Control Products D208 User Manual

TYPE D208

ACTUATOR PILOT

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TYPE D208

ELECTRONIC ACTUATOR PILOT

WITH ELECTRONIC TIME

CONTROLLER

CONTROLS to 150 PSIG

●Can save more than 4 times it’s cost in

building heating in one year.

●Controlled Incremental Positioning of

Main Valve

●Electronic Time Controller (ETC) Opens

and/or Closes Valve in up to 96 Minute
Time Period*

●Ambient Temperatures 20 to 120 °F

(-7 to 49°C)

●For use with Balanced Main Valve only

OPTIONS

●Back-up (B.U.) Power Supply for up to 6 hours

continued service during power failure.

●Explosion proof actuator, NEMA

T

YPICAL CONFIGURATIONS

S

LOW OPEN/C

LOSE PRESSURE

…………ED208D

TYPE D208 ELECTRONIC PILOT ACTUATOR

A

PPLICATIONDATA

●

Building Control Systems

R

ATINGS

D208 120VAC, 50-60HZ, .3 AMPS
ETC 120VAC, 50-60HZ, .3 AMPS
B.U. Power Supply 120VAC, 60HZ, up to 6 AMPS

Canadian Registration # OC 0591.9C

*Timing periods are selectable from 6-96 minutes in 6 minute

increments by setting a binary dip switch.

TYPE D208

ELECTRONIC ACTUATOR PILOT

WITH ELECTRONIC TIME

CONTROLLER

S

PECIFICATION

The Actuator Pilot shall slowly close and/or open the steam
system in a safe, quiet manner by incrementally reducing and/or
increasing the pressure under the main valve diaphragm until it
reaches dead-end shutoff or is fully open. In the event of a power
failure, it shall stop in its present position unless a back-up power
supply is specified. Such backup power supply shall provide a
minimum of specified hours of operation and be maintained in a
fully charged standby condition automatically.
The Actuator Pilot shall be controlled by a totally solid state
Electronic Time Controller which shall incrementally open and/or
close the Actuator Pilot with 320 pulses in periods from 1-1/2, 2­1/2, 3, 6 - 96 minutes and shall be field adjustable in multiples of
6 minutes.

MATERIALS OF CONSTRUCTION

Body, Cast Iron …………………………ASTM 126 Cl. B
Body, Carbon Steel …………………ASTM 216 Gr. WCB
Stem ……………………303 St. Stl. ASTM 582 Cond. A
Disc …………………440 St. Stl ASTM 276-75 Cond. A
Seat ……………………420 St. Stl. ASTM 276 Cond. A
Gasket ………………………………………Non-asbestos

TYPE D208 ELECTRONIC

ACTUATOR PILOT

TYPE D208 ELECTRONIC

TIME CONTROLLER (ETC)

41/

2

(114)

3

1

/2

(89)

137/

8

(352)

153/

4

(400)

17/8
(48)

41/2

(114)

10

(254)

61/2

(165)

3

(76)

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TYPE D208

ACTUATOR PILOT