background image

IOM-T-743

Installation, Operation and Maintenance

Actuator Motor 743

WARNING

!

Please read carefully before proceeding with  
installation. Your failure to follow any attached  
instructions or operating parameters may lead to the 
product’s failure.  
Keep this Manual for future reference.

0

.2 .4 .6 .8 1

Introduction

The Actuating Motor 743 uses a floating action signal to adjust the position 

of a mixing valve. It is compatible with tekmar brass mixing valves 710 to 

724. It provides 88 in•lbs (10 N•m) of torque over a 90° rotation.

Summary of Contents for tekmar 743

Page 1: ...any attached instructions or operating parameters may lead to the product s failure Keep this Manual for future reference 0 2 4 6 8 1 Introduction The Actuating Motor 743 uses a floating action signal to adjust the position of a mixing valve It is compatible with tekmar brass mixing valves 710 to 724 It provides 88 in lbs 10 N m of torque over a 90 rotation ...

Page 2: ...nstallation Check the Contents 4 Preparation 4 Tools Required 4 Materials Required 4 Installation Location 4 Rough In Wiring 5 Mounting 5 Wiring 6 Final Assembly 7 Testing and Troubleshooting 7 Technical Data 7 Limited Warranty and Product Return Procedure 8 ...

Page 3: ...fies hazards which if not avoided could result in minor or moderate injury This symbol identifies practices actions or failure to act which could result in property damage or damage to the equipment It is the installer s responsibility to ensure that this control is safely installed according to all applicable codes and standards This control is not intended for use as a primary limit control Othe...

Page 4: ...on and Operation Manual IOM T 743 Preparation Tools Required tekmar or jeweller screwdriver Phillips No 1 head screwdriver Wire Stripper Materials Required 3 conductor 18 AWG LVT solid wire Installation Location Choose the placement of the actuator motor early in the construction pro cess to enable proper wiring during rough in Consider the following Keep dry Avoid potential leakage onto the contr...

Page 5: ...the anti rotation bolt into one of the threaded holes on the mixing valve Do not align the anti rotation bolt with the actuator motor corner cavity Install coupler onto mixing valve stem ensuring that it is pushed all the way on Black coupler for 3 way valves 710 711 712 713 714 White coupler for 4 way valves 720 721 722 723 724 Install actuator body onto the coupler 10 0 0 2 4 6 8 1 Screw Handle ...

Page 6: ...e control Connect the Com terminal to the Common terminal on the control Actuating Motor 743 C 1 2 3 Mixing Control Powered Output R R C Opn Cls Clockwise to Open C C R R C 1 2 3 Mixing Control Unpowered Output R Opn Cls Mix Actuating Motor 743 Class 2 Transformer 24 V ac Clockwise to Open Counterclockwise to Open Connect the rotate counterclockwise terminal to the open wiring terminal on the cont...

Page 7: ...n Use the handle to manually adjust the valve position When the handle is set to 0 the valve should be closed and there should be no heat transfer When the handle is set to 1 the valve should be fully open and there should be heat transfer To return to automatic operation use a flat blade screwdriver and set the manual override dial to the A position 0 2 4 6 8 1 0 2 4 6 8 1 Manual override dial Ac...

Page 8: ... customers which are different from or in excess of the tekmar Limited Warranty are the Purchaser s sole responsibility and obligation Purchaser shall indemnify and hold tekmar harmless from and against any and all claims liabilities and damages of any kind or nature which arise out of or are related to any such representations or warranties by Purchaser to its customers The pass through Limited W...

Reviews: