Note: This is a control system which must be cleaned and maintained regularly (see Maintenance Guide and Record card included with valve shipment).
2
Guardian Equipment
1140 N North Branch St
Chicago, IL 60642
312 447 8100
telephone
312 447 8101
facsimile
gesafety.com
rev. 1215 / © 2015 Guardian Equipment
Installation, Operation and Maintenance Guide
G3600LF Series Thermostatic Mixing Valves
Adjustment and Service
Guardian Equipment thermostatic mixing valves may be easily
cleaned, adjusted and repaired. Servicing may be possible
without disconnecting valve.
Note: Thermostatic water mixing valves are regulating mechanisms which
must be regularly maintained to provide best performance. Local water quality
and usage conditions dictate cleaning frequency. (See Maintenance Guide and
Record card included with valve shipment and reference ANSI Z358.1)
1. Remove handle, retaining ring, loosen set screw, and remove stop.
2. Activate emergency fixture.
3. Replace handle and adjust to reach desired maximum temperature.
Note: Temperatures above 90°F are not recommended. Consult a
medical advisor for correct temperature settings.
4. Replace stop such that it rests against the web on the left side of the
cover.
5. Tighten set screw and reassemble. Hold a thermometer under water
flow to verify maximum temperature has been set appropriately.
Then set desired operating temperature.
Troubleshooting
To Reset Adjustable High Temperature Limit Stop:
If installed on a circulated hot water system, verify the valve is piped according to Required Piping Method on page 3.
See page 5 for complete parts breakdown and parts kits.
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. EXCESSIVE
HOT WATER TEMPERATURE 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
135°F (57°C). IF THE INCOMING HOT
WATER TEMPERATURE IS HIGHER
THAN 135°F (57°C), 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.
Symptom
Component Type
Part No.
Description
Leak between valve cover and body.
Packings and Gaskets
6806
Cover Gasket
Leak at lockable dial.
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 or
Repair Kit
After cleaning or replacing port sleeve assembly, valve
will not hold temperature.
Thermostat Group
6810 or
RK3600A
Thermostat Group or
Repair Kit
Hot water bypass into cold line.
Checkstops
RK3600B
Checkstop Kit
Supplies cannot be shut off completely.
Checkstops
Leak at checkstop bonnet.
Checkstops
Handle
Set Screw
Stop
Retaining Ring
Web
