Owner's manual

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.