iAIRE ultraDRY Series, Manual

Page: 26 / 38

N
T
T
S
SUCTION LINE
LIQUID LINE
HOT GAS LINE
FIELD
INST
ALLED
CHECK
VA
LV
E
E
C
B
A
R
J
K
P
G
M
ENTERING
AIR
(EA
T)
REHEAT COIL
T
DISCHARGE
AIR
(DAH)
H
LEA
VING
AIR
(LA
T)
NOT INST
ALLED IN SP
ACE CONTROL
UNITS
T
DISCHARGE
AIR
(DA
T)
T
Y1
Y2 Y3
Y4
W1 W2
W3
HEATING
ELECTRIC HEA
T
OR GAS HEA
T
(optional)
EV
AP
UNIT
VFD
SUPPL
Y
FA
N
DISCHARGE AIR
ENTERING
AIR
EA
DAMPER
(optional)
FIELD SUPPLIED PLUMBING ON SPLIT SYSTEMS ONLY REFGT FLOW DIRECTION FOR HEA
T OPERA
TION
REFGT FLOW DIRECTION FOR COOLING OPERA
TION
L
CONDENSING UNIT
A
- FILTER DRIER
B - LIQUID LINE RECIEVER C - CONDENSER COIL D - MODULATING
CONDENSING
VALVE 1
FANCOIL
E - MODULATING
HOT GAS
VALVE 1
G - RAWAL
APR VALVE
H - SUCTION
ACCUMULA
TOR
J - LIQUD LINE BULB (NOT ON
APR-410-5)
K - EXTERNAL
EQUALIZER (APR-410-2
AND UP)
L - HOT GAS BULB (NOT ON
APR-410-5)
M - COMPRESSOR N - SHUT
OFF V
AL
VE
P - RA
W
AL
HIGH TEMPERA
TURE SWITCH
Q - LOW
-AMBIENT CONTROL
OPTION
R - F
ACT
OR
Y HIGH PRESSURE SWITCH
S - REVERSING V
AL
VE
T - F
ACT
OR
Y MAINTENANCE V
AL
VE
SAFETIES AT
LOW
SUCTION
PRESSURES
(LOW
LOAD)
THE
RA
W
AL
DEVICE
WILL
BYP
ASS
HOT
GAS
TO
THE
COMPRESSOR.
RA
W
AL
DEVICE
WILL
ALSO
INJECT
SOME
LIQUID
REFRIGERANT
INT
O
SUCTION LINE T
O
AVOID OVERHEA
TING THE COMPRESSOR DURING BYP
ASS. THIS WILL
ALSO PROLONG USE OF FIRST ST
AGE
AND IMPROVE DEHUMIDIFICA
TION.
N
*SPLIT SYSTEMS ONLY
H
D
RTU HP PIPING DIAGRAM
SCH-000 2 -P
REVISION: V5.0.0.1
iAIRE, LLC
iAIRE
OM manual
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