York DPC-1 User Manual download pdf (Page 6)

S3

S1

LP

S

2

Compressor

Eco

FA

RA

SA

S5

HP

RH

Th

S8

S9

S4

∆P

S6

PE

FT

Gas

Electrical heater

Hot water control

S7

MSTS

ASTS

MSTS

ASTS

4 way valve

AQ

AQ

Cooling

&

Defrost

Heating

EA

ROOFTOP principle :

More exible than ever

MSTS = Manual safety thermal switch

ASTS = Automatic safety thermal switch

S1 = Suction probe

S2 = Discharge probe

S3 = Liquid probe

S4 = Outdoor air probe

S5 = Supply air probe (only on rooftop)

S6 = Return air probe

(with economizer accessory)

S7 = Inlet water sensor

S8 = Ambient sensor

S10 = Duct sensor

Th = Thermostat

FA = Fresh air

RA = Return air

SA = Supply air

EA = Exhaust air

Eco = Economizer or motorized air damper

AQ = Air quality sensor

SD = Smoke detector (for several units)

FT = Fire detection thermostat

PE = Power exhaust

∆P = Filter dirty switch

RH = Rain hood

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