fAf
~~
Ll (HOT) L2 2-WIRE
R841C
24
V
\
THERMOSTAT
BLUE RED
@
ELEcTRIc
o
BLACK

\ll

HEATER
NO.
1
1
e
J
RE515TANCE
RED HEATER
*
TRANSFORMER
r-%
R841D RELAV
ACK
RED
WHITE
.
LOAD
R841D RELAY
. . . .
~
---b
..
W,FI.
LOW VOLTAGE
THERMOSTAT

I

2.WIRE
LOW VOLTAGE
THERMOSTAT
m
A
RED
1+
WHITE
(>
LOAD
2.WIRE
R841D RELAY Low VOLTAGE
●
THERMOSTAT
4BLACK RED
A
1
(
)
—
qED
—LOAD ,
“,,0.
J’J
PC3WERS”PPLY. PROVIDEA DI*CONNECTMEANS
TO
S,
M”LTANEO”,LY
DE-ENERGIZE ALL VOLTAGE SOURCES. PROVIDE OVERLOAD PROTECTION
AS REQUIRED,
,,.,
~
POWER
S”PPL”.
PROVIDE DISCONNECT MEANSANI)OVERLOAD
PRO.
TECTION AS REQuIRED,
,,,.
.FIG. 6–TWO OR MORE R841C RELAYS CONNECT- FIG. 8–CONNECTIONS FOR FOUR R841D RELAYSED TO ONE THERMOSTAT SO THEY OP-ERATE IN SEQUENCE ABOUT ONE MINUTEAPART. THIS REDUCES THE INITIAL LINELOAD ON LARGE KILOWATT iNSTAL-LATIONS. SET THE THERMOSTAT HEATAND THERMOSTATS USED WITH ONETRANSFORMER. SET EACH THERMOSTATHEAT ANTICIPATOR AT 0.2 A.ANTICIPATOR AT 0.2A.
E
IUNCTION BOX
4~
D
n
L2
~
>AO
J?%
A
4“
(H:T)~
w
(
z
)
LJ
REMOTE
=24V
~
TRANSFORMER
RED
BLACK
R841
D
RED
n
WHITE
-1+
u
2.WIRE
DROPPING
LOW VOLTAGE
RE515ToR
THERMOSTAT
A
POWER S”PPLY, PROVIDE DISCONNECT MEAN, AND OVERLOAD ,,a,
PROTECTION
AS
REQuIRED.
IJ
~
Pow,,
5LIW’L”
PROV,CIEC)ISCONNECT
MEANS AND OV,I?LCIAD
PROTECTION AS REQUIRED.
..,,
FIG. 9–CONNECTIONS FOR TWO R841D RELAYSUSED WITH ONE TRANSFORMER ANDTHERMOSTAT. SET THERMOSTAT HEATANTICIPATOR AT 0.4 A.FIG. 7–R841D INTERNAL SCHEMATIC AND CON-NECTION DIAGRAM FOR ONE RELAY.560-2004–1