16
Fig. 18 — Typical Mixing Box Actuator Mounting
*Actuator is spring-return type.
NOTES:
1. All actuators are direct coupled type, designed to be directly
mounted into jackshaft assembly.
2. All actuators are equipped with a plenum rated cable, factory-
terminated to the actuator. Part No. HF27BB035 and 034 are 16 ft,
HF27BB033 is 9.5 ft.
3. Damper areas are nominal and based on low leakage type
dampers.
4. For larger damper assemblies, multiple activators may be used.
5. Part No. HF27BB033 and 034 are designed for inlet guide vane
and face and bypass applications, but may be used for external
relief dampers if spring return is not required.
Table 4 — Recommended Actuators
ACCESSORY
PACKAGE
NO.
ACTUATOR
PART NO.
VOLTAGE
(50/60 Hz)
VA
ROUND
SHAFT
SIZE
MIN-MAX
(in.)
TIMING
(sec)
DAMPER AREA
(sq ft)
TORQUE
(in.-lb)
MAXIMUM
STROKE
(degrees)
MAXIMUM
WIRE
LENGTH
(ft)
Parallel
Opposed
33AMACTDMP133
HF27BJ035*
24
10
0.750-1.050
150
44
53
133
90
300
33AMACTGV-133
HF27BJ033
24
4
0.375-0.625
< 150
N/A
N/A
133
90
725
33AMACTGV-266
HF27BJ034
24
6
0.475-0.750
135
N/A
N/A
266
90
450