Rafe Controls 6400 INSTALLATION INSTRUCTIONS

Installation and Operating Instructions
RF-PT

SETPOINT

o

F

72.0

Increase

temperature

Switches between

Heat/Auto/Cool Functions

Application:

This thermostat is a battery operated Heating and Cooling Digital
Temperature Control. It is designed for water source Heat Pump,

PTAC, and PTHP systems with 1 or 2 fan speeds. This thermostat

operates from a single setpoint with automatic or manual changeover
from heating to cooling. There is built in programming to alter the
control characteristics to suit energy conservation needs.

Installation Notice:

This high performance digital thermostat is designed to provide many
years of superior comfort control when properly installed and maintained.
To achieve maximum performance, this device is designed to draw
room air into itself continuously. Reasonable care must therefore be
taken with regard to air quality at the time of installation as well as
during periods of normal use, see operating conditions below.

Operating Conditions:

The electronic mechanisms incorporated within this unit REQUIRE
operating conditions similar to other electronic devices intended for
INDOOR USE ONLY, such as would be acceptable for TV and similar
household appliances. Relative humidity must be less than 95% and
the atmosphere must be non-condensing. For operation in bathrooms,
shower or pool areas, outdoor entryways, greenhouses and similar
applications, order the RF-PTK. This product includes protection
for coastal/tropical application, therefore it is suitable for use in high
humidity environments. Air quality must be maintained FREE of heavy
dust or debris which may infiltrate the interior of this device. Installation
in any space which is unfinished or undergoing repainting or general
rehabilitation is also considered product abuse. This device should
be removed from service during any local construction activity.

Cleaning:

This device incorporates a high impact polycarbonate enclosure which
is easily cleaned with a dry cloth or vacuum brush. Occasional soiling
may be cleaned with a soft cloth lightly dampened with water and/or
mild cleaning solution. IN NO CASE should this device be directly
sprayed with or exposed to free flowing liquids, including water, which
could penetrate its interior.

FAILURE TO OBSERVE ANY OF THE ABOVE CONDITIONS OF USE
WILL COMPLETELY VOID THE SUPPLIER WARRANTY.

CAUTION

MAKE SURE UNIT IS PROPERLY CONNECTED. DAMAGE TO THE
DIGITAL CONTROL CAN BE CAUSED BY MISWIRING, WHICH WILL
VOID THE WARRANTY. FOR SAFETY REASONS ALWAYS USE
WIRE NUTS ON ALL WIRE CONNECTIONS!!!

AUTO

HEAT/AUTO/COOL

Selects

fan function

°F/°C

Decrease

temperature

Switches between

°F and °C

Specifications:
Temperature Monitor Range: 32.0°F to 99.9°F (0.0°C to 37.7°C)
Setpoint Range: 60.0°F to 85.0°F (15.5°C to 29.5°C)
*Setpoint Default: 72.0°F (22.0°C)
*Comfort Conditioning Limit Defaults: 65.0°F (18.5°C) cooling

Display Format: Liquid Crystal Display (LCD)
Sampling Rate: Every 5 seconds
Accuracy: ± 1°F (0.5°C)
Power Source: 2 ‘C’ Cell Batteries
Mode Select: Selectable: Heat/Auto/Cool
*Fan Control: Selectable: Auto cycle, Low, High
Heat/Cool Control: 1 Compressor, 1 Auxiliary Heat,

Programmable Reversing Valve

*Default Temperature Extreme Prevention Limits:

Maintains room temperature between 60.0°F and 85.0°F
(15.5°C and 29.5°C) when thermostat is in economy mode
*Fan Purge Timer: 30 seconds default
programmable 0 to 180 seconds

Anti-short Cycle: 3 minute hold in no call state at all times
*Cycle Rate: 6 cycles per hour

*Refer to field programming instructions

Installation:

This device should be installed and serviced by a qualified technician.
Junction box mounting is highly recommended.

1. Caution: Make sure that power has been disconnected.

2. All wiring must comply with applicable codes and ordinances.

3. A thorough check-out of the system should be made after

installation is complete.

4. If retrofitting old thermostat, remove old thermostat from the
junction box, carefully noting the wire connections on the old unit.
Record wire color and terminal legends in spaces provided below.

Old thermostat

wire function

Cable

wire color

24VAC Feed

Common

Auxiliary Heat

Compressor

Low Fan

High Fan

Reversing Valve

Disconnect old thermostat and remove any existing backplate or
mounting plate.

5. Install the mounting bracket to the

Mounting Bracket

junction box with the two long
mounting screws provided.
See mounting detail at right.

Note: If application involves a double

Screw: 6/32 x 3/4"

Standard
Junction
Box

ganged junction box, a backplate will
be required for a complete installation.
Please consult your supplier.

User Note: The top of this unit will become warm to the touch. This is a
normal operation. Internal heating is employed to continuously convect
air upward through the thermostat, thereby improving room air temperature
measurement. Direct conflict with a downward ceiling fan or system fan air
flow may result in false temperature reading. Locate thermostat to avoid
interference.

1

gnitaeh )C°5.92( F°0.58

e

24 VAC Feed
Common
Auxiliary Heat
Compressor
Low Fan
High Fan

RF Receiver

d

Re

Blac

Whi

Yellow

Gree

V

iole

O

rang

k

e

t

n

t

Reversing Valve

Thermostat - wireless

6. Connect the RF Receiver to the cable wires recorded in Step 6.

See document on connecting RF Receiver.

7. Turn power on.

BASIC FUNCTIONS

SETPOINT

ROOM

SYSTEM CHECK:

Check Low Fan Function:

Fan should turn on immediately after power is applied.
Auto mode only: Low fan will turn off after the first initial 3 minutes
or will remain on if the heat or cool symbol appears on the display.

Check High Fan Function:

Press and release the fan button until the fan indicator moves to
the high fan position.
High fan will turn on.

Check Heating:

Move the "°F/°C" slide switch to the opposite side and then back to
the desired scale.

The LCD will flash its legends and then the default setpoint.

Use the "up" button to adjust the setpoint until the heat symbol
begins to flash on the display.
The compressor will activate within 3 minutes.

Check Cooling:

Adjust Temperature Setpoint:

Press up button ( ) to raise the temperature (warmer)
Press down button ( ) to lower the temperature (cooler)

Select Fan Operation:

Press fan button ( ) to select the following fan functions*
HIGH - Continuous HIGH speed fan
LOW -Continuous LOW speed fan
AUTO - auto on/off with automatic speed change
ECONOMY
*fan function sequence with auto as the starting point

Change Scale Units:

Slide the °F/°C switch to the left to display °F
Slide the °F/°C switch to the right to display °C
When the °F/°C switch is invoked, the thermostat will reset and
display the default setpoint in the selected scale. The default
setpoint (unprogrammed) is 72.0°F or 22.0°C.

Cycle Timing: (Anti-short cycle protection)
3 minute (minimum) dwell time in no-call states
(both heat and cool).
1 minute (minimum) dwell time in call states
(both heat and cool).
Temperature is sampled every 5 seconds.

Move the "°F/°C" slide switch to the opposite side and then back to
the desired scale.
The LCD will flash its legends and then the default setpoint.

Press "down" button to adjust the setpoint until the cool symbol
flashes on the display.
The reversing valve will activate withing 3 minutes.
Within 15 seconds the compressor will turn on.

Function Test:

FAN SPEEDSYSTEM

Adjust setpoint as follows:

4°F (2°C) or more ABOVE room temperature

2°F to 4°F (1°C to 2°C) ABOVE room temperature

Within 0°F to 2°F (0°C to 1°C) of room temperature

2°F to 4°F (1°C to 2°C) BELOW room temperature

4°F (2°C) or more BELOW room temperature

On On

On

On On

On

Stop

On

LOWAUTOCOMP R VLVHEAT

LoHi Hi

LoLo Hi

Lo Hi

LoLo Hi

Lo HiHi

HIGH

NOTE: Above output chart is for the default reverse valve settings.

Refer to configuration instructions to change to type “B” if required.

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