Mammoth 800 to 5500 CFM: Dedicated Outdoor Air System with Enthalpy Wheels (VHC) - Manual (Page 42)

MAMM-VHC-IOM-1A (JANUARY 2013) 42
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 K2: Outdoor three-way valve actuator (2 to 5 tons)
Table K6: Outdoor Three-way Valve Actuator Technical
and Dimensional Data (2 to 5 tons)
Control 2–10 VDC, 4–20 mA
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
Input impedance 100 kΩ [0.1 mA], 500Ω
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 and
IP67
Housing material Polypropylene
Agency listings
cULus acc. to UL 60730-1A/- 2-14,
CAN/CSA E60730-1, CSA C22.2
No. 24-93, CE acc. to 89/336/EEC
Quality standard ISO 9001
C
2.6”
[66 mm]
2.34”
[59.4 mm]
7.97” [200 mm]
A
B
1.69”
[42 mm]
3.22”
[82 mm]
Figure K3: Indoor three-way valve actuator (6 to 8 tons)
Table K1: Outdoor Three-way Valve Dimensions (2 to 5 tons)
Value Nominal Size Dimensions (Inches [mm])
Inches DN [mm] A B C
½” 15 mm 2.41” [61.1] 1.39” [35.2] 1.20” [30.6]
½” 15 mm 2.38” [60.4] 1.72” [43.7] 1.26” [32.1]
¾” 20 mm 2.73” [69.3] 1.81” [45.9] 1.45” [36.8]
1” 25 mm 3.09” [78.4] 1.81” [45.9] 1.56” [39.8]
Table K2: Indoor 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
1.5 W 0.4 W
Transformer sizing 3 VA (Class 2 power source)
Electrical connection
½” conduit connector 18 GA, ple-
num rated cable 3 feet [1 m]
_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
Direction of rotation Reversible with protected switch
Position of indication Handle
Manual override External push button
Running time Constant independent of load
LRB24-SR 95 seconds
LRX24-SR
_150 sec. _95 sec. _60 sec.
_45 sec. _35 sec.
Humidity
5% to 95% RH non-condensing (EN
60760-1)
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 9/336/EEC
Noise level <35 db (A)
Quality standard ISO 9001
Electrical connection
Screw terminal (for 26–14 GA wire)
protected (NEMA 2/IP20)
Table K3: Indoor Three-way Valve Dimensions (6 to 8 tons)
Value Nominal Size Dimensions (Inches [mm])
Inches DN [mm] A B C
½” 15 mm 2.41” [61.1] 1.39” [35.2] 1.20” [30.6]
½” 15 mm 2.38” [60.4] 1.72” [43.7] 1.26” [32.1]
¾” 20 mm 2.73” [69.3] 1.81” [45.9] 1.45” [36.8]
1” 25 mm 3.09” [78.4] 1.81” [45.9] 1.56” [39.8]