Guardian G3600 Series, G3600, G3650 Installation, Operation And Maintenance Manual

Installation, Operation and Maintenance Guide

G3600 Series Thermostatic Mixing Valves

Note: Please provide valve serial number (stamped on cover of valve) when ordering parts.

Hot Water

Inlet

Thermometer

Cold Water

Inlet

Angle
Checkstops

1/2" Copper
Tube Inlets

Hot Water

Inlet

Tempered Water

Outlet

Cold Water

Inlet

Inline
Check

Redundant
Thermostatic
Mixing Valve

Primary
Thermostatic
Mixing Valve

G3600 G3650

Installation

1. Valve should be installed at a location where it can easily be
cleaned, adjusted or repaired.

2. The inlets are clearly marked on the valve body casting.
Connect the hot water into the inlet marked “HOT” and cold
water into the inlet marked “COLD.”

3. The checkstops furnished must be installed on both supply
lines as shown above.

4. Use solder or pipe cement sparingly. Supply pipes should
be flushed before the valve is connected. Flush outlet pipe
and valve as soon as it is connected.

Maximum Operating Pressure 125PSI (860 KPA) for Hot and Cold
Water. Maximum hot to cold water pressure differential is 5%.

Note: It may be necessary to recirculate the tempered water to the
face/eyewash should the piping be exposed to excessive hot or cold
conditions. Consult factory for proper piping.

Note: this is a control system which must be cleaned and maintained on a regular basis (see maintenance guide and record MGRG-1000).

IMPORTANT: THESE SYSTEMS ARE DESIGNED TO
PROVIDE MIXED WATER FROM 60 TO 90°F (15 TO
32°C) FOR EMERGENCY SHOWER APPLICATIONS
ONLY. CALL GUARDIAN EQUIPMENT FOR SYSTEMS
DESIGNED TO OPERATE AT TEMPERATURES
OUTSIDE OF THIS RANGE.

Guardian Equipment
1440 N North Branch
Chicago, IL 60642

312 447 8100 telephone
312 447 8101 facsimile
gesafety.com

rev. 0114 / © 2014 Guardian Equipment

1

Adjustment And Service

Installation, Operation and Maintenance Guide

G3600 Series Thermostatic Mixing Valves

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.

To reset adjustable high temperature limit stop:

HANDLE

68240

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.

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).

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.

Troubleshooting

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.

After cleaning or replacing port sleeve assembly,
valve will not hold temperature.

Hot water bypass into cold line. Check Stops

Supplies cannot be shut off completely. Check Stops

Leak at checkstop bonnet. Check Stops

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).

Note: this is a control system which must be cleaned and maintained on a regular basis (see maintenance guide and record MGRG-1000).

Guardian Equipment
1440 N North Branch
Chicago, IL 60642

312 447 8100 telephone
312 447 8101 facsimile
gesafety.com

Port Sleeve Assembly TAG-1M or

RK3600A

Thermostat Group 6810 or

RK3600A

RK3600B

RK3650B

Port Sleeve Assembly

Rebuild Kit

Thermostat Group or

Rebuild Kit

for G3600

for G3650

rev. 0114 / © 2014 Guardian Equipment

2

Installation, Operation and Maintenance Guide

G3600 Series Thermostatic Mixing Valves

Required Method of Piping G3600 & G3650 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.

G3600 G3650

Note: The G3650 Redundant Thermostatic Mixing Valve has been
factory set at 85°F (29°C). This set point can be field adjusted with
a 3/8” wrench (see diagram). “Clockwise” direction will increase
temperature. Maximum set point is 90°F (32°C).

Adjustment Screw

This unit must be cycled each time the emergency equipment is checked. See ANSI Z358.1, Maintenance and Training section:

• Cycle redundant thermostat valve by, limit stop (see page

2) and setting the primary thermostatic mixing valve to full
hot. (G3600 only)

• Open eye wash and check to be sure outlet temperature
does not climb above 90°F (32°C).

• Turn primary thermostatic valve to full cold and wait ten
seconds.

• Check to be sure outlet temperature does not climb above
90°F (32°C).

• Turn primary thermostatic mixing valve to full cold and wait
ten seconds.

• Set primary thermostatic mixing valve to the desired
temperature, adjust limit stop (see page 2) and close eye/face
wash.

• Turn primary thermostatic valve to full hot and wait ten
seconds.

Note: this is a control system which must be cleaned and maintained on a regular basis (see maintenance guide and record MGRG-1000).

Guardian Equipment
1440 N North Branch
Chicago, IL 60642

312 447 8100 telephone
312 447 8101 facsimile
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rev. 0114 / © 2014 Guardian Equipment

3

Instructions for Dismantling Valve

Turn o hot and cold supplies to this valve. Remove four cover
screws MU-2C, lift o cover and thermostat group 6810 (g. 1).
After installing new parts, it will be necessary to reset Pointer to
obtain correct temperature range from Cold to Hot. See page 2
instructions “TO RESET ADJUSTABLE HIGH TEMPERATURE LIMIT
STOP.”

To Clean Port Sleeve Assembly:

To clean port sleeve assembly TAG-1M (g. 2.): Remove base
stud TA-5. Back o port sleeve nut 3402 as far as it will go into
base. Slide TAG-1M port sleeve assembly toward port sleeve
nut and lift out of valve base. Clean part TAG-1M with a soft
cloth; DO NOT use abrasives such as emery cloth or sandpaper.
After cleaning, wash parts in clean water and reassemble in
valve base. When reassembling port sleeve assembly BE SURE
TO INSTALL WITH SHORT SLOT END IN BASE AND LONG SLOT
END AT PORT SLEEVE NUT. Locate one set of port slots facing
directly toward front of the valve. Tighten port sleeve nut 3402
just enough to hold port sleeve in place, (do not cramp or dis­tort port sleeve by exerting excess size pressure when tighten­ing port sleeve nut).

Installation, Operation and Maintenance Guide

G3600 Series Thermostatic Mixing Valves

HANDLE

68240

STOP

6820

PORT SLEEVE ASSY.

TAG-1M

To Clean Thermostat Group:

To clean thermostat group 6810 (DWG 1.), remove handle
68240 by loosening lock screw and pull o. Remove stop re­taining ring MU-13D and stop 6820. Remove thermostat group
by pushing rod through cover. BE CAREFUL NOT TO PULL COILS
OUT OF SHAPE. If deposit has collected on thermostat coil,
clean it o with a brush in cleaning solution and wash well
before reassembly. Cleaning solution should be non-corrosive
and grit free. To reassemble: be sure, port sleeve assembly is
in place and is working freely from side to side. Reinstall base
stud TA-5, then place thermostat group 6810 on base stud and
BE SURE DRIVING BALL ON PORT SLEEVE ASSEMBLY TAG-1M IS
INSERTED IN HOLE ON LOWER COIL BRACKET (DWG 3.) Move
thermostat back and forth to be sure all parts are free. Replace
cover on valve base, install the four cover screws, and turn on
hot and cold water supplies. See instructions below “To Reset
High Temperature Limit Stop” to properly reset limit stop.

After installation, adjustment, and cleaning, always check the
temperature of the valve when turned to full HOT per the
warning on the front page, using a thermometer. Also check
and if necessary adjust the temperature of the hot water
source. EXCESSIVELY HOT WATER (OVER 90ºF) IS DANGEROUS
AND MAY CAUSE SCALDING!!

Note: this is a control system which must be cleaned and maintained on a regular basis (see maintenance guide and record MGRG-1000).

Guardian Equipment
1440 N North Branch
Chicago, IL 60642

312 447 8100 telephone
312 447 8101 facsimile
gesafety.com

rev. 0114 / © 2014 Guardian Equipment

4

Installation, Operation and Maintenance Guide

G3600 Series Thermostatic Mixing Valves

Valve Parts

COVER
O-RING

3009

STEM

O-RING

NU-5A

Checkstop Parts Repair Kit

STOP

6820

HANDLE

68240

B21202
LOWER STEM
AND PACKING

G3650

LVC-8A
CHECK

BONNET*

G3600

* Inlcudes parts to repair both hot and cold checkstops

Lock-Type Pointer

B05153

SPRING

RK3650B

MU-6A

LOWER

STEM w/PKG*

B21204
UPPER

STEM

MU-9A

CHECK

SPRING*

RK3600B*

Note: after installing new parts it will be
necessary to reset the adjustable high
temperature limit stop, (see page 2).

B21205

WASHER

MU-4A

UPPER

CHECK STEM

MU-5A O-RING*

B21206

PACKING

B21207

BONNET

NUT

LVC-7A
CHECK

BONNET

STEM 0-RING

MU-5A (2)

RK3600A

COVER O-RING

3009

Note: G3600 & G3650
Valves are furnished
with lockable pointers.

Note: this is a control system which must be cleaned and maintained on a regular basis (see maintenance guide and record MGRG-1000).

Guardian Equipment
1440 N North Branch
Chicago, IL 60642

312 447 8100 telephone
312 447 8101 facsimile
gesafety.com

rev. 0114 / © 2014 Guardian Equipment

5

Flow Capacities

Maximum ow capacity gallons per minute

Pressure drop PSIG

Installation, Operation and Maintenance Guide

G3600 Series Thermostatic Mixing Valves

G3600
G3650

CAUTION: ALL THERMOSTATIC WATER MIXING
VALVES HAVE LIMITATIONS. THEY WILL NOT PROVIDE
THE DESIRED ACCURACY OUTSIDE OF THEIR FLOW
CAPACITY RANGE. CONSULT THE CAPACITY CHART
AND DO NOT OVERSIZE. MINIMUM FLOW MUST BE
NO LESS THAN SHOWN BELOW.

MODEL IN** OUT**

G3600 1/2" 1/2"

MINIMUM

FLOW
(GPM)

L/MIN .3 .7 1.0 1.4 1.7 2.1 2.4 2.8 3.1 BAR

INTERNAL

COLD WATER

BYPASS

MINIMUM

5 10 15 20 25 30 35 40 45 PSI

2 4 2.5 4 5 6 7 8 8.5 9.5 10 GPM

7.6 15 9.5 15 19 23 27 30 32 36 38 L/MIN

IMPORTANT: THESE SYSTEMS ARE DESIGNED TO
PROVIDE MIXED WATER FROM 60 TO 90°F (15 TO
32°C) FOR FACE/EYEWASH APPLICATIONS ONLY. CALL
GUARDIAN EQUIPMENT FOR SYSTEMS DESIGNED
TO OPERATE AT TEMPERATURES OUTSIDE OF THIS
RANGE.

SYSTEM PRESSURE DROP

MAXIMUM FLOW CAPACITY

**G3600 HAS 1/2" NOMINAL SWEAT CONNECTIONS.

G3650 HAS 3/4" NPT THREADED CONNECTIONS.

Limited Warranty

Guardian Equipment warrants the original purchaser that products manufactured by them, (not by others), will be free from defects in materials and
workmanship under normal conditions of use. When properly installed and maintained in accordance with Guardian Equipment’s instructions, for a period of one
year from date of shipment. During this period the Guardian Equipment will at its option repair or replace any product, or part thereof, which shall be returned,
freight prepaid, to the Guardian Equipment factory and determined by Guardian Equipment to be defective in materials or workmanship. There are no warranties,
express or implied, which extend beyond the description contained herein. There are no implied warranties of merchantability or of fitness for a particular
purpose. In no event will Guardian Equipment be liable for labor or incidental or consequential damages. Any alteration or improper installation or use of the
product will void this limited warranty.

Note: this is a control system which must be cleaned and maintained on a regular basis (see maintenance guide and record MGRG-1000).

Guardian Equipment
1440 N North Branch
Chicago, IL 60642

312 447 8100 telephone
312 447 8101 facsimile
gesafety.com

rev. 0114 / © 2014 Guardian Equipment

6