GeneralAire EDMK4 Elite Steam - Manual (Page 17)

Elite Steam +030222075 Rev. 3.5 – July 2012 17
3.7 Wiring Connections:
Terminals Functions Electrical specifications
L1-L2 -GROUND Power supply and Ground connections Power supply 110 VAC 1-phase 50-60Hz 1.86kW or 230VAC
1-phase 50-60Hz 4.05kW
KEY Programming port Connecting to Programming port or supervisor
AB-AB Remote enabling input Imposes an external NO contact ; Rmax=300 Ohm; Vmax=33
Vdc; Imax=6mAdc; humidifier enabled = contact closed
IN-GND Control signal input If programmed 0...10V:
Input impedance 10 kohm
If programmed ON-OFF:
Vmax 33Vdc
Imax = 5mA Rmax = 300 Ohm
NC-C-NO NC alarm contact
Common alarm contact
NO alarm contact
250V; 8Amp max with resistive load; 4 Amp max with inductive
load
NO-C External fan relay 250V; 8Amp max with resistive load; 4 Amp max with inductive
load
24GND Power for external humidistat Power supply for external humidistat 24 Vac; 2 Watt
3.7.1 Wiring diagram of controller
KEY FOR PROGRAMMING PORT :
DP = DRAIN PUMP
DT = DRAIN TEMPERING VALVE
HL = HIGH-LEVEL SENSOR
EVF = FILL VALVE
CONNECTED
TO GROUND
POWER SUPPLY
(110VAC 1-PHASE 50-60 HZ
OR
230 VAC 1-PHASE 50-60HZ)
24VAC FOR
EXTERNAL
HUMIDISTATS
EXTERNAL DUCT FAN
ALARM
HUMIDISTAT
AIR PRESSURE SWITCH
PROGRAMMING
PORT
IN
G
N
D
AB
AB
N
1
G
N
D
N2
N
O
C
N
C
C
N
O
24
Va
c
G
ND
KE
YB
O
AR
D
EX
T
FA
N
AL
AR
M
KE
Y
HL
N
EVF
DP
N
F
INT
FAN
E1
E2
L1 L2
8
2
4
EMBEDDED
BLOWER
ON-OFF
BOTTON
6
EXTERNAL FUSED
DISCONNECT TO BE
INSTALLED (NOT
SUPPLIED) RESPECT
LOCAL CODES
HL
STEAM
BOILER UNIT
DP
DT EVF
Fig. 3.z.1