Cover Removal; Field Wiring - Bray 5A Series Installation, Operation And Maintenance Manual

9. Cover Removal

Access to the S5A/S5B internals is done by removing
the cover from the unit. The steps for removal are
as follows:
Cover removal:
1. Loosen captive cover bolts. The S5A contains
4 bolts and the S5B contain 6 bolts located
around the perimeter of the unit.
2. Pull the cover up and away from unit. Do not
use a wedge device to remove cover.
X
X
3. Perform internal adjustment. Reference position
adjustment section.
Cover Installation:
1. Insure o-ring is seated in the o-ring groove.
2. Press on cover insuring captive bolts are aligned
with the bolt holes.
3. Tighten cover bolts to 13-18 lb-in.

10. Field Wiring

Bray Series 5A VSMs are assembled with a numbered
Euro style 8-pole terminal block. Bray Series 5B VSMs
may be assembled with either a numbered Euro style
12-pole terminal block or with two numbered and
lettered Euro style 10-pole terminal blocks. Number
of terminal blocks are dependent on the switch
model and switch configuration. All switches are
pre-wired into the terminal block. Several features
have been designed to help ease field wiring:
Series 5A and Series 5B Valve Status Monitor
Installation, Operation and Maintenance Manual
• Terminal blocks are angled towards the cover
opening.
• Wiring diagram is attached to the inside of cover.
• Two conduit openings are provided.
Turn off all power and lock out service panel before
installing or modifying any electrical wiring.
• Do not re-machine the conduit entry threads or
create any new holes in the enclosure.
• Do not remove the screw-in conduit plugs until
it is time to wire into the unit's terminal blocks.
• Do not tamper with or modify any exposed
O-rings or gaskets.
• A minimum of 18 AWG wire is recommended
for all field wiring.
• The terminals inside the VSM accept wire sizes
ranging from 14 to 20 AWG.
• The conduit connections must be properly sealed
to maintain the weatherproof integrity of the
VSM enclosure.
Bray Series 5A and 5B VSMs should be wired as
follows:
1. Remove the cover of the VSM.
2. Remove the conduit plug(s).
3. Install appropriate cable or conduit fittings
required to meet application needs and VSM
weatherproof requirements.
4. Terminate the field wiring per the wiring
diagram attached to the inside of the cover.
a. Tighten wires in terminal block to 3.5
lb-in [0.4 Nm].
5. Re-attach VSM cover once position
adjustment has been completed.
a. Tighten cover bolts in a cross pattern to
13-18 lb-in [1.5-2.0 Nm].
Do not use power tools to tighten the cover screws.
NOTICE
NOTICE
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