156
MAC 6000 Hydronic Heater
Riello Burner
2106 East Indiana Ave., Bismarck, ND 58504 U.S.A. • www.macheaters.com • +1-800-272-4604
2453
5
GB
ELECTRICAL CONNECTIONS
It is advisable to leave the control box off the sub-base while
completing the electrical connections to the burner.
1)
Wire access hole (Use BX electrical connector)
2)
Earth ground conductor terminal (GREEN WIRE)
3)
Hot conductor terminal (BLACK WIRE)
4)
Neutral conductor terminal (WHITE WIRE)
5)
Strain relief clamp
The burner may be controlled using either a DIRECT LINE
VOLTAGE control circuit (120V AC 60 cycle) OR a LOW VOLTAGE thermostat input (T-T).
Using the appropriate diagram below, make electrical connections to burner. All wiring must be done in accordance with
existing electrical codes, both national and local.
When all electrical connections have been made, the control box may be put back in place on the sub-base.
APPLICATION FIELD WIRING
WARNING:
The hot (black) wire must be connected to the L terminal and the
neutral (white) wire must be connected to the N terminal or the
primary safety control will be damaged.
Do not connect wither wire to the terminal marked
.
WARNING: DO NOT activate burner until proper oil line connections have been made, or failure of the pump
shaft seal may occur.
S7436
T
T
J
T
T
1
2
3
4
5
6
7
8
9
AC
120 V
AC
120 V
D8794
FACTORY
WIRED
SUB-BASE
E
A
R
TH
G
R
O
U
N
D
(G
R
EE
N
)
NEU
TR
AL (
W
H
ITE)
HOT
LINE (BLACK)
24V OPERATING
N
L
LINE SAFETY
SWITCH
OPERATING
LIMIT SWITCH
SAFETY
LIMIT SWITCH
FUSE 15A
N
L
N
L
E
A
R
TH
G
R
O
U
N
D
(G
R
EE
N
)
NEU
TR
AL (
W
H
ITE)
HOT
LINE (BLACK)
FUSE 15A
LINE SAFETY
SWITCH
SAFETY
LIMIT SWITCH
LIMIT SWITCH
ON LEFT SIDE OF
THE CONTROL BOX
ON LEFT SIDE OF
THE CONTROL BOX
Bl
ue
Whi
te
Blac
k
Brown
Whi
te
Bl
ue
Brown
Black
CAPACITOR
MOTOR
COIL
Black
White
DIRECT LINE
LOW VOLTAGE
VOLTAGE
REMOTE SENSING OF
SAFETY LOCKOUT:
The SAFETY SWITCH in
the 530SE/C 24V CON-
TROL BOX is equipped
with a contact allowing re-
mote sensing of burner
lockout.
The electrical connection
is made at terminal 4 (
●
)
on the SUB-BASE.
Should lockout occur the
530SE/C 24V CONTROL
BOX will supply a power
source of 120Vac to the
connection terminal.
The maximum allowable
current draw on this termi-
nal (4) is 1 Amp.
WARNING:
If a neutral or ground
lead is attached to this
terminal, the CONTROL
BOX on the burner will
be damaged should
lockout occur.
