Mitsubishi Electric PAA-A18AA1 Manual De Mantenimiento página 32

8. Furnace control
Furnace Fan (G) ON
HiSpeed Fan (Y) ON
Furnace Heat Stage 1 (W1) ON
Furnace Heat Stage 2 (W2) ON
Furnace Fan (G) OFF
HiSpeed Fan (Y) OFF
Furnace Heat Stage 1 (W1) OFF
Furnace Heat Stage 2 (W2) OFF
HiSpeed Fan Stage 1 (G+Y1)
HiSpeed Fan Stage 2 (Y2)
Furnace Heat Stage 1 (W1) ON
Furnace Heat Stage 2 (W2) ON
HiSpeed Fan Stage 1 (G+Y1)
HiSpeed Fan Stage 2 (Y2)
Furnace Heat Stage 1 (W1) OFF
Furnace Heat Stage 2 (W2) OFF
Key
TO
Setpoint temperature
TRA
Room Temperature
X mins
Time Delay setting (24-29 mins)
EBP
Economic Balance Point
CBP
Capacity Balance Point
• Time Delay Selection Table
1
Request Code
390 Monitor Time Delay Setting
391 Set Time Delay to 24 minutes
392 Set Time Delay to 24 minutes
393 Set Time Delay to 24 minutes
394 Set Time Delay to 29 minutes
1
Time delay can only be selected with MA controller. If use of a non-MA controller is desired, the time delay must first be selected
with the MA controller. Then the non-MA controller can be attached and used.
2
Delay times are approximate to ± 1 minute.
3
The default time delay setting is 24 minutes.
Specifications are subject to change without notice.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1 and all-
Heat Mode - Single Speed Fan
(TO - TRA ≥ 0.9 °F [0.5 °C])
(TO - TRA ≥ 2.7 °F [1.5 °C] AND TRA has not increased by 0.9 °F [0.5 °C] in X min) OR
(TO - TRA ≥ 0.9 °F [0.5 °C] AND EBP below OAT) OR
(TO - TRA ≥ 0.9 °F [0.5 °C] AND CBP below OAT)
Furnace Heat Stage 1 ON for > 7 min AND
TRA has not increased by 0.9 °F [0.5 °C] in 7 min
(TO - TRA ≤ -0.9 °F [-0.5 °C]) AND Mode 25 = 2
(TO - TRA ≤ 0 °F [0 °C])
Heat Mode - Dual Speed Fan
(TO - TRA ≥ 0.9 °F [0.5 °C])
(TO - TRA ≥ 0.9 °F [0.5 °C]) AND FanSpeed = High OR
(TO - TRA ≥ 1.8 °F [1.0° C]) AND FanSpeed = Auto
(TO - TRA ≥ 2.7 °F [1.5 °C] AND TRA has not increased by 0.9 °F [0.5 °C] in X min) OR
(TO - TRA ≥ 0.9 °F [0.5 °C] AND EBP below OAT) OR
(TO - TRA ≥ 0.9 °F [0.5 °C] AND CBP below OAT)
Furnace Heat Stage 1 ON for > 7 min AND
TRA has not increased by 0.9 °F [0.5 °C] in 7 min
(TO - TRA ≤ -0.9 °F [-0.5 °C]) AND Mode 25 = 2
(TO - TRA ≤ 0 °F [0 °C])
2
Action
3
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