Leonard TM-2020B-3PS - SETUP INSTRUCTIONS; Piping Method Requirement; Supply and Circulator Preparation; Flow Rate and Fixture Setup

SETUP INSTRUCTIONS
TM-2020B-3P PARALLEL SYSTEMS
1. The Parallel Unit MUST be piped according to a Leonard
RequiredPipingMethod5(seepage4).
2. Make sure full hot and cold supplies to this assembly are
operating. The temperature of the hot water source must be
properly set and maintained.
3. The circulator (if used) must be turned OFF before setup.
4. Turn on enough fixtures for a flow of at least 30 GPM (114
l/min.) downstream from this system. Make sure each fixture
is set to deliver full "HOT" water.
5. Close all ball valves, except valve B on valve assembly 1.
6. Make sure ball valve B is in the full open position.
7. Set outlet temperature of mixing valve C to the required level.
8. Open ball valve B on valve assembly 2 and shut ball valve B
on valve assembly 1.
9. Set outlet temperature of the mixing valve C on valve
assembly 2 to the same temperature as step 7.
10. Repeat steps 8 & 9 for valve assembly 3.
11. Turn off enough fixtures for a flow of at least 2 GPM (7.6
l/min) downstream from this system. Make sure each fixture
is set to deliver full "HOT" water.
12. Close all ball valves, except valve A on valve assembly 1.
13. Make sure ball valve A is in the full open position.
14. Set outlet temperature of mixing valve D to the same
temperature as Step 7.
15. Open ball valve A on valve assembly 2 and shut ball valve A
on valve assembly 1.
16. Set outlet temperature of the mixing valve D on valve
assembly 2 to the same temperature as step 7.
17. Repeat steps 15 & 16 for valve assembly 3.
18. Open all outlets. System is operational. To balance
circulation system temperature, see page 4.
3
ASSE
1017
LEONARD
THERMOSTATIC
50
60
°C
1
2
0
-10
1
4
0
°F
0
20
8
0
30
6
0
40
R
LEONARD
10
1
0
0
LEONARD
THERMOSTATIC
C
H
0
2
0
4
0
C
H
ASSE
1017
LEONARD
THERMOSTATIC
C
H
ASSE
1017
HOT
INLET
COLD
INLET
B
A
C
D
THERMOMETER
VALVE
ASSEMBLY 1
VALVE
ASSEMBLY 2
VALVE
ASSEMBLY 3