Delta PG-35 User Manual download pdf (Page 42)

11-14

CONTROL SYSTEM

SM DELTAZ 1-E.0 GB

11.12 Test Mode

11.12.1 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

11.12.2 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.

11.13 SW Parameters

11.13.1 Indoor Units SW Parameters

11.13.1.1 General Parameters for All Models:

Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat

mode (ICT):

ICTST Speed ICT to stop indoor fan 25

ICTVLSpeed ICT to go down to very low speed 28

ICTLSpeed ICT to start in very low speed 30

ICTHSpeed ICT to start in increase speed from very low 32

ICTTSpeed ICT to enable Turbo fan speed 40

Parameters for defrost protection:

ICTDef1 ICT to go back to normal 8

ICTDef2 ICT to ‘stop rise’ when ICT decrease 6

ICTDef3 ICT to ‘stop rise’ when ICT is stable 4

ICTDef4 ICT to ‘Hz Down’ when ICT decrease 2

ICTDef5 ICT to ‘Hz Down’ when ICT is stable 0

ICTDef6 ICT to stop compressor -2

Parameters for indoor coil over heating protection:

ICTOH1 ICT to go back to normal 45

ICTOH2 ICT to ‘stop rise’ when ICT increase 48

ICTOH3 ICT to ‘stop rise’ when ICT is stable 52

ICTOH4 ICT to ‘Hz Down’ when ICT increase 55

ICTOH5 ICT to ‘Hz Down’ when ICT is stable 60

ICTOH6 ICT to stop compressor 62

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Delta PG-35 User Manual Page 42

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