Fig
6

l404

with

a

low

voltage relay

LOW
VOLTAGE
RELAY
24
VOLT
THERMOSTAT
L1
HOT
POWER
1
SUPPLY
a
L2
LOAD
PROVIDE
DISCONNECT
MEANS
AND
OVERLOAD
PROTECTION
AS
REQUIRED
M8940
Fig

7

l404F

l604A
Oump
r

installed

used

as
a

high

limit with

an

alarm

circuit

SPOT
CONTROUER
LOW
UMfT
Ll
HOT
POWER
SUP
PLY
12
FlAME
SAFEGUARD
CONTROL
MOTOR
OR
OTHER
LOAD
PROVIDe
DISCONNEct
MEANS
AND
OVERLOAD
PROTECTION
AS
REQUIRED
BREAKS
R
TO
W
AND
MAKES
R
TO
B
WHEN
PRESSURE
FALLS
TO
SETPOINT
MINUS
DIFFERENTIAL
MB937
L404A
D
F
L604A
L
M
INSTALLATION
Fig

8

l404F l604A

with

jumper
installed
or

l604M

used

as
a

low

limit with

an

alarm

circuit

SPOT
CONTROUER
HIGH
UMIT
Ll
HOT
POWER
SUPPLY

Lb

12
FlAME
SAFEGUARD
CONTROl
MOTOR
OR
OTHER
LOAD
ALARM
PROVIDE
DISCONNECT
MEANB
AND
OVERLOAD
PROTECTION
AS
REQUIRED
BREAKS
R
TO
B
AND
MAKES
R
TO
W
WHEN
PRESSURE
RISES
TO
SETPOINT
M8938
Fig

9

L404F

or

L604

wlth

jumper

installed

controlling

an

M644B

motor

SPOT
CONTROLLER
UNEVOLTAGE
lWO
POsmON
MOTOR
CLOSED
LOW
ARE
W
WHITE
OPEN
HIGH
FIRE
Ll
HOT
POWER
SUPPLY

ill

L2
BLACK
BLACK
MB44B
PROVIDE
DISCONNECT

MeANS

AND
OVERLOAD
PROTECTION
AS
REQUIRED
BREAKS
R
TO
B
AND
MAKES
R
TO
W
WHEN
PRESSURE
RISES
TO
SETPOINT
M8939