Daikin EUWA/Y5-30HB/C(Z) - Overview of Inputs and Outputs of EUWA;Y5-10 HB(Z)

Overview of Inputs and Outputs ESIE98–06A
3–4 Part 3 – Troubleshooting
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1.2 Overview of Inputs and Outputs of EUWA/Y5-10HB(Z)
Inputs/outputs The following table describes the relation between the wiring diagram symbols and the wiring
connections of chiller types EUWA/Y5-10HB(Z) and also the malfunction (or program) code. We refer
to the wiring diagram and the PCB layout to find the exact location on both wiring diagram and switch
box.
Type Detail
Wiring
diagram
symbol
Wiring con-
nection
terminal
Malfunction
(or program)
code
Description
analog input sensor R3T X1/B1-GND e1 - a1 inlet water temperature sensor
R4T X1/B2-GND e2 (r6) outlet water temperature sensor
R5T X1/B3-GND e3 (r8) coil temperature sensor
digital input transducer R1P X1/ALL h1 / fl reverse phase protector
S11L+S10L X1/ID1-GND h1 flow switch pump contact
Q11F X1/ID4-GND f1 evap. thermostat
K1A X1/ID1-GND h1 auxiliary relay for high pressure
K4S X1/ID3-GND c1 / h1 overcurrent relay+hp=discharge protector
S16T X1/ID4-GND l1 evaporating temperature thermostat
control
contacts
S7S (field) X1/ID2-GND (h6) switch for remote cool/heat selection
S9S (field) X1/ID5-GND (h7) switch for remote start/stop
S10L (field) X1/ID1-GND (fl)flow switch
S11L (field) 75-77 — contact that closes if the pump is working
digital out-
put
K1M X2C1/2-NO1 — compressor contactor
YRV1 X2C3/4-NO4 — 4 way valve
KP (field) X2C3/4-NO3 — pump contactor
H1P (field) X2C5-NO5 — indication lamp alarm