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Note: This is a control system which must be cleaned and maintained regularly (see Maintenance Guide and Record card included with valve shipment).

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Guardian Equipment 
1140 N North Branch St 
Chicago, IL 60642

312 447 8100 

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312 447 8101 

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gesafety.com

rev. 1215 / © 2015  Guardian Equipment

Installation, Operation and Maintenance Guide

G3600LF Series Thermostatic Mixing Valves

To Dismantle Valve:

Turn off hot and cold water supplies to valve. Remove four 

cover screws and remove cover and thermostat group. (Figure 

1) After replacing parts, lockable dial must be reset to obtain 

correct temperature range from Cold to Hot. (see "To Reset 

Adjustable High Temperature Limit Stop" on page 2).

To Clean Port Sleeve Assembly:

Remove base stud (Figure 2). Twist port sleeve nut into valve 

body, slide port sleeve assembly toward port sleeve nut, and 

lift from valve body to clean. Clean with non-corrosive agent 

and soft cloth. DO NOT USE ABRASIVES. Wash parts thoroughly 

after cleaning and reassemble. Reinstall port sleeve assembly 

with long slot end nearest port sleeve nut. Tighten port sleeve 

nut to complete reassembly. DO NOT OVERTIGHTEN.

To Clean Thermostat Group:

Loosen set screw and remove handle (Figure 1). Remove 

retaining ring and stop. Push rod through cover to remove 

thermostat group. DO NOT PULL COILS OUT OF SHAPE. Use 

brush and cleaning solution (non-corrosive and grit-free) 

to remove any depost build-up from thermostat coil. Wash 

thoroughly before reassembly.

Reassemble by reinstalling base stud, then place thermostat 

group 6810 on base stud. PORT SLEEVE ASSEMBLY DRIVING 

BALL MUST BE INSERTED INTO HOLE ON LOWER COIL 

BRACKET(Figure 3). Verify thermostat moves back and forth. 

Replace cover and screws and turn hot and cold water supplies 

on. See page 2 "To Reset Adjustable High Temperature Limit 

Stop."

Note: After installation, adjustment, and cleaning, always verify 

valve temperature with thermometer when turned to full hot. If 

necessary, adjust temperature of hot water source. 

EXCESSIVE 

HOT WATER TEMPERATURE (OVER 90°F) IS DANGEROUS AND 

MAY CAUSE SCALDING.

Figure 1

Figure 2

Figure 3

Base Stud

Long Slots

Port Sleeve Nut

Port Sleeve Nut

Port Sleeve Assembly

Port Sleeve Assembly

Driving Ball

Coil Bracket

Cover 

Screws

Base Stud

Handle

Stop

Thermostat 

Group

Summary of Contents for G3600LF Series

Page 1: ...eaned adjusted or repaired 2 Inlets are clearly marked on valve body casting Connect hot water to inlet marked HOT and cold water to inlet marked COLD 3 Included angle checkstops must be installed on both supply lines see above 4 Use solder or pipe cement sparingly Flush supply pipes before connecting valve Flush outlet pipe and valve once valve is connected Maximum operating pressure is 125 PSI 8...

Page 2: ... 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 ...

Page 3: ...e that is a substantial distance from the hot water source Recommended hot water inlet temperature is 135 F 57 C This unit must be cycled each time the emergency equipment is inspected See ANSI Z358 1 Maintenance and Training section 1 Set the thermostatic mixing valve to full hot 2 Activate eye or eye face wash and verify outlet temperature does not exceed 90 F 32 C 3 Turn thermostatic valve to f...

Page 4: ... long slot end nearest port sleeve nut Tighten port sleeve nut to complete reassembly DO NOT OVERTIGHTEN To Clean Thermostat Group Loosen set screw and remove handle Figure 1 Remove retaining ring and stop Push rod through cover to remove thermostat group DO NOT PULL COILS OUT OF SHAPE Use brush and cleaning solution non corrosive and grit free to remove any depost build up from thermostat coil Wa...

Page 5: ... high temperature limit stop must be reset see page 2 2 G3600LF valves are furnished with lockable dials Includes parts to repair both hot and cold checkstops Set Screw Thermostatic Mixing Valve Parts Item Part Number Description 1 TA 5 Base Stud 2 MU 2C Cover Screw 3 6810 Thermostat Group 4 6820 Stop 5 68240 Handle 6 MU 5A Stem O Ring 7 3009 Cover O Ring 8 TAG 1M Port Sleeve Assembly Item Part Nu...

Page 6: ...d determined by the manufacturer to be defective in materials or workmanship There are no warranties expressed or implied which extend beyond verbiage contained herein There are no implied warranties of merchantability or fitness for a particular purpose Guardian Equipment will not be held liable for labor incidental or consequential damages Any alteration or improper installation or improper use ...

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