Danfoss OFC Installation guide
Installation guide
Check and Stop valve
Type OFC
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Refrigerant: |
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For a complete list of approved refrigerants, visit http://store.danfoss.com/ and search for individual code |
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numbers, where refrigerants are listed as part of product details. |
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Oil: OFC valve is designed for an oil-free environment |
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Media Temperature: |
Max. Working Pressure: |
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Min. 0 C / 32 F |
PS/MWP = 23 bar / 334 psig |
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Max. 90 C / 194 F, short term up to 100 C / 212 F |
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Contents of accessory box
•Outlet flange for 3 1/8 in. copper tube
•Outlet flange fasteners
•O-ring for outlet flange
•O-ring lubrication (2 gram)
•Additional check valve springs (2 pcs):
-Yellow spring, for 45 down orientation
-Red spring, for horizontal orientation
Interface Connections:
Install valve directly on Danfoss Turbocor compressor, picture shown with vertical down installation.
All fasteners and bolts require stainless steel. Bolts with minimum class A2-70.
NOTE: Protection of entire valve including steel flange is recommended after installation for outdoor use.
Reference specific compressor requirements
Ball valve clocking may be changed by removing bolts and rotating ball valve housing without retracting the ball valve assembly away from the elbow.
NOTE: refer to check valve orientation options |
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Torque: 38 Nm ± 4 Nm |
Staging Port: |
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Bolt size – M10x1.5 |
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Torque: 38 Nm ± 4 Nm |
Outlet Flange Fasteners:
Torque - 110 Nm
<![endif]>020R5421
<![if ! IE]><![endif]>Info for UK customers only: Danfoss Ltd. Oxford Road, UB9 4LH Denham, UK.
© Danfoss | Climate Solutions | 2021.06 |
AN371420239255en-000101 | 1 |
Outlet Flange Brazing: |
Min 5% Ag |
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Place outer flange on evenly cut copper pipe |
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NOTE: ensure flange is not mounted on main housing during brazing
Orientation: |
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When changing check valve spring: |
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1. Remove check valve insert from main housing |
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2. Remove check valve head |
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NOTE: Check valve spring must be changed when using any |
3. Remove spring and replace with correct color based on in- |
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tended orientation |
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orientation other than vertical downing |
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4. Replace check valve head and insert |
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5. Install outlet flange, O-ring and fasteners |
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Vertical up |
<![if ! IE]> <![endif]>Danfoss 20R01 |
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Not allowed |
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45° up |
45° up |
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Not allowed |
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Not allowed |
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Main housing |
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Horizontal |
Horizontal |
Red spring |
Red spring |
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Check valve insert |
45° down |
45° down |
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Yellow spring |
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Yellow spring |
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Vertical down |
NOTE: Use silicone lubricant spray |
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Blue spring |
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(as delivered) |
at O-ring if needed |
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Always replace lock ring and cap after opening/ closing the |
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ball valve |
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Check valve head
Check valve spring
Outlet flange,
O-ring and fasteners
NOTE: Apply provided lubrication to
O-ring
2 | AN371420239255en-000101 |
© Danfoss | Climate Solutions | 2021.06 |
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