM (electronically commutated motor). Automatic or manual heating /cooling. Fan speed is activated Input voltage 1-V AC, Input frequency -6Hz, Output voltage V DC, Max output current 1,A Input voltage 1-V AC, Input frequency -6Hz, Output voltage V DC, Max output current,a Input voltage 1-V AC, Input frequency -6Hz, Output voltage V DC, Max output current 3,8A Input voltage 1-V AC, Input frequency -6Hz, Output voltage V DC, Max output current A Input voltage 1-V AC, Input frequency -6Hz, Output voltage V DC, Max output current 1A Input voltage 1-V AC, Input frequency -6Hz, Output voltage V DC, Max output current A

12 TURBO. to 3 inch height -7.8//L-1 DIMENSIONS UNIT [inch] Trench height (H) -1/ (3) Trench width (W) 9.8 Please remember: Order code for heaters type TURBO : -H/W/L - fin type where: H - Trench height [mm] W - Trench width [mm] L - Trench length [mm] -1/ ( 3 ).7 1/ Grille width (Wg) 1-3/ Trench length (L) 9-1/ 139-3/ Fin type 1 CONNECTIONS Connection threads IT 3/ one-sided Heaters height of. inch are only available with a SS grille, other will increase heater height to 3 inch Lk Trench lenght (L) Lenght of the heat exchanger ribbed part (Lhe) Side connection to be choosen Fan from the window side Standard Right P, optional Left L standard ACCESORIES Grille H=3/ inch roll-up/linear/modular Aluminium frame type L or F Assembly cover on request L [inch] Ts/Tr F 9-1/ -1/ / 9-1/ 18-1/ / / /1 16/1 CONSULT SOFTWARE AND MDL FOR OTHER CONDITIONS 1/1 11/ The standard heat output does not include 1% for piping pick-up, according to DIN EN -: 13 for room air temperature Ti = 6 F 1 corresponds to the control voltage of,v, corresponds to the control volt 7V, 3 corresponds to the control voltage 1V. -7.8/3/L-1 DIMENSIONS UNIT [inch] Trench height (H) -1/ (3) Trench width (W) 1-3/ Please remember: Order code for heaters type TURBO : -H/W/L - fin type where: H - Trench height [mm] W - Trench width [mm] L - Trench length [mm] -1/ ( 3 ).7 1/ 1-3/ 13-3/ 7-7/8-7/8 Grille width (Wg) 13-3/ Trench length (L) 9-1/ 139-3/ Fin type 1 CONNECTIONS Connection threads IT 3/ one-sided Heaters height of. inch are only available with a SS grille, other will increase heater height to 3 inch Lk Trench lenght (L) Lenght of the heat exchanger ribbed part (Lhe) 9 Side connection to be choosen Fan from the window side Standard Right P, optional Left L standard 1-3/ 13-3/ -7/8 ACCESORIES Grille H=3/ inch roll-up/linear/modular Aluminium frame type L or F Assembly cover on request L [inch] Ts/Tr F 9-1/ -1/ / 9-1/ 18-1/ / / /1 16/1 CONSULT SOFTWARE AND MDL FOR OTHER CONDITIONS 1/1 11/ The standard heat output does not include 1% for piping pick-up, according to DIN EN -: 13 for room air temperature Ti = 6 F 1 corresponds to the control voltage of,v, corresponds to the control volt 7V, 3 corresponds to the control voltage 1V.

13 DIMENSIONS UNIT [inch] Trench height (H) 3-1/ 3-1/ inch height -9//L-1 TURBO Trench width (W) 9.8 Grille width (Wg) 1-3/ Trench length (L) 9-1/ 139-3/ Fin type 1 CONNECTIONS Connection threads IT 3/ one-sided 3-1/ 3/ 1/ Please remember: Order code for heaters type TURBO : -H/W/L - fin type where: H - Trench height [mm] W - Trench width [mm] L - Trench length [mm] Side connection to be choosen Fan from the window side Standard Right P, optional Left L standard Trench lenght (L) Lk Lenght of the heat exchanger ribbed part (Lhe) ACCESORIES Grille H=18 mm Aluminium frame Assembly cover roll-up/linear/modular type L or F on request L [inch] Ts/Tr F 9-1/ -1/ / 9-1/ 18-1/ / / /1 16/1 CONSULT SOFTWARE AND MDL FOR OTHER CONDITIONS 1/1 11/ The standard heat output does not include 1% for piping pick-up, according to DIN EN -: 13 for room air temperature Ti = 6 F 1 corresponds to the control voltage of,v, corresponds to the control volt 7V, 3 corresponds to the control voltage 1V. DIMENSIONS UNIT [inch] Trench height (H) 3-1/ -9/3/L-1 Trench width (W) 1-3/ Grille (Wg) 13-3/ Trench length (L) 9-1/ 139-3/ Fin type 1 CONNECTIONS Connection threads IT 3/ one-sided 3-1/ 3/ 1/ 1-3/ 13-3/ 7-7/8-7/8 Please remember: Order code for heaters type TURBO : -H/W/L - fin type where: H - Trench height [mm] W - Trench width [mm] L - Trench length [mm] Side connection to be choosen Fan from the window side Standard Right P, optional Left L standard Lk Trench lenght (L) Lenght of the heat exchanger ribbed part (Lhe) 9 ACCESORIES Grille H=18 mm roll-up/linear/modular 1-3/ 13-3/ -7/8 Aluminium frame type L or F Assembly cover on request L [inch] Ts/Tr F 9-1/ -1/ / 9-1/ 18-1/ / / /1 16/1 CONSULT SOFTWARE AND MDL FOR OTHER CONDITIONS 1/1 11/ The standard heat output does not include 1% for piping pick-up, according to DIN EN -: 13 for room air temperature Ti = 6 F 1 corresponds to the control voltage of,v, corresponds to the control volt 7V, 3 corresponds to the control voltage 1V. 7

14 TURBO -3/ inch height -1//L-1 DIMENSIONS UNIT [inch] Trench height (H) -3/ Please remember: Order code for heaters type TURBO : -H/W/L - fin type where: H - Trench height [mm] W - Trench width [mm] L - Trench length [mm] -3/ 3/ 1/ 1-3/ Trench width (W) 9.8 Grille width (Wg) 1-3/ Trench length (L) 9-1/ 139-3/ Fin type 1 CONNECTIONS Connection threads IT 3/ one-sided Trench lenght (L) Lk Lenght of the heat exchanger ribbed part (Lhe) 9 Side connection to be choosen Fan from the window side Standard Right P, optional Left L standard ACCESORIES Grille H=3/ inch Aluminium frame Assembly cover roll-up/linear/modular type L or F on request L [inch] Ts/Tr F 9-1/ -1/ / 9-1/ 18-1/ / / /1 16/1 CONSULT SOFTWARE AND MDL FOR OTHER CONDITIONS 1/1 11/ The standard heat output does not include 1% for piping pick-up, according to DIN EN -: 13 for room air temperature Ti = 6 F 1 corresponds to the control voltage of,v, corresponds to the control volt 7V, 3 corresponds to the control voltage 1V. -1/3/L-1 DIMENSIONS UNIT [inch] Trench height (H) -3/ Please remember: Order code for heaters type TURBO : -H/W/L - fin type where: H - Trench height [mm] W - Trench width [mm] L - Trench length [mm] / 13-3/ 7-7/8-7/8 Trench width (W) 1-3/ Grille (Wg) 13-3/ Trench length (L) 9-1/ 139-3/ Fin CONNECTIONS Connection threads IT 3/ one-sided Lk Trench lenght (L) Lenght of the heat exchanger ribbed part (Lhe) 9 Side connection to be choosen Fan from the window side Standard Right P, optional Left L standard 1-3/ 13-3/ -7/8 ACCESORIES Grille H=3/ inch roll-up/linear/modular Aluminium frame type L or F Assembly cover on request L [inch] Ts/Tr F 9-1/ -1/ / 9-1/ 18-1/ / / /1 16/1 1/1 11/ The standard heat output does not include 1% for piping pick-up, according to DIN EN -: 13 for room air temperature Ti = 6 F 1 corresponds to the control voltage of,v, corresponds to the control volt 7V, 3 corresponds to the control voltage 1V.

15 How to choose the most efficient heater? TURBO Correction factors for Verano heaters type TURBO taking into account the type of grille. GRILLE AIR FLOW CORRECTION FACTOR Aluminium grille closed profile 61,6% 1, Aluminium grille I-beam profile 7,6 %,99 Wooden grille %,97 Modular grille 6,8% 1, Linear grille 8%,99 Stainless steel grille 61,% 1, Water capacity [dm 3 ] H = 78, 9, 1 mm L [mm] W [mm] ,1,6,38,1,63,7,88,99 3,9,,7 1, 1, 1,8 1,7 1,99 1

16 TURBO Pressure looses [Pa] Pressure drop in Pa L=3 L=31 L=7 L=3 L=19 L=1 L=11 L=7 Pressure drop in Pa L=3 L=31 L=7 L=3 L=19 L=1 L=11 L= Water flow in kg/h Water flow in kg/h Width: 9-7/3 inch Width: 13-3/inch

17 Sound pressure level Lp (A) [db] TURBO Heater type Control voltage U[V] Trench TURBO lenght [mm] 9-1/ -1/ / 9-1/ 18-1/ / ,8//L-1-7,8/3/L-1-9//L-1-9/3/L-1-1//L-1-1/3/L , , 3, , 38, ,1 1 3, ,8 3, ,8 9, ,1 3, ,8, ,8 8,8 Due to the low sound pressure levels compared to the background measurement - value < db, which is out of the hearing values range, are not shown in the table. Sound power level Lw (A) [db] Heater type Control voltage U[V] Trench TURBO lenght [mm] 9-1/ -1/ / 9-1/ 18-1/ / ,8//L-1-7,8/3/L-1-9//L-1-9/3/L-1-1//L-1-1/3/L , , 38, , 6, ,1 9 1, 1, ,8 31, ,8 37, ,1 3, ,8,8 1 6,8 6,8 Due to the low sound power levels compared to the background measurement - value <8dB, which is out of the hearing values range, are not shown in the table. 3

18 TURBO Heat output and sound pressure Heat output and sound pressure for Verano heaters type Turbo depending on the control voltage for Ts / TR / Ti = 7/6/ C The charts show the changes of the heater output Q [W] and the sound pressure level Lp [db] as a function of control voltage U [V] for the individual heaters TURBO. Please note! Example of the calculation of the heater output and sound pressure (for TURBO and CVK) for various values of the voltage is located on page 71 Q [W] Lp [db] U [V] Q dla 7 Q dla 11 Q dla 1 Q dla 19 Q dla 3 Q dla 7 Q dla 31 Q dla 3 Lp dla 7 Lp dla 11 Lp dla 1 Lp dla 19 Lp dla 3 Lp dla 7 Lp dla 31 Lp dla 3 TURBO -7,8//L Q[W] U[V] Q dla 7 Q dla 11 Q dla 1 Q dla 19 Q dla 3 Q dla 7 Q dla 31 Q dla 3 Lp dla 7 Lp dla 11 Lp dla 1 Lp dla 19 Lp dla 3 Lp dla 7 Lp dla 31 Lp dla 3 Lp[dB] TURBO -7,8/3/L-1

19 Heat output and sound pressure TURBO Q[W] U[V] Lp[dB] Q dla 7 Q dla 11 Q dla 1 Q dla 19 Q dla 3 Q dla 7 Q dla 31 Q dla 3 Lp dla 7 Lp dla 11 Lp dla 1 Lp dla 19 Lp dla 3 Lp dla 7 Lp dla 31 Lp dla 3 TURBO -9//L-1 Q[W] U[V] Lp[dB] Q dla 7 Q dla 11 Q dla 1 Q dla 19 Q dla 3 Q dla 7 Q dla 31 Q dla 3 Lp dla 7 Lp dla 11 Lp dla 1 Lp dla 19 Lp dla 3 Lp dla 7 Lp dla 31 Lp dla 3 TURBO -9/3/L-1

20 TURBO Heat output and sound pressure Q[W] U[V] Lp[dB] Q dla 7 Q dla 11 Q dla 1 Q dla 19 Q dla 3 Q dla 7 Q dla 31 Q dla 3 Lp dla 7 Lp dla 11 Lp dla 1 Lp dla 19 Lp dla 3 Lp dla 7 Lp dla 31 Lp dla 3 TURBO -1//L-1 Q[W] U[V] Lp[dB] Q dla 7 Q dla 11 Q dla 1 Q dla 19 Q dla 3 Q dla 7 Q dla 31 Q dla 3 Lp dla 7 Lp dla 11 Lp dla 1 Lp dla 19 Lp dla 3 Lp dla 7 Lp dla 31 Lp dla 3 TURBO -1/3/L-1 6

21 VK 1 / TURBO ANGLED & CURVED To heat the room of irregular shape, such as circle or semi-circle and at the same time not to disturb its aesthetics and harmony ideally product will be angled and curved heaters available with or without fan. The angle of 9 Bevels Indentation Corner (empty trench) Total lenght of the trench (Lt) Lenght of the trench heater (L) Total lenght of the trench (Lt) Lenght of the trench heater (L) Lenght of the trench heater (L) Grille corner so. herringbone Total lenght of the trench (Lt) Lenght of the trench heater (L) Lenght of the trench heater (L) Custom angle Lenght of the trench heater (L) Total lenght of the trench (Lt) Lenght of the trench heater (L) Total lenght of the trench (Lt) Lenght of the trench heater (L) Curved The length of the external arc B External radius (Re) H W Internal radius (Ri) 7

22 By: MDL Solutions MDL SOLUTIONS NATIONAL DISTRIBUTOR CANADA/ USA 7 UPPER MIDDLE RD, E OAKVILLE, ONTARIO CANADA L6H 3 TEL: ; GENERAL@MDLSOLN.COM Technical catalogue 16_1_USA After completion the edition of the directory on the 1.1.1, may have been some changes in the products listed in. The manufacturer reserves the right to make changes to the design, color and specification. Illustrations may include optional accessories. Printing technology can affect the differences in the forward colors. Please contact MDL for the newest information of Verano products.