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Note 1: Criteria for the difference between suction and discharge temperatures, between water
inlet and water outlet temperature
(1) Heating operation
After operating for a minimum of 30 minutes in "HEAT" mode, if the ΔT water temperature difference
between water inlet and water outlet of the hot water module is 3 to 5 degrees, it is normal. (Hot water
module)
* If demand from the indoor unit on the outdoor unit is low because the difference between the temperature
set by the remote controller and the temperature of the room or the difference between the temperature
set by the remote controller and the water inlet temperature is small, then the ΔT temperature difference is
small.
* Consider that ΔT temperature difference may diminish in cases of a system in which the connected indoor
unit capacity exceeds the outdoor unit capacity, the pipe length is long, or a large difference exists among
outdoor units.
Note 2: Criteria for operating power current
The table below shows the maximum current for each outdoor unit. Under standard conditions, operating
current is about 80% of the value shown in the table below.
<SHRM-e>
Outdoor unit
MMY-MAP
Current value
(A)
Note 3: Criteria for cycle status
(1) These data are based on operating a 4-way Air Discharge Cassette type air conditioner of 100%
connection with standard piping length.
Data may vary depending on temperature conditions, installed pipe length, and room shape combinations,
or indoor unit connection capacity.
For pressure criteria in different temperature conditions, refer to (2).
<SHRM-e>
Pressure
Outdoor
(MPa)
unit
Operating
MMY-
mode
PD
MAP
Cooling
2.9
0806*
Heating
2.6
Cooling
3.1
1006*
Heating
2.6
Cooling
3.2
1206*
Heating
2.6
Cooling
3.2
1406*
Heating
2.6
Cooling
3.2
1606*
Heating
2.8
Cooling
3.1
1806*
Heating
2.8
Cooling
3.1
2006*
Heating
2.8
* This compressor is driven with a 4-pole motor. The value of the compressor number of rotations (rps) measured
with a clamp meter at the compressor lead line is two times the rotation count (rps) of the compressor.
* Each compressor may have a different frequency as a measure against resonance.
* The temperature of the indoor heat exchanger (TC) indicates TCJ sensor temperature when cooling, and
TC2 sensor temperature when heating, respectively.
(2) Criteria for operating pressure
Operating mode
Indoor temperature (°C)
Outdoor temperature (°C)
High pressure (MPa)
Pressure
Low pressure (MPa)
* Criteria after 15 minutes or more has passed since operating started
(3) On rotations of outdoor fans
Outdoor fans may rotate slowly to control pressure when cooling with low outer air temperature or heating
with excessive load. For control content, also refer to items in Section 6, "Control Outline: Outdoor Unit,
Outdoor Fan Control."
∗
∗
∗
0806
1006
1206
21.5
26.1
31.0
Pipe surface temperature
Indoor heat
Discharge
Suction
PS
exchanger
(TD)
(TS)
0.9
80
16
0.7
75
5
0.9
85
16
0.7
80
4
0.9
90
16
0.7
85
3
0.9
90
16
0.7
80
4
0.9
90
16
0.7
85
3
0.9
80
15
0.7
70
4
0.9
85
15
0.6
75
3
Cooling
Heating
18~32
15~25
25~35
5~10
2.5~3.3
2.0~3.3
0.5~0.9
0.5~0.7
∗
∗
1406
1606
1806
35.8
40.6
Number of compessor
(°C)
Outdoor
Liquid
heat
Compressor
tempreture
exchanger
(TC)
(TL3)
(TE)
10
40
30
35
3
30
11
40
30
35
2
30
11
40
30
35
2
25
10
40
35
35
3
30
10
40
35
30
2
25
11
40
35
30
3
25
11
40
35
30
2
25
– 38 –
∗
∗
2006
44.9
49.3
rotations (rps)
Indoor
fan
Compressor
1
2
50
50
High
50
50
High
60
60
High
65
65
High
70
70
High
75
75
High
60
60
High
65
65
High
70
70
High
70
70
High
70
70
High
75
75
High
80
80
High
85
85
High
Air temperature
condition (°C)
Indoor
outdoor
27/19
35/-
20/-
7/6
27/19
35/-
20/-
7/6
27/19
35/-
20/-
7/6
27/19
35/-
20/-
7/6
27/19
35/-
20/-
7/6
27/19
35/-
20/-
7/6
27/19
35/-
20/-
7/6
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