Mammoth 800 to 5500 CFM: Dedicated Outdoor Air System with Enthalpy Wheels (VHC) - Manual (Page 44)

MAMM-VHC-IOM-1A (JANUARY 2013) 44
10.66”
1.52”
9.56”
1.10”
2.01”
5.28”
0.21”
5.52”
5.15” 4.41”
AM..N4 9/10”...3/4” 3/8”...9/10” 9/10”...3/4”
4.88”
Figure K6: Outdoor three-way valve actuator (10 to 21 tons)
C
B
A
Figure K7: Actuator
Table K8: Outdoor Three-way Valve Actuator Technical
and Dimensional Data (10 to 21 tons)
Power supply
24 VAC ± 20% 50/60 Hz
24 VDC ± 10%
Power consumption
Running Holding
2.5 W 0.4 W
Transformer sizing 5 VA (Class 2 power source)
Electrical connection
Screw termianl (for 26–14 GA wire)
½” conduit connector
Overload protection
Electronic throughout 0° to 95°
rotation
Operating range Y 2–10 VDC, 4–20 mA
Feedback output U 1–10 VDC, max. 0.5 mA
Input impedance 100Ω [0.1 mA], 500Ω
Angle of rotation
Max 95° adjustable with mechani-
cal stop
Torque 160 in-lb [16 Nm]
Direction of rotation Reversible with switch
Position indication Pointer
Manual override External push button
Running time
95 seconds constant independent
of load
Humidity
5% to 95% RH non-condensing
(EN 60730-1)
Ambient temperature −22°F to 122°F [−30°C to 50°C]
Storage temperature −40°F to 176°F [−40°C to 80°C]
Housing IP66/67 UL Type 4X, NEMA 4X
Housing material UL94-5VA
Agency listings†
cULus acc. to UL60730-1A/-2-
14,CAN/CSA E60730-1, CSA C22.2
No. 24-93, CE acc. to 89/336/EEC
Noise level <45 db (A)
Servicing Maintenance free
Quality standard ISO 9001
Weight 3.3 lbs [1.5 kg]
† Rated impulse voltage 800V, type of action 1, control pollution degree 3
Table K9: Outdoor Three-way Valve Dimensions
(10 to 21 tons)
Value Nominal Size Dimensions (Inches [mm])
Inches DN [mm] A B C
1¼” 32 mm 3.96” [100.6] 2.21” [56.2] 2.14” [54.3]
1½” 40 mm 4.39” [111.6] 2.45” [62.2] 2.33” [59.1]
2” 50 mm 4.90” [124.5] 2.68” [68.0] 2.60” [66.0]
Table K10: Actuator Specifications
Torque 162 in-lbs [18 Nm]
Angle of rotation
95° (adjustable with mechanical
stops)
Fits shaft diameter 9/16”...3/4”
Manual override External push button
Direction of rotation External switch
Dimensions
10.66” x 5.28” x 4.88”
[271 x 134 x 124 mm]
Electrical connection Terminal strip
Overload connection Electronic throughout rotation
Auxiliary switch(es)
Add on: 1 or 2 SPDT, 3A (0.5A
inductive) at 250V one switch
adjustable 25° to 85°
Housing specifications NEMA 4/4X, IP66/IP67
Agency listings
cULus according to UL 30730-
1A/- 2-14, CAN/CSA E60730-
1:02, CE according to 2004/108/
EC and 2006/95/EC
Control shaft length
Minimum ¾”
Maximum 2¼”