Mammoth 800 to 5500 CFM: Dedicated Outdoor Air System with Enthalpy Wheels (VHC) - Manual (Page 43)

MAMM-VHC-IOM-1A (JANUARY 2013) 43
C
B
A
0.62” [16 mm]
2.99”
[76 mm]
1.0”
[25.5 mm]
5.28”
[134 mm]
9.76”
[248 mm]
9.21”
[234 mm]
Figure K4: Outdoor three-way valve actuator (6 to 8 tons)
C
3.46”
[88 mm] 8.5” [216 mm]
3.3”
[84 mm]
B
A
2.49”
[63.4 mm]
1.35”
[35 mm]
Figure K5: Indoor three-way valve actuator (10 to 21 tons)
Table K4: Outdoor Three-way Valve Actuator Technical
and Dimensional Data (6 to 8 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 terminal (for 26–14 GA wire)
Overload protection
Electronic throughout 0° to 95°
rotation
Operating range Y 2–10 VDC, 4–20 mA
Input impedance 600Ω
Angle of rotation 90° adjustable with mechanical stop
Direction of rotation Reversible with switch
Position indication Visual pointer
Manual override External push button
Running time
95 seconds constant independent
of load
Humidity 100% RH
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 type UL Type 4X/NEMA 4X/IP66 & IP67
Housing material Polypropylene
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
Quality standard ISO 9001
† Rated impulse voltage 800V, type of action 1, control population
degree 3.
Table K5: Outdoor Three-way Valve Dimensions
(6 to 8 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 K6: Indoor 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 3 VA (Class 2 power source)
Electrical connection
½” conduit connector 18 GA ple-
num rated cable
_3 ft [1 m] _10 ft [3 m] _16 ft [5 m]
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 90° adjustable with mechanical stop
Torque 180 in-lb [20 Nm]
Direction of rotation Reversible with switch
Position indication Handle
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 NEMA 2/IP54
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)
Quality standard ISO 9001
† Rated impulse voltage 800V, control pollution degree 3, type of action1
(1.B for -S models)
Table K7: Indoor 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]