Honeywell 201052A, 201052B Installation Instructions

201052A,B Auxiliary Switch

APPLICATION

The 201052A or B Auxiliary Switch is used in conjunction with the ML6161/ML7161 Direct Coupled Actuator. It allows for control of equipment external to the actuator (for example, electric reheat coils and fan) at an adjustable point in the actuator stroke (from 0° to 90°).

Models:

201052A: Contains one auxiliary switch. 201052B: Contains two auxiliary switches.

Electrical Ratings:

50 VA, pilot duty at 24 Vac, selective not simultaneous.

Switching:

Single-pole, double-throw (spdt) micro switches.

Switch Differential:

Three angular degrees maximum.

Approvals:

Underwriters Laboratories Inc. Recognized: File No.

E4436, Guide No. XAPX.

Dimensions:

See Fig. 1.

2-1/4

(57)

1-2/3

(42)

5/8

(15)

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INSTALLATION INSTRUCTIONS

INSTALLATION

When Installing this Product...

1.Read instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.

2.Check ratings and descriptions given in specifications to make sure product is suitable for your application.

3.Installer must be a trained, experienced service technician.

4.After installation is complete, check out product operation as provided in these instructions.

CAUTION

Electrical Shock or Equipment Damage Hazard. Can shock individuals or short

equipment circuitry.

Disconnect power supply before installation. Actuators with auxiliary switches can have more than one disconnect.

CAUTION

Actuator Damage Hazard.

Turning motor output hub by hand or wrench can damage internal gears.

Ensure declutch button is depressed while manually turning hub.

1.Determine desired switching action (if switch is to energize during clockwise or counterclockwise rotation). With switch cam as shown in Fig. 2,

the normally closed contact opens during counterclockwise rotation and the normally open switch closes.

M2159B

3-3/8 (86)

Fig. 1. Dimension drawing in in. (mm).

®U.S. Registered	Trademark			63-2218-1
Copyright © 1997	Honeywell Inc. •	• All Rights Reserved	X-XX UL

201052A,B AUXILIARY SWITCH

COM

NO

NC

CCW

IMPORTANT

Make certain that the switch activates at the desired degree of stroke.

M2160

Fig. 2. Switching configuration for counterclockwise rotation (top view).

Conversely, with the switch cam as shown in Fig. 3, the normally closed contact opens during clockwise rotation and the normally open switch closes.

COM

NO

NC

CW

M2161

Fig. 3. Switching configuration for clockwise rotation (top view).

2.Align the switch hub with the set screws on the actuator. See Fig. 4. Mount the switch on the actuator and tighten the three captive screws.

3.Engage the declutch and rotate the hub to the desired position for switch operation.

NOTE: When installed, the angular position indicator on the switch face moves from 90° to 0° during counterclockwise motion and from

0° to 90° during clockwise motion.

4.Disengage declutch.

5.With a screwdriver, move cam inside switch assembly to the appropriate position. Remember, the direction of travel of the cam for switching purposes (see Fig. 2 and 3). Monitor the switch closure with an ohmmeter for a continuity check. See Table 1.

NOTES:

—For two switch models, cams align with their respective switches and are each individually set using the same procedure described in the Installation section.

—Switches may also be preset prior to installation on the actuator if the angular switch position is known.

	RANGE STOP PIN	201052 AUXILIARY
	POINTED TOWARD	SWITCH
	SHAFT
		N N
	90	C O
		COM
	75
	60
	45
	30
	15
	0

CW

COM

CCW

M10250

Fig. 4. ML6161 DCA with 201052A Auxiliary Switch.

	Table 1. Proper continuity measurements.
		Normally Open Contacts	Normally Closed Contacts
Switch Activated		Zero ohms	Infinite ohms
Switch Not Activated		Infinite ohms	Zero ohms

Home and Building Control	Home and Building Control
Honeywell Inc.	Honeywell Limited-Honeywell Limitée
	M2H 3N7

Helping You Control Your World®

By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising out of your use or modification to, the literature. You will defend and indemnify Honeywell, its affiliates and subsidiaries, from and against any liability, cost, or damages, including attorneys’ fees, arising out of, or resulting from, any modification to the literature by you.

63XX--2218XXXX——1XB.B. Rev. 10-97 Printed in Mexico

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