Installation Manual
Contents
1. Pump head Flange withangle position 0 l 605 00 pre assambled at factorv Butterfly valve l 603 00 Guide ring l 601 00 Waterintake l 600 00 Procedure to install the water intake combination A Be sure to apply the IP protective cover in gasoline areas Make sure there is enough space available to place this cover See page 32 Select optimum position for water intake 600 00 Make sure at least the pump head is below the waterline If this is not possible at the selected place of choice do not continue Outside of the vessel Before any holes are drilled make sure there is sufficient space inside the vessel to fit in all components Make sure the handle of the butterfly valve can be fully opened and closed The drill pattern of the water intake part is responsible for the final position and angle of the vertical mounted motor It s advisable to pre assemble all parts and fit the complete set in on the inside of the vessel Drilling pilot holes for the water intake flange in this particular case will ensure the motor is placed vertical after the water intake is correctly placed according to the pilot holes and the drill pattern of the water intake flange Holland Marine Parts 29 Drill a 102mm 4inch hole in the vessel plating Drill 8x 12 5mm 1 2inch holes 600 00 Use the provided Drill pattern to correctly drill the required holes l 604 00 Apply Sikaflex 291i of 3M 5200 polymer seal2. 2x 2 5mm 14 AWG Joystick 3x 2 5mm 14 Al 46 Holland Marine Parts Connect battery to Contactor support on pump unit free contact at contactor Connect battery to G 12V thermal protection from E motor EY contact on E motor d Fuse 2x 300A le Contactor ynamo ynamo Batteryl ti i Batteryl Bo Ga mm Battery2 Seria SW Battery2 Holland Marine Parts 47 Appendix C exploded View JT 90 Single Pumpunit JT 90 3 Way valve Water inlet Ring 3 Nut 3 Seal Rubber Elbow 90 3 BSP Reducer 3 BSP 2 5 BSP Ball valve 2 5 BSP Hose connector 3 76 mm 48 Holland Marine Parts JTS 90 00 V 200 00 l 302 00 l 303 00 l 304 00 l 306 00 l 307 00 l 308 00 l 309 00 310 00 po 2X l 2x 31 Hose clamp 77 94 mm Hose 3 76 mm L 1m 3 3ft Pressure hose 3 76mm Elbow 45 2 BSP M F Hose connector 3 76 mm 2 BSP Ball valve 2 BSP Nozzles 331 311 00 l 312 00 l 213 00 l 316 00 l 215 00 l 317 00 318 00 l 213 Holland Marine Parts 49 Appendix C 1 Electrical Installation 24V Series Parallel Switch JT 90 Single For correct installation of series parallel switch see page 68 3x 2 5mm 14 AWG 2x 2 5mm 14 AWG 50 Holland Marine Parts Contactor support on pump unit D c ai JA Connect battery to Contactor free contact at contactor Connect battery
3. LxWxH 240x160x189 mm LxWxH 9 44x6 29x7 44 inch 90 Kgf 24V 14kW 770A 850A 2x165Ah 1m gt 70mm 3ft gt 2 0 AWG 4 min 2 x 90 mm 3 Nozzle 46mm 1 81 3 76 mm 49 kg 130 LB LxWxH 675x381x365 mm LxWxH 26 57x15x14 37 inch LxWxH 280x235x230 mm LxWxH 11x9 25x9 inch Holland Marine Parts 7 Technical Specifications JT 30 e Sizes stipulated in milimeters Different pump head positions possible 8 Holland Marine Parts Technical Specifications JT 50 e Sizes stipulated in milimeters 105mm 4 13 100mm 4 Straight pump outlet 90 pump outlet Different pump head postions possible Holland Marine Parts 9 Technical Specifications JT 70 2 5 BsP 3 2 5 BSP 3 71mm 2 8 135mm 5 31 100mm 3 94 220mm 6 88 Straight pump outlet 90 pump outlet 603mm 23 7in ES LA Ba E c N E CE ca c 00 m e i ei a T c ri C 5 AR E m Sieg E e m 6 ES al ME E c ES c c EX Ya e Si a O m m m a li Y r crum m I 142mm 5 59in 115mm14 53in 188mm 7 4in eg 100mm 3 94in e E 11mm 0 43in Different pump head positions possible 10 Holland Marine Parts 2 5 BSP 3 2 5 BSP 3 Technical Specifications JT 90 71mm 2 8
4. ing to this picture Connect the butterfly valve with the parts that lay beneath it by fastening the 4 nuts DO NOT OVERTIGHTEN THE NUTS THIS WILL DAMANGE THE VALVE Only when the 4 flanges are correctly installed in the receses of the valve the pump unit can be removed when the boat is in the water Apply Sikaflex 291i or 3M 5200 marine sealant on the rubber gasket on the butterfly flange that contacts the PVC guide ring l 601 00 Remove spilled sealant to prevent inner parts of the valve from jamming Do not apply sealant on the top rubber gasket of the valve Place the pump unit with the pre assembled angled flange on top of the butterfly valve Thoroughly fasten all 8 nuts to create a watertight connection of all parts Angled flange to assure vertical position of pump unit on a sloped hull See page 29 for available flanges Note pre assambled at factory Continue with the installation procedure as stipulated at page 14 Holland Marine Parts 31 IP protective cover for gasoline engine areas All electrical DC Jet Thruster motors are thermally protected from overheating If there is no sufficient cooling provided by means of fresh air this thermal protection will limit operating time of the system Provide sufficient cooling at any time In case the pump unit is installed in a gasoline engine area the special designed IP Cover has to be applied on the motor of the pumpunit to avoid possible explosion that may occ
5. In contrast to the 3 way valves of the Single edition of the Jet Thruster the 3 way valves of the Dual are turned to a closed position whenever the system is not active When the system is activated water flows under pressure to the selected and opened 3 way valve The advantage of the Jet Thruster Dual is that both 3 way valves can be operated simultaneously and in different positions This offers you the capability of operating the bow and stern independently of each other with one system See appendix D E and F for a schematic view of installation Keep the following points in mind during the mechanical installation A Position of pump unit and water inlet combination B Position of 3 wav valves see page 17 C Position of nozzles see page 18 21 Holland Marine Parts 25 A Position of pump unit and water inlet combination Choose a central position for the pump unit for example in the midship where you need to take the water inlet combination into account Very important Pump head must be installed under the waterline From the pump outlet you connect a pressure hose to the 3 way valve in the stern To make the most efficient use of the system it is best to use the shortest possible hose lengths If you need to make bends these should be as fluid as possible Prevent sharp bends Every bend increases resistance and reduces efficiency 2 way 90 Hose connector mounted on pump unit Two positions possible e
6. activate the system and do not operate the Jet Thruster when there are people animals or vulnerable items in the vicinity of your vessel and the inlet and orifices e Close all the valves when you are not aboard Inquire about the local regulations in ports with regard to closing the valves Operation You operate the Jet Thruster by activating the system on the front plate of the control panel by pressing the button A This switch is illuminated in blue when the system is active Operate the Jet Thruster by moving the joystick s B left or right moving the bow or stern to port or starboard respectively When equipped with push buttons the same procedure applies the push buttons being illuminated in green or red light Duration of activation Prevent the use of many short pulses Instead move your vessel by means of pulses that last a few seconds The efficiency of the system is determined in part by the battery capacity present The overheating protection will activate when the system is active for an extended period of time After the engine has cooled sufficiently this protection is removed The cooling time is determined in part by the ambient temperature Jet Thruster Combi The control panel is equipped with two joysticks or push buttons You can move sideways by operating both push buttons for bow and stern at the same time You can manoeuvre the vessel around the centre of rotation by manoeuvring the bow to port and the st
7. can be used in combination with the polymer kit in case of completely flat plating Mortising is preferable See Exploded views in this manual for correct installation order of all components A Danger Protect pump unit and 3 way valve s from petrol fumes Provide sufficient ventilation Ignition proof covers are available for JT 30 JT 50 Vertical Standard configuration 90 degree elbow 3 BSP SS 316 provided in installation kit Option in case of steep hull or problems with alignment Available as option Female Female 3 BSP 45 elbow l 354 00 Male Female 3 BSP 45 elbow l 364 00 Can be ordered additionally Holland Marine Parts 15 To avoid resonance e Do not bring pump unit into contact with the interior e The engine must be attached to the vessel by means of the engine bracket To do this use the three recesses in the engine bracket m8 5 16 Lateral placement For lateral placement attach a hose socket with square mounting plate rubber seal to the pump head Longitudinal placement For longitudinal placement attach the elbow 90 hose socket with square mounting plate rubber seal to the pump head 2 51mm 3 76 mm 16 Holland Marine Parts B Position of 3 way valve CAUTION Prevent physical injury When electrically turning the plunger present in the valve body considerable force occurs Prevent any body parts from getting trapped during installation Please no
8. g Stern Four directional positions possible on pump unit Water intake Pump outlet 90 degrees in combination with 3 way hose connector Four directional positions possible on pump unit Water intake e g Bow e g Stern The flexible hoses should be attached adequately to prevent vibrations and chafing You should prevent the hose coming e into contact with sharp parts or other elements present that could damage or pierce the hose The Jet Thruster should preferably be provided with its own battery To make the most efficient use of the system you should place the battery as close to the pump unit as possible and keep the battery cables as short as possible During simultaneous operation of the bow and stern the thrust generated by the pump unit is divided over the bow and stern Partly due to this you can manoeuvre the ship laterally or around the ship s pivot point However the thrust per opened outlet is reduced during the simultaneous operation of the two 3 way valves present Familiarise yourself with the reaction speed of the system B Position of 3 way valve See page 17 C Position of nozzles See page 18 21 26 Holland Marine Parts Electrical installation Jet Thruster Combi See appendix D 1 D 2 D 3 E 1 and F 1 for a schematic representation of the electrical connection The electrical connection of the Jet Thruster Dual includes two different phases Step 1 Power supply for the e
9. movement along e g sharp edges Protect the high pressure hoses from heat penetration sunlight chemicals Avoid physical contact with the water inlet when the system is active Avoid physical contact swimmers with the nozzles and the water expelled by an active system Danger Protect pump unit and 3 way valve from petrol fumes Provide sufficient ventilation Ignition proof covers are available 6 Holland Marine Parts Jet Thruster pump units JT 30 66 thrust LBS Force 30 Kgf Voltage DC 12V E motor capacity kW 3kW Current 376A M aster fuse 425A Recommended battery capacity 12V 1x 105Ah Battery cable 1m gt 50mm 3ft gt 1 0 AWG Max operating time 4 min Water inlet 1x 90 mm 3 Water outlet Nozzle 32mm 1 26 Pressure hose diameter 2 51 mm Weight pump 29kg 64LB Pump unit LxWxH 442x425x330 340 mm Ixwxh 17 4x16 73x13 13 38 inch 3 Way valve LxWxH 240x160x189 mm LxWxH 9 44x6 29x7 44 inch JT 50 110thrust LBS 12V Force 50 Kgf Voltage DC 12V E motor capacity kW 6kW Current 730A M aster fuse 850A Recommended battery capacity 12V 1x165Ah Battery cable 1m gt 70mm 3ft gt 2 0 AWG Max operating time 4 min Water inlet 1x 90 mm 37 Water outlet Nozzle 32mm 1 26 Pressure hose diameter 2 51 mm Weight pump 36 kg 80 LB Pump unit LxWxH 495 5x425x330 360 mm LxWxH 19 x16 73x13 14 17 inch 3 Way valve LxWxH 240x160x189 mm LxWxH 9 4
10. rapport information about installation 69 Notes 70 Project info 71 Holland Marine Parts 3 Preface Holland M arine Parts keeps you moving Thank you very much for your purchase of the Jet Thruster This electric system greatly simplifies the manoeuvring of your vessel The extensive development process of the Jet Thruster guarantees a complete and innovative system that will make operating your boat a breeze The Jet Thruster systems by Holland Marine Parts are made of quality materials For the correct and safe operation of the Jet Thruster you have purchased we recommend having it professionally installed A professional installation taking into account the recommendations in this installation user manual guarantees a well working system This installation manual has been prepared with the utmost care If you experience installation trouble please contact your Jet Thruster dealer We point out that some vessels require adjustments to assure their integrity For all your questions about this please contact your shipbuilder Holland M arine Parts 4 Holland Marine Parts Warranty provisions On all its newly manufactured products Holland Marine Parts provides quality assurance regarding their proper operation both with regard to the material and the work done including latent defects for a period of 24 months after the invoice date to the first receiver In case of defects in material and or defects caused by inadequate wo
11. to H cable from E motor Battery 1 Battery 2 Fuse 425A 2x 12V thermal protection from E motor EJ amp F V series parallel ynamo ynamo Batteryl t G Battery1 Battery2 Battery2 Series parallel switch Fuse 15A 1 Lo gnition A 12V Ground Jovstick Holland Marine Parts 51 Appendix D exploded View JT 30 JT 50 Combi 31 3 A 52 Holland Marine Parts Pumpunit JT 30 JT 50 2 Way pump outlet 3 Way valve Water inlet 3 Ring 3 Nut 3 Seal Rubber Elbow 90 3 BSP Reducer 3 BSP 2 5 BSP Ball valve 2 5 BSP Hose connector 3 76 mm 29 1 JTS 30 00 JTS 50 00 P 155 00 V 201 00 l 302 00 l 303 00 l 304 00 l 306 00 l 307 00 l 308 00 l 309 00 310 00 Hose clamp 77 94 mm Hose 37 76 mm L 1m 3 3ft Pressure hose 2 51 mm Hose clamp 48 60 mm Elbow 45 2 BSP M F Hose connector 2 51 mm Ball valve 2 BSP Nozzles steel 311 00 l 312 00 l 113 00 114 00 l 316 00 l 115 00 l 317 00 318 00 Holland Marine Parts 53 Appendix D 1 Electrical installation 12V JT 30 Combi use 2x5 A f TA l ji OUUU La Al A Url v Al niani H a LL pe AN 12v o o 54 Holland Marine Parts 1x2 5 mm 14 AWG AN 12V be O Connect battery to free contact at contactor Connect battery to EY cable from E mo
12. 135mm 5 31 100mm 3 94 220mm 6 88 Straight pump outlet 90 pump outlet 196 77 L 30 5 144 5 7 100 394 370 146 1569 392 15 4 uu Different pump head positions possible Holland Marine Parts 11 Technical Specifications 3 way valve JT 30 JT 50 Holland Marine Parts 189mm 7 44 160mm 6 29 114mm 4 49 10mm 0 4 BLS 140mm 5 51 12 Holland Marine Parts Technical Specifications 3 way valve JT 70 JT 90 2 5mm 10 83 i S Qo 22 mm 8 94 7 24 226mm 8 9 184mm QV C a E 3 E E pu E 144mm 5 67 166mm 6 54 Holland Marine Parts 13 Installing the Jet Thruster Single All orifices are located below the water line Extra attention needs to be given to securing and installing the included hose clamps around the high pressure hoses The included hose clamps are robust and of high quality A Holland Marine Parts recommends using the included hose clamps The installation of different hose clamps than the ones included with the system is at your own risk Mechanical Installation See page 36 51 for a schematic view Keep the following points in mind during the mechanical installation A position of pump unit and water inlet combination see page 15 B position of 3 wav valve see page 17 C p
13. 331 00 Ring 3 l 303 00 Hose 3 76 mm L 1m 3 3 ft l 312 00 Nut 3 l 304 00 Pressure hose 2 51 mm l 113 00 Seal Rubber 306 00 Hose clamp 48 60 mm l 114 00 Elbow 90 3 BSP l 307 00 Elbow 45 2 BSP M F 316 00 Reducer 3 BSP 2 5 BSP l 308 00 Hose connector 2 51 mm l 115 00 Ball valve 2 5 BSP l 309 00 Ball valve 2 BSP l 317 00 Hose connector 3 76 mm 310 00 Nozzles 318 00 l 113 00 V 100 00 I 114 00 6x 318 00 2x 113 00 l 115 00 2x 316 00 2x I 317 00 2x Holland Marine Parts 37 Appendix A 1 Electrical installation 12V JT 30 Single 3x 2 5mm 14 AWG 2x 2 5mm 14 AWG 38 Holland Marine Parts Contactor support on pump unit Connect battery to free contact at contactor Connect battery to 3 cable from E motor Battery Contactor 12V thermal protection from E motor Fuse 1x 425A Sal Fuse 15A NY L lgnition lt A 12V Ground ovstick Holland Marine Parts 39 Appendix A 2 Electrical installation 12V JT 50 Single 2 5mm 14 AWG 40 Holland Marine Parts 2 5mm 14 AWG Contactor support on pump unit 12V thermal protection from E motor Connect battery to free contact at contactor Connect battery to EY cable from E motor Battery Contactor Fuse 2x5 A Fuse 15A lgnition A 12V Oo Ground ERE EN Joystick Holland
14. 4 o GG pos 18 on relay 4 x 2 5 mm 14 AWG Contactor VALVE A 4 Holland Marine Parts 63 Appendix F exploded View JT 90 Combi pp Option 1 Option 2a Option 2b u 1 m N1 213 2x 213 2x 215 2x 331 Pumpunit JT 90 JTC 90 00 2 Way pump outlet P 259 02 3 Wav valve V 202 00 Water inlet 3 l 302 00 Hose clamp 77 94 mm l 331 00 Ring 3 l 303 00 Hose 3 76 mm L 1m 3 3ft l 312 00 Nut 3 l 304 00 Pressure hose 3 76 mm l 213 00 Seal Rubber 1 306 00 Elbow 45 2 BSP M F l 316 00 Elbow 90 3 BSP l 307 00 Hose connector 3 76 mm 2 BSP l 215 00 Reducer 3 BSP 2 5 BSP l 308 00 Ball valve 2 BSP l 317 00 Ball valve 2 5 BSP l 309 00 Nozzles steel l 318 00 Hose connector 3 76 mm 310 00 64 Holland Marine Parts Holland Marine Parts 65 Appendix F 1 Electrical Installation 24V Series Parallel Switch JT 90 Combi For correct installation of series parallel switch see page 68 e ET namo namo y y Battery1 Cu er Battervi Battery2 Battery2 66 Holland Marine Parts Connect battery to free contact at contactor Connect battery to EY cable from E motor gt L 3 E RE Fuse 15A 9 E Contactor O A 12V pos 18 on relay 1 x 2 5 mm 14 AWG F E hd O n BAL 3 _ _ mmm G 12V thermal protection from E motor Holland Marine
15. 4x6 29x7 44 inch JT 70 154 thrust LBS Force 70 Kgf Voltage DC 24V E motor capacity kW 10kW Current 550A Master fuse 600A Recommended battery capacity 12V 2 x 120Ah Battery cable 1m gt 70mm 3ft gt 2 0 AWG Max operating time 4 min Water inlet Water outlet 1x 90 mm 3 Nozzle 46mm 1 81 Pressure hose diameter 3 76 mm Weight pump 43 kg 95 LB Pump unit LxWxH 540x405x355 mm LxWxH 21 25x15 95x14 inch 3 Way valve LxWxH 280x235x230 mm LxWxH 11x9 25x9 inch Nominal diameter 2 BSP 2 5 BSP 3 BSP Major diameter Note Thread sizes of all Jet Thruster com ponents in Whitworth Pipe Thread DIN ISO AN 228 BSP DIN 259 British Standard Pipe Force Voltage DC E motor capacity kW Current M aster fuse Recommended battery capacity 12V Battery cable Max operating time Water inlet Water outlet Pressure hose diameter Weight pump Pump unit 3 Way valve JT 90 Force Voltage DC E motor capacity kW Current M aster fuse Recommended battery capacity 12V Battery cable Max operating time Water inlet Water outlet Pressure hose diameter Weight pump Pump unit 3 Way valve JT 50 110thrust LBS 24V 198 thrust LBS 50 Kgf 24V 6kW 380A 425A 2x 105Ah 1m gt 50mm 3ft gt 1 0 AWG 4 min 1x 90 mm 3 Nozzle 32mm 1 26 2 51 mm 34 kg 75 LB LxWxH 495 5x425x330 360 mm LxWxH 19 x16 73x13 14 17 inch
16. AGM batteries JT 30 12V 105Ah 1x JT 70 24V 120Ah 2x JT 50 12V 165Ah 1x JT 90 24V 165Ah 2x JT 50 24V 105Ah 2x Use batteries with a high CCA rating Note Cable ratings are for 1 meter 3 3ft of cable Longer runs require larger cable Remember that to and from the battery is the total length of the run and must be size accordingly For optimum performance keep battery cables as short as possible Charging the batteries In order to keep the ship s circuit separate from the Jet Thruster battery batteries it is recommended to divide the charging current with a diode bridge or MosFet battery separator from the alternator Please note More electricity will be required as a result of the installation of the Jet Thruster That is why in some cases it is recommended for the alternator to be converted to high yield or to place a separate alternator 22 Holland Marine Parts Electrical diagram for connecting Single and Dual joystick control See appendix A 1 A 2 A 3 B 1 C 1 D 1 D 2 E 1and F 1 Step 1 Forthe installation of the joystick front plate drill a hole 70 mm 2 3 4 in diameter 2x for combi joystick overlapping Step 2 Connect the t cable red of the joystick with fuse 15A to the 12V ignition switch or a control panel and connect the ground wire green yellow to the ground of the ship s circuit A The joystick operates on 12V for vessels with a 24V installation a dc dc converter must be applied Ste
17. Installation Manual amp User Guide Jet Thruster Single HOLLAND Jet Thruster Combi MARINE PARTS Table of Contents Preface 4 Warranty Provisions 5 Safetv 6 Jet Thruster pump units 7 8 Technical Specifications Installing the Jet Thruster Single 14 Electrical Installation Jet Thruster Single 22 Installing the Jet Thruster Combi 25 Electrical Installation Jet Thruster Combi 27 Installing the Jet Thruster vertical 28 IP protective cover for gasoline engine areas 31 Operating instructions 33 Troubleshooting 34 Winterising 35 Jet Thrusters Single Appendix A Exploded View JT 30 JT 50 Single 36 A 1 Electrical Installation 12V JT 30 Single 38 A 2 Electrical Installation 12V JT 50 Single 40 A 3 Electrical Installation 24V and Series parallel JT 5O Single 42 B Exploded View JT 70 Single 44 B 1 Electrical Installation 24V and Series parallel JT 70 Single 46 C Exploded View JT 90 Single 48 C 1 Electrical Installation 24V and Series parallel JT 90 Single 50 Jet Thrusters Combi Appendix D Exploded View JT 30 JT 50 Combi 52 D 1 Electrical Installation 12V JT 30 Combi 54 D 2 Electrical Installation 12V JT 50 Combi 56 D 3 Electrical Installation 24V and Series parallel JT 50 Combi 58 E Exploded View JT 70 Combi 60 E 1 Electrical Installation 24V and Series parallel JT 70 Combi 62 F Exploded View JT 90 Combi 64 F 1 Electrical Installation 24V and Series parallel JT 90 Combi 66 Series parallel switch 68 Test
18. Marine Parts 41 Appendix A 3 Electrical Installation 24V Series Parallel Switch JT 50 Single For correct installation of series parallel switch see page 68 Fuse 425A 3x 2 5mm 14 AWG 2 5mm 14 AWG 42 Holland Marine Parts A s c ol Connect battery to free contact at contactor Contactor Connect battery to cable from E motor tad ynamo ynamo Batteryl es E Battery1 Battery2 Battery2 Battery 1 Battery 2 amp series parallel switch Fuse 15A l 12V thermal protection from E motor series parallel switch Holland Marine Parts 43 Appendix B exploded View JT 70 Single Pumpunit JT 70 3 Way valve Water inlet 4 Ring 4 Nut 4 Seal Rubber Elbow 90 3 BSP Ball valve 3 BSP Hose connector 3 76 mm 44 Holland Marine Parts JTS 70 00 V 200 00 l 259 00 l 260 00 261 00 l 262 00 l 307 00 l 264 00 l 365 00 Hose 3 76 mm L 1m 3 3 ft Pressure hose 2 5 Hose clamp 77 94 mm Elbow 45 2 BSP M F Hose connector 3 76 mm 2 BSP Ball valve 2 BSP Nozzles I 31 2x 1 331 l 263 00 l 213 00 l 33 l 00 l 316 00 l 215 00 l 317 00 318 00 Holland Marine Parts 45 Appendix B 1 Electrical Installation 24V Series Parallel Switch JT 70 Single For correct installation of series parallel switch see page 68 AN 12v Fuse 15A Ignition e Ground
19. Parts 67 Series parallel switch The Series Parallel Switch creates a temporary 24V environment out of two 12V batteries to power the E motor from the pump unit The switch itself operates at 12V The moment the Jet Thruster system activates 12V power activates the coil that makes the switch connects the battery cables Automatically the connection will break if the Jet Thruster stops running For correct installation connect the batt cables according to View P Contactor support on pump unit Connect F and G from the Series Parallel Switch with F and G at the pump unit Use a 2x 2 5mm2 cable G 12V thermal protection from E motor Note If the Series Parallel Switch does not engages the Jet Thruster will run at 12V This implicates that less thrust force will occur from the pump unit E F 2x 2 5mm 14 AWG Contactor Batt 1 Alternator t Batt 1 4 Alternator att 2 ynamo 4 ynamo Batteryl Batteryl Battery2 O CH Battery2 68 Holland Marine Parts Jet Thruster valve test rapport 3 way valve serial number V 100 00 V 200 00 V 101 00 q V 202 00 0 Jet Thruster test rapport SS Testdate OK HM P No Name Signature JTS 30 00 1 JTC 30 00 1 JTS 50 00 O JTC 50 00 2 JTS 70 00 8l JTC 70 00 a JTS 90 00 JTC 90 00 IET i i i i JT 30 JT 50 JT 30 JT 50 JT 70 JT 90 JT 70 JT 90 pos 1 pos 2 pos 1 pos 2 Se
20. ant to securely mount the Water intake l 600 00 and flange into the hole make sure to apply enough sealant on each part of the flange The polymer sealant provides if applied correctly a very strong seal If necessary smoothen the surface of vessel plating in order to provide a flat spot on which the flange will attach Make sure the Water Intake is well installed and makes a good contact with the vessel plating Inside the vessel Make sure the vessel plating has a leveled smooth and clean surface where the guide ring l 601 00 is placed over the flange and bolds of the water intake Check strength of the vessel plating If necessary locally reinforce the position of the Water Intake to ensure the strength and integrity of the vessels hull In case of doubt consult a professional boat builder Slide the PVC guide ring on the part of the flange and bolds that are in the boat If necessary thoroughly smoothen the inside of the hull to create a flat surface on to which the PVC flange will be placed Apply Sikaflex 291i or 3M 5200 Marine Sealant on the side that contacts the vessel plating flange and bolds Provides a excellent waterproof connection 30 Holland Marine Parts Install the buttefly valve on top of the pvc ring Make sure to check the opening direction of the lever is not obstructed The valve has to be opened fully for a correctly functioning system Apply the provided SS316 support flanges I 602 00 in a pattern accord
21. ctions are BSP treaded Apply Sealant for maritime purposes e g Sikaflex 291i 3M 5200 adhesive sealant at every tread to connect and seal the parts 9 Thoroughly clean and degrease every tread that has to be connected M ake sure to use sufficient sealant on the tread At least 6 threads and smoothen with e g finger over en tire thread Apply sealant on both parts that have to be installed Remove spilled sealant immediately Use acetone to remove Sikaflex 291i stains 10 Installing the water intake The position of the pump unit that has to be installed under the water line determines the location of the water intake Make sure the position of the water intake and the components like the ball valve elbow hose connector hoses and hose clamp are not in conflict with available space before a hole is made Drill a 90mm 3 hole smoothen edges 11 Repeat installation process like suggested at point 7 12 Thoroughly secure the flange treaded water intake by fasten the provided 3 nut Holland Marine Parts 21 Electrical Installation Jet Thruster Single Schematic diagram in appendix A 1 A 2 A 3 B 1 and C 1 The electrical installation of the Jet Thruster is very simple In appendix A 1 A 2 A 3 B 1 and C 1 you will find the schematic diagram of the wiring to be applied The electric motor of the Jet Thruster generates a lot of power in a short period of time It is recommended you connect a separate batter
22. drill horizontal Nozzles can be positioned shifted horizontal and vertical in case of a narrow bow Hoses can be crossed in order to place the nozzles further to the front of the bow See image at point 8 for visible explanation 3 4 Use a 60mm 2 hole saw to drill the holes for the nozzle Keep drill horizontal and in 90 position to the vessel s heart line see illustration page 19 6 Fit in the nozzle and check if nozzle is placed horizontal and in 90 angle to the heart line of the vessel e g by inserting the nozzle from the inside out to determine if hole is drilled correct 20 Holland Marine Parts 7 Outside of vessel Weldable nozzle Weld in the nozzle and cut of remaining length Smoothen surface Note Do not cut into or cut away the internal restriction within the nozzle Flange treaded nozzle In case of an rough or not entire flat surface Apply sealant for maritime purposes Sikaflex 291i 3M 5200 adhesive sealant on the side of the flange of the nozzle that contacts the vessel plating In case of a smooth and flat surface Apply the provided rubber packing to seal Do not use additional sealant in combination with the rubber gasket Mili A Inside vessel Place the PVC guide ring white nylon ring and the 2 nut apply sealant Tightly fasten the nut Make sure the nozzle remains horizontal and in 90 heart line of the vessel 8 Connect the ball valve 45 elbow and the hose connector All conne
23. e connector Do not remove the layer of foam from the inside of the top IP Cover This foam enables airflow in side the cover After all installation is finished place the top cover the gasket and thoroughly connect the top cover with the base cover by tightening the provides screws 32 Holland Marine Parts User Guide Jet Thruster Holland Marine Parts JT 30 JT 50 JT 70 JT 90 Your vessel is equipped with a Holland Marine Parts electric Jet Thruster For the safe and correct operation of this system Holland Marine Parts recommends every user to carefully study this operating guide Familiarise yourself with the system by trying it out in various weather conditions The windage and draught as well as the weight of your vessel are factors contribut ing to how well the system operates Warnings e The Jet Thruster is not a replacement of the main controls but assists with the execution of difficult manoeuvres e Familiarise yourself with the way your vessel responds to your operation of the system e The electric motor produces heat The thermal protection limits continuous operation to about 4 minutes e The water inlet is located on the bottom of your vessel Inquire about the exact location of the water inlet grating e Prevent the system from sucking in large amounts of sand and dirt Do not activate it when you have less than 30cm 12 of ground clearance e The nozzles of the Jet Thruster are located beneath the water line Do not
24. ern to starboard or the other way around Holland Marine Parts 33 Troubleshooting If the system is not functioning IT E FET idm T2 2 1 22 Sol 32 3 3 3 4 4 1 4 2 4 3 System is not working power indicator off System is not working power indicator off System is not working power indicator on System is not working power indicator on Engine running no activity Engine running no activity Engine running no activity Engine running no activity Engine running no activity System is not efficient enough Too little power JT 50 24V JT 70 and JT 90 Joystick not receiving power Joystick not receiving power Battery dead or main fuse broken Damaged relay Overheating protection activated Valves closed Engine does not draw water Polluted system shallow water Damaged impeller System operates inverted Low battery voltage Series parallel does not activate system runs at 12V Press the switch Check fuse 15A behind joystick Check replace fuse Contact your dealer Leave engine to cool Check whether or not valves are closed Place pump unit inlet below water line Run engine in deep water until clean Contact your dealer Cabling fault Exchange A and B on the pump unit Charge batteries see electrical installation page 22 Check actual voltage at meter Check connections series parallel switch 34 Holland Marine Par
25. ery to EY cable from E motor G 12V thermal protection from E motor VALVE A 4 VALVE B 1x2 5 mm 14 AWG pos 18 on relay Pr FL LIS an J L 4 x 2 5 mm 14 AWG Holland Marine Parts 59 Appendix E exploded View JT 70 Combi 60 Holland Marine Parts Pumpunit JT 70 JTC 70 00 2 Way pump outlet P 259 02 3 Way valve V 202 00 Water inlet 4 259 00 Hose clamp 94 115 mm 265 00 Ring 4 l 260 00 Hose 3 90 mm L 1 3 3ft l 263 00 Nut 4 l 261 00 Pressure hose 3 76 mm l 213 00 Seal Rubber l 262 00 Hose clamp 77 94 mm l 331 00 Elbow 90 3 BSP l 307 00 Elbow 45 2 BSP M F l 316 00 Ball valve 3 BSP l 264 00 Hose connector 3 76 mm 2 BSP l 215 00 Hose connector 3 90 mm l 265 00 Ball valve 2 BSP 317 00 Nozzles steel 318 00 Option 1 ww e Option 2a Ak y i Option 2b Holland Marine Parts 61 Appendix E 1 Electrical Installation 24V Series Parallel Switch JT 70 Combi For correct installation of series parallel switch see page 68 use2 x3 AN Fand G series ara e namo namo y y Battery1 Gt Batter Battery2 te Te Battery2 62 Holland Marine Parts Contactor support on pump unit Connect battery to free contact at contactor Connect battery to EY cable from E motor see 1 x 2 5 mm 14 AWG G 12V thermal protection from E motor ka RK 7 a
26. ion A This installation manual provides advice about the complete installation of the Jet Thruster Remarks about safety are accompanied by this symbol Follow all instructions in this manual All users of the system must be aware of the safety regulations as explained in this manual Preferably leave installation and maintenance of the system to a dealer authorised by Holland Marine Parts Use appropriate tools for the installation and maintenance of the Jet Thruster Provide the Jet Thruster seperate battery s Place the battery s as close to the pump unit of the Jet Thruster as possible Always use a Holland M arine Parts control panel Do not touch any moving parts of an active system Parts such as the E motor may become hot do not touch them and do not cover them under any circumstances Avoid having flammable products near the E motor Do not conduct any inspection or maintenance of the system when it is active Do not close any valves of an active system The system is located beneath the water line Do not remove any parts of the system before all valves have been closed Close all valves when you are not aboard Leave system maintenance to specialists Disconnect the battery cables when conducting maintenance and in the event of long term absence e g when the vessel is not being used in winter The hoses are under pressure in an active system high pressure hoses are to be attached to the vessel to prevent
27. l 324 00 60 mm 2 36 nofinishing needed 25 l 330 00 60 mm 2 36 nofinishing needed 35 l 333 00 60 mm 2 36 nofinishing needed 450 l 336 00 60 mm 2 36 no finishing needed 59 l 339 00 60 mm 2 36 no finishing needed Flange threaded 90 transom l 342 00 60 mm 2 36 no finishing needed nozzle 0 nozzle 25 nozzle 35 nozzle 459 nozzle 559 transom 90 nozzle aluminium nozzle SS316 nozzle steel 18 Holland Marine Parts The Jet Thruster will be most effective when the nozzles are placed AS FAR AS POSSIBLE TO THE BOW shifted position possible as seen in diagram to increase leverage arm Top side of nozzle 10cm 4 below waterline Keep in mind that when the nozzles rise above the waterline it is possible by the powerful Jet of water expelled by the Jet Thruster inconvenience or damage may occur Theoretically After correct installation one can look through the nozzles from port to starboard Use the included 45 degree elbows in order to place the nozzles as far as possible to the front In case of application as a stern Jet or in case of Jet Thruster Combi place the system as far as possible to the stern If 90 Transom nozzles are installed in the stern the system will be most efficient 4 90 flanged treaded transom nozzle e g under swiming platform Flanged treaded outlet or weldeable nozzle Principle for optimum installation e Nozzles at 90 ang
28. le to the centre line of the vessel e Nozzles horizontal e Top side of nozzle no less than 10cm 4 below the waterline deeper is possible but consider to place the nozzles further to the front Shifted position possible in case of narrow bow In case of a blund bow concider an increased nozzle angle Choose the correct nozzle angle 0 25 35 459 559 Nozzle can be rotated to achieve optimum position ja t al D Illustration of shifted and crossed nozzle position Venturi in nozzle do not damage Holland Marine Parts 19 Installing the nozzles and water intake In case of steel or aluminum vessel plating weldable nozzles are available For polyester and wooden vessel plating flange treaded nozzles are available 1 Place vessel horizontal Select optimum position for nozzle As far to the front of bow or 1 stern as possible top side of nozzle 10cm 4 below water line Nozzle horizontal and in 90 angle to the heart line of the vessel Note Not placing the nozzles as far to the front or aft as possible reduces the overall effectiveness of the system Laser equipment can assist selecting optimum position and determine if vessel is placed A perfectly horizontal 2 Make sure the position of both nozzles and the components like the ball valves elbows hose connector hoses and hose clamp are not in conflict with available space before a hole is made Drill a pilot hole Keep
29. lectric motor of the pump unit see page 22 In the case of a 12 Volt vessel s circuit the 24 Volt Jet Thruster systems JT 50 JT 70 and JT 90 should be provided with 2 batteries and a series parallel switch see p 68 See appendix A 3 E 1 and F 1 for the correct connection method of this switch Step 2 Connection and power supply of the control and operation of the Combi system Take note the power supply for the relay unit is 12V The 3 way valves for the Jet Thruster Combi are standard equipped with a relays unit and 10m 31 ft neoprene cable 5 x 1 5mm 16 AWG V 101 00 Do not disconnect remove or change the standard provided cables from the 3 way valve and the relays unit This will void the warranty Step 3 Select position for valve and relays unit Protect the electrical components from water It is preferred to place the 3 way valve relay unit to be accessible for inspection Step 4 Pull the provided neoprene cable 5 x 1 5mm from the position where the valve is located to the actuator support on top of the pump unit If necessary the cable can be extended with similar cable Cable type HO7RNF Please note do not combine different colors in the pairs This can damage the system Step 5 Pull a cable 4 x 2 5mm 14 AWG from the joystick to the actuator support on to connect the joy stick with the AB AB screw connectors on the joystick and on the Actuator support Step 6 Pull a cable 1x 2 5mm 14 AWG fro
30. m the ignition Joystick to the srew connector on the actuator support option instead of step 5 and 6 apply a 5 x 2 5mm 14 AWG cable Holland Marine Parts 27 Connection on the contactor support See appendix D 1 D 2 D 3 E 1 F 1 for detailed information to connect the valves to the actuator support Combine the following wires from both valves and connect to the screw connectors on the actuator support Brown pair to position 18 on relay Green pair to E on screw connector Black pair to minus on screw connector Blue and grey from valve A Blue to 1 A combined with A from Joystick Grey to 1 B combined with B from Joystick Blue and grey from valve B Blue to 2 Y A combined with A from Joystick Grey to 2 B combined with B from Joystick Please note If the thrust force is to the opposite side than selected with the joystick switch A and B pairs to alter the direction Please note Only switch the A and B within this pair 28 Holland Marine Parts Installing the Jet Thruster Vertical The setup of the vertial Jet Thruster pump unit is ideal for engine rooms with less draft and few space available The pumpunit is mounted directly on the water intake The intake itself can be shut and if necessary the pumpunit can be removed for maintanence or other purposes cover optional P 263 00 B io 25 35 G B o 8 2 l 605 00 l 606 00 l 607 00 608 00 l 609 00
31. osition of nozzles see page 18 21 Note The Jet Thruster is most efficient when the connections between system components made with the included high pressure hoses are as short as possible Place the pump unit and the 3 way valve as close to the nozzles as possible to achieve this Hose clamps Installation kit provides 1 hose clamp per bushing Pay attention when installing the provided M llenbach two shell hose clamps Make sure all parts of the clamp slide into place when tightening the nuts M ake sure clamps are well placed and thoroughly fastened To avoid corrosion apply e g Protective spray to the clamp After first operation of the system check that clamps are tight Annually inspect the clamps for their integrity 14 Holland Marine Parts A Position of pump unit and water inlet combination Please note Pump head must be under water line e Place the water inlet in the hull of the vessel Diameter in hull 90mm 3 hole saw e Exterior of hull Flange of inlet piece l 302 00 l 302 00 e Interior of hull sealing rubber l 306 00 PP sliding ring l 303 00 nut 3 l 304 00 Water inlet SS 316 Please note Keep a maximum distance of 1 metre 3 3 ft between the bushing of the pump and bushing 2 on the ball valve side 1 metre 3 3 ft hose is provided for this purpose l 312 00 Please note Exterior of hull Flange provided with polymer sealing kit The included rubber sealing ring l 306 00
32. p 3 JT Single Pull one cable 2x2 5mm 14 AWG from the joystick to the actuator support on the pump unit Connect this cable with the screw connectors on both the actuator support on the joystick and the pump unit marked A and B Jet Thruster Combi 4x2 5mm 14 AWG 85 mm 0 33 Holland Marine Parts 23 Step 4 Install the joystick in the hole with the included bracket and assembly nuts Screw installation nuts on hand tight Step 5 JT Single Pull one cable 3x2 5mm 14 AWG from the pump unit to the 3 way valve and connect it to the screw connectors marked C D and E 3 way valve Jet Thruster Single Step 6 JT 50 24V JT 70 and JT 90 Use the connectors F and G on the pump to connect the series parallel switch and continue with diagram A 2 A 3 B 1 C 1 D 2 D 3 E 1 and F 1 Step 7 Connect the insulated battery cables of the right type and place the main fuse and suitable main switch JT 30 JT 50 24V JT 50 12V JT 70 JT 90 JT 30 JT 50 gt 1x 425A JT 50 gt 2x 500A JT 70 2 2 x 300A JT 90 gt 2x 425A 24 Holland Marine Parts Installing the Jet Thruster Combi The Jet Thruster Combi works with one centrally placed pump unit and two 3 way valves for steering the bow and stern of your vessel What is distinctive about the Combi is that the water pressure from the pump unit is divided in the direction of the bow and stern The manifold that is placed on the pump unit ensures this division
33. rial No Serial No Serial No Serial No Holland Marine Parts 69 70 Holland Marine Parts Project info ENEE ae ee ee EE eee ee ee eee eee ee ee eege hop pri Ee E EE Ee ee ia rana da e a a e oa ado eg BUGOY PC EE CINSGCOGE aserto rca opor EE Pate Or te EE e Arr Date of system activation uud 12 X4 93 air rd arde dO a URP UE eae IUE AT A Holland Marine Parts 71 PRODUCIS US Marine Products 25 Constitution Drive Taunton MA 02780 Phone 508 802 6035 Fax 508 802 6006 www usmarineproducts com sales usmarineproducts com The Jet Thruster systems and components are a brand of and developed by H O LA IN 2 Holland Marine Parts b v EM Ge Donker Duyvisweg 297 MARINE PARTS a 3316 BL Dordrecht A ilf The Netherlands a We eng VW f P O Box 3050 3301 DB Dordrecht C Tel 31 78 6174968 uS Fax 31 78 6185921 Skype Holland M arine Parts HISWA info hollandmarineparts nl www hollandmarineparts com All our products are manufactured according to CE regulations We keep the right to change descriptions graphs or other statements which are required for technical development of our Jet Thruster systems O 2010 All rights reserved C 700 07
34. rk done as covered under warranty by Holland Ma rine Parts the relevant part or the whole device will be either repaired or replaced at the discretion Holland Marine Parts free of charge The warranty periods specified in the first paragraph are not extended by the implementation of repairs under warranty Any costs associated with travel transportation and installation and or disassembly with regard to repairs covered under warranty will be borne by the owner of that device Damage to the product caused by improper installation by intentional or unintentional misuse lack of maintenance normal wear and or repair by third parties without the written permission of Holland Marine Parts are not covered by warranty Holland Marine Parts shall under no circumstances be liable for any consequential damages of any nature whatsoever or howsoever caused by the part or the whole product covered by warranty by Holland Marine Parts Please note Exclusion of warranty The pump head of the pump unit and the gaskets on the 3 way valve are tested to be waterproof If they are opened removed damaged this will void all liability towards Holland Marine Parts in the occur rence of damage as a result of these actions In this manual the installation of the JT 30 JT 50 JT 70 and JT 90 is explained Choose the installation procedure that ap plies to the system you have purchased Holland MarineParts 5 Safety read this prior to installation or operat
35. te By opening the valve the watertight seal and bearing is broken Opening the valve will void your warranty e Place of the 3 way valve as close to the nozzles as possible e Mount the 3 way valve to the vessel Use the recesses at the bottom of the valve body for this m8 Possition not necessary horizontal e Allways use the protective cover to protect the electricalparts e See page 22 24 for the Jet Thruster Single electrical installation e See page 27 28 for the Jet Thruster Combi electrical installation Jet Thruster Combi Dirt that builds up in the system will be flushed out during use The function of the 3 way valve allows for an amount of water flowing through even when the valve is not in use In a system that is in operation water flowing out will be observed in all of the nozzles This is normal and indicates that the system is functioning correctly V 200 00 Holland Marine Parts 17 C Position of the nozzles e Based on the type of hull you have chosen a certain nozzle type Select this nozzle type and the corresponding installation instructions from the below scheme Please note Nozzles are equipped with an internal Venturi Do not damage or remove this constriction Weldabl IC Diameter Finishing Steel l 318 00 65 mm 2 59 cut off remaining length SS316 l 320 00 60 mm 2 36 cut off remaining length Aluminium l 322 00 60 mm 2 36 cut off remaining length ENTE KISS CNN DS EE
36. tor ee Contactor support on pump unit y 0 Contactor 4 x 2 5 mm 14 AWG pos 18 on relay VALVE B S2 VALVE A Hu A Holland Marine Parts 55 Appendix D 2 Electrical installation 12V JT 50 Combi use 2x5 A f TA l ji OUUU La Al A Url v Al niani H a LL pe AN 12v o o 56 Holland Marine Parts Contactor support on pump unit Connect battery to free contact at contactor Connect battery to EY cable from E motor see 1 x 2 5 mm 14 AWG pos 18 on relay 4 x 2 5 mm 14 AWG 12V thermal protection from E motor Contactor VALVEA ES P m 0 0 VALVE B Holland Marine Parts 57 Appendix D 3 Electrical Installation 24V Series Parallel Switch IT 50 Combi For correct installation of series parallel switch see page 68 namo namo y y Battery1 CA c Batteryl e 425A Battery2 EX yy Battery2 F and G e DUUU L H ia ILI LI HI Bu CH E A j S J LI Tj K A4 LU 1 3 Y A iu os 4 A 12V O 58 Holland Marine Parts Contactor support on pump unit Connect battery to free contact at contactor F E Series parallel Contactor Connect batt
37. ts Winterising Preferably have the system winterised by a specialist 2 51 mm Please note Frost can do a lot of damage if you fail to drain the system Use a compressor to remove the water present in the system by means of air pressure Please note Excessive pressure may damage the system Check the operating pressure you use to pressurise the system with This operating pressure must not exceed 2 bar 30 psi 3 76 mm Step 1 Disconnect the cable from the battery Step 2 Close all valves Step 3 Remove the blind plug or air valve in the outlet A of the pumpunit Step 4 Screw a compressed air nipple in the outlet Step 5 Pressurise the system MAX 2 BAR 30 psi 3 76 mm Step 6 Open the ball valves one by one and close them the instant you hear a bubbling sound Repeat this procedure for every ball valve Step 7 Remove the compressed air nipple Step 8 Replace the blind plug or airvalve In addition you can drain the pumphouse therefore remove draining plug for draining the pumphouse JT 30 JT 50 JT 70 JT 90 Holland Marine Parts 35 Appendix A exploded View JT 30 JT 50 Single JTS 30 00 JTS 50 00 J 15 30 00 J I5 50 00 331 00 2x l 312 00 l 310 00 l 113 00 309 00 308 00 I 304 00 303 00 306 00 gt l 302 00 36 Holland Marine Parts Pumpunit JT 30 JT 50 3 Way valve V 100 00 Water inlet l 302 00 Hose clamp 77 94 mm l
38. ur in case of spilled fuel fuel leakage or locally present fuel vapor Remove the 8 nuts from the SS316 flange on which the blue plastic pump house is attached This will not disconnect the pump house from the flange a Place the rubber gasket apply sufficient polymer sealant on the rubber gasket and slide the base section on the unit into place The front of the IP Cover points towards the pump outlet as stipulated in this picture Continue with the electrical installation according to diagram See appendix A 1 p 38 A 2 p 40 A 3 p 42 D 1 p 54 D 2 p 56 and D 3 p 58 of this installation manual to correctly install the cabeling There are special recesses casted in the IP Cover Use the recesses in the base of the cover to place glands and create an airtight connection at all times Drill a 76mm or 3 inch hole in both recesses One in the base and one in the top cover and install the plastic hose connector Make absolutely sure you create a airtight connection Apply suitable hose on both hose connectors to enable cooling air run in and out The JT 30 does not have a built in ventilator Use a 12v external engine room ventilator to enable cool air running thru the IP Cover The JT50 is equipped with an internal ventilator This ventilator will create an airflow during operation The ventilator will suck in cool air The air intake has to be installed at the bottom 76mm 3inch hose connector en will expel the air from the top hos
39. y to the system It is preferable to make the connection between this battery and the system as short as possible Use appropriate battery cables and connecting material for this at all times The system must be equipped with the included main fuse which must be installed in the cable You can use the power supply for the joystick from an existing dashboard or ignition switch This needs to be secured with the included 15A fuse The Jet thruster should be provided with a suitable main switch not included The joystick operates on 12V For vessels with a 24V installation a DC DC converter must be applied Cabling Jet Thruster Single Preferably a neoprene cable with 3 x 2 5 mm 14 AWG pump gt valve 2x2 5 mm 14 AWG joystick gt pump Neoprene cables for Jet Thruster Single not included in installation kit Please note For a 12 Volts ship s circuit you need to install a series parallel switch to be able to charge the system on 12V and use it on 24V The JT 50 JT 70 and JT 90 come with a connection wire F and G as a standard accessory for this switch See appendix A2 A3 B1 and C1 for 24V Series parallel and page 68 Recommended battery cabling JT 30 12V 50 mm 1 0 AWG for 1 metre JT 70 24V 70 mm 2 0 AWG for 1 m JT 50 12V 70 mm 2 0 AWG for 1 metre JT 90 24V 90 mm 3 0 AWG for 1 m JT 50 24V 50 mm 1 0 AWG for 1 metre Recommended capacity Holland Marine Parts recommends maintenance free calcium or
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