Uponor SYSTEMpro 311, Руководство по установке

Страница: 27 / 107

5) Mixing System Pump (Mixing Pmp P1)
(See fig. i)
Mixing Pmp P1 terminals (11 and 12) are isolated outputs.
No power is available on these terminals from the control.
• Use terminals as a switch to either make or break power
to mixing system pump
• As an isolated contact, it may switch a voltage between
24 VAC and 240 VAC
6) Variable Speed Injection Pump (Cls/P4)
(See fig. j)
The SYSTEMpro 311 can vary the speed of a pump motor with
locked rotor current of less than 2.4 A (most small wet rotor
circulators may be used as described in APPENDIX I - page 85).
• If using a variable speed injection pump, connect one of
the wires from variable speed injection pump to Cls/P4
terminal (19)
• Connect other wire on variable speed injection pump to live
(L) side of 120 VAC power supply
• Connect Pwr Mix terminal (17) to neutral (N) side of 120 VAC
power source
7) Mixing Valve Actuator (See fig. k)
If a mixing valve is used:
• Connect one side of 24 VAC power to Pwr Mix terminal (17)
on control
• Connect output relay Opn (18) to the "open" terminal of
actuating motor
• Connect output relay Cls/P4 (19) to the "close" terminal of
actuating motor
• Connect second side of 24 VAC circuit to common terminal
of actuating motor
NOTE: The SYSTEMpro 311 has an internal
overload fuse rated at 2.5 A 250 VAC — contact
your Wirsbo sales representative for repair
information if fuse is blown.
25
INST
ALLA
TION
INSTALLATION - Step 6 - Electrical Connections to the Control
Mixing
Pmp P1
11 12
120 VAC
L
N
i
120 VAC
L
N
Pwr
17
Mix
Opn
18
Cls/
19
P4
j
Pwr
17
Mix
Opn
18
Cls/
19
P4
24 or 120 VAC
R
C
Com
k