1. Manuals
  2. Brands
  3. Mitsubishi Electric Manuals
  4. Air Conditioner
  5. CITY MULTI PQRY-P72-336ZLMU-A1
  6. Data book

Mitsubishi Electric CITY MULTI PQRY-P72-336ZLMU-A1 Data Book page 77

Hide thumbs
Table of Contents
8. SYSTEM DESIGN GUIDE
6) Pump interlock circuit
Heat source
equipment
Water
circuit
Heat source
water pump
(MP)
Site control panel
Wiring diagram
This circuit uses the "Terminal block for pump interlock (TB8)" inside the electrical parts box of the heat source equipment.
This circuit is for interlocking of the heat source equipment operation and the heat source water pump.
Heat source equipment
TB8
X
1
Operation
ON signal
2
3
Pump interlock
4
Heat source equipment
TB8
X
1
Operation
ON signal
2
3
Pump interlock
4
*Pump interlock
Operating the heat source unit without circulation water
inside the water piping can cause troubles. Be sure to
provide interlocking for the unit operation and water
circuit(pump interlock). Since the terminal block is being
provided inside the unit, use it as required.
Use the flow switch (FS)
MEES21K047
• Plural indoor units (8HP:15sets, 16HP:16sets maximum) being connected to
a single refrigerant system can be controlled individually.
• The transmission line is of a jumper wiring system using non-polar 2 wires.
Refrigerant piping
Transmission line
Indoor
unit
Remote controller
Room-A
Room-E
Site control panel
Flow switch:FS
52P
Flow switch:FS
To next equipment
BC controller
Indoor
Indoor
unit
unit
Room-B
Room-C
(Remote controller
operation at two spot)
Room-F
L1
L2
MP
WR2-Series-575V
Indoor
unit
Room-D
Room-G
~ 208/230V
MCB
X
: Relay
FS : Flow switch
52P : Magnetic contactor
for heat source
water pump
MP : Heat source
water pump
MCB : Circuit breaker
* Use an insulated ring
52P
terminal for the cable that
connects to TB8.
75
Show Quick Links

Hide quick links:

Table of Contents
loading

Related Manuals for Mitsubishi Electric CITY MULTI PQRY-P72-336ZLMU-A1

Related Products for Mitsubishi Electric CITY MULTI PQRY-P72-336ZLMU-A1

This manual is also suitable for:

City multi pqry-p72-336zslmu-a1City multi pqry-p72zlmu-a1City multi pqry-p96zlmu-a1City multi pqry-p120zlmu-a1City multi pqry-p144zslmu-a1City multi pqry-p168zslmu-a1 ... Show all

Table of Contents