Page 1
Digital
OWNER’S MANUAL &
INSTALLATION INSTRUCTIONS
RAK148H2
SAFETY INFORMATION ....................2
OVERVIEW ........................................3
INSTALLATION ................................ 4
WIRING DIAGRAMS ..........................8
CONFIGURATION MODE .................10
OPERATING FUNCTIONS ............... 12
TESTING THERMOSTAT .................. 13
TROUBLESHOOTING ....................... 15
WARRANTY ..................................... 16
THERMOSTAT
LIAF271 49-7757-1 01-20 GEA
Page 2
IMPORTANT SAFETY INFORMATION
READ ALL INSTRUCTIONS BEFORE USING
WARNING
FIRE AND SHOCK HAZARD
• Always turn off power at the main power supply
before installing, cleaning or removing the
thermostat. Failure to do so could result in
electrical shock hazard.
• Do not use on voltages over 30 VAC. Higher
voltages will damage the thermostat and could cause
shock or fire hazard.
NOTICE
• All wiring must conform to local and national
electrical and building codes.
• Use this thermostat only as described in this manual.
Specifications
Electrical rating: • 24 VAC (18–30 VAC)
• 1 amp maximum per terminal
• 4 amp maximum total load
Operating temperature range: 40°F–99°F (4°C–37°C)
Temperature set range: 60°F–85°F (15°C–29°C)
Accuracy: ± 1°F (± 0.5°C)
System configurations:
• Factory Setting: 2-stage heat (heat pump/resistance
heat), 1-stage cool, 2-speed fan
• Alternate Setting: 1-stage heat (resistance heat),
1-stage cool, 2-speed fan
Terminations: R, C, W, Y, GH, GL, B (RAK148H2)
Wiring:
2
Maximum wiring length is 66ft (20 meters) for
AWG18
Maximum wiring length is 60ft (18 meters) for
AWG20
Page 3
INTRODUCTION OVERVIEW
Auto
Cool
Off
Heat
On
Low
High
COOL
OFF
HEAT
RESET
RIGHT
LEFT
AUTOONON
HIGH
LOW
THERMOSTAT CONTROLS
Display Up/Down Buttons
Low
High
Cool
Function Switch
Heat
Auto
Off
Fan Auto/On Switch
On
Fan Speed Switch
THERMOSTAT BASE LAYOUT
Display
Up/Down Buttons
Wiring
Channel
Mounting
Hole
Mounting
Hole
Configuration
Buttons
LEFT
RIGHT
COOL
Function
Switch
RESET
OFF
B GH GL Y W C
HEAT
AUTO
Fan Auto/On
Switch
R
LOW
HIGH
Fan Speed
High/Low
3
Page 4
INSTALLATION INSTRUCTIONS
WARNING
ELECTRICAL SHOCK HAZARD—Turn off
power by unplugging the unit or by removing
the fuse or switching the appropriate circuit
breaker to the OFF position before removing
the existing thermostat. Failure to do so could
result in risk of electric shock.
PACKAGE CONTENTS/TOOLS
REQUIRED
Package includes: Thermostat base, thermostat cover,
wiring labels, screws and wall anchors.
Tools needed: 'ULOOZLWKƎELWKDPPHUVFUHZGULYHU
and putty.
4
Page 5
INSTALLATION INSTRUCTIONS
TO REMOVE EXISTING THERMOSTAT
1. Turn off power to heating and cooling system by
removing the fuse or switching off the appropriate
circuit breaker.
2. Remove cover of old thermostat. This should
expose the wires.
3. Label the existing wires with the enclosed wire
labels before removing wires.
4. After labeling wires, remove wires from wire
terminals.
5. Remove existing thermostat base from wall.
6. Refer to the following section for instructions on
how to install this thermostat.
5
Page 6
INSTALLATION INSTRUCTIONS
TO INSTALL THERMOSTAT
IMPORTANT: Thermostat installation must
conform to local and national building and electrical
codes and ordinances.
NOTE: Mount the thermostat about five feet above the
floor. Do not mount the thermostat on an outside wall,
in direct sunlight, behind a door or in an area affected by a
vent or duct.
1. Turn off power to the heating and cooling system
by removing the fuse or switching off the appropriate
circuit breaker.
2. Move the Function switch on the thermostat to Off.
3. Remove the cover by inserting and twisting a coin or
screwdriver in the slots on the top of the thermostat.
4. Put thermostat base against the wall where you plan
to mount it. Make sure wires will feed through the
wire opening in the base of the thermostat.
5. With the base level, mark the placement of the
mounting holes.
6. Set thermostat base and cover away from working
area.
7.8VLQJDƎGULOOELWGULOOKROHVLQWKHORFDWLRQV\RX
have marked for mounting.
8. Use a hammer to tap supplied anchors in mounting
holes.
9. Align thermostat base with mounting holes and
feed the control wires through the wire opening.
6
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INSTALLATION INSTRUCTIONS
TO INSTALL THERMOSTAT (cont.)
10. Seal hole for wires behind thermostat with non-
flammable insulation or putty, or use a wall
plate obtainable from a local hardware or home
building store.
11. Use supplied screws to mount thermostat base to
wall.
12. Insert stripped, labeled wires in matching wire
terminals by pressing on the corresponding
terminal contact. See the “Wiring Diagrams”
section of this manual.
NOTICE
Make sure exposed portion of wires do not touch
other wires.
13. Gently tug wire to be sure of proper connection.
Double check that each wire is connected to the
proper terminal.
14. Replace cover on thermostat by snapping it in
place.
15. Plug the unit in or turn on power to the system at
the main service panel.
16. Test thermostat operation as described in the
“Testing the Thermostat” section.
7
Page 8
WIRING DIAGRAMS
B
GH Y W C
R
GL
Table 1: Terminals for six wires 1-stage heat/1-stage
cool system
INDOOR FAN-HIGH
COMPRESSOR
INDOOR FAN-LOW
HEAT ELECTRIC
GH
GL
24 VAC COMMON
R
24 VAC HOT
8
Page 9
WIRING DIAGRAMS
B
GH Y W C
R
GL
Table 2: Terminals for seven wires 2-stage
heat/1-stage cool system
-HIGH
-LOW
GH
GL
R
9
Page 10
CONFIGURATION MODE
The configuration mode is used to set the RAK148H2 to
match the heating/cooling system. This thermostat function
with up to 2-stage heat pump systems.
To configure the RAK148H2, perform the following steps:
Note: Operation being set will blink in the display.
1. Slide the Function switch to the OFF position.
2. Remove the thermostat’s front cover.
3. To enter the configuration mode, simultaneously hold
the LEFT and RIGHT buttons in for 3 seconds while the
thermostat is in OFF mode. (See diagram on page 3.)
4. Once in the configuration mode, press the
button to change settings within each screen.
- Press the RIGHT button to advance to the next screen.
- Press the LEFT button to return to the previous screen.
NOTE: To exit configuration mode at any time, slide the
Function switch to Heat or Cool.
Configuration Mode Settings
The setup screens for Configuration Mode are as follows:
1. Temperature Scale (°F or °C)—Choose
Fahrenheit or Celsius.
<
Press the
Press the RIGHT button to advance to the next screen.
NOTE: Default factory setting is Fahrenheit.
2. Heat System—Check model number on the Hotpoint
chassis to determine the primary heating method.
AZ11H***** is a heat pump and is the thermostat factory setting.
AZ11E***** is a straight electric heat model and requires a mode
setting change.
To change the heating mode configuration, press the
RIGHT button to advance to the HSH screen. Press the
<
or > button to select HSE.
Press the RIGHT button to advance to the next screen.
3. Temperature Differential—Stage 1—
(1–9°F) (1–5°C)
Set the number of degrees between the
“setpoint” temperature and the
“turn on” temperature for first stage.
or > button to select.
10
<
or >
Page 11
CONFIGURATION MODE
Press the < or > button to set differential value.
Press the RIGHT button to advance to the next screen.
Note: Default factory setting is 2°F/1°C for each stage.
4. Temperature Differential—Stage 2
(1–9°F/1–5°C) Heat Pump (HSH) only
Set the number of degrees between when
stage 1 turns on and stage 2 turns on.
Press the
Press the RIGHT button to advance to the next screen.
Note: Default factory setting is 2°F/1°C for each stage.
5. Minimum Cool Setpoint (60, 64, 66, 68,
70, 72, 74, 76°F) (15, 17, 19, 20, 21, 22,
23, 24°C)
Adjust to control the minimum Cool set
temperature allowed.
Press the
Press the RIGHT button to advance to the next screen.
Note: Default factory setting is 60°F/15°C.
6. Maximum Heat Setpoint (65, 70, 72, 74,
76, 78, 80, 85°F) (18, 21, 22, 23, 24, 26,
27, 29°C)
Adjust to control the maximum Heat set
temperature allowed.
Press the
Press the RIGHT button to advance to the next screen.
Note: Default factory setting is 85°F/29°C.
7. Room temperature offset (+9°F to –9°F)
(+5°C to –5°C)
Adjust to calibrate displayed room
temperature to match actual room
temperature.
Press the
Press the RIGHT button to advance to the next screen.
Note: Default factory setting is 0°F/0°C.
<
or > button to set differential value.
<
or > button to select.
<
or > button to select.
<
or > button to select.
11
Page 12
OPERATING FUNCTIONS
Off
• In this mode, the thermostat will not turn on the heating or
cooling devices (manual fan can operate).
• Off is also used to access Configuration mode.
Cool
• In this mode, the thermostat
controls the cooling system.
• Press the
set the desired temperature.
Heat
• In this mode, the thermostat
controls the heating system.
• Press the
to set the desired temperature.
<
or > button to
<
or > button
12
Page 13
TESTING THE THERMOSTAT
Once the thermostat is installed, it should be thoroughly
tested.
NOTICE
Do not use air conditioning beyond the simple test when
the outdoor temperature is below 50 degrees. This can
damage the air conditioning system.
Note: Before testing the thermostat,
move the Fan Auto/On switch to the
Auto position.
Fan Test
1. With Function switch set to Off, slide
Fan Speed switch to High, and slide
Fan Auto/On switch to On position.
2. Indoor fan turns on in high
speed.
3. Slide Fan Speed switch to Low.
4. Indoor fan slows to low speed.
5. Slide Fan Auto/On switch to Auto position.
6. Indoor fan turns off.
Cool Test
1. Slide Function switch to Cool position. Cool mode screen
is displayed.
2. Adjust set temperature so it is 5 degrees below room
temperature.
3. Air conditioning should come on within a few seconds.
4. Adjust the set temperature so it is 2 degrees above the
room temperature and the A/C should turn off. Note:
There is a 3 minute time delay and a 3 minute minimum
run time for the compressor when it turns on/off. (On
some models, the fan may also have a minimum run time/
off time delay).
Low High
13
Page 14
TESTING THE THERMOSTAT
Heat Test
1. Slide Function switch to Heat
position. Heat mode screen is
displayed.
2. Adjust set temperature so it is 5 degrees above room
temperature.
3. Heat should come on within a few seconds.
4. Adjust the set temperature so it is 2 degrees below the
room temperature and the heat should turn off. Note:
There is a 3 minute time delay and a 3 minute minimum
run time for the compressor when it turns on/off. (On
some models, the fan may also have a minimum run time/
off time delay).
14
Page 15
TROUBLESHOOTING TIPS
Problem Solution
No Display Check for 24 VAC; display is blank
System fan does not
come on properly
All thermostat buttons are inoperative
Thermostat turns on
DQGRႇWRRIUHquently
Fan runs continuously
Room temperature
is not correct
Compressor doesn’t
UXQRUWXUQRႇLPmediately when
changing function
or setting
Fan doesn’t run or
WXUQRႇLPPHGLately when changing
function or setting
Problem not listed
above
when 24 VAC is not present
Verify that wiring is correct.
Verify that 24 VAC is present; unit
will not operate when 24 VAC is not
present.
$GMXVWWHPSHUDWXUHGLႇHUHQWLDO
VHH&RQ¿JXUDWLRQ0RGH6HWWLQJ
7HPSHUDWXUH'LႇHUHQWLDO6WDJHDQG
Stage 2 section).
Check Fan Auto/On switch. If set to
ON position, fan will run.
Verify that wall hole is plugged with
SXWW\RULQVXODWLRQWRSUHYHQWDLUÀRZ
from the wall cavity. Adjust Tempera-
WXUH2ႇVHWVHH&RQ¿JXUDWLRQ0RGH
5RRPWHPSHUDWXUHRႇVHWVHFWLRQ
There is a 3 minute time delay and
a 3 minute minimum run time for the
FRPSUHVVRUZKHQLWWXUQVRQRႇ
This is normal. On some models, the
IDQPD\KDYHDPLQLPXPUXQWLPHRႇ
time delay.
Press the Reset button once to reset
the thermostat and restore all factory
settings.
15
Page 16
THERMOSTAT WARRANTY
Staple your receipt here.
Proof of the original purchase date is
needed to validate the warranty.
For The Period Of: Hotpoint Will Replace:
One Year Full Replacement of the thermostat which fails
From the date of the due to a defect in materials or workmanship.
original purchase For Warranty replacement, contact your distributor.
What Hotpoint Will Not Cover:
Ŷ Service trips to your location.
Ŷ Improper installation. If you have an installation problem, contact
your installer. You are responsible for providing adequate electrical
connections to the product.
Ŷ Failure of the product resulting from modifications to the product or
due to unreasonable use, including failure to provide reasonable and
necessary maintenance.
Ŷ In commercial locations, labor necessary to move the unit, after it has
been initially installed, to a location where it is accessible for service by
an individual technician; or, if the instructions included in this manual
have been disregarded.
Ŷ Replacement of location fuses or the resetting of circuit breakers.
Ŷ Damage to the product caused by improper power supply voltage,
accident, fire, floods or acts of God.
Ŷ Incidental or consequential damage caused by possible defects with
this thermostat.
EXCLUSION OF IMPLIED WARRANTIES—Your sole and exclusive
remedy is product exchange as provided in this Limited Warranty. Any
implied warranties, including the implied warranties of merchantability
or fitness for a particular purpose, are limited to one year or the
shortest period allowed by law.
This warranty is extended to the original purchaser and any succeeding owner
for products purchased for use within the USA and Canada. In Alaska, the
warranty excludes the cost of shipping or service calls to your site.
Some states or provinces do not allow the exclusion or limitation of
incidental or consequential damages. This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state or
province to province. To know what your legal rights are, consult your local,
state or provincial consumer affairs office or your state’s Attorney General.
Warrantor: GE Appliances, a Haier company
Louisville, KY 40225
16
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