Wiring Diagram - Zehnder Rittling VS Series Installation, Operation And Maintenance Manual

Wiring diagram

208-230V, standard and high static
Unit
Power Supply
208-230V/60HZ/1PH
G
L2 L1
Note 4
Optional
Disconnect
Switch
See Note 6
Transformer
Note 3
Typical 24VAC
2-Stage stat
24VAC
+
(NETA)
Connect to
-
network
(NETB)
+
(A)
-
(B)
Optional
BACnet or
Lonworks card
Legend
Factory low voltage wiring
Factory high voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
Internal PCB connection
Quick connect terminal
Screw terminal
Notes
1. Used for optional communicating thermostat.
2. Cut JP1 or JP2 for dry contact output on accessory relay 1 and 2.
3. If a single stage thermostat is used place a jumper wire between
Y1 and Y2 at P1 terminal.
Black
Blue Capacitor Blue
Yellow
T2
T1
CC
L2 L1
CAP
C
Blue
24V
Yellow
P1
RC
Red
R
R
White
C
C
Yellow
Y1
Y1
Blue
Y2
Y2
Black
O
O
Brown
G
G
AL
AL
W
Field
P2
installed
wiring
NSB
ES
Note 2
Zone valve
R
R
NO1
ACCESSORY
NC1
RELAY 1 Note 2
Note 5 COM
NO2
ACCESSORY
NC2
RELAY 2
COM
P3
+ J1
-
3 2
COM
COM 2
P4
Note 1
COM 1
CC Compressor contactor
BR1 Fan relay speed 1
BR2 Fan relay speed 2
HP High pressure switch
LP Low pressure switch
FP1 Freeze protection water side
FP2 Freeze protection air side
CO Condensate overflow
RV Reversing valve
DAT Discharge air temperature
LWT Leaving water temperature
Compressor
S C
R
White
Orange
R
BR1
SW1
Off/On
1
Test/Normal
2
FP1=GLYCOL / WATER
3
Tstat=Comm/24VAC
4
RV=Cooling OFF/ON
5
Com2/com1
6
Com2 modbus address
7
Com2 modbus address
8
Com2 modbus address
Power
LD 1
LD 2
JP1
LD 3
LD 4
JP2
1
4. If disconnect option is not installed connect line power to the L1
and L2 lugs on the compressor contactor.
5. Accessory relays 24VAC max. Activated by compressor output.
6. All 208-230V units are factory wired for 208V operation. If supplier
voltage is 230V, installer must rewire transformer.
Blower speed wiring
Unit
Orange Brown Blue
size
09 Low High
12 Low
15 Low High
18 Low
24 Low High
30 Low High
36 Low
PSC
Blower
Motor
Grn
L2 L M
See blower
speed wiring
chart for wire
colors
Orange
BR2
Black
P6
Black
Black
Black
White
White
Yellow
Yellow
CCG
Black
CC
CC
Black
P5
Black
Black
Red
Red
Orange
Orange
Brown
Relay coil
Capacitor
High pressure switch
Low pressure switch
Temperature thermistor
Condensate switch
Relay contacts
Wiring diagrams
Red
High
High
High
Gry
Yel
Cap
H
LWT
T
DAT
T
FP1
T
FP2
T
HP
LP
RV
CO1
35