Table of Contents
Advertisement
Installation
Figure 31. Steam coil piping (20 to 36 ton)
Type NS
Steam Coil
(ARI Listed)
Figure 32. Steam coil piping (40 to 130 ton)
Use same size pipe
as Trap Connections
(3 locations)
Return Main
Steam Trap
(Float & Thermostatic Type)
(3 locations)
Disconnect Switch with External
Handle
Units ordered with a factory mounted disconnect switch
comes equipped with an externally mounted handle. This
allows the operator to disconnect power from the unit
without having to open the control panel door. The handle
has three positions:
48
Air Vent
INLET
OUTLET
2-Way
Modulating
Valve
Vacuum Breaker
(2 locations)
IN
(2 locations)
OUT
(2 locations)
12" Minimum
(both outlets)
2-Way Modulating Valve
(Field Installed)
Steam Trap
Strainer
(Float and Thermostatic Type)
Steam Main
Gas Valve
(3 locations)
Use same size pipe
as Steam Main
Strainer
(3 locations)
Use same size pipe
as Coil Connection
(2 locations)
•
"ON" - Indicates that the disconnect switch is closed,
allowing the main power supply to be applied at the
unit.
•
"OFF" - Indicates that the disconnect switch is open,
interrupting the main power supply to the unit controls.
•
"RESET/LOCK" - Turning the handle to this position
resets or disconnects the device. To disconnect, the
handle must be turned to the Reset/Lock position.
Pulling the spring-loaded thumb key out, so the lock
shackle can be placed between the handle and the
Strainer
Supply
Steam
Gate Valve
Return
RT-SVX072D-EN
Advertisement
Table of Contents
