Norac UC5 Topcon X30, Installation Manual

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25
10.2 Valve Assembly
1. On a clean surface remove the plastic plugs from the block.
2. Install the 6MB-6MOR (F01) fittings into the “P” and “T” ports. Tighten to 18 ft-lbs (24
Nm).
3. Install the 4MB-4MOR (F09) fitting into the “S” port. Tighten to 11 ft-lbs (15 Nm).
4. Insert two orifices (F02) into the “B” ports with the notch facing outward.
5. Insert two orifices (F02) into the “A” ports with the notch facing inward.
6. Install the 6MB-6MOR (F01) fittings into the “A” and “B” ports. Tighten to 18 ft-lbs (24
Nm).
7. Install the 6MBP plug (F04) into the “A” port of the 3 rd station of the block.
8. Install a 6MB-6MOR (F01) fitting into the “B” port of the 3 rd station of the block. Tighten
to 18 ft-lbs (24 Nm).
9. Install the 6MB-6MOR (F12) fittings into the “A” and “B” ports of the expansion block.
Tighten to 18 ft-lbs (24 Nm).
10. Remove the plug from the Sense Line Bleed port. Location is shown in Figure 23 . Gently
tap the plug with a hammer to loosen it before attempting to remove it. To access bleed
orifice, remove the valve coil that is covering it, by unscrewing the nut on the coil. Remove
the Sense Line Bleed Orifice and discard.
11. Install the setscrew (F11) into the Sense Line Bleed Orifice location. Ensure the setscrew is
threaded entirely into the hole and tightened to 35-40 in-lbs (4-4.5 Nm) to ensure a tight
seal. Reinstall the plug and tighten to 35-40 in-lbs (4-4.5 Nm).
Figure 22: NORAC Valve Block Details