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VTC-1D user manual  

 

Phason 

12  

2009-06-19 

 

 

Limited warranty 

This warranty applies only to the Phason Inc. (Phason) Variable Temperature Control (VTC-1D). If you 
need warranty service, return the product and original proof of purchase to your dealer. 
Phason warrants the VTC-1D 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 VTC-1D 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:

[email protected]

Web site:  www.phason.ca

Summary of Contents for VTC-1D

Page 1: ...idle mode Adjustable temperature set point Adjustable temperature differential Three second full power turn on to minimize fan ice up Two digit LED display Fahrenheit and Celsius display Error code di...

Page 2: ...the enclosure Use watertight strain reliefs or conduit connectors at all cable entry points Before removing electrical knockouts remove the cover to prevent damaging the control Do not make additiona...

Page 3: ...idelines and the guidelines below when extending cables Use two wire 18 AWG jacketed cable Phason recommends Belden 9408 Alpha 5052 or an equivalent Extension cable is also available from Phason For m...

Page 4: ...ower system is 60Hz 4 The display flashes between the temperature display and PF The pf indicates a power interruption has occurred To clear the PF click the switch to the right The control is now in...

Page 5: ...99 N A External knob Temperature differential di 1 to 20 F 0 6 to 12 C 6 F Internal trimmer Off set back oS 0 to 16 F 0 to 9 C 5 F Internal trimmer F or C ambient temp F C 22 to 99 F 30 to 38 C F Int...

Page 6: ...b to the desired setting while holding the switch to the right The temperature set point can be between 32 and 98 F 0 and 38 C 3 Release the switch You must hold the switch to the right while turning...

Page 7: ...factor calculate the correction as follows 1 Set the idle speed properly For more information see Setting minimum ventilation in idle mode on page 8 2 Set the differential to 10 F with the internal tr...

Page 8: ...g the voltage If you are unsure see your fan dealer for the minimum idle voltage for your fan motor 8 Press and hold the switch to the right 9 Turn the Temperature knob to the desired temperature set...

Page 9: ...ture set point When the temperature is between 80 F and 86 F the differential temperature fan speed changes proportionally with the temperature If the temperature increases fan speed increases If the...

Page 10: ...mperature fan speed changes proportionally with the temperature If the temperature increases fan speed increases If the temperature decreases fan speed decreases When the temperature is at or above 86...

Page 11: ...t that is labelled as non corrosive electronics grade or neutral cure such as GE Silicone RTV6780B RTV 142 or RTV 162 Do not use a sealant that is labelled as acetic acid cure or acetoxy cure These se...

Page 12: ...rovide 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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