DS05C,D,G
62-3041—4
4
INSTALLATION
When Installing this Product...
1.
Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition
2.
Check the ratings given in these instructions and on the
product to make sure the product is suitable for your
application.
3.
Installer must be a trained, experienced service
technician.
4.
After installation is complete, check out the product
operation as provided in the instructions.
Procedure
1.
Flush the system clear of sediment or debris.
2.
Close the supply valve and downstream isolating valve
(if one is installed).
3.
Install the DS05 with the arrow on the body pointing in
the direction of water flow. (The DS05 can be mounted in
any position.)
The DS05 can be installed directly onto the pipe by using the
female NPT threads on each end. If space limitations restrict
turning the DS05, install single-unions or double-unions.
NOTE: Heat from soldering can damage internal parts of the
DS05. Always solder the tailpieces separately from
the DS05.
4.
Open the supply valve slowly and check for leakage and
proper operation of the DS05.
Changing the Downstream Pressure
(See Fig. 2)
Remove the dust cap from the DS05. The DS05 is factory set
to 60 psi.
To adjust the outlet pressure to a desired setting:
1.
Loosen the locking screw by turning one turn counter-
clockwise
(do not remove this screw).
2.
Turn the adjusting knob counter-clockwise
to reduce pressure or clockwise
to increase
pressure.
3.
Lock the setting by turning the locking screw
clockwise
.
4.
Replace the dust cap over the dial.
MAINTENANCE
Replacing the Cartridge (See Fig. 3)
The working parts of the DS05 including diaphragm, valve
seat, strainer and disk are all contained in a replaceable
cartridge. To replace the cartridge:
1.
Shut off the supply valve and open a downstream faucet
to relieve the system pressure.
2.
Loosen the setpoint screw by turning it counter-
clockwise
(Do not remove this screw).
Fig. 2. Changing outlet pressure.
CAUTION
To prevent injury and/or equipment damage,
loosen locking screw and turn adjusting knob
counter-clockwise
to remove spring tension.
3.
Turn adjusting knob counter-clockwise
to remove
spring tension.
4.
Remove the bonnet and washer using an MT06A
Service Tool.
5.
Remove the cartridge using two screwdrivers as levers.
Attach new O-rings and screen onto the new cartridge.
6.
Make sure O-rings are properly installed above and
below the screen.
7.
Insert the new cartridges. Do not scratch the sides.
8.
Place the washer on top of the cartridge.
NOTE: The inner lip must be pointing up to avoid damaging
the diaphragm.
9.
Replace the spring and bonnet.
10.
Readjust the outlet pressure to the desired setting by
using the procedure described in Changing the
Downstream Pressure section.
60
60
LOOSEN LOCKING
SCREW ONE TURN
ADJUST SETPOINT AT THE DESIRED VALUE BY ACTUATING SELECTOR.
INLET PRESSURE (MAXIMUM): 400 PSI
REDUCED PRESSURE RANGE:
15 TO 75 PSI 1/2 IN. –1 IN. SIZE
15 TO 130 PSI 1 1/4 IN. SIZE
NOTE: DO NOT DISMANTLE KNOB
SET-POINT READOUT HAS BEEN CALIBRATED
IN THE FACTORY AND SET AT 60 PSI.
DISMANTLING THE SELECTOR KNOB WILL
CANCEL THIS CALIBRATION. RECALIBRATE
USING A PRESSURE GAUGE. SEE RECALIBRATION.
M7315C