High Accuracy, Customer Provided; Meter Option - Trane Symbio CVRF Installation Instructions Manual

Installation
Figure 29. Cast – ½ inch NPTI port
Preparation of Wells
Install the provided well using bushings as needed.
Water Box Valve Mounting
Mount transducers on the entering and leaving side water box
locations with the strainer horizontal, the strainer clean out port
pointing down and the transducer facing upwards and connect
to unit control buss. After system is filled, loosen the transducer
in its threaded fitting. Then crack the isolation valve until water
starts dripping from threads. Close the valve and re-tighten the
transducer, and then reopen the valve for use.
26
Figure 30. Standard accuracy flow meter wiring, ref.
50712746
IPC BUS
LINE 269
High Accuracy, Customer Provided 

Meter Option

The high accuracy customer provided 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) (BRD04873) in CVRF control
panel:
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.
+
OPTIONAL
SIG
EVAP ENTERING
Pg
4BP4
WA TER PRESSURE
TRANSDUCER
-
+
OPTIONAL
SIG
EVAP LEAVING
Pg
4BP5
WA TER PRESSURE
TRANSDUCER
-
+
OPTIONAL
SIG
COND ENTERING
Pg
4BP6
WA TER PRESSURE
TRANSDUCER
-
+
OPTIONAL
SIG
COND LEA VING
Pg
4BP7
WA TER PRESSURE
TRANSDUCER
-
CVRF-SVN005C-EN