Technical Specifications; Valves - Carrier Atmosphera 42EM Series Manual

7 - TECHNICAL SPECIFICATIONS

7.1 - Valves

It should be noted that the valve body is the same for whatever
controller option is chosen.
7.1.1 - Electrothermal actuator (on/off)
This ON/OFF type 230 V a.c. actuator is used with Carrier
numeric controllers and Carrier electronic room thermostats.
7.1.1.1 - Features
• Compact design, small size
• Long service life
• Easy installation, without tools
• Completely silent operation
• Connection cable included
7.1.1.2 - Operation
Linear movement is provided by the expansion and
contraction of a wax element heated by an electrical resistor.
7.1.1.3 - Specifications
Power supply
Activating current
Holding current
Power
Maximum travel
Operating temperature
Degree of protection
Opening time
Closing time
Connecting cable
Dimensions
Permitted differential pressure
• 2-way valve (Kvs = 1 or 2.5)
• 3-way valve (Kvs = 1)
Logic
7.1.2 - Two-way valve body
6,5 Travel
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24 V a.c. actuator
230 V a.c. (±15%)
1 ph - 50 Hz
0.7 A
0.013 A
3 W
8 mm
0 to 50°C
IP43 if installed vertically
IP40 if installed horizontally
4 min.
Maximum 7 max.
depending on actuator
heating-up time
(ambient temp. 20°C)
1 m, 2 x 1 mm 2
Diameter 50 mm
Height 75 mm
2.5 bar
1.5 bar
NF valve, closed if no voltage
M30,0x1,5
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7.1.2.1 - Features of the 1/2" two-way valve
• 1/2" male BSP connection for union nuts
• Straight valve body in bronze with arrow indicating
direction of flow embossed on valve body.
• Stainless steel stem
• Brass valve
• Nominal size 15
• Kvs value: 1
• Fluid: water and glycol solution (max. 40% glycol)
• Temperature: 2-90°C
• Leak rate: 0.02% of Kvs
• Travel: 6.5 mm
• Closing height: 18 mm
• Flow curve: linear
• Nominal pressure: PN 16 bar
7.1.2.2 - Water pressure drop
Refer to chapter 9.4 'Water valve pressure drops'.
7.1.3 - Three-way valve body (with integral bypass)
7.1.3.1 - Features of the 1/2" three-way valve
• 1/2" male BSP connection for union nuts
• Straight valve body in bronze with arrow indicating
direction of flow embossed on valve body.
• Stainless steel stem
• Brass valve
• Nominal size 15
• Kvs value: flow A-AB = 1, bypass B-AB = 0.63
• Fluid: water and glycol solution (max. 40% glycol)
• Temperature: 2-90°C
• Leak rate: 0.02% of Kvs
• Travel: 6.5 mm
• Closing height: 18 mm
• Flow curve: equal percentage A-AB, linear for bypass B-
AB
• Nominal pressure: PN 16 bar
7.1.3.2 - Water pressure drop
Refer to chapter 9.4 'Water valve pressure drops'.
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