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Troubleshooting  

Phason 

8  

2009-09-10 

 

 

Limited warranty 

This warranty applies only to the Phason Inc. (Phason) Modulating Temperature Control (MTC-
4C). If you need warranty service, return the product and original proof of purchase to your 
dealer. 
Phason warrants the MTC-4C subject to the following terms and conditions. 
This warranty is valid only to the original purchaser of the product, for two years from the 
manufacturing date. The manufacturing date is stated in the first eight digits of the serial number 
in the form year-month-day.  
Phason hereby warrants that should this product fail because of improper workmanship, Phason 
will repair the unit, effecting all necessary parts replacements without charge for either parts or 
labor. 

Conditions 

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Installation must be done according to Phason’s enclosed installation instructions. 

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The product must not have been previously altered, modified, or repaired by anyone other 
than Phason. 

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The product must not have been involved in an accident, misused, abused, or operated or 
installed contrary to the instructions in our user and/or installation manuals. Phason's opinion 
about these items is final. 

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The person requesting warranty service must be the original purchaser of the unit, and 
provide proof of purchase upon request. 

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All transportation charges for products submitted for warranty must be paid by the purchaser.

Except to the extent prohibited by applicable law, no other warranties, whether expressed or 
implied, including warranties of merchantability and fitness for a particular purpose, shall apply to 
this product. Any implied warranties are excluded.  
Phason is not liable for consequential damages caused by this product.  
Phason does not assume or authorize any representatives, or other people, to assume any 
obligations or liabilities, other than those specifically stated in this warranty. 
Phason reserves the right to improve or alter the MTC-4C without notice. 

 

Phason controls are designed and manufactured to provide reliable performance, but they 
are not guaranteed to be 100 percent free of defects. Even reliable products can experience 

occasional failures and the user should recognize this possibility.  
If Phason products are used in a life-support ventilation system where failure could result in 
loss or injury, the user should provide adequate back up ventilation, supplementary natural 
ventilation, or an independent failure-alarm system. The user's lack of such precautions 

acknowledges their willingness to accept the risk of such loss or injury. 

 

 
 

Phone: 204-233-1400
Fax: 204-233-3252 

Phason Inc. 

2 Terracon Place 
Winnipeg, Manitoba, Canada 
R2J 4G7 

E-mail:

support@phason.ca

Web site:  www.phason.ca 

Summary of Contents for MTC-4C

Page 1: ...ode or operates the fans at the idle speed idle mode The MTC 4C is ideal for poultry livestock greenhouse or light industrial buildings Electrical ratings Input 120 230 VAC 60 Hz Variable stage 10 A a...

Page 2: ...fore removing electrical knockouts remove the cover to prevent damaging the control Do not make additional holes in the enclosure this can damage the watertight seal or components and void the warrant...

Page 3: ...bles Do not run the sensor cable beside AC power cables or near electrical equipment When crossing other cables or power lines cross them at a 90 degree angle Service Panel Enclosure C F E B A D Probe...

Page 4: ...e extension cable to the temperature probe cable as shown on the next page If the unit operates erratically with the extended probe run the cable along a different path or shorten it C A A C E D F A S...

Page 5: ...on 3 Turn the Idle Speed knob to the minimum idle speed desired 4 Turn the Temperature knob to the desired temperature Using idle mode 1 Position the jumper as shown in section G on page 3 2 Turn the...

Page 6: ...or acetoxy cure These sealants release acetic acid while curing which can damage the control and will void the warranty 4 Check all wires to make sure they are properly connected and that they are in...

Page 7: ...current rating of the control The fan motor growls To ensure the motor is working disconnect the line at terminal 1 and terminal 4 and then connect these lines together The fan should run at full spe...

Page 8: ...ovide proof of purchase upon request All transportation charges for products submitted for warranty must be paid by the purchaser Except to the extent prohibited by applicable law no other warranties...

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