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72
RLC-SVX07A-EN
Installation - Electrical
2.
Isolated 2-10 VDC Voltage Source Input.
Set DIP Switch SW1-1 of Options Module 1U2 to “OFF”. Connect the voltage
source to terminals TB1-4 (+) and TB1-5 (-) on Options Module IU2. CWS is
now based on the following equation:
CW Setpoint °F = (VDC x 8.125) - 16.25
Sample values for CWS vs. VDC signals are shown in
Table 21
.
3.
Isolated 4-20 mA Current Source Input.
Set DIP Switch SW1-1 of Options Module 1U2 to “ON”. Connect the current
source to terminals TB1-4 (+) and TB1-5 (-). CWS is now based on the
following equation:
Setpoint °F = (mA x 4.0625) - 16.25
Sample values for CWS vs., mA signals are shown in
Table 21
.
NOTE:
The negative terminal TB1-5 is referenced to the UCM chassis
ground. To assure correct operation, 2-10 VDC or 4-20 mA signals must be
Table 21
Input Values Vs. External Chilled Water Setpoint
Inputs
Resulting Chilled
Water Setpoint (F)
Resistance (Ohms)
Current (ma)
Voltage (Vdc)
944330
4.0
2.0
0.0
686092
5.2
2.6
5.0
52946
6.5
3.2
10.0
42434
7.7
3.9
15.0
34889
8.9
4.5
20.0
29212
10.2
5.1
25.0
24785
11.4
5.7
30.0
21236
12.6
6.3
35.0
18327
13.8
6.9
40.0
15900
15.1
7.6
45.0
13844
16.3
8.2
50.0
12080
17.5
8.8
55.0
10549
18.8
9.4
60.0
9050
20.0
10.0
65.0
Minimum setpoint = 0
° F(2.0 VDC input)
Maximum setpoint = 65° F (9.4 VDC input)
Maximum continuous input voltage = 15 VDC
Input impedance (SW1-1 off) = 40.1 Kohms
Minimum setpoint = 0
°F(40mA)
Maximum setpoint = 65° F (18.8 mA)
Maximum continuous input voltage = 30 mA
Input impedance (SW1-1 on) = 499 ohms
Summary of Contents for R Series
Page 17: ...RLC SVX07A EN 17 Installation Mechanical Figure 2 Rigging and Lifting for RTWA Units ...
Page 22: ...22 RLC SVX07A EN Installation Mechanical Figure 7 Rigging and Lifting for RTUA Units ...
Page 25: ...RLC SVX07A EN 25 Installation Mechanical Figure 10 Rigging and Lifting for RTCA Condenser ...
Page 69: ...RLC SVX07A EN 69 Installation Electrical Figure 28 Interconnecting Wiring from RTUA to RTCA ...
Page 129: ...RLC SVX07A EN 129 Start Up Procedures Figure 41 RTWA Unit Sequence of Operation ...
Page 130: ...130 RLC SVX07A EN Start Up Procedures Figure 42 RTUA Unit Sequence of Operation ...
Page 154: ...154 RLC SVX07A EN Diagnostics ...
Page 156: ...156 RLC SVX07A EN 3332 ...
Page 158: ...158 RLC SVX07A EN 3333 ...
Page 160: ...160 RLC SVX07A EN 3334 ...
Page 162: ...162 RLC SVX07A EN 3335 ...
Page 164: ...164 RLC SVX07A EN 3336 ...
Page 166: ...166 RLC SVX07A EN 5119 ...
Page 168: ...168 RLC SVX07A EN 5143 ...
Page 170: ...170 RLC SVX07A EN 5144 ...
Page 172: ...172 RLC SVX07A EN 5145 ...
Page 174: ...174 RLC SVX07A EN 5146 ...
Page 176: ...176 RLC SVX07A EN 6008 ...
Page 178: ...178 RLC SVX07A EN 6009 ...
Page 180: ...180 RLC SVX07A EN 5147 ...
Page 182: ...182 RLC SVX07A EN 6526 ...
Page 184: ...184 RLC SVX07A EN 5150 ...
Page 186: ...186 RLC SVX07A EN 6010 ...