Delta PG-35 Service Manual download pdf (Page 56)

11-11

CONTROL SYSTEM

SM DELTA 1-E.2 GB

11.10 Outdoor Unit Controller Indicators

Unit has three LED’s. SB LED, STATUS LED, FAULT LED.

SB LED is ON when power is ON (230 VAC),

STATUS LED is ON when COMP is ON, and Blinks according to diagnostics mode deﬁnitions

when either fault or protection occurs.

FAULT LED Blinks according to diagnostics mode deﬁnitions when either fault or protection occurs.

11.11 Test Mode

11.11.1 Entering Test Mode

System can enter Test mode in two ways:

• Automatically when the following conditions exists for 30 minutes continuously:

o Mode = Cool, Set point = 16, Room temperature = 27±1, Outdoor temperature =

35±1

o Mode = Heat, Set point = 30, Room temperature = 20±1, Outdoor temperature =

7±1

• Manually when entering diagnostics with the following settings:

•

o Mode = Cool, Set point = 16

o Mode = Heat, Set point = 30

11.11.2 Unit Operation in Test Mode

In test mode, the unit will operate in ﬁxed settings according to the indoor fan speed setting:

Indoor Fan Speed Setting Unit Setting

Low Minimum Capacity Setting

High Nominal Capacity Setting

Auto Maximum Capacity Setting

During test mode, protections are disabled, except for stop compressor status.

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Delta PG-35 Service Manual Page 56