Note: this is a control system which must be cleaned and maintained on a regular basis (see maintenance guide and record MGRG-1000).
2
Guardian Equipment
1440 N North Branch
Chicago, IL 60642
312 447 8100 telephone
312 447 8101 facsimile
gesafety.com
rev. 0114 / © 2014 Guardian Equipment
Installation, Operation and Maintenance Guide
G3600 Series Thermostatic Mixing Valves
1. Remove 68240 handle, MU-13D retaining ring and loosen
6910 set screw, and remove 6820 stop.
2. Turn emergency fixture on.
3. Replace handle on stem and turn stem until desired
maximum temperature is reached.
4. Replace stop so it rests against the web on the LEFT side
of the cover.
5. Set operating temperature, tighten 6910 set screw and
reassemble.
Adjustment And Service
Troubleshooting
Guardian Equipment Thermostatic Water Mixing Valves are
simple in design and may be easily cleaned, adjusted and
repaired. If the installation is accessible, servicing may be
completed without disconnecting the valve.
Note: Thermostatic Water Mixing Valves are REGULATING mechanisms,
which must be regularly maintained to provide best performance.
Frequency of cleaning depends on quality of local water conditions
and usage. (See Maintenance Guide and Record MGRG-1000 and ANSI
Z358.1).
To reset adjustable high temperature limit stop:
SEE PAGE 5 FOR COMPLETE PARTS BREAKDOWN AND PARTS KITS. If installed on a circulated hot water system, make certain the
valve is piped according to Guardian Equipment Required Methods of Piping (see page 3).
WARNING: THIS THERMOSTATIC MIXING VALVE
HAS AN ADJUSTABLE HIGH TEMPERATURE LIMIT
STOP WHICH MUST BE CHECKED. IF TEMPERATURE
IS TOO HIGH, THE INSTALLER MUST RESET
THIS STOP IMMEDIATELY. ALWAYS CHECK THE
TEMPERATURE OF THE MIXED WATER WHEN
THE LEVER HANDLE IS TURNED TO FULL HOT.
EXCESSIVELY HOT WATER IS DANGEROUS AND
MAY CAUSE SCALDING!
THE HIGH TEMPERATURE LIMIT STOP IS FACTORY
SET AT APPROXIMATELY 90°F (32°C) WITH AN
INCOMING HOT WATER SUPPLY TEMPERATURE
OF 140°F (60°C). IF THE INCOMING HOT WATER
ON THE JOB IS HIGHER THAN 140°F, THE VALVE
WHEN TURNED TO FULL HOT WILL DELIVER
WATER IN EXCESS OF 90°F (32°C) AND THE HIGH
TEMPERATURE LIMIT STOP MUST BE RESET BY THE
INSTALLER.
Symptom Component Type Part No. Description
Leak between valve cover and base. Packings and Gaskets 6806 Cover Gasket
Leak at pointer rod. Packings and Gaskets MU-5A O-Ring
Valve outlet temperature cannot be adjusted or
will not mix consistently.
Port Sleeve Assembly TAG-1M or
RK3600A
Port Sleeve Assembly
Rebuild Kit
After cleaning or replacing port sleeve assembly,
valve will not hold temperature.
Thermostat Group 6810 or
RK3600A
Thermostat Group or
Rebuild Kit
Hot water bypass into cold line. Check Stops RK3600B
RK3650B
for G3600
for G3650
Supplies cannot be shut off completely. Check Stops
Leak at checkstop bonnet. Check Stops
HANDLE
68240
