119
Fig. 40 — Flow Switch
a30-5323
Fig. 41 — Tank Baffling
a30-3185
PT
PT
T1
PP
PP
D
D
PT
PT
CHILLED
WATER OUT
HEATER
E
PT
Air Separator with Vent*
Strainer/Suction Guide
Pump
Combination Valve
Isolation Valve*
Pressure Reducing
Fill Valve*
Flexible Connections*
Pressure Relief*
CHILLED
WATER IN
HYDRONIC PUMP PACKAGE
INSIDE
UNIT
OUTSIDE
UNIT
20 Mesh Stainer**
T2
FS
V
D
HEATER
V
D
HEATER
LEGEND
*Field-supplied and installed.
†Factory-installed option.
**Required within 10 ft (3 m) of cooler in addition
to suction strainer for open loop systems.
D — Drain,
3
/
4
-in. NPT
D — Drain,
1
/
4
-in. NPT
E — Expansion Tank Connection,
3
/
4
-in. NPT
FS — Flow Switch
PP — Pipe Plug,
1
/
4
-in. NPT
PT — Pressure/Temperature Tap
T1 — Leaving Water Thermistor
T2 — Entering Water Thermistor
V — Vent,
1
/
4
-in. NPT
Indicates items provided with the
optional hydro
nic pump package.
a30-5296
Fig. 42 — Typical Piping Diagram on 30XA Units with Hydronic Package — Single Pump (Flooded Cooler)