Trane Symbio 800 Installation Instructions Manual page 19

Figure 27. Schematic of flow meter option
IPC BUS
High Accuracy, Customer Meter Option
The high accuracy customer meter option provides an
analog input/output LLID to monitor a customer provided
high accuracy meter 0-10 Vdc or 4 – 20 mA outputs.
(Rosemont, etc.) This option allows monitoring of
condenser, evaporator flow and auxiliary heat
exchangers.
Install needed DAIO LLID(s) (
panel
Figure 28. Schematic of high accuracy meter option
CDUB-SVN002B-EN
CUSTOMER PROVIDE 4-20MA INPUT
OPTIONAL
1A21 DUAL ANALOG I/O
5B2 CUSTOMER PROVIDE
EVAP/COND WATER FLOW METER
COND FLOW METER
GND 6
SIGNAL
METER
OUTPUT
4-20mA
INPUT 2 5
OUTPUT 2 4
J2
GND 3
SIGNAL
METER
OUTPUT
4-20mA
INPUT 1 2
OUTPUT 1 1
5B1 CUSTOMER PROVIDE
EVAP FLOW METER
J11
4 1
4 1
J1
+
SIG
Pg
4B1
-
+
SIG
Pg
4B2
-
BRD04875
) in CVRF control
DIFFERENT PRESSURE INPUT
OPTIONAL
1A21 DUAL ANALOG I/O
24VDC
1A2 J3-1
FLOW
0V
1A2 J3-2 GND 6
INPUT 2 5
24VDC
1A1 J3-1
OUTPUT 2 4
FLOW
J2
0V
1A1 J3-2 GND 3
INPUT 1 2
OUTPUT 1 1
IPC BUS
OPTIONAL
SIG
EVAP ENTERING
WATER PRESSURE
TRANSDUCER
OPTIONAL
SIG
EVAP LEAVING
WATER PRESSURE
TRANSDUCER
1. LLID (1A21) is needed for EVAP and COND water flow.
Connect flow meter wires to 1A21-J2-1 and 1A21-J2-1
for EVAP, 1A21-J2-4 and 1A21-J2-5 for COND.
2. LLID (1A28) is need for HR Aux/COND water flow.
Connect flow meter wires 1A28-J2-1 and 1A28-J2-1 for
HR flow or Aux COND.
High accuracy, customer meter flow meter wiring, ref.
50712795, 50712799, 50712802, 50712805 or 50712806
depend on different unit. For details, see
4B2 COND WATER
DIFFERENT PRESSURE
PRESSURE
GRN
TRANSDUCER
4-20mA
BRN
PRESSURE
GRN
TRANSDUCER
4-20mA
BRN
4B1 EVAP WATER
DIFFERENT PRESSURE
+
OPTIONAL
COND ENTERING
Pg
4B3
WATER PRESSURE
TRANSDUCER
-
+
OPTIONAL
COND LEAVING
Pg
4B4
WATER PRESSURE
TRANSDUCER
-
EVAP/COND FLOW METER
2
AND WATER FLOW DETECTION
Installation
Table 3, p. 27.
19