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For more information on Direct Coil products call (613) 544 2200 | 5055 Taylor Kidd Blvd, Millhaven, Ontario K0H 1G0 

www.directcoil.com 

All  piping  must  be  installed  only  by  a  licensed 
plumbing  contractor,  and  in  compliance  with  local 
codes.  It is the responsibility of the  engineer and/or 
the  piping  contractor  to  ensure  that  the  piping  is 
correctly sized in relation to the installation. 

Operation and Maintenance 

First Use 
Air Distribution 

1.

 

Uniform  air  flow  is  crucial  to  coil  performance  and 
should not vary significantly across the coil face 

2.

 

Air velocities should be maintained between 200 and 
550 feet per minute without a mist eliminator and 
between 200 and 700 feet per minute with a mist 
eliminator 

3.

 

The drain pan should be designed and installed 
such that there is no standing water 

4.

 

The maximum operating temperature is 350°F for any 
Direct Coil coils 

Filters 

Filters  upstream  of  the  coil  should  be  checked  regularly 
for dirt and clogging. If the filters are dirty, they should be 
cleaned or replaced. It is important that the coils be clean 
to maintain maximum heat transfer capability. 

Cleaning 

1.

 

Coils must be cleaned periodically to obtain maximum 
performance.  Soiled  fins  reduce  the  capacity  of  the 
coil, and demand more energy from the fan 

2.

 

Periodic  inspection  of  the  coil  for  signs  of  damage, 
leaks or corrosion is  also recommended. Any repair 
or  replacement  of  parts  should  be  performed  by  a 
qualified professional. 

3.

 

Any  fluid  passing  through  the  coil  should  be  free  of 
any  sort  of  contaminants.  Periodic  testing  and 
correction will enable the coil to last longer. 

4.

 

Fins  can  be  cleaned  using  spray  washers  or  using 
commercial  cleaners.  Care  must  be  taken  not  to 
damage the coils and to not allow water to touch any 
electrical  equipment.  However,  caution  should  be 
exercised  when  working  with  the  fins  as  the  sharp 
edges can cause serious personal injury. 

5.

 

When  the  coil  surface  itself  needs  cleaning,  ensure 
an  appropriate solution  and  equipment  are  selected 
to avoid damage to the coil and/or enabling any health 
hazards. Cleaning should be done inwards from the 
airflow  exit  so  any  contaminant  will  later  be  pushed 
out of the coil

. Follow the manufacturer’s instructions 

with any cleaning solution or equipment 

 

 

Summary of Contents for REFRIGERANT COILS

Page 1: ...INNOVATIVE HEAT TRANSFER PRODUCTS REFRIGERANT COILS INSTALLATION AND OPERATING MANUAL A SINGLE SOURCE FOR ALL YOUR COIL NEEDS AND CUSTOM ENGINEERED HEAT TRANSFER PRODUCTS ...

Page 2: ...rectcoil com Contents INTRODUCTION 2 TYPES 2 FEATURES 2 NOMENCLATURE 2 DRAWINGS 2 INSTALLATION 3 RECEIVING 3 INSTALLATION 3 RECOMMENDATIONS 3 LIFTING INSTRUCTIONS 3 PIPING SCHEMATICS 3 OPERATION AND MAINTENANCE 4 FIRST USE 4 AIR DISTRIBUTION 4 FILTERS 4 CLEANING 4 WINTERIZING COILS Error Bookmark not defined WARRANTY 5 ...

Page 3: ... a distributor valve with copper pipes that feed the coil Features A refrigerant coil has five main features Connections Casing Fins Headers Distributor s only direct expansion coils Nomenclature Any coil is designated a standard Direct Coil model number Ex 5DC 02 30 0 08 45 0 20 5 Tube OD This parameter is codified by the following table Number Tube OD Tube Pattern 2 5 16 1 00 X 0 625 1 3 8 1 00 ...

Page 4: ... no loss of pressure Thoroughly leak test the coil and system including all brazed joints 10 It is important follow proper methods for evacuating and charging systems with refrigerant Use the compressor manufacturer s recommendations for charging the system with refrigerant and starting the compressor After the system is started adjust TXV superheat following TXV manufacturer s directions All pipe...

Page 5: ... It is important that the coils be clean to maintain maximum heat transfer capability Cleaning 1 Coils must be cleaned periodically to obtain maximum performance Soiled fins reduce the capacity of the coil and demand more energy from the fan 2 Periodic inspection of the coil for signs of damage leaks or corrosion is also recommended Any repair or replacement of parts should be performed by a quali...

Page 6: ...rior written authorization Any claim under this warranty shall be made to Direct Coil in writing within the warranty period specified above otherwise such claim shall be deemed waived In the event that parts of equipment have to be returned to the factory for repairs return goods authorization number must be obtained by contacting sales department No return goods shipment will be accepted without ...

Page 7: ...6 For more information on Direct Coil products call 613 544 2200 5055 Taylor Kidd Blvd Millhaven Ontario K0H 1G0 www directcoil com ...

Page 8: ...7 For more information on Direct Coil products call 613 544 2200 5055 Taylor Kidd Blvd Millhaven Ontario K0H 1G0 www directcoil com ...

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