Carrier 39S handleiding
Handleiding
Je bekijkt pagina 39 van 64
39
Fig. 52 — Dripping Steam Supply to
Condensate Return
Fig. 53 — Multiple Coil High Pressure Piping
Fig. 54 — Multiple Coil Low Pressure
Piping Gravity Return
Fig. 55 — Condensate Lift to Overhead Return
Gate
Valve
Steam
Supply
To Unit
Dirt Leg
Globe Valve
(Plug Type)
Drip
Line
Condensate
Return
From Unit
Gate Valve
Condensate
Return Main
Open air relief to
Atmosphere close
To unit. Required on
Low pressure gravity
Return systems
Steam Supply Main
Gate Valve
Float And Thermostatic
Trap
NOTES:
1. A bypass is necessary around trap and valves when continuous
operation is necessary.
2. Bypass to be the same size as trap orifice but never less than
1/2 in.
*
*Refer to Fig. 52 when dripping steam supply main to condensate
supply.
NOTES:
1. Flange or union is located to facilitate coil removal.
2. When a bypass with control is required.
3. Flash trap can be used if pressure differential between supply
and condensate return exceeds 5 psi.
4. Coils with different pressure drops require individual traps. This
is often caused by varying air velocities across the coil b
ank.
5. Dirt leg may be replaced with a strainer. If so, tee on drop can
be replaced by a reducing ell.
6. The petcock is not necessary with a bucket trap or any trap
which has provision for passing air. The great majority of high
pressure return mains terminate in hot wells or de-aerators
which vent the air.
*
*Refer to Fig. 52 when dripping supply to return.
NOTES:
1. Flange or union is located to facilitate coil removal.
2. When control valve is omitted on multiple coils in parallel air
flow.
3. When a bypass with control is required.
4. Coils with different pressure drops require individual traps. This
is often caused by varying air velocities across the coil bank.
NOTES:
1. Flange or union is located to facilita
te coil removal.
2. To prevent water hammer, drain coil before admitting steam.
3. Do not exceed one foot of lift between trap discharge and return
main for each pound of pressure differential.
4. Do not use this arrangement for units handling outside air.
Note 1
Gate Valve
Unit
Steam Supply
Main
Overhead
Condensate
Return Main
Gate Valve
Check Valve
Bucket Trap
(Located Below
Coil Outlet)
Note 1
12"
Min.
Drain Valve
(Gate, Note 2)
Bekijk gratis de handleiding van Carrier 39S, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Carrier |
| Model | 39S |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 10967 MB |
