Thrush DSHE Series - Manual (Page 17)

Thrush Co.
Manual #9636-0555
4.2 Installation (Continued)
TEMP SENSOR
PROBE
Y‐STRAINER
STEAM INLET
CONTROL PILOT
STEAM CONTROL
VALVE)
STEAM TRAP
(PIPED TO ADEQUATE DRAIN)
Y‐STRAINER
GATE VALVE
DIRT LEG
COLD WATER
INLET
HOT WATER
OUTLET
SAFETY RELIEF VALVE
(PIPED TO ADEQUATE DRAIN)
REDUCER SPOOL
(IF REQUIRED)
Figure 4-3 Piping Installation
1. Connect the cold water source to the water side connection port. Be sure the
upstream manual shutoff valve is in the closed position. If an in-line check valve
or back flow preventer is used, a suitable expansion tank must be installed in the
hot water outlet side of the unit. (Figure 4-3)
2. Connect the hot water outlet piping to the hot water outlet port. Be sure the
downstream manual shutoff valve is in the closed position. (Figure 4-3)
3. Connect the steam piping to the steam inlet port (Figure 4-3).
Any temperature control valve installed on the Hot-Pak should be of the
fail-closed design.
The temperature control valve should be installed per the valve manufacturer’s
instructions. A 1 ¼” NPT connection for the temperature sensing element is
located beneath the relief valve connection.