M835 Series DAMPER MOTOR 2-POSITION

24 volt motor suitable for control of zone or changeover damper in heating and air condition-

ing systems. Designed for direct control of damper, no linkage necessary. Motor timing 18 seconds to open, 160 seconds to close. SPST auxiliary switch makes within 20 seconds of full open, breaks within 20 seconds after start of closing stroke. Motor torque: 4 in.-lb. or 400 square inches of bearing-mounted damper. Mounting template included.

CAT. NO. MFG. NO. 1C658

M835A1051

VOLTAGE EACH 24

$424.09

DRAFT DAMPER MOTOR

M847A Series 2-POSITION

Used with a 2-wire 24 volt thermostat to oper- ate the draft damper on solid fuel furnaces or

boilers. Actuator wheel is powered clockwise upon call for heat, spring return to original position when thermostat is satisfied. Equipped with a mounting bracket for wall, duct or direct mount- ing, to control the damper with a chain linkage.

CAT. NO. MFG. NO. 1C652

M847A1080

VOLTAGE TIMINGS STROKE EACH 24

20 sec. 45° $181.98

M436 & M836 Series SPRING RETURN

DAMPER MOTORS

Spring return motors for residential and light commercial installations such as outdoor air, backdraft and changeover dampers and two-position zone control. Has SPDT auxiliary switch for operating other equipment. Spring returns the motor to start position on power interruption. Drive shafts on both ends of motor. Motors have a thermal breaker for overload protection during the lifting stroke or in a stalled condition. Mounting brackets and a drive linkage included. Angular stroke 75°, maxi- mum load torque 20 pounds, and damper blade area 13 sq. ft. Nominal opening time 30 seconds.

CAT. NO. MFG. NO. 1C655 1C656

M836A1042 M436A1116

VOLTAGE EACH 24

120

$500.13 $506.13

MODUTROL MOTOR SELECTION Old Style to Modutrol IV™ Replacements

Nearly all obsolete Honeywell modutrol motors can be directly replaced by the newer Modutrol IV™ series. The Modutrol IV™ motors feature multiple mounting options, selectable stroke, adjustable timing, interchangeable transformers and add-on switch options, allowing an inventory of just a few motors and accessories to cover a vast range of replacement applications. The chart below lists some of the most widely used obsolete models and their Modutrol IV™ replacements.

To replace this obsolete model: M644A1016 M644D1005 M941C1014 M941D1005 M944A1010 M945A1017 M945F1004 M845A1027 M934A1284 M934A1342 M954A1035 M954D1016 M955A1024 M955C1014

M6184D1035 M6184D1035 M9184D1021 M9184D1021 M9184D1021 M9185D1004 M9185A1004 M8185D1006 M9164D1009 M9164D1009 M9184D1021 M9184D1021 M9185D1004 M9185D1004

Use this Modutrol IV™ model: CAT. NO. NOTES 1C702 1C702 1C707 1C707 1C707 1C712 1C712 1C703 1C704 1C704 1C707 1C707 1C712 1C712

Use 160° stroke selection

Add 220736B (1C709H) auxilary switch Add 220736A (1C709) auxilary switch Add 220736B (1C709H) auxilary switch

Use “Auxiliary” end of motor Add 220736A (1C709) auxilary switch

Add 220736B (1C709H) auxilary switch

756

CONTROLS