DriSteem Vapor-logic3 Instructions d'exploitation télécharger pdf (Page 15)

Figure 13-1: Probe wiring

Brown (full) top probe rod Level A

Orange (refill) middle probe rod Level B

Violet (low water) bottom probe rod Level C

or DI model low-water cutoff switch

Probe wiring to be

18-gauge stranded

wire run in conduit

independent of line

voltage wiring.

Do not use shielded

cable for probe

wiring.

Installation:

Wiring techniques

Proper wiring procedures (cont.).

Installation

Proper wiring prevents electrical noise (cont.)

• Do not use chassis or safety grounds as current-

carrying commons. No safety grounds should

ever be used as a conductor or neutral to return

circuit current.

• When wiring external electrical connections to

humidistats, room/duct humidity and

temperature transmitters, or control signal input

connections from a building control system, use

18-gauge (minimum) plenum-rated twisted-pair

wire, Belden #88760, with cable shielding and

drain wire for grounding.

• Return all shielded cable connections to the

control cabinet for grounding. Do not ground

shield at the device end.

• IMPORTANT: Locate the control cabinet

so that wire lengths are 50 feet or less to the

humidifier.

• Use 18-gauge stranded wire run in conduit (see

Figure 13-1) for probe and low-water cut off

wiring.

• IMPORTANT: Do not use shielded cable

for probe wiring.

OM-VL3-11

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DriSteem Vapor-logic3 Instructions d'exploitation Page 15