The Actuating Motor 742 uses a 0-10 or 2-10 V (dc) 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. The rotation direction
is selected by a toggle switch.
to all applicable codes and standards. This electronic device is not intended for use as
a primary limit control. Other controls that are intended and certified as safety limits
must be placed into the control circuit. tekmar Control Systems is not responsible for
damages resulting from improper installation and/or maintenance.
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information can result in
personal injury, property damage, or damage to the equipment.
Keep this Manual for future reference.
Installation
Check the Contents
Check the contents of this package. If any of the contents listed are missing or
damaged, please refer to the Limited Warranty and Product Return Procedure on
the back of this b rochure and contact your wholesaler or tekmar sales representative
for assistance. Type 742 includes:
One Actuator Motor 742
•
One black coupler
•
One white coupler
•
One screw
•
One handle
•
One reversible scale plate
•
One anti-rotation bolt
•
One Installation and Operation Manual
•
742_D
Preparation
Tools Required
tekmar or jeweller screwdriver
•
Phillips No.1 head screwdriver
•
Materials Required
2 conductor, 18 AWG LVT solid wire•
Installation Location
Choose the placement of the actuator motor early in the construction process to
enable proper wiring during rough-in.
Consider the following:
Keep dry. Avoid potential leakage onto the control.
•
Relative Humidity less than 95%. Non-condensing environment.
•
No exposure to extreme temperatures beyond 32-122°F (0-50°C).
•
Away from equipment, appliances, or other sources of electrical interference.
Install actuator cover onto the actuator. Using a Phillips screwdriver, tighten the
two screws.
•
Install the scale plate.
•
For clockwise to open installations, face scale plate with 0 on the left and 1 on
the right.
•
For counterclockwise to open installations, face scale plate with 1 on the left
and 0 on the right.
•
Install actuator handle onto the actuator spline.
•
Install actuator screw through hole in the handle. Using a flat head screwdriver,
tighten until snug. Do not overtighten.
Testing and Troubleshooting
The actuator motor includes a manual override.
To engage manual operation, use a flat blade screwdriver and set the manual
override dial to the “hand” position.
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.
Limited Warranty The liability of tekmar under this warranty is limited. The Purchaser, by taking receipt
of any tekmar product (“Product”), acknowledges the terms of the Limited Warranty in effect at the time
of such Product sale and acknowledges that it has read and understands same.
The tekmar Limited Warranty to the Purchaser on the Products sold hereunder is a manufacturer’s passthrough warranty which the Purchaser is authorized to pass through to its customers. Under the Limited
Warranty, each tekmar Product is warranted against defects in workmanship and materials if the Product
is installed and used in compliance with tekmar’s instructions, ordinary wear and tear excepted. The passthrough warranty period is for a period of twenty-four (24) months from the production date if the Product is
not installed during that period, or twelve (12) months from the documented date of installation if installed
within twenty-four (24) months from the production date.
The liability of tekmar under the Limited Warranty shall be limited to, at tekmar’s sole discretion: the cost of parts
and labor provided by tekmar to repair defects in materials and / or workmanship of the defective product; or to
the exchange of the defective product for a warranty replacement product; or to the granting of credit limited to
the original cost of the defective product, and such repair, exchange or credit shall be the sole remedy available
from tekmar, and, without limiting the foregoing in any way, tekmar is not responsible, in contract, tort or strict
product liability, for any other losses, costs, expenses, inconveniences, or damages, whether direct, indirect,
special, secondary, incidental or consequential, arising from ownership or use of the product, or from defects in
workmanship or materials, including any liability for fundamental breach of contract.
The pass-through Limited Warranty applies only to those defective Products returned to tekmar during the warranty period. This Limited Warranty does not cover the cost of the parts or labor to remove or transport the defective Product, or to reinstall the repaired or replacement Product, all such costs and expenses being subject to
Purchaser’s agreement and warranty with its customers.
Any representations or warranties about the Products made by Purchaser to its 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 Warranty does not apply if the returned Product has been damaged by negligence by persons other than tekmar, accident, fire, Act of God, abuse or misuse; or has been damaged by modifications, alterations or attachments made subsequent to purchase which have not been authorized by tekmar; or if the Product was
not installed in compliance with tekmar’s instructions and / or the local codes and ordinances; or if due to defective
installation of the Product; or if the Product was not used in compliance with tekmar’s instructions.
THIS WARRANT Y IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IM PLIED, W HICH THE GOVERNING
LAW ALLOWS PARTIES TO CONTRACTUALLY EXCLUDE, INCLUDING , WITHOUT LIMITATIO N, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DURABILITY OR DESCRIPTION OF THE PRODUCT, ITS NON-INFRINGEMENT OF ANY RELEVANT PATENTS OR TRADEMARKS, AND
ITS CO MPLI ANCE WITH OR NON-VIOLATION OF ANY APPLI CABLE EN VIRO NMENTAL , HEA LT H OR SAFETY
LEGISLATION; THE TERM OF ANY OTHER WARRANTY NOT HEREBY CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT SHALL NOT EXTEND BEYOND TWENTY-FOUR (24) MONTHS FROM THE PRODUCTION
DATE, TO THE EXTENT THAT SUCH LIMITATION IS ALLOWED BY THE GOVERNING LAW.
Product Warranty Return Procedure All Products that are believed to have defects in workmanship or materials must be returned, together with a written description of the defect, to the tekmar Representative assigned to
the territory in which such Product is located. If tekmar receives an inquiry from someone other than a tekmar
Representative, including an inquiry from Purchaser (if not a tekmar Representative) or Purchaser’s customers,
regarding a potential warranty claim, tekmar’s sole obligation shall be to provide the address and other contact
information regarding the appropriate Representative.
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or
other reproductive harm. For more information: www.watts.com/prop65