Figure 11-3
- Evaporative Condenser Diagram
EVAPORATIVE
CONDENSER
PUMP 2
PUMP 1
WATER
SPRAY
FAN
INLET
OUTLET
DAM
PERS
DISCHARGE
PRESSURE
COIL
WATER SUMP
TEMPERATURE
26509038
AMBIENT
TEMP
WATER SUMP
Table 11-3 - Suction Group Inputs
Input
Sensor Type
Wiring
Instructions
Discharge Pressure
500 lb. Eclipse
transducer
see Table 9-1
on page 9-3
Ambient Temp
Temperature
see Table 9-1
on page 9-3
Water Sump Temp
(Evap. only)
Temperature
(Immersion)
see Table 9-1
on page 9-3
Override Temp Sen-
sors (Evap. only)
Temperature
(Pipe-Mount)
see Table 9-1
on page 9-3
Table 11-4 - Suction Group Outputs
Output Device
Wire Output Board
Contacts to:
Set Fail-safe Dip
Switch to:
Notes
Condenser Fan
(Single-Speed)
N.C.
N.C. (up)
To ensure condensing during network and power failure,
condenser fans should all be configured normally closed
(N.C.)
Condenser Fan
Relay (Variable-
Speed)
N.C.
N.C. (up)
The fan should operate at 100% during loss of communi-
cation with E2.
Dampers (Evap.
only)
N.C.
N.C. (up)
Dampers should be open during communication loss
(N.C.).
Evaporator
Pumps (Evap.
only)
N.C. (see note)
N.C. (see note)
Some condensers have dual pumps that cycle at even
intervals. One pump should be wired N.C. and the other
N.O., so that only one pump runs during communication
loss.
Variable-Speed
Fan Output (to
inverter)
None (analog
point)
None (analog
point)
This 4AO or 8IO analog point sends the 0-100% fan
speed signal to the inverter.
Standard Circuits
Software Overview
•
11
-
5
11.3 Standard Circuits
Refrigerated cases that do not use case controllers are
controlled by Standard Circuit applications. In a Standard
Circuit application, the E2 is responsible for all case mon-
itoring and control; it uses the RS485 I/O Network to both
gather case temperature inputs and activate or deactivate
the liquid line solenoids, defrost modes, and fans. Also,
circuits that use ESR8s and MultiFlex ESRs are controlled
using Standard Circuits.
NOTE: Do not set up a Standard Circuit appli-
cation for a case that uses a CC-100 or CCB
case controller. These cases must use Case Cir-
cuit Control applications (see Section 11.4, Case Con-
trol Circuits).
Summary of Contents for E2
Page 2: ......
Page 4: ......
Page 16: ......
Page 24: ......
Page 48: ......
Page 55: ......
Page 56: ......
Page 72: ...6 16 E2 RX BX CX I O Manual 026 1614 Rev 4 5 JAN 2013 ...
Page 75: ...BACnet The RS485 Network and Hardware Setup 6 19 ...
Page 79: ...BACnet The RS485 Network and Hardware Setup 6 23 ...
Page 80: ...6 24 E2 RX BX CX I O Manual 026 1614 Rev 4 5 JAN 2013 ...
Page 81: ......
Page 82: ......
Page 92: ...8 6 E2 RX BX CX I O Manual 026 1614 Rev 4 5 JAN 2013 ...
Page 94: ...8 8 E2 RX BX CX I O Manual 026 1614 Rev 4 5 JAN 2013 ...
Page 114: ......
Page 144: ......
Page 203: ......
Page 204: ......
Page 226: ......
Page 253: ......
Page 254: ......
Page 257: ......
Page 258: ......
Page 267: ......
Page 268: ......
Page 270: ......
Page 282: ......