Symmons Showeroff 4-420 Installation And Service

Automatic Shower limiting
Installation and Service

Timing Instructions:

1 ) Loosen Allen set screw (NS-28) on side of knob (NS-3).
2 ) Pop-out plug-button (NS-29) with sharp pointed tool.
3 ) Insert thin blade screw driver in center hole of knob
(NS-3) and into the slot of the push-rod (NS-4).
4 ) Turn knob (NS-3) clockwise while holding screw driver
plug-button (NS-29)
5 ) Tighten Allen set screw (NS-28). To increase time cycle,
turn knob (NS-3) counter-clockwise in step 4.
Parts Assembly
NOTE: (1) 4-420 valve shown with 1/ 2" sweat connections
include the Symmons Showero valve shown above
Showe roff Shower Limiting Valve, 4-420
®
V alve

Service:

NS-13R -
Washer & Gasket Repair Kit
unit, control rod sleeve, sleeve, retainer and all necessary
washers and gaskets.
NS-1
- Complete Replacement Unit,
complete working unit of the valve assembled and tested)
before turning on the water supply,
New installations,
line. Replace cartridge and turn on supply. If supply is not
- If the valve has a long idle period
Long idle periods
between installation and use, or is used seasonally, disassemble
the cartridge unit and lightly lubricate all moving parts.
NS-32 STOP RE TAINE R
NS-22 ESCUTCHEON SCREWS (2 REQ)
NS-28 KNOB SET SCREW
NS-29 KNOB PLUG BUTTON
NS-3 KNOB
4-420-TRM ESCUTCHEON (4-420, 4-427, 4-428)
NS-2 CAP
NS-4 PUSH ROD WITH SNAP RING
NS-5 GUIDE NUT
NS-25 GUIDE NUT LARGE O-RING
NS-27 CAP LARGE O-RING
NS-24 GUIDE NUT SMALL O-RING
NS-14 GUIDE NUT WASHER
NS-26 CAP SMALL O-RING
L-25-NSF O-Ring
NS-7 RE TAINER
NS-9 WASHER SCREW
NS-11 SHU T-OFF WASHER
NS-15 PISTON O-RING
NS-8 PISTON
NS-13 PISTON SPRING
NS-16 CONTROL ROD
NS-6 CYLINDER
NS-18 INTEGRAL STOP UNIT
PS-4A ESCUTCHEON (4-427R & 4-428R)
PS-4E THREADED ROD (4-427R & 4-428R)
PS-4H HORSESHOE BRACKET (4-427R & 4-428R)
For California Residents
WARNING:
chemicals known to the State of
California to cause cancer, birth
defects, or other reproductive harm.
includes piston
,
includes the