88
Note 1: Criteria for the difference between suction and discharge temperatures
(1) Cooling operation
After operating for a minimum of 30 minutes in “COOL” mode, if the
Δ
T dry bulb temperature difference between
suction and discharge air of the indoor unit is 46.4 °F (8 °C) or more, it is normal.
(2) Heating operation
After operating for a minimum of 30 minutes in “HEAT” mode, if the
Δ
T dry bulb temperature difference between
suction and discharge air of the indoor unit is 59 °F (15 °C) or more, it is normal.
* If demand from the indoor unit on the outdoor unit is low because the difference between the temperature set
by the remote control and the temperature of the room is small, then the
Δ
T temperature difference is small.
* Consider that
Δ
T 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.
Note 3: Criteria for cycle status
(1) These data are based on operating a 4-way 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).
* This compressor is driven with a 4-pole motor. The value of the compressor frequency (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
* 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.”
Model
MMY-MAP
0724HT6UL
0964HT6UL
1144HT6UL
Current value
(A)
18
23
24
Model
Operating
mode
Pressure
(psi)
Pipe surface temperature
(°F)
Number of compressor
rotations
(rps)*
Indoor
fan
Air temp.
condition
(DB/WB) (°F)
MMY-MAP
Pd
Ps
Discharge
(TD)
Suction
(TS)
Indoor
heat
exchanger
(TCJ)
Outdoor
heat
exchanger
(TE)
Liquid
temp.
(TL)
Comp.1
Comp.2
Comp.3
Indoor
Outdo
or
0724HT6UL
Cooling
410
130
180
60
48
105
105
50
50
–
High
80/67
95/-
Heating
420
102
181
40
100
35
90
50
50
–
High
70/-
47/43
0964HT6UL
Cooling
415
130
181
60
48
105
105
45
45
45
High
80/67
95/-
Heating
430
102
183
38
100
35
90
50
50
50
High
70/-
47/43
1144HT6UL
Cooling
435
130
183
60
50
105
105
50
50
50
High
80/67
95/-
Heating
420
100
181
39
100
35
90
57
57
57
High
70/-
47/43
Operating mode
Cooling
Heating
Indoor temp.
(°F)
64
–
90
59
–
77
Outdoor temp.
(°F)
77
–
95
41
–
50
Pressure
Pd
(psi)
290
–
465
365
–
475
Ps
(psi)
75
–
135
70
–
110
Summary of Contents for MMY-MAP0724HT6UL
Page 229: ...228 15Exploded Diagram Parts Price List SMMS i OUTDOOR UNIT MMY MAP0724HT6UL ...
Page 230: ...229 MMY MAP0724HT6UL ...
Page 232: ...231 SMMS i OUTDOOR UNIT MMY MAP0964HT6UL MMY MAP1144HT6UL ...
Page 233: ...232 MMY MAP0964HT6UL MMY MAP1144HT6UL ...
Page 237: ...236 SMMS i INV SERVICE PARTS LIST MMY MAP0724HT6UL 4 pieces PC board ...
Page 238: ...237 SMMS i INV SERVICE PARTS LIST MMY MAP0964HT6UL MMY MAP1144HT6UL 4 pieces PC board ...
Page 241: ...Copyright 2011 TOSHIBA CARRIER CORPORATION ALL Rights Reserved ...
