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REQUIRED PIPING METHOD #5

PROCEDURE TO BALANCE CIRCULATION SYSTEM

1. MAKE SURE NO WATER IS BEING DRAWN IN THE BUILDING. OPEN BALANCING VALVE #1

APPROXIMATELY HALF WAY AND START CIRCULATOR. KEEP BALANCE VALVE #2 CLOSED AT
THIS TIME

2. OBSERVE TEMPERATURE UNTIL IT STABILIZES.

3. CLOSE BALANCING VALVE #1 SLIGHTLY IF TEMPERATURE IS TOO HOT, OR OPEN IT SLIGHTLY

IF TEMPERATURE IS TOO COLD. ALLOW TEMPERATURE TO STABILIZE, REPEAT UNTIL DESIRED

CIRCULATION TEMPERATURE IS SET.

4. IF UNABLE TO REACH DESIRED TEMPERATURE WITH VALVE #1 IN THE FULL OPEN POSITION,

OPEN BALANCE VALVE #2 IN SMALL INCREMENTS (i.e. 1/8, ¼, 3/8, ETC) UNTIL DESIRED
TEMPERATURE IS ACHIEVED.

REMEMBER! THIS IS A CONTROL DEVICE WHICH MUST BE CLEANED AND
MAINTAINED ON A REGULAR BASIS (SEE MAINTENANCE GUIDE AND
RECORD, MGR-1000).

5

SYSTEM FIXTURES

HOT

WATER

SOURCE

COLD

SUPPLY

CIRCULATOR

AQUASTAT

BALANCING

HEAT

TRAP

VALVE

CHECK

FULL RETURN
LINE SIZE

VALVE #1

TEMPERED
RETURN

HIGH TEMPERATURE RETURN

BALANCING VALVE #2
WITH CHECK

BALL VALVE FOR

SETUP (OPTIONAL)

C

T

C

CIRCULATOR

HIGH TEMPERATURE FIXTURES

ISOLATION

VALVE

VALVE

CHECK

TEMPERED

10

- 10

20

0

4

0

14

0

°F

0

60

°C

50

LEONA RD

20

40

30

1

2

0

10

0

60

80

LEONARD
THE RM OS TATIC

C

H

LEONARD
THE RM OS TATIC

C

H

Summary of Contents for TM-1520B-2P

Page 1: ...mblies installed on a recirculated hot water system MUST be piped according to LEONARD S REQUIRED PIPING METHOD 5 see page 4 6 Refer to page 3 of this bulletin for correct Setup Instructions Maximum O...

Page 2: ...less than shown see Flow Capacities page 12 If installed on a recirculated hot water system make certain the valve is piped according to Leonard s Required Piping Methods see page 4 REMEMBER THIS IS...

Page 3: ...maximum temperature has now been set Test this temperature by holding a thermometer under the flow of water to be certain it is as desired LIMIT STOP MUST BE RESET AND RECHECKED EACH TIME HANDLE IS R...

Page 4: ...all valve V2R and shut ball valve V2L at the mixing valve 9 Set outlet temperature of the mixing valve LVR to the same temperature as step 7 10 Turn off enough fixtures for a flow of at least 2 GPM 7...

Page 5: ...RATURE WITH VALVE 1 IN THE FULL OPEN POSITION OPEN BALANCE VALVE 2 IN SMALL INCREMENTS i e 1 8 3 8 ETC UNTIL DESIRED TEMPERATURE IS ACHIEVED REMEMBER THIS IS A CONTROL DEVICE WHICH MUST BE CLEANED AND...

Page 6: ...on corrosive cleaning solution DO NOT USE ABRASIVES Be certain thimble moves freely on port sleeve Note Driving ball on thimble must engage coil bracket in assembling 6 To disassemble bridge assembly...

Page 7: ...OINTER ROD KIT 2 200Y CHECKSTOP KIT KIT 1 200Y PACKINGS GASKETS THERMOSTAT TGM 2 125 GROUP SCREEN 4724 TM 8 STEM O RING 4 LOWER STEM PACKING COIL SLEEVE 4733 2 EA STUD SPRING YELLOW 4742 TGM 1 200 POR...

Page 8: ...DE AND RECORD NOTE AFTER INSTALLING NEW PARTS IT WILL BE NECESSARY TO RESET THE ADJUSTABLE HIGH TEMPERATURE LIMIT STOP ON EACH VALVE SEE PAGE 2 CHECKSTOP PARTS REPAIR KITS MU 4A RF MU 5A UPPER CHECKST...

Page 9: ...rod nut MU 10B and pull bridge assembly off control rod 5 To clean submerge bridge assembly in clean water or non corrosive cleaning solution DO NOT USE ABRASIVES Be certain thimble moves freely on po...

Page 10: ...RY TO RESET THE ADJUSTABLE HIGH TEMPERATURE LIMIT STOP ON EACH VALVE SEE PAGE 8 REPAIR KITS 10 04 125 SPRING LOWER STEM PACKING SWIVEL SWIVEL NUT 010 TM 02 BONNET STRAINER CAP 06 014 CAP PACKING 013 M...

Page 11: ...BASIS SEE MAINTENANCE GUIDE AND RECORD NOTE AFTER INSTALLING NEW PARTS IT WILL BE NECESSARY TO RESET THE ADJUSTABLE HIGH TEMPERATURE LIMIT STOP ON EACH VALVE SEE PAGE 2 11 CHECKSTOP PARTS REPAIR KITS...

Page 12: ...TY Leonard Valve Company hereinafter Leonard warrants the original purchaser that products manufactured by Leonard will be free from defects in material or workmanship under normal conditions of use w...

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