Water Circulation Pump Characteristics - Mitsubishi Electric EHPT Serie Manual De Instalación

4
Installation

Water Circulation Pump Characteristics

1. Primary circuit
Pump speed can be selected by main remote controller setting (see <Figure 4.3.3 to
4.3.7> ).
Adjust the pump speed setting so that the flow rate in the primary circuit is
appropriate for the outdoor unit installed (see Table 4.3.1). It may be necessary to
add an additional pump to the system depending on the length and lift of the
primary circuit.
For outdoor unit model not listed in the <Table 4.3.1>, refer to Water flow rate
range in the specification table of outdoor unit Data Book.
<Second pump >
If a second pump is required for the installation please read the following carefully.
If a second pump is used in the system it can be positioned in 2 ways.
The position of the pump influences which terminal of the FTC the signal cable
should be wired to. If the additional pump(s) have current greater than 1A please
use appropriate relay. Pump signal cable can either be wired to TBO.1 1-2 or
CNP1 but NOT both.
Option 1 (Space heating/cooling only)
If the second pump is being used for the heating circuit only then the signal cable
should be wired to TBO.1 terminals 3 and 4 (OUT2). In this position the pump can
en
be run at a different speed to the cylinder unit's in-built pump.
Option 2 (Primary circuit DHW and space heating/cooling)
If the second pump is being used in the primary circuit between the cylinder unit
and the outdoor unit (Package system ONLY) then the signal cable should be
wired to TBO.1 terminals 1 and 2 (OUT1). In this position the pump speed MUST
match the speed of the cylinder unit's in-built pump.
Note: Refer to 5.2 Connecting inputs/outputs.
Water circulation pump characteristics
80
70
60
50
40
30
20
10
0
0 5 10
80
70
60
50
40
30
20
10
0
0 5 10
80
70
60
50
40
30
20
10
0
0 5 10
13
E*PT17X series
Speed 5 (Default setting)
Speed 4
Speed 3
Speed 2
Speed 1
15 20 25 30
Flow rate [L/min]
<Figure 4.3.3>
E*ST17/20D series
Speed 5 (Default setting)
Speed 4
Speed 3
Speed 2
Speed 1
15 20 25 30
Flow rate [L/min]
<Figure 4.3.5>
E*ST20/30C series
Speed 5 (Default setting)
Speed 4
Speed 3
Speed 2
Speed 1
15 20 25 30
Flow rate [L/min]
<Figure 4.3.7>
Outdoor heat pump unit
Packaged model
Split model
* If the water flow rate is less than the minimum flow rate setting of the flow
sensor(default 5.0 L/min), the flow rate error will be activated.
If the water flow rate exceeds 36.9 L/min (E**T20/30 series) or 25.8 L/min
(E**T17 series), the flow speed will be greater than 2.0 m/s, which could erode
the pipes.
2. Sanitary circuit
Default setting: Speed 2
DHW circulation pump MUST be set to speed 2.
80
70
60
50
40
30
20
10
0
35 40
0
80
70
60
50
40
30
20
10
0
35 40
0
* For installation of E*PT series, set its pump speed with a pressure drop
between the cylinder unit and the outdoor unit factored into the external static
pressure.
35 40
Water flow rate range [L/min]
PUZ-WM50
PUZ-WM60
PUZ-WM85
PUZ-WM112
PUZ-HWM140
SUZ-SWM40
SUZ-SWM60
SUZ-SWM80
PUD-S(H)WM60
PUD-S(H)WM80
PUD-S(H)WM100
PUD-S(H)WM120
PUD-SHWM140
PUHZ-FRP71
PUHZ-SW75
PUHZ-SW100
PUHZ-SW120
PUHZ-SHW80
PUHZ-SHW112
PUHZ-SHW140
PUMY-P112
PUMY-P125
PUMY-P140
<Table 4.3.1>
E*PT20/30X series
5 10 15 20 25
Flow rate [L/min]
<Figure 4.3.4>
E*ST30D series
5 10 15 20 25
Flow rate [L/min]
<Figure 4.3.6>
6.5 - 14.3
8.6 - 17.2
10.8 - 24.4
14.4 - 32.1
17.9 - 36.9
6.5 - 11.4
7.2 - 17.2
7.8 - 21.5
9.0 - 22.9
9.0 - 22.9
14.3 - 34.4
14.3 - 34.4
14.3 - 34.4
11.5 - 22.9
10.2 - 22.9
14.4 - 32.1
20.1 - 36.9
10.2 - 22.9
14.4 - 32.1
17.9 - 36.9
17.9 - 35.8
17.9 - 35.8
17.9 - 35.8
Speed 5 (Default setting)
Speed 4
Speed 3
Speed 2
Speed 1
30 35 40
Speed 5 (Default setting)
Speed 4
Speed 3
Speed 2
Speed 1
30 35 40