Figure 20: Low Voltage Brooder Control Wiring - Roberts Gorden Energytube EM-115 Nstallation, Operation And Service Manual

EM-S I , O
ERIES NSTALLATION PERATION AND
10.1.2 Brooder Control Wiring
The heater outputs on the brooder controller will act
as the ON/OFF switch in the control circuit. The R
and W terminals (T24 and T25) on the heater control
board are wired to the heater output terminal on the
brooder controller. If the brooder controller outputs
provide line voltage output, a contactor must be
installed between the brooder controller and the
heater R and W terminals (T24 and T25). Power
must not be supplied to the "thermostat" (R and W)
circuit. The brooder controller must only provide the
opening and closing (dry contact) of the "thermostat"
(R and W) circuit. The heater that is wired to the
brooder output terminals will be designated as a
"central" heater. If there are multiple heaters in a
heating zone, the control wiring for all of the other
heaters in the zone will be wired in series (daisy-
chain) from the "central" heater's "firing rate out"
terminals (T30 and T31). See Figure 20. The
jumpers on the J10 pin block on the heater control
board must set by the installer as shown in Figure 20.
The "central" heater will have both jumpers on the
J10 pin

FIGURE 20: Low Voltage Brooder Control Wiring

CENTRAL HEATER CONTROL
Brooder Controller
THERMOSTAT
Output Terminal
T24
Connection
(Dry contact only,
the controller must
T25
not provide any power
to the R and W circuit.)
T26
T27
T13
T14
T15
T16
Do not run
T17
low voltage
control wiring
T18
in conduit with
line voltage wiring.
T19
T28
T29
T30
T31
MODULATION CONTROL WIRING
TO SATELLITE HEATERS
40 of 71
S M
ERVICE ANUAL
R
W
J10 JUMPER POSITION
SHOWS "CENTRAL"
DESIGNATION AND
"THERMOSTAT"
CONTROL METHOD.
A B
J10
block on the right-most pins as shown if Figure 20.
The satellite heaters will have the J10 pin jumpers set
on the left-most pins.
10.1.3 Operation
During the heater operation, the heater will
automatically modulate based on the brooder
controller's ON/OFF output timing and history using
an algorithm programmed into the heater's control
board. The "central" heater will determine the
appropriate heater burn rate and any satellite heaters
will modulate to the same burn rate based on the
central heater's commands.
NOTE: During the cycling of the heaters, the heaters
may still be operating even though the brooder
controller may not be calling for heat. This is normal
operation of the modulating heater. After satisfying
the required temperature, the heater will continue to
run at a lower burn rate to maintain the temperature
as close to the temperature setpoint as possible. The
heater will completely turn off once it modulates the
burn rate to the lowest setting.
SATELLITE HEATER CONTROL
*OPTIONAL
SWITCH
THERMOSTAT
T24
R
T25
W
T26
T27
T13
T14
T15
T16
T17
T18
T19
T28
T29
T30
T31
J10 JUMPER POSITION
SHOWS "SATELLITE" DESIGNATION.
A B
J10
MODULATION CONTROL WIRING
TO ADDITIONAL SATELLITE
HEATER CONTROL TERMINALS
T28 AND T29.