IN-LINE DUCT FANS MIXVENT-TD Fan Systems

IN-LINE DUCT FANS MIXVENT-TD Fan Systems NEW TD-EXTRACTOR KIT (see page 175) MIXVENT TD / MIXVENT TD-T MIXVENT TDx2 ACCESSORIES Description Range Construction The MIXVENT system has been designed to compliment the MIXVENT-TD range of in-line fans. All MIXVENT TD fans include the combination of a powerful motor factory matched to a mixed flow impeller. This motor and impeller combination enables the MIXVENT- TD fans to deliver high airflow performances with the minimum of noise generation against high static pressures typically found in ducted ventilation systems. The unique design of the MIXVENT TD and TDx2 support brackets, allows the motor and impeller assembly to be fitted or removed without dismantling the adjacent ducting and therefore facilitating any installation or maintenance. Classic centrifugal In-line centrifugal MIXVENT flow The internal aerodynamic design of MIXVENT- TD fan enables the unit to generate large air volumes and pressures with the minimum of in-duct or radiated noise. An additional advantage of the MIXVENT TD fans is that they are fitted with direct connection two speed motors as standard. In addition, all motors are suitable for speed control regulation using electronic or auto-transformer controllers. The MIXVENT-TD fans offer the ideal in-line duct fan solution for a wide range of HVAC ventilation applications. The MIXVENT system includes 3 ranges of products: MIXVENT TD, Single Fan Unit MIXVENT TDx2, Twin Fan Unit MIXVENT TD-T, Twin Fan Unit with Overrun Timer The MIXVENT-TD consists of eight (8) nominal sized in-line fans. All models are specifically designed for direct connection in-line with industry standard diameter circular ducting. The MIXVENT-TDx2 range consists of two MIXVENT TD fans mounted in series to produce almost twice the pressure of a single TD fan. The range consists of 5 nominal fan diameter sizes. The MIXVENT-TD-T consists of a range of five (5) nominal size TD fans (16, 25, 35, 5 and 8) fitted with an Run-On-Timer adjustable between 1 to 3 minutes. (The MIXVENT TD-T range is not suitable for speed control.) Accessories The MIXVENT System includes a specific range of accessories enabling the installation of different combinations of the MIXVENT TD and MIXVENT TDx2 fans, using models 35, 5, 8 and 1. These combinations include: MIXVENT Twin Two MIXVENT TD fans mounted in parallel using the Twin Base Kit. Mounting the fans in parallel produces double the duty of one fan (at the same pressure). MIXVENT Twin x 2 Two MIXVENT TDx2 fans mounted in parallel using the Twin Base Kit. Mounting the fans in parallel produces double the duty of a single TDx2fan (at the same pressure). MIXVENT Twin x 3 MIXVENT-TD and MIXVENT TDx2 mounted in series using the Flange (MBR). The pressure achieved by this arrangement will produce almost three times that of a single unit (at the same ar volume). To compliment the MIXVENT System a range of electrical and additional mechanical accessories are available to complete the most demanding installations. 164 The MIXVENT TD models are manufactured in tough reinforced plastic, except models 16, 1, 13 & 2 which have a steel casing and are finished in a tough epoxy-polyester paint coating. The TD fan duct connection flanges are manufactured from reinforced plastic, except for models 8, 1, 13 & 2 which are constructed from epoxy-polyester coated sheet steel. Impellers The impeller blades are moulded in tough ABS plastic except models 1, 13 and 2 which are constructed from pressed galvanised sheet steel. Motors Models 16, 25 and 35 include: Single-phase, 23V 5Hz, shaded pole induction asynchronous motor with squirrel cage rotor in die cast aluminium. All motors include direct two speed connection and are also suitable for voltage speed control*. Manufactured in accordance to standards UNE 2-113 and CEI 34-1. Class ll electrical insulation (model 16) and Class l (models 25 and 35) IP 44 Protection Class B Motor Insulation with Humidity Protection Safety Thermal Overload Protection (fuse type) Self-lubricating sleeve bearings. Models 5, 8, 1, 13 and 2 include: Single-phase induction asynchronous motor, with permanent capacitor and external rotor in die cast aluminium. All models include direct two speed connection and are also suitable for voltage speed control*. Manufactured in accordance with standards UNE 2-113 and CEI 34-1. Class I electrical insulation. IP 44 Protection Class B Motor Insulation with Humidity protection Thermal Overload Protection (automatic reset type). Sealed For Life, ball bearing assemblies. *Except TD-T models.

MIXVENT-TD / MIXVENT TDx2 Model Reference T D - 8 / 2 N T 1 2 3 4 1 Series reference 2 MIXVENT TD model type (Nom. max. m 3 /hr) 3 Nominal ducting connection diameter (mm) 4 N Standard Model T Model with adjustable Run-On-timer Technical characteristics Nom. Maximum Maximum Duty at Maximum Sound Weight speed absorbed absorbed free operating pressure power at Pa current discharge temperature level* Model Type (r.p.m.) (W) (A) (m 3 /h) ( C) (db(a)) (kg) TD-16/1N 25 35,25 16 4 18 21 23,15 13 4 14 TD-25/1 188 39,26 25 4 28 1475 26,18 185 4 23 TD-35/125 221 56,37 36 4 3 19 4,26 3 4 26 15 25 68,3 535 6 41 TD-5/ 16 185 5,22 4 6 33 TD-8/2N 27 8,35 97 6 41 21 7,3 7 6 36 TD-8/2 245 128,55 88 6 45 24 96,41 665 6 37 TD-1/25 28 155,65 11 6 49 21 85,39 85 6 43 TD- 13/25 252 17,72 13 6 49 199 11,48 95 6 44 TD-2/315 276 35 1,3 199 6 52 2,9 151 6 5 NEW * Radiated sound level measured at 3 m from product casing at free air conditions. Reference 1,4 2, 2, 2,7 4,9 4,9 9,4 9,4 14, T D x 2-8 / 2 N 1 2 3 4 Technical characteristics 165 1 Series reference 2 MIXVENT TD model type (Nom. max. m 3 /h) 3 Nominal ducting connection diameter (mm) 4 New model Nom. Maximum Maximum Duty at Maximum Sound Weight speed absorbed absorbed free operating pressure power at Pa. current discharge temp. level* Model Type (r.p.m.) (W) (A) (m 3 /h) ( C) (db(a)) (kg) TDx2-35/125 263 15 1,12 395 4 36 22 9,58 32 4 31 5,4 15 272 14,6 51 6 48 TDx2-5/ 16 23 1,44 415 6 41 5, TDx2-8/2N 28 165,72 9 6 48 245 14,6 69 6 44 8,7 TDx2-8/2 27 28 1,2 875 6 52 24 18 1,1 75 6 48 8,7 TDx2-1/25 28 3 1,3 12 6 57 21 17,78 85 6 51 18,7 TDx2-13/25 252 34 1,44 132 6 57 199 22,96 98 6 52 18,7 NEW * Radiated sound level measured at 3 m from ducting product at free air conditions.

MIXVENT TD Performance curves Q = Air volume in, m 3 /hr and m 3 /s HS = High speed Pe = Static pressure in mmwg and Pa. LS = Low speed Dry air at 2 ºC and 76 mmhg. Air flow data in accordance with the following standards: UNE 1-212-89, BS 848, Part 1, AMCA 21-85 and ASHRAE 51-1985. 166

MIXVENT TD Performance curves Q = Air volume in, m 3 /hr and m 3 /s HS = High speed Pe = Static pressure in mmwg and Pa. LS = Low speed Dry air at 2 ºC and 76 mmhg. Air flow data in accordance with the following standards: UNE 1-212-89, BS 848, Part 1, AMCA 21-85 and ASHRAE 51-1985. 167

MIXVENT TDx2 Performance curves Q = Air volume in, m 3 /hr and m 3 /s HS = High speed Pe = Static pressure in mmwg and Pa. LS = Low speed Dry air at 2 ºC and 76 mmhg. Air flow data in accordance with the following standards: UNE 1-212-89, BS 848, Part 1, AMCA 21-85 and ASHRAE 51-1985. 168

MIXVENT SYSTEM - COMBINATIONS MIXVENT Twin Components Twin MIXVENT Twin x 2 Twin with back-draft shutter accessories Kit Twin Base-25 + 2 TD -16/1 Kit Twin Base-25 + 2 TD 25/1 Kit Twin Base-35 + 2 TD -35/125 Kit Twin Base-5/15 + 2 TD-5/15 Kit Twin Base-5/16 + 2 TD-5/16 Kit Twin Base-8 + 2 TD-8/2 Kit Twin Base-1 + 2 TD-1/25 Kit Twin Base-1 + 2 TD-13/25 Kit Twin Base-2 + 2 TD-2/315 For back-draft shutter see accessories. Components Kit Twin Base-35 + 2 TDx2-35/125 Kit Twin Base-5/15 + 2 TDx2-5/15 Kit Twin Base-5/16 + 2 TDx2-5/16 Kit Twin Base-8 + 2 TDx2-8/2 Kit Twin Base-1 + 2 TDx2-1/25 Kit Twin Base-1 + 2 TDx2-13/25 Twin x 2 Description Twin x 2 with back-draft shutter accessories For back-drauft shutter see accessories. Kit Twin Base Nominal dimensions of rectangular ducting L B H Model Type L x H (mm) Kit Twin base - 25 28 x 14 Kit Twin base - 35 28 x 14 Kit Twin base - 5 355 x 18 Kit Twin base - 8 4 x 2 Kit Twin base - 1/13 5 x 25 Kit Twin base - 2 63 x 315 The independent operation of two TD or TDx2 fans requires the use of back-draft shutters at the discharge (outlet) in order to prevent the air recycling through a stationary fan. MIXVENT TD x 3 Reference Model Type TDx3-35/125 TDx3-5/15 TDx3-5/16 TDx3-8/2 Components TD-35/125+TDx2-35/125+MBR-35 TD-5/15+TDx2-5/15+MBR-5/15 TD-5/16+TDx2-5/16+MBR-5/16 TD-8/2+TDx2-8/2+MBR-8 TDx3-1/25 TD-1/25+TDx2-1/25+MBR-1 TDx3-13/25 TD-13/25+TDx2-13/25+MBR-1 TD x 3: with MBR connection flange Description Flange MBR One fan only in operation Two fan in operation A B C A B C fan in use: A Direction of flow fan in use A and B or A and C Direction of flow 169

Performance curves Q = Air volume in, m 3 /hr and m 3 /s Pe = Static pressure in mmwg and Pa. Dry air at 2 ºC and 76 mmhg. Air flow data in accordance with the following standards: UNE 1-212-89, BS 848, Part 1, AMCA 21-85 and ASHRAE 51-1985. Pa Pa 6 PeP mmce mmwg 6 MIXVENT TWIN 55 5 5 45 4 4 35 3 3 25 1 2 Twin 35 Twin x 2-35 TD x 3-35 Twin 5 Twin x 2-5 TD x 3-5 2 1 2 15 1 5 1 2 3 4 5 3 4 5 Twin 8 Twin x 2-8 TD x 3-8 Twin 1 Twin x 2-1 TD x 3-1 Twin 13 Twin x 2-13 TD x 3-13 2 5 1 2,1,2,3,4,5,7 m 3 /h Q m 3 /s Pa Pa 8 PeP mmce mm.c.d.a 8 MIXVENT TWIN x 2 PeP Pa Pa mmwg mmce 1 1 9 9 MIXVENT TD x 3 7 7 8 8 6 6 7 7 5 5 6 6 4 4 5 5 3 2 1 3 2 1 1 2 3 4 5 4 3 2 1 4 3 2 1 1 2 3 4 5 2 5 1 2,1,2,3,4,5,7 m 3 /h Q m 3 /s 1 2 3 5 1,5,1,2,3 m 3 /h Q m 3 /s 17

MIXVENT-TD System Accessories Filtration Box MFL The MFL range of in-line heavy duty cabinet filters of type EU3 grade filtration are designed for direct connection with standard circular ducting. p(pa) 15 1 Filter pressure loss (Pa) Ø D B E F Filter type A B Ø D E F MFL-1 2 2 1 16 25 MFL-125 2 2 125 16 25 MFL-16 22 29 16 16 25 5 MFL-2 29 29 2 16 25 1 2 3 4 5 6 7m/s A MFL-25 32 34 25 25 38 Air speed MFL-315 38 42 315 27 41 MBE, Electrical Heater Batteries The MBE electric heater battery sections are designed to be installed on the discharge side of the MIXVENT-TD fans. The units incorporate insulated (black heat) element rods (23V 3W/cm 2 ) with an automatic integrated overheat thermostat (set at 9º C). This thermostat in turn is wired in series with an additional safety overheat manual reset thermostat (set at 12º C). In the case of the unit overheating the second thermostat will switch the unit off, after which the heater can then be Reset manually via the push button switch. All wiring terminations and connections are located on the side of the heater casing. The heaters are available for single phase (models MBE 1, 125 and 16) or three phase (models 2, 25 and 315) electrical supply connection in conjuntion with appropriate circuit protection. All units are supplied with an IP43 rated wiring enclosure. The minimum air velocity through the heater batteries must be >= 1.5 m/s. A range of controllers accessories to accompany the electric heater range are available. These controllers accessories modulate the heater output as a function of the required environmental temperature (see Electrical Accessories section of this catalogue). HEATER BATTERY SELECTION EXAMPLE DATA: Required air volume : 7m 3 /hr (Q) Temp. of air entering: +5º C Temp. required at discharge: +27º C Type Electric Heater Supply Min. Wiring Controller MIXVENT-TD heater power voltage air diagram* type type output volume (W) (V) (m 3 /h) 25/1 MBE-1/4B 4 1/23 5 E1 REG 6 35/125 MBE-125/12B 12 1/23 7 E1 REG 6 5/16 MBE-16/21B 21 1/23 11 E1 REG 6 8/2 MBE-2/5T 5 2/4 17 E2 REG 6 1-13/25 MBE-25/6T 6 2/4 27 E2 REG 6 2/315 MBE-315/9T 9 3/4 42 E3 REG 16 HEATER BATTERY POWER REQUIRED: T (ºC) 5 Temperature difference T between air entry and discharge (ºC) P = Q x.36 x DT P = 7 x.36 x (27-5) P = 5544 W 4 3 5 W 6 W 9 W SELECTION OF HEATER: MBE-2/5T or MBE-25/6T The final selection depends upon: Available space Total system pressure loss Sound level. 15 p(pa) 1 5 2 1 4 W 12 W 1 2 3 4 5 1 2 25 m 3 /h Air speed Electric heater pressure loss p(pa) MBE - 315/9 MBE - 2/5 y 25/6 MBE - 125/12 y 16/21 1 2 3 4 5 6 7 8 9 m/s Air Volume 171 21 W MBE - 1/4 Dimensions (mm) 5 285 4 15

Installation accessories Grilles MRJ Mounted at the inlet or outlet of the fan, the MRJ grille prevents the entry of any foriegn objects. Rectangular Duct Adapters MAR The MAR adapter enables the MIXVENT TD, TDx2 or TDx3 to be connected to rectangular ducting. Back-Draft Shutters MCA Mounted at the outlet of the MIXVENT TD and TDx2 fans, the shutter prevents the air re-circulating when the fans are not in use. Type TD, TD x 2, TD x 3 MRJ - 25 16/1N - 25/1 MRJ - 35 35/125 MRJ - 5/15 5/15 MRJ - 5/16 5/16 MRJ - 8 8/2-8/2N MRJ - 1 1/25-13/25 MRJ - 2 2/315 TD Nominal dim. TD x 2 of ducting Type TD x 3 L x H in mm MAR - 25 16/1N - 25/1 224 x 14 MAR - 35 35/125 224 x 14 MAR - 5/15 5/15 28 x 18 MAR - 5/16 5/16 28 x 18 MAR - 8 8/2-8/2N 315 x 2 MAR - 1 1-13/255 4 x 25 MAR - 2 2/3155 5 X 315 Type TD, TD x 2, TD x 3 MCA - 25 16/1N - 25/1 MCA - 35 35/125 MCA - 5/15 5/15 MCA - 5/16 5/16 MCA - 8 8/2-8/2N MCA - 1 1/25-13/25 MCA - 2 2/315 Accessories REGUL 2 2 Speed switches REB Single-phase electronic speed controller RMB Single-phase auto-transformer speed controller. GSA Flexible aluminium ducting GSI Flexible Acoustic ducting CX Ducting Fixing clamps STC In-duct temperature sensor STA Ambient air temperature sensor BOC Circular air valves PER Exterior plastic louvre shutters MRT RED Joining pieces and reducers Dimensions (mm). TD Series TD-16/1N Ø 4,5 28 28 47,5 232 34 51,5 95,5 151 82 Ø 97 Ø 137,5 95 TD-25 to TD-2 Model Type X A Ø B C Ø D E F G H TD-16/1N 151 232 137,5 96 98 82 95 47,5 131 TD- 25/1 188 33 176 115 97 1 9 8 6 TD- 35/125 188 258 176 115 123 1 9 8 6 TD- 5/15 212 295 2 127 147 112 13 8 6 TD- 5/16 212 275 2 127 157 112 13 8 6 TD- 8/2N 232,5 32 217 141 198 124 14 1 94 TD- 8/2 232,5 32 217 141 198 124 14 1 94 TD-1/25 291 386 272 192 248 155 168 145 14 TD-13/25 291 386 272 192 248 155 168 145 14 TD-2/315 356 45 336 224 312 188 21 182 178 172

Dimensions (mm). TDx2, TDx3 & Twin Series TDx2 X E Ø Ø Model Type X A B C D E F G H TDx2-35/125 188, 417 176 115 123 1 9 253 6 C F TDx2-5/15 212,5 464 2 127 147 111,5 13 249 6 TDx2-5/16 212,5 444 2 127 147 111,5 13 249 6 D B ø 5,5 TDx2-8/2 232,5 5 217 141 198 124 14 298 94 TDx2-1/25 291, 654 272 192 248 155 168 416 145 TDx2-13/25 291, 654 272 192 248 155 168 416 145 H G A Twin and Twin x 2 Back-draft shutter MCA B D C F A M E B N O L D O2 L2 D C A Model type A B C D E F L L 2 M N O O 2 Twin-25 32 18 184 36 16 3 35 375 113 8 Twin-35 32 18 184 33,5 16 3 35 475 333 91 8 253 Twin-5 (15) 395 22 26 37 2 375 31 481 417 11 8 249 Twin-5 (16) 395 22 26 37 2 375 29 461 417 1 8 249 Twin-8 44 24 225 37 22 42 317 59 456 13 1 298 Twin-1 54 29 282 44 27 52 41 679 566 123 145 416 Twin-13 54 29 282 44 27 52 41 679 566 123 145 416 Twin-2 69 355 347 53 335 65 451 699 136 182 Model Type A Ø B C Ø D 25 17,5 111,5 31,5 994,5 35 17,5 136,5 31,5 119,5 5/15 121,5 163,5 35,5 147,5 5/16 121,5 173,5 35,5 157,5 8 131,5 214,5 35,5 197,5 1/13 164,5 264,5 42,5 248,5 2 25,5 33,5 5,5 312,5 TD x 3 Model Type A G 1 G 2 L TD x 3-35/125 755 8 253 213 TD x 3-5/15 766 8 249 223 TD x 3-5/16 726 8 249 23 G2 A L G1 TD x 3-8/2 81 1 298 27 TD x 3-1/25 155 145 416 246 TD x 3-13/25 155 145 416 246 Rectangular adapter MAR F A E B ø G C Type A B C E F Ø G 25/1 264 18 33,3 16 244 9 35/125 264 18 33,5 16 244 9 5/15 32 22 37,5 2 3 9 5/16 32 22 37,5 2 3 9 8/2 355 24 37,5 22 335 9 1/25-13/25 44 29 42,5 27 42 9 2/315 54 355 52,5 355 52 9 173

Acoustic characteristics Sound Power Level Spectrum (db(a) at octave average frequencies (Hz), measured at the fan discharge. Fan Type 125 25 5 1 2 4 8 TD-16/1 37 41 55 57 49 41 32 TD-25/1 37 48 57 59 55 49 4 TD-35/125 37 49 58 6 56 5 41 TD-5/15 39 55 62 63 65 58 46 TD-5/16 39 55 62 63 65 58 46 TD-8/2-N 43 62 59 62 63 58 47 TD-8/2 44 55 7 66 68 63 54 TD-1/25 43 57 67 73 73 67 55 TD-13/25 43 57 67 73 73 67 55 TD-2/315 46 6 7 75 75 69 58 Sound Power Level Spectrum (db(a) at octave average frequencies (Hz), measured outside the fan casing (radiated noise). Fan Type 125 25 5 1 2 4 8 TD-16/1 3 3 35 31 28 22 2 TD-25/1 3 4 46 45 35 28 21 TD-35/125 3 41 47 46 36 29 22 TD-5/15 33 5 51 59 54 42 36 TD-5/16 33 5 51 59 54 42 36 TD-8/2-N 36 57 48 58 52 41 37 TD-8/2 37 5 59 62 57 47 44 TD-1/25 36 52 56 69 62 51 45 TD-13/25 36 52 56 69 62 51 45 TD-2/315 39 55 59 72 65 54 48 Sound Power Level Spectrum (db(a) at octave average frequencies (Hz), measured at the fan discharge. Fan Type 125 25 5 1 2 4 8 Twin x 2-35 42 59 68 68 65 59 49 Twin x 2-5 48 66 74 69 75 65 54 Twin x 2-8 N 53 74 7 71 74 67 56 Twin x 2-8 55 7 81 78 79 74 63 Twin x 2-1 55 71 78 84 84 77 65 Twin x 2-13 55 71 78 84 84 77 65 Sound Power Level Spectrum (db(a) at octave average frequencies (Hz), measured outside the fan casing (radiated noise). Fan Type 125 25 5 1 2 4 8 Twin x 2-35 35 51 57 54 45 38 3 Twin x 2-5 41 61 63 65 64 49 44 Twin x 2-8 N 46 65 59 67 64 5 46 Twin x 2-8 48 65 7 74 68 58 53 Twin x 2-1 48 66 66 8 73 61 53 Sound Power Level Spectrum (db(a) at octave average frequencies (Hz), measured at the fan discharge. Fan Type 125 25 5 1 2 4 8 Twin x 3-35/125 45 57 66 63 6 56 45 Twin x 3-5/15 52 66 7 66 74 63 52 Twin x 3-5/16 52 66 7 66 74 63 52 Twin x 3-8/2 N 57 72 67 67 72 65 53 Twin x 3-8/2 59 66 71 73 76 71 6 Twin x 3-1/25 58 67 69 79 81 75 61 Twin x 3-13/25 58 67 69 79 81 75 61 Twin x 2-13 48 66 66 8 73 61 55 Sound Power Level Spectrum (db(a) at octave average frequencies (Hz), measured outside the fan casing (radiated noise). Fan Type 125 25 5 1 2 4 8 Twin x 3-35/125 35 51 57 54 45 38 3 Twin x 3-5/15 41 61 63 65 64 49 44 Twin x 3-5/16 41 61 63 65 64 49 44 Twin x 3-8/2 N 47 68 64 66 61 51 45 Twin x 3-8/2 48 65 7 74 68 58 53 Twin x 3-1/25 48 66 66 8 73 61 55 Twin x 3-13/25 48 66 66 8 73 61 55 174

MIXVENT-TD FAN KITS TD-16/1N TD-25/1 TD-25/1T Description The TD extractor fan ventilation kits enable the simple and fast installation of a complete ventilation system. The kits include the powerful TD in-line fan providing efficient extraction for bathrooms, toilets, washrooms and any other applications that require the removal of bad odours, stuffy and humid air. In addition to the fan the kits include an interior circular air valve (BOC-1); exterior mounted grille (GR-1); three meters of flexible aluminium ducting (GSA-1) and a roll of tough ducting tape to provide the complete hardware required for a given ventilation system. NEW Extractor fans TD-16/1N TD-25/1 TD-25/1T The TD range of in-line fans incorporate powerful mixed flow impellers which enable efficient and very quiet extraction against the pressures caused by ducting and grilles. Model TD-25/1T incorporates a Run-On- Timer facility which can be adjustable between 1 to 3 minutes. (factory set to 15 mins) TD-16/1N TD-25/1 TD-25/1T The TD range has been specifically designed with an integrated mounting support which enables the fast installation and access to the motor / impeller assembly without having to remove or disturb the adjoining ducting. Technical characteristics Model Type Nom. Power abs. Maximum Duty Maximum Sound Weight speed at free current at free operating pressure discharge discharge temperature level (r.p.m.) (W) (A) (m 3 /h) (ºC) (db(a)) (kg) TD-16/1N 25 35,25 16 4 18 1,4 TD-25/1 TD-25/1T 18 89,26 25 4 24 2, Installation TD-16/1N TD-25/1 TD-25/1T GR-1 BOR-1 Accessories included in Kit GSA-1 Flexible aluminium tubing with adhesive duct tape GR-1 Exterior mounted grille BOC-1 Interior circular air valve. 175