Wiring Diagrams - Zehnder Rittling HP Series Installation, Operation And Maintenance Manual

Wiring diagram
Unit
Power Supply
208-230V/60HZ/1PH
G
L2 L1
T2
Note 4
Optional CC
Disconnect
L2
Switch
See Note 6
Transformer
24V
Note 3
Typical 24VAC
2-Stage stat
Zone valve
Note 5
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 accessory
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
T1
L1
CAP
C
Blue
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
R
R
JP1
NO1
ACCESSORY
NC1
RELAY 1 Note 2
COM
JP2
NO2
ACCESSORY
NC2
RELAY 2
COM
P3
+ J1
-
3 1
2
COM
COM 2
P4
Note 1
COM 1
CC Compressor contactor
BR1 Fan enable relay
BR2 Fan speed relay
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
Blower speed
Unit size
009
012
015
018
024
030
036
042
052
Compressor
062
072
S C
R
White
Orange
R
BR1
Orange
BR2
SW1
Off/On
1
Test/Normal
2
FP1=Gylcol / 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
P6
Power
LD 1
LD 2
LD 3
LD 4
CCG
CC
P5
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 supply
voltage is 230V, installer must rewire transformer.
208-230V/60/1
Brown Black Blue Red
Low High
Low High
Low High
Low High
Low High
Low High
Low High
Low High
Low High
Low High
Low High
PSC
Blower
Gry
Motor
Grn
Yel
Cap
L2 L M H
See blower
speed wiring
chart for wire
colors
Black
LWT
Black
T
Black
DAT
Black
T
White
FP1
White
T
Yellow
FP2
Yellow
T
Black
CC
Black
Black
HP
Black
Red
LP
Red
Orange
RV
Orange
Brown
CO1
Relay coil
Capacitor
High pressure switch
Low pressure switch
Temperature thermistor
Condensate switch
Relay contacts
Electrical 21