Skytech: 3301-FSCRF
REV. 8-21-20 Page 6
FK-ESC-RF RECEIVER
Fig. 18
FK-ESC-RF speed control.
The FK-ESC-RF is a fan speed control with a built-in
remote control receiver for hearth appliances using an
existing or new fans/blowers. The FK-ESC-RF (fan speed
control) adjusts the air output of the fan/blower. The speed
control will turn ON the fan automatically 7-minutes after
the main flame has been turned ON and turn the fan OFF
12-minutes after the main flame has been turned OFF.
There are five settings, Hi, Medium Hi, Medium Lo, Lo and
OFF. You can manually adjust the speed by pressing the
FAN SPEED button. The FK-ESC-RF will remember the
last setting used and remain on that setting until changed.
Electronic
Fan Speed Control
HI
MH
ML
LO
OFF
FAN
SPEED
TEST
FAN TURNS ON TO
SELECTED SPEED
7 MINUTES AFTER MAIN
FLAME IS TURNED ON
FAN TURNS OFF
12 MINUTES AFTER MAIN
FLAME IS TURNED OFF
TEST WILL TURN FAN
ON HIGH AS LONG AS
BUTTON IS PRESSED
2 - 1/4” Female
Connectors
2- 1/4” Piggyback Connectors
1- Polarized Plug
Fan Hot
Fan Netur
al
DR
Y-CONT
ACT
T
O V
AL
VE/CONTROL
Power must be provided through an approved factory installed junction box from the hearth manufacturer.
Step 1:
Prepare the FK-ESC-RF control by connecting the ACF10 (supplied) black and white wires into the matching
black and white wires of FK-ESC-RF. Secure the ground in a suitable location (See Fig. 19).
Step 2:
TURN OFF 120VAC POWER SOURCE
then
unplug the existing fan and plug it into the ACF10 and plug the
FK-ESC-RF polarized plug into the outlet originally use by the fan.
Note
: If installation is new, plug FK-ESC-RF into an
approved 120VAC outlet or see additional POWER SOURCE INFORMATION on page 8.
Step 3:
Connect the two dry contact piggyback connectors to the TH &TH/TP terminals of the gas valve (See Fig. 19) If
you are connecting to a electronic gas valve system see Fig. 20, and see notes below the figure drawing.
Fig. 19
Millivolt Wiring Diagram
Electronic
Fan Speed Control
HI
MH
ML
LO
OFF
FAN
SPEED
TEST
FAN TURNS ON TO
SELECTED SPEED
7 MINUTES AFTER MAIN
FLAME IS TURNED ON
FAN TURNS OFF
12 MINUTES AFTER MAIN
FLAME IS TURNED OFF
TEST WILL TURN FAN
ON HIGH AS LONG AS
BUTTON IS PRESSED
120VAC
Power
Source
TH
TP
TH
TP
Millivolt Valve
Terminal
Thermopile
Fan
FK-ESC
Ground
(green)
ACF10
Fan Netural
(white)
Fan Hot
(Black)
Dry Contact
Dry Contact
Note:
The dry contact wires are not polarity sensitive.
Fig. 20
IPI Wiring Diagram
ELECTRONIC MODULE
TR
TH
FK-ESC-RF
Neutral Wire
24VAC
Hot Wire
120VAC
110/24VAC
Transformer
Electronic
Fan Speed Control
HI
MH
ML
LO
OFF
FAN
SPEED
TEST
FAN TURNS ON TO
SELECTED SPEED
7 MINUTES AFTER MAIN
FLAME IS TURNED ON
FAN TURNS OFF
12 MINUTES AFTER MAIN
FLAME IS TURNED OFF
TEST WILL TURN FAN
ON HIGH AS LONG AS
BUTTON IS PRESSED
Fan Wires
Figure 20 shows one method to wire the FK-ESC-RF.
Refer to the installation instruction of your fireplace model
for specific wiring for electronic or intermittent pilot
igniton (IPI)systems. Some systems use two brown wires
to connect a dry contact switch other models may specify a
different method. Ensure you wire the FK-ESC-RFcorrectly
before using.
