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tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.

Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
(250) 545-7749  Fax. (250) 545-0650
Web Site: www.tekmarcontrols.com

Product design, software and literature are Copyright © 2010 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.

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All specifications are subject to change without notice.

Printed in Canada. D 156 - 06/10.

Limited Warranty and Product Return Procedure

Technical Data

Difference Setpoint Control 156 

On/Off

 

Literature 

—  D 156,  A 156,  D 001,  D 070,  D 085

Control 

—  Microprocessor control; This is 

not a safety (limit) control

Packaged weight 

—  0.78 lb. (355 g)

 

—  Enclosure C, White PVC Plastic

Dimensions 

—  4-3/4” H x 2-7/8” W x 7/8” D (120 x 74 x 22 mm)

Approvals  

—  CSA C US, CSA 22.2 N

24 and UL 873, meets class B: ICES & FCC Part 15

Ambient conditions 

—  Indoor use only, -20 to 120°F (-30 to 50°C), < 90% RH non-condensing

Power supply 

—  24 V (ac) ±10%, 50/60 Hz, 3 VA

 

—  24 V (dc) ±10% 0.03 A

Relay 

—  240 V (ac) 10 A 1/3 hp

Sensors 

—  NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892

 

included: 

—  1 of Solar Sensor 085

 

 

—  1 of Universal Sensor 071

Limited Warranty 

The liability of tekmar under this warranty is lim-

ited. The Purchaser, by taking receipt of any tekmar product (“Prod-
uct”), 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 pass-through 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 pass-through 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 docu-
mented 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 prod-
uct; or to the exchange of the defective product for a warranty replace-
ment 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  liabil-
ity, 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 work-
manship or materials, including any liability for fundamental breach of 
contract.

The pass-through Limited Warranty applies only to those defective Prod-
ucts  returned  to  tekmar  during  the  warranty  period.  This  Limited  War-
ranty 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 Lim-
ited Warranty are the Purchaser’s sole responsibility and obligation. Pur-
chaser 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 Pur-
chaser to its customers.

The pass-through Limited Warranty does not apply if the returned Prod-
uct 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 WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS 
OR IMPLIED, WHICH THE GOVERNING LAW ALLOWS PARTIES TO 
CONTRACTUALLY EXCLUDE, INCLUDING, WITHOUT LIMITATION, 
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 COMPLIANCE WITH OR NON-VIOLA-
TION OF ANY APPLICABLE ENVIRONMENTAL, HEALTH 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 PRODUC-
TION 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 informa-
tion regarding the appropriate Representative.

Содержание Difference Setpoint Control 156

Страница 1: ...a heat source Additional functions include 24 V ac OR 24 V dc power supply Monitor Minimum Maximum temperatures for Source Storage Displays number of running hours of the relay Displays T hours to per...

Страница 2: ...e 156 has three push buttons Item for selecting viewing and adjusting settings When programming the control record settings in the PRGM menu table which is found in the second half of this brochure It...

Страница 3: ...that follows will explain the on and off points of the relay T Source Maximum Minimum Storage T hours Diff l Item Number Field Displays the current value of the selected item Item Field Displays the c...

Страница 4: ...low the Minimum Source Setpoint the relay is turned off The relay remains off until the source temperature rises above the Minimum Source Setpoint plus the Minimum Source Differential The Source Minim...

Страница 5: ...429 50 29 34 C 446 60 70 F 57 C 411 60 55 48 C 425 Table 1 K values at 120 F 49 C for different heat transfer solutions based on glycol K increases with temperature Improper installation and operation...

Страница 6: ...and sensors Test the Sensors In order to test the sensors the actual temperature at each sensor location must be measured A good quality digital thermometer with a surface temperature probe is recomme...

Страница 7: ...he control These terminals are to be used as a switch to either make or break the pump circuit When the 156 requires the pump to run it closes the contact between terminals 3 and 4 Sensors and Un powe...

Страница 8: ...s Diff l 76 to 284 F 60 to 140 C STORAGE TEMPERATURE Current storage temperature as measured by the storage sensor HEAT is displayed if the relay is closed T Source Maximum Minimum Storage T hours Dif...

Страница 9: ...down buttons for 1 second T Source Maximum Minimum Storage T hours Diff l 0 to 999 999 hr RELAY RUNNING HOURS Number of Relay running hours since this item was last cleared The control will display t...

Страница 10: ...Default 40 F 4 C SOURCE MINIMUM SETPOINT If the Source temperature drops below this setpoint the relay is turned off T Source Maximum Minimum Storage T hours Diff l 2 to 45 F 1 to 25 C Default 10 F 6...

Страница 11: ...f l EEPROM READ ERROR The control was unable to read a piece of information from its EEPROM This error can be caused by a noisy power source The control will load the factory defaults and stop operati...

Страница 12: ...ether direct indirect special secondary incidental or consequential arising from ownership or use of the product or from defects in work manship or materials including any liability for fundamental br...

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