Honeywell C7400 Manual page 10

SOLID STATE ECONOMIZER SYSTEM
IMPORTANT
Failure to follow these wiring practices can introduce
electrical interference (noise) that can cause erratic
system operation:
a. Keep wiring at least one foot away from large induc-
tive loads such as motors, line starters, lighting bal-
lasts, and large power distribution panels.
b. Shielded cable is required in installations where
these guidelines cannot be met.
c. Ground shield only to grounded controller case.
d. Make good physical wiring connections to ensure
good electrical connections.
e. Make sure that building earth ground connections
are not intermittent or missing.
f. Mount sensor only in recommended environment.
MS7503 and MS7505 Damper
Actuators
Location and Mounting
LOCATION
Locate the actuator as close as possible to the equipment to
be controlled. Refer to Fig. 12 for mounting dimensions.
Wiring
Disconnect power supply before connecting wiring to prevent
electrical shock or equipment damage. All wiring must comply
with applicable local codes and ordinances.
3-55/64 (98)
1-9/16 1-15/16
(40) (49)
2-1/64
(55)
Fig. 12. MS7503 and MS7505 Dimensions Diagram.
Dimensions, Approximate 6.95 in. high x 3.86 in. wide x
3.16 in. deep (177 mm high x 98 mm wide x 80 mm deep)
Fail Safe Mode Spring Return
Electrical Connections Field wiring 18 AWG (0.5 mm) to 14
AWG (1.5 mm) conductors (stranded or solid) and up to 2 -
14 AWG (1.5 mm) conductors (stranded) to screw termi-
nals, located under the removable access cover.
63-2484—03
3-5/32 (80)
47/64
2-27/64 (61)
(19)
1-1/8
(29)
1-1/16
(27)
4-9/16
(116)
6-61/64
(177)
4-9/16
(116)
M27712
Frequency 50/60 Hz
Spring Return Direction By orientation. Actuator can be
flipped.
Rotational Stroke 95 ±3 degrees
Rotational Stroke Adjustment Mechanically limited 5
degree increments
Shaft Adapter Type Self-centering clamping
Compatible Damper Shafts 3/8 to 5/8 inch (9 to 16 mm)
round or 1/4 to 1/2 square (6 to 13 mm)
Mounting Direct Coupled
Auxiliary Switches Available One internal optional
Rated Torque MS7503 27 lb-in. (3 Nm) and MS7505
44 lb-in. (5 Nm)
Maximum Stall Torque MS7503 44 lb-in (5 Nm) and MS7505
75 lb-in. (8.5 Nm)
Spring Return Torque MS7503 27 lb-in. (3 Nm) and MS7505
44 lb-in. (5 Nm)
Maximum Noise Rating, Spring Return (dBA @ 1m) <60 dB
Maximum Noise Rating, Driving (dBA @ 1m) <40 dB
Environmental Rating NEMA2; IP54, Flame Resistance
UL94-5VA
Ambient Temperature Range 22°F to +3°F (3°C to +55°C)
Storage Temperature Range -40°F to +150°F (-40°C to
+65°C)
Operating Humidity Range (% RH) 5 to 95% RH,
noncondensing
Materials Plenum rated plastic housing and access cover
Weight 3.5 lb (1.60 kg)
Approvals: EN60730-1; Low voltage directive 73/23/EEC
CE:
Underwriters Laboratories, Inc. UL60730-1, UL1097 for
Double Insulation
Includes Mounting Bracket, Self-Centering Shaft Adapter
T6031H THERMOSTAT
Location and Mounting
The T6031H Thermostat mounts either vertically or
horizontally on a wall or panel. Locate the remote bulb as far
from the controller as capillary tubing allows.
Mounting Sensing Elements
T6031H: Install the bulb in the return airflow where air of
average temperature can circulate around it.
IMPORTANT
Do not overtighten clamps to the point of distorting
the sensor bulb because overtightening causes a
significant shift in bulb calibration.
Mounting Thermostat
Mount the thermostat using the back mounting plate as shown
in Fig. 5.
Wiring
CAUTION
Can Cause Electrical Shock or Equipment
Damage.
Disconnect power supply before connecting wiring.
10