Carrier 38MBRC Series User Manual

38MBRC: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
11
COOLING Mode
Outdoor Fan Running Rules
Fig. 11 — Outdoor Fan Running Rules
In the COOLING mode, the indoor fan runs all the time and the speed
can be selected as high, medium, low and auto. The indoor fan is
controlled as shown in Fig. 12.
Fig. 12 — Indoor Fan Table
The AUTO Fan function under the COOLING mode acts (see Fig. 13).
Fig. 13 —AUTO Fan function under the COOLING Mode
HEATING Mode
Outdoor Fan Running Rules
Fig. 14 — Outdoor Fan Running Rules
Indoor Fan Running Rules
When the compressor is on, the indoor fan can be set to high/med/low/
auto. And the anti-cold wind function has the priority. The indoor fan is
controlled as shown in Fig. 15.
Fig. 15 — Indoor Fan Running Rules
AUTO Fan action in HEATING mode
Fig. 16 — AUTO Fan action in HEATING mode
A DC_FAN_HI_SPD_ADD
B DC_FAN_MID_SPD_ADD
C DC_FAN_MIN_SPD_ADD
D DC_FAN_SLOW_SPD_ADD
E DC_FAN_SSLOW_SPD_ADD
28
(82.4°F)
19
(66.2°F)
17
(62.6°F)
26
(78.8°F)
25
(77°F)
23
(73.4°F)
22
(71.6°F)
20
(69°F)
A
B
C
D
E
A
DD
DD
D
D
D
D
D
D
D
D
D
D
D
_
A
A
A
A
D
D
D
D
D
D
D
DD
D
D
_
A
DD
DD
D
D
D
D
DD
D
D
D
D
P
D
_
A
A
A
A
D
D
D
D
D
DD
D
D
D
D
D
S
P
D
_
A
A
A
A
A
A
A
A
A
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
Setting
Fan Speed
Actual
Fan Speed
H+(H+=H+G)
AH（=H）
B
C
M+(M+=M+Z)
D M(M=M)
E
F
L+(L+=L+D)
G L(L=L)
H
I
T1-Td °F (°C)
L
L-(L-=L-D)
H
H-（H-=H-G)
M
M-(M-=M-Z)
4.5(40.1)
3.0(37.4)
1.5(34.7)
4.5(40.1)
3.0(37.4)
1.5(34.7)
4.5(40.1)
3.0(37.4)
1.5(34.7)
a
b
c
d
6.0°C(13°F)
T1-Td
e
H
(H-L)*0.75+L
(H-L)*0.5+L
(H-L)*0.25+L
L
5.0°C(11.0°F)
4.0°C(8°F)
2.5°C(5°F)
1.0°C(2°F)
T4
E
D
C
B
A DC_FAN_HI_SPD_ADD
DC_FAN_MID_SPD_ADD
DC_FAN_MIN_SPD_ADD
DC_FAN_SLOW_SPD_ADD
DC_FAN_SSLOW_SPD_ADD
59°F(15°C)
5
5.4°F(13°C
)
53.6°F(12°C)
50°F(10°C)
6
9.8°F(21°C
)
6
6.2°F(19°C
)
64.4°F(18°C)
60.8°F(16°C)
Setting Fan
Speed
H（=H）
H+(H+=H+G)
M(M=M)
M+(M+=M+Z)
L(L=L)
L+(L+=L+D)
H-（H-=H-G)
M-(M-=M-Z)
L-(L-=L-D)
T1-Td+34.7°F(1.5°C)
L
H
M
-3
°F(-1.5°C)
-6°F(-3.0°C)
-10°F(-4.5°C)
Actual Fan
Speed
-3°F(-1.5°C)
-6°F(-3.0°C)
-10°F(-4.5°C)
-3°F(-1.5°C)
-6°F(-3.0°C)
-10°F(-4.5°C)
0°F(0.0°C)
T
1-Td+3°F(1.5°C)
L
(H+-L)*0.2+L
(H+-L)*0.4+L
(H+-L)*0.6+L
H+
(H+-L)*0.8+L
-2°F(-1°C)
-4°F(-2°C)
-6°F(-3°C)
-8°F(-4°C)
-11.0°F(-5°C)
-13°F(-6°C)
-15°F(-6.5°C)

Carrier 38MBRC Series Specifications

General

Brand	Carrier
Model	38MBRC Series
Category	Heat Pump
Language	English