Operation - Honeywell Aquastat L4006 Installation Manual

Installation Guide
WIRING
LINE VOLTAGE
CONTROL CIRCUIT
L4006
L1
(HOT)
1
L2
LOW VOLTAGE
CONTROL CIRCUIT
L4006
L1
(HOT)
1
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS
1
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 26 Typical systems with 120 volt electric heat
primaries. Use with L4006A,B; L6008A.

OPERATION

OPERATION
For proper selection of settings, follow the boiler
manufacturer recommendations.
High Limit Controller
1
R-B terminals provide high limit switching function
(contacts open at set point on temperature rise).
(See Figures 30 and 31). R-B terminals shut off
burner if water temperature exceeds high limit set-
ting. Burner restarts when temperature drops to
high limit setting, less differential.
NOTE: On manual reset models, the reset button
on the front of the case must be pushed
in to allow the burner to operate after a
high limit shutdown.
HEATING LOAD
NO. 1
L6008G
W W
HEATING LOAD
B B
NO. 2
R R
2 1
JUMPER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
1
PROTECTION AS REQUIRED.
Fig. 28. Typical oil burner installation using L4008G. Use
with L4006A,B; L6008A.
60-2104—01
LINE VOLT
LOAD
THERMOSTAT
LOW VOLTAGE
THERMOSTAT
LOAD
1K
ELECTRIC
HEAT RELAY
M1155B
L2
1
L1
(HOT)
M8968C
MILLIVOLTAGE
THERMOSTAT
SAFETY
SHUTOFF
PILOTSTAT¨
POWER UNIT
Fig. 27. Typical Powerpile System wiring diagram. Use
with L4006A,B; L6008A.
LEFT SWITCH
TEMPERATURE DIFFERENTIAL
RISE
RIGHT SWITCH
SETPOINT
DIFFERENTIAL
(ADJUSTABLE)
1
DIFFERENCE BETWEEN THE TEMPERATURES AT WHICH THE
TWO SWITCHES MAKE R-W. ADJUSTABLE FROM 3°F TO 10°F
(1.7°C TO 5.6°C) ON STANDARD MODELS, OR FROM 3.6°F TO 12°F
(2.0°C TO 6.7°C); 55°F TO 175°F (13°C TO 79°C) MODELS.
2
TWO SPDT SWITCHES OPERATE IN SEQUENCE. EACH SWITCH
DIFFERENTIAL IS FIXED AT APPROXIMATELY 3°F (1.7°C) ON
STANDARD MODELS, OR AT 3.6°F (2.0°C); 55°F TO 175°F (13°C TO
79°C) MODELS.
Fig. 29. Operation of L6008G. Use with L4006A,B;
14
L4006
HIGH LIMIT
CONTROLLER
MILLIVOLTAGE
VALVE OPERATOR
PILOT
OPERATOR
BURNER
COIL
POWER UNIT COIL M1156B
BREAKS R-B
MAKES R-W
ON RISE
BREAKS R-W
2
MAKES R-B
ON FALL
INTERSTAGE
DIFFERENTIAL
1
BREAKS R-B
MAKES R-W
ON RISE
2 BREAKS R-W
MAKES R-B
ON FALL
M2999C
L6008A.