61
Table 8. Provides machine sensors, primary function control or monitor, connection points, and normal operation temperature range
Figure 13
Module
1 Evaporator Leaving Water Temperature 28 - 70 LCWT Control Chiller
Design 44
2 Evaporator Entering Water Temperature 28 - 80 LCWT Control Chiller
Design 54
3 Condenser Leaving Water Temperature 55 - 110 Monitor Chiller
Design 103
4 Absorber Leaving Water Temperature 45 - 100 Monitor Chiller
Design 95
5 Absorber Entering Water Temperature 55 - 110 ELWT-Fdfwd & Chiller
Design 85 Low Tower Limit
6 Solution Temperature Leaving LTG 120 - 200 Concentration Calc Stepper
Design 175 (LTG)
7 Saturated Evaporator Refrigerant Temperature 28 - 60 Evaporator Limit Stepper
Design 38
8 Saturated Condenser Refrigerant Temperature 80 - 180 Concentration Calc Stepper
Design 100 (LTG)
9 Diff Evaporator Water Pressure NA Monitor/control option
10 Diff Tower Water Pressure NA Monitor/control option
11 Interstage Vapor Pressure Transducer 14.9 - 0 PSIG Circuit Limit
12 200 - 320 Concentration Calc Circuit
Design 300 (HTG)
13 Solution Temperature Entering Level Control 120 - 200 Calc Mixed Circuit
(Before Level Control) Design 190 Concentration
14 120 -200 Calc Mixed Circuit
Design 190 Concentration
15 Solution Temperature Entering Absorber 80 - 180 Control T-Margin Stepper
Design 115
16 Solution Temperature Leaving Absorber 80 - 180 Monitor Stepper
Design 100
17 120-20 Monitor Stepper
Design 158
18 Absorber Spray Temperature 80-180 Monitor Stepper
Design 105
19 200-320 Monitor Stepper
Design 270
20 Sense Detect Recovery (SDR) Temperature 200 - 320 SDR Circuit
Design 230 Logic
Sensor
Reference
Usable
Range in °F
Sensor Primary
Function
High and Low
Pressure Limit
Solution Temperature Leaving High Temperature
Generature (HTG)
Mixed Solution Temperature Entering Low
Temperature Heat Exchanger (LTHX) (After Split)
Solution Temperature at Low Temperature Generator
(LTG) Sprays
Solution Temperature Entering High Temperature
Generator (HTG)
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