Owners Manual

ManualsBrandsAmana ManualsCoolingNon-Programmable Thermostat 2 Stage Heat / 1 Stage Cool

AMANA PHWT-A150H THERMOSTAT

1) DESCRIPTION AND COMPATIBILITY

The Amana PHWT-A150H is a non-programmable

electronic thermostat, which can be used with the

following heating/cooling applications:

• Cooling/ Conventional PTAC Units (PTC) with or

without Electric Heat

• Heat Pump PTAC Units (PTH or HEH) with or

without Electric Heat

2) SPECIFICATIONS

• Input Voltage: 19 to 30 VAC

• Output Rating: Max. 1.5A per terminal (3A total)

• Temperature Control: 45°F to 90°F (7°C to 32°C)

• Temperature Accuracy: ± 1°F (± 0.5°C)

• Wire Terminals:

C 24 VAC Common

GL Fan LOW Speed

GH Fan HIGH Speed

W2 2nd Stage or Auxiliary Heating Signal

W1 1st Stage Heating Signal

Y Cooling Signal

R 24 VAC Hot

B/O Reversing Valve

3) SAFETY INFORMATION

• This thermostat is for LOW voltage applications only.

• Turn OFF electricity to all heating and cooling

components.

• All wiring must conform to applicable local

and national building and electrical codes and

ordinances.

4) TO REMOVE EXISTING THERMOSTAT

1. Write down the letters printed near each wire

terminal that is used, and the color of each wire it

is connected to; self-adhesive wire labels are also

enclosed.

2. Carefully remove wires from existing thermostat

and bend so they cannot fall back into wall or

touch each other.

3. Remove existing thermostat base from the wall.

5) TO INSTALL NEW THERMOSTAT

1. Mount the thermostat on an inside wall about

five feet above the floor in an area that has good

circulation, but is not directly aected by a vent

or duct.

2. If painting or construction is still ongoing, cover

the thermostat completely or wait until work is

complete before mounting thermostat.

3. If new mounting holes are needed, mark the

placement of the new mounting holes through

the thermostat base. Using a 3/16” drill bit,

drill the holes you have marked and insert the

supplied wall anchors.

4. Feed the wires through the wire opening in the

base and use supplied screws to mount base to

the wall.

5. Using Section 7) WIRING DIAGRAMS, wire each

terminal on the new thermostat base. Ensure that

the bare end is fully seated into the connector,

then tighten securely. Pull gently on wires to

ensure they are secure.

6. Place thermostat front back onto the base.

7. Restore power back to heating and cooling

components and thermostat.

8. See Section 8) INSTALLER SETTINGS MENU, to

adjust the required settings needed for each

system type.

Summary of content (4 pages)

PAGE 1
AMANA PHWT-A150H THERMOSTAT 3) SAFETY INFORMATION • This thermostat is for LOW voltage applications only. • Turn OFF electricity to all heating and cooling components. • All wiring must conform to applicable local and national building and electrical codes and ordinances. 4) TO REMOVE EXISTING THERMOSTAT 1. Write down the letters printed near each wire terminal that is used, and the color of each wire it is connected to; self-adhesive wire labels are also enclosed. 2.
PAGE 2
6) FRONT PANEL CONTROLS THERMOSTAT SYSTEM MODE SWITCH POSITIONS: THERMOSTAT BUTTONS: HEAT position OFF position UP button DOWN button COOL position HEAT = thermostat permits heating operation OFF = thermostat stops all heating or cooling functions COOL = thermostat permits cooling operation THERMOSTAT FAN SWITCH POSITIONS: AUTO position LOW position HIGH position AUTO position = fan operates in low speed mode as needed during a call for heating or cooling activation only.
PAGE 3
7) WIRING DIAGRAMS UP TO 2H/1C HEAT PUMP APPLICATIONS: (AMANA PTH & HEH PTAC MODELS): B/O R Y W1 W2 GH GL C UP TO 1H/1C CONVENTIONAL APPLICATIONS: (AMANA PTC PTAC MODELS) **see note 1 HP Reversing Valve 24V Power Heat Pump Compressor NOT USED * * note 1: WHEN USED FOR HEAT PUMP, THE Y & W1 TERMINALS ACT AS ONE Auxiliary/Emerg Heat Blower Fan (High Speed) *see note 2 *see note 3 Blower Fan (Low Speed) 24V Common B/O R Y W1 W2 GH GL C NOT USED 24V Power A/C Cooling Hea�ng Stage-1 **see note 2 NOT U
PAGE 4
8) INSTALLER SETTINGS MENU# SETTING OPTIONS 01 Scale F, C 02 Temp. Calibration Zero, -5F to +5F (-3C to +3C) 04 Max. Heat 60F to 90F (80F) (16C to 32C) 05 Min. Cool 60F to 80F (65F) (7C to 24C) 06 System Type HP=Heat Pump Con=Conventional 09 Swing / Temp. Differential ±0.25F (±0.14C) ±0.50F (±0.28C) ±1.00F (±0.56C) ±2.25F (±1.25C) 10 Aux. Stage Offset (for Heat Pumps only) Off 1: 1.0F (0.5C) 2: 2.0F (1.0C) 3: 3.0F (1.5C) 4: 4.0F (2.0C) 5: 5.0F (2.