Honeywell 43191105, 43191680 User Manual

43191680-1

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APPLICA TION

The 43191680-105 Dual Auxiliary Switch provides two independent, spdt switching functions. Switching points are adjustable over the full length of the actuator stroke; for example, the switch can be used to switch pumps at any point or to provide remote indication of any specific stroke position. These switches are used with valve actuators as shown in Table 1. The switches are furnished factory wired to the terminal block. Fig. 1 illustrates the parts furnished with this switch and the wiring connections.

IMPORTANT

These switches are rated at 24 Vac maximum.

Table 1. Applicable Actuators for

43191680-105 Dual Auxiliary Switches.

Actuator

ML6425A Extends stem ML6425B Retracts stem ML7425A Extends stem ML7425B Retracts stem

Spring Action on

Power Failure

Auxiliary Swi

INSTALLATION INSTRUCTIONS

INSTALLA TION

When Installing this Product...

1 Read these instructions carefully. Failure to follow

them could result in the equipment not operating properly.

2 Check the part numbers in the preceding section to

be sure that the product is suitable for your application.

3 The installer must be a trained, experienced service

technician.

4 After completing installation, use these instructions

to check product operation.

CA UTION

Disconnect the power supply to the auxiliary potentiometer and actuator before beginning installation to prevent electrical shock or equipment damage.

Mounting, Connecting, and Adjusting

1 Remove actuator cover. 2 Mount the auxiliary switch assembly and terminal

label on the actuator base. Make sure the two tabs on the bottom of the switch assembly slip snugly into the slots provided. See Fig. 2.

6 4 5 9 7 8

Fig. 1. Auxiliary switch parts and wiring.

331122

1 2 3 4 5 6

C8394

6 4 5 9 7 8

Fig. 2. Installing auxiliary switch assembly.

3 Secure auxiliary switch assembly by pressing top

back until assembly snaps into place. See Fig. 3.

X-XX UL

63-2524

C8393

43191680-105 AUXILIARY SWITCH

C8395

Fig. 3. Securing auxiliary switch assembly.

4 Secure terminal block and terminal label with Phillips

head screws. See Fig. 4 .

4 MM

3 MM

C8396

Fig. 4. Securing terminal block and label.

CA UTION

The manual spring handle is under tension and could turn quickly when lifted resulting in injury to fingers pinched between the handle and plastic casing. Maintain handle orientation while lifting and remove fingers quickly when releasing.

M6629

Fig. 5. Removing spring retaining clip

and releasing manual spring handle.

6 Adjust switching point for each switch. See Fig. 6.

a. Using manual spring handle on the actuator,

adjust the actuator shaft to the required switching point for Switch S1.

NOTE: Turning the spring handle clockwise

extends the actuator shaft. When the shaft gets to the required position, press the handle down to hold the shaft in position. Turning the spring handle requires two hands, one to turn the handle and the other to hold it in place on each consecutive turn. Observe the preceding caution and release the handle only as noted in the preceding Step 5.

b. Loosen the Phillips head set screw on the

cam for Switch S1, set the cam to the required position, and tighten the set screw.

c. Repeat the preceding Steps 6a and 6b for

Switch S2.

5 Remove manual spring handle retaining clip, if

necessary, and lift and release the handle. See Fig. 5. The easiest way to perform this operation safely is to:

a. Remove the retaining clip (shipping stop) and

discard.

b. Wedge a small, flat-bladed screwdriver under

the manual spring handle at the point marked in Fig. 5 and pry up the handle.

63-2524 2

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