Install Instructions
REQUIRED METHOD OF PIPING TM VALVES
METHOD #1
Required when hot water is to be circulated to a thermostatic mixing valve, which is a substantial distance from
the hot water source. Recommended Hot Water Inlet Temperature 140ºF (60ºC).
PRIMARY THERMOSTATIC
OUTLET
F
C
INLET
HOT
MIXING VALVE
LEONARD
C
H
THERMOSTATIC
MIXING VALVE
COLD
INLET
REDUNDANT
HOT SUPPLY
COLD SUPPLY
TO HOT WATER SOURCE
SWING CHECK
TM-650, 850, 5125
TM-600, 800, 5100
ADJUSTMENT
SCREW
The TM-650, 850 & 5125 Redundant Thermostatic Mixing
Valve has been factory set at 90°F (32°C). This set point can be
field adjusted with a 3/8” wrench (see diagram). ”Clockwise”
direction will increase temperature. Maximum set point is 100°F
(38°C). Consult medical advisor for correct temperature setting.
As a secondary level of protection, in the event of redundant
valve failure, installing contractor may wish to prevent cold
water contamination by installing a swing check valve on the
cold water supply to the valve (only needed on TM-650, 850,
and 5125).
This unit must be cycled each time the emergency equipment is checked. (See ANSI Z358.1,
Maintenance and Training section).
Cycle redundant thermostatic valve by loosening the
pointer set screw and set the primary thermostatic
mixing valve to full hot. (TM-650, TM-850, TM-5125
only).
Open drench or combination emergency shower and
allow temperature to reach the set point. Temperature
will drop when secondary valve opens to cool output.
Turn primary thermostatic valve to full cold and wait
ten seconds, this will close secondary valve.
Turn primary thermostatic valve to full hot and wait
for ten seconds.
Check to be sure outlet temperature does not climb
above 90°F (32°C) or above recommended maximum
temperature set by medical advisor.
Turn primary thermostatic mixing valve to full cold
and wait ten seconds.
Set primary thermostatic mixing valve to the desired
temperature and close drench or combination
emergency shower.
3
INLET
COLD
HOT
INLET
C
O
L
D
S
U
P
P
L
Y
H
O
T
S
U
P
P
L
Y
T
O
H
O
T
WA
T
E
R
S
O
U
R
C
E
EMERGENCY VALVE
THERMOSTATIC
LEONARD
C
°C
°F
H
OUTLET