Hearth and Home Technologies RCTS-MLT User Manual

RCTS-MLT Remote Control Kits

-For use with SIT Millivolt Valves only-

- Installation and Operating Instructions -

INTRODUCTION

The remote control system can be operated thermostatically
or manually from the transmitter. The system operates on
radio frequencies (RF) within a 20 foot range. It can be
used with Standing Pilot systems only.

This remote control kit has a hand held transmitter that
can be used as a remote on/off or as a thermostat. The
transmitter display shows the current room temperature,
target temperature, timer setting, on/off status, low battery
indicator, current time, burner/valve operation and fan
operation. Electrical ratings for the receiver are: 1 10 VAC,
60 Hz, 6 W.

If pertinent, see additional fi replace wiring diagrams on
pages 9 & 10.

INSTALLATION PRECAUTIONS

NOTE: Installation of this kit MUST be done by a qualifi ed

service technician.

This remote control kit is tested and safe when installed in
accordance with this installation manual.

It is the responsibility of the installer to read all instructions
before starting installation and to follow these instructions
carefully during installation. Modifi cation of the remote
control system or any of its components will void the
warranty and may cause a fi re hazard.

NOTE: A manometer MUST be used to set the manifold
pressure on the gas valve.

WARNING

EXPLOSION RISK!

• Incorrect setting on regulator tower may
cause delayed ignition.

• The regulator tower is preset for NG.

LP installation will require resetting the tower.

NOTE: The factory installed junction box in the gas fi replace
must be wired with 110 VAC before installing this kit. See
Installation Instructions section.

CAUTION: All wiring should be done by a qualifi ed electrician
and shall be in compliance with local codes and with the
National Electric Code ANSI/NFPA No. 70-current (in the
United States), or with the current CSA C22.1 Canadian
Electric Code (in Canada).

WARNING

• Wire 110V to electrical junction box.

• Do NOT wire 110V to valve.

• Do NOT wire 110V to wall switch.

• Incorrect wiring will damage millivolt
valves.

FCC REQUIREMENTS

WARNING: CHANGES OR MODIFICATIONS TO
THIS UNIT NOT EXPRESSLY APPROVED BY THE
P ARTY RESPONSIBLE FOR COMPLIANCE COULD
VOID THE USER’S AUTHORITY T O OPERA TE THE
EQUIPMENT.

NOTE: This equipment has been tested and found to

comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or
more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and
receiver.

- Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.

- Consult the dealer or an experienced radio TV technician
for help.

Printed in U.S.A. Copyright 2007
Hearth & Home Technologies Inc.
20802 Kensington Boulevard, Lakeville, MN 55044

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100-920B 8/07

Canadian Equipment Requirements

This digital apparatus does not exceed the (Class A/Class
B)* limits for radio noise emissions from digital apparatus
set out in the Radio Interference Regulations of the
Canadian Department of Communications. Le present
appareil numerique n’emet pas de bruits radioelectriques
depassant les limites applicables aux appareils numeriques
(de la class A/de la class B)* prescrites dans le Reglement
sur le brouillage radioelectrique edicte par le ministere des
Communications du Canada.

This device complies with RSS-210 of Industry and Science
Canada. Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference, including interference
that may cause undesired operation of the device.

WARNING

Shock hazard.

• Leave electrical power off at this time.

• Do not restore power until the remote control
system is completely installed.

REMOTE RECEIVER

CAUTION

• Damage to receiver possible from elevated temperatures.

• The remote receiver should be positioned close to front
in right or left corner where ambient temperatures do not
exceed 170º F.

INSTALLATION INSTRUCTIONS

Installing Electrical Service to the Junction Box

WARNING

Shock hazard.

• Turn electrical power off at the circuit before
starting work.

NOTE: Some appliances do not have a cover plate. In­stead, there is a hole through which the Romex clamp is
attached to the outer wrap.

1. Remove the electrical cover plate from the lower side
of the fi replace. Remove the knock-out from the plate
and attach the Romex clamp (screws to the outside).
See Figure 1.

REMOTE

RECEIVER

The remote receiver is powered by 110-120VAC. It plugs
into a standard polarized duplex receptacle.

Locating Receiver and Operating Functions

This remote receiver can be positioned under the fi rebox
in the control compartment of the fi replace if ambient tem-
peratures do not exceed 1700 F. This system is designed
to control the following components:

Wire Colors

• Gas Valve - Millivolt .................................................Red

• Fan/Blower - 110 VAC .............................Plug from Fan

• Flame Controller - HI/LO solenoid .....................Orange

RECEIVER WIRING INSTRUCTIONS

Incorrect wiring connections WILL cause damage to the
gas valve or electronic module operating the gas appliance
and may also damage the remote receiver.

Wiring Flame Function

Connect the remote receiver by connecting the two red
wires leading from the remote receiver to the red and
brown remote wires labeled “FOR USE WITH REMOTE
OR WALL SWITCH ONL Y”. See Figure 2 or alternate wiring
diagrams on page 10.

RED

VALVE

TH
TP

TH

TP

ON/OFF
SWITCH REMOTE SWITCH

RED

BROWN

Figure 1

PIGTAIL

WALL

SWITCH

RED

2. Feed the electrical service wires through the Romex
clamp and secure the wires to the clamp.

3. Using the wire nuts provided, connect the service wires to
the junction box. The black wires to the black service wire,
the white wires to the white service wire, and the service
ground wire to the ground stud of the junction box.

4. Reattach the cover plate to the outside of the fi replace.

2

ON/OFF
SWITCH REMOTE SWITCH

BROWN

Figure 2.

PIGTAIL

RED

WALL

SWITCH

REMOTE

RECEIVER

RED

RED

VALVE

TH
TP

TH

TP

Alternative Wiring for units with a wall switch

Disconnect the wall switch wire from the TH terminal on
the valve and connect this wire to male connector supplied
on the receiver. Connect remaining female connector from
receiver to the TH terminal on the valve.

Adding Optional Fan/Blower

Plug 2-prong fan cord directly into the 3 prong polarized
plug on the back of the receiver (see Figure 3). This
receptacle output is 110/120 VAC, 3 AMP.

A

B

(Receptacle on back)

LEARN

REMOTE

RECEIVER

Figure 3. Adding Fan/Blower

110/120 VAC, 3A

Line cord
from fan

NOTE: All steps required for installation of the fl ame controller
MUST be done by a qualifi ed gas service technician.

Installing Regulator Tower

NOTE: A manometer MUST be used to set the manifold

pressure on the gas valve.

1. Using a Torx T20, or slotted screwdriver, remove and
discard the three pressure regulator mounting screws
(A), pressure regulator tower (B), and the spring and
diaphragm assembly (C) See Figure 5.

2. Ensure the rubber gasket (D), which is pre-fi tted as
part of assembly (E), is properly positioned and install
the new pressure regulator tower using the supplied
screws (F). Tighten screws securely (Reference torque
= 25 lb-in.) and remove cover screw (G).

3. Insert the correct plunger into the fl ame control
solenoid (BLUE = NATURAL GAS, RED = PROPANE).
See Figure 4.

C

G

E

F

D

JAM NUT

FLAME CONTROL

SOLENOID

Figure 4. Plunger insertion

PLUNGER

REGULATOR

TOWER

Figure 5. Installing Regulator Tower

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