Vertical Stack XL
AIO Wall Mounted units are slim and sleek. Wall Mounted units can be mounted high or low with a factory supplied bracket, making installation quick and simple. An electronically controlled louver with an auto-swing function distributes airflow comfortably and uniformly. Wall Mounted units are ideal for any area with free wall space. The onboard touch controller simplifies use and installation. AIO Wall Mounted units are available with an optional ERV module. Special adapters enable the unit to be installed perpendicular to an outside wall.
- Compact unit
- Easy to install
- High ESP for internal and external ducting
- Extraordinary flexible ducting
- Bathroom exhaust connection
- Auto-restart
- Washable filters
Options
- 900/1,800W electric heat
- With or without ERV
- 230V
- Hardwire or LCDI cord
- R32
- MERV 13 filtration on return air
Operation
- Cool, heat, dehumidify, and auto
- Selectable fan speeds, low, med, high, and auto
- Fresh air ERV - field configurable amount of fresh air (with optional ERV Module)
Mounting
- Vertical
Airflow
- 22" x 31" external vent
- Available 0.7" WC for external ducting, adapters, and louvers
- Available 0.6" WC for internal ducting and louvers
Included controls
- Onboard touch controller for diagnostics and programing
Optional controllers
- WiFi app for Android and iPhone
- Wall Mounted Advanced touchscreen with a 7-day program
- Wall Mounted Basic touch controller
- Third party thermostat interface
- BACnet/Modbus interface


































No Access Required
The versatile design of AIO makes the system extremely reliable and inexpensive to maintain. If a repair is needed, a single unit can be taken off-line without affecting the entire system. It’s possible to install AIO Vertical stack XL on the corridor wall of each apartment/hotel room so that all maintenance can be achieved from a common area – at any time, which means no maintenance personnel needs to enter the unit.
Extraordinarily Flexible Ducting
Model V’s powerful backward centrifugal ECM fan facilitates efficient condenser air movement through ductwork, enabling flexible placement within a room or apartment. Unlike traditional VTACs, it doesn’t require an outside wall. The design allows air supply from the top or both sides, with flexible condenser intake options (left, right, or rear). Flexible ducting choices with 0.7 in. W.C. make Model V versatile for installation without restrictions in any dwelling area.
Installation
What's Inside
Technical Specifications
Cooling
Heat Pump only
Capacity
- Maximum (kBtu/h)
- Recommended (kBtu/h)*
- Nominal (kBtu/h)
- Minimum(kBtu/h)
Power Input
- Maximum (kW)
- Recommended (kW)*
- Nominal (kW)
- Minimum (kW)
Efficiency
- Maximum
- Recommended*
- Nominal
- SEER2***
Moisture removal (Pts/h)
95°F 1
- 24.0
- 22.0
- 20.3
- 4.5
- 2.35
- 2.05
- 1.74
- 0.34
- 10.23
- 10.76
- 11.65
- 13.91
1.9
105°F 2
- 22.0
- 20.5
- 18.3
- 4.5
- 2.32
- 2.25
- 1.96
- 0.36
- 9.48
- 9.11
- 9.36
- -
2.1
115°F 3
- 21.0
- 18.5
- 17.5
- 3.1
- 2.36
- 2.31
- 2.15
- 0.36
- 8.91
- 8.01
- 8.15
- -
2.31
- 1
- 2
- 3
- 95°F
- 105°F
- 115°F
- ID: 80°F, W.B. 67°F;
- ID: 80°F, W.B. 67°F;
- ID: 80°F, W.B. 67°F;
- OD: 95°F, W.B. 75°F
- OD: 105°F, W.B. 75°F
- OD: 115°F, W.B. 75°F
- * This is the recommended capacity for sizing the unit to the space
- ***SEER2 does not apply to PTHP-type units and is shown solely to enable comparison with similar heat pump systems. Values are for reference and comparison purposes only.
Heating
Heat Pump only**
Capacity
- Maximum (kBtu/h)
- Recommended (kBtu/h)*
- Nominal (kBtu/h)
- Minimum(kBtu/h)
Power Input
- Maximum (kW)
- Recommended (kW)*
- Nominal (kW)
- Minimum (kW)
Efficiency
- Maximum
- Recommended
- Nominal
- Minimum
- HSPF2***
47°F 1
- 24.0
- 20.0
- 17.3
- 5.0
- 2.34
- 1.80
- 1.42
- 0.32
- 3.01
- 3.3
- 3.56
- 4.58
- 9.12
17°F 2
- 17.5
- 11.6
- 10.4
- 4.15
- 2.28
- 1.48
- 1.29
- 0.35
- 2.25
- 2.3
- 2.37
- 3.53
- -
5°F 3
- 12.5
- 9.3
- 8.3
- 3.85
- 2.21
- 1.39
- 1.21
- 0.34
- 1.66
- 1.96
- 2.01
- 3.28
- -
0°F 4
- 9.5
- 8.3
- 7.4
- 3.85
- 2.38
- 1.40
- 1.22
- 0.37
- 1.2
- 1.74
- 1.79
- 3.07
- -
-5°F 5
- 8.2
- 7.6
- 6.8
- 3.85
- 2.38
- 1.23
- 1.06
- 0.40
- 1.0
- 1.81
- 1.88
- 2.8
- -
- 1
- 2
- 3
- 4
- 5
- 47°F
- 17°F
- 5°F
- 0°F
- -5°F
- ID: 70°F, W.B. 60°F;
- ID: 70°F, W.B. 60°F;
- ID: 70°F, W.B. 60°F;
- ID: 70°F, W.B. 60°F;
- ID: 70°F, W.B. 60°F;
- OD: 47°F, W.B. 43°F
- OD: 17°F, W.B. 13°F
- OD: 5°F, W.B. 3°F
- OD: 0°F
- OD: -5°F
- * This is the recommended capacity for sizing the unit to the space.
- ** The tables show Heat Pump performance only. An electric heating element can be added to provide an additional output of 3.1 or 6.1 kBtu/h.
- ***SEER2 does not apply to PTHP-type units and is shown solely to enable comparison with similar heat pump systems. Values are for reference and comparison purposes only.
Cooling
Heat Pump only
Capacity
- Maximum (kBtu/h)
- Recommended (kBtu/h)*
- Nominal (kBtu/h)
- Minimum(kBtu/h)
Power Input
- Maximum (kW)
- Recommended (kW)*
- Nominal (kW)
- Minimum (kW)
Efficiency
- Maximum
- Recommended*
- Nominal
- SEER2***
Moisture removal (Pts/h)
95°F 1
- 24.0
- 22.0
- 11.6
- 4.5
- 2.35
- 2.05
- 1.74
- 0.34
- 10.23
- 10.76
- 11.65
- 15.4
1.9
105°F 2
- 22.0
- 20.5
- 18.3
- 4.5
- 2.32
- 2.25
- 1.96
- 0.36
- 9.48
- 9.11
- 9.36
- -
2.1
115°F 3
- 21.0
- 18.5
- 17.5
- 3.1
- 2.36
- 2.31
- 2.15
- 0.36
- 8.91
- 8.01
- 8.15
- -
2.31
- 1
- 2
- 3
- 95°F
- 105°F
- 115°F
- ID: 80°F, W.B. 67°F;
- ID: 80°F, W.B. 67°F;
- ID: 80°F, W.B. 67°F;
- OD: 95°F, W.B. 75°F
- OD: 105°F, W.B. 75°F
- OD: 115°F, W.B. 75°F
- * This is the recommended capacity for sizing the unit to the space
- ***SEER2 does not apply to PTHP-type units and is shown solely to enable comparison with similar heat pump systems. Values are for reference and comparison purposes only.
Heating
Heat Pump only**
Capacity
- Maximum (kBtu/h)
- Recommended (kBtu/h)*
- Nominal (kBtu/h)
- Minimum(kBtu/h)
Power Input
- Maximum (kW)
- Recommended (kW)*
- Nominal (kW)
- Minimum (kW)
Efficiency
- Maximum
- Recommended
- Nominal
- Minimum
- HSPF2***
47°F 1
- 24.0
- 20.0
- 14.2
- 5.0
- 2.34
- 1.80
- 1.42
- 0.32
- 3.01
- 3.3
- 3.56
- 4.58
- 9.15
17°F 2
- 17.5
- 11.4
- 10.4
- 4.15
- 2.28
- 1.45
- 1.29
- 0.35
- 2.25
- 2.3
- 2.37
- 3.53
- -
5°F 3
- 12.5
- 9.2
- 8.3
- 3.85
- 2.21
- 1.20
- 1.21
- 0.34
- 1.66
- 2.25
- 2.01
- 3.28
- -
0°F 4
- 9.5
- 8.3
- 7.4
- 3.85
- 2.38
- 1.40
- 1.22
- 0.37
- 1.2
- 1.74
- 1.79
- 3.07
- -
-5°F 5
- 8.2
- 7.6
- 6.8
- 3.85
- 2.38
- 1.23
- 1.06
- 0.40
- 1.0
- 1.81
- 1.88
- 2.8
- -
- 1
- 2
- 3
- 4
- 5
- 47°F
- 17°F
- 5°F
- 0°F
- -5°F
- ID: 70°F, W.B. 60°F;
- ID: 70°F, W.B. 60°F;
- ID: 70°F, W.B. 60°F;
- ID: 70°F, W.B. 60°F;
- ID: 70°F, W.B. 60°F;
- OD: 47°F, W.B. 43°F
- OD: 17°F, W.B. 13°F
- OD: 5°F, W.B. 3°F
- OD: 0°F
- OD: -5°F
- * This is the recommended capacity for sizing the unit to the space.
- ** The tables show Heat Pump performance only. An electric heating element can be added to provide an additional output of 3.1 or 6.1 kBtu/h.
- ***SEER2 does not apply to PTHP-type units and is shown solely to enable comparison with similar heat pump systems. Values are for reference and comparison purposes only.
Indoor
- Type
- CFM
- Available ESP
- Fan Modes
- Supply connection
- Return connection
- Filter
- ECM centrifugal
- 247 - 740
- N/A
- Low, med, high, boost, auto
- Integrated front
- Integrated bottom
- MERV 3
Outdoor
- Type
- CFM
- Available ESP
- Intake connection
- Exhaust connection
- Speeds
- ECM centrifugal
- 382 - 1110
- 0.7” WC
- 8” round
- 8” round
- Low, med, high, auto
Indoor
- Type
- Oil Type
Modes
-
Operation
-
Restricted modes
- Timers
- BLDC twin rotary inverter
- Fv50s
-
Cool+ fresh air, cool only,
heat+ fresh air, heat only, auto -
Heat only, cool only,
temperature limiting - Dependent on the controller
Controls
- Basic functionality
- WiFi
- Power Outage Restart
- Dry contact
Condensate
- Pipe size
- Pipe Material
- Dependent on controller
- Optional module available
- Auto-on based on last setting
- Yes
- 3/4" Outside diameter
- Rubber
Heat Pump only
- Power Supply (Ph/Hz)
- Power Factor
- Input Power - standby (W)
- Input Power - off mode (W)
- Running Amps Cooling (A)
- Maximum Amps Cooling (A)
- Running Amps Heating (A)
- Maximum Amps Heating (A)
- MCA (A)
- MOCP (A)
- Recommended Breaker Size (A)
AHRI
230V
- 1/60
- 0.96
- 10.8
- 1.7
- 7.6
- 11.2
- 8.6
- 11.2
- 14
- 19
- 15
Energy Star Certified
230V
- 1/60
- 0.96
- 10.8
- 1.7
- 7.6
- 11.2
- 8.6
- 11.2
- 14
- 19
- 15
Heat Pump + 3.6 kW Electric Heat
- Power Supply (Ph/Hz)
- Power Factor
- Input Power - standby (W)
- Input Power - off mode (W)
- Running Amps Cooling (A)
- Maximum Amps Cooling (A)
- Running Amps Heating (A)
- Maximum Amps Heating (A)
- MCA (A)
- MOCP (A)
- Recommended Breaker Size (A)
AHRI
230V
- 1/60
- 0.96
- 10.8
- 1.7
- 7.6
- 11.2
- 21.8
- 26.9
- 29
- 35
- 30
Energy Star Certified
230V
- 1/60
- 0.96
- 10.8
- 1.7
- 7.6
- 11.2
- 21.8
- 26.9
- 29
- 35
- 15
General
- Flow type
- Material
- ASHRAE compliance
- Counterflow enthalpy exchanger
- Mold and bacteria resistant, washable polymer membrane
- 62.1 And 62.2 When used with the ERV module
Efficiency of core in winter
- Sensible (%)
- Latent (%)
20 CFM
- 81.7
- 58.1
30 CFM
- 78.3
- 55.5
50 CFM
- 83.1
- 60.3
Efficiency of core in summer
- Sensible (%)
- Latent (%)
- 68.1
- 57.5
- 64.3
- 53.4
- 59.1
- 47.3
Filter
- Indoor air (MERV)
- Outside air (MERV)
- MERV 3 / optional MERV 13
- MERV 3
- MERV 3 / optional MERV 13
- MERV 3
- MERV 3 / optional MERV 13
- MERV 3
Leakage
- Internal (WC)
- External (WC)
- 2.6% at 0.40”
- 2.8% at 1.0”
- 2.4% at 0.40”
- 2.7% at 1.0”
- 2.2% at 0.40”
- 2.5% at 1.0”
Compressor
- RLA (A)
- LRA (A)
Indoor ECM fan motor
- Max Watts (W)
- F.L.A (A)
- Power (HP)
Outdoor ECM fan motor
- Max Watts (W)
- F.L.A (A)
- Power (HP)
Indoor
- DB range: dB(A)
- STC
- OITC
- 27 - 43
- 40
- 35
Outdoor
- dB(A)
- 28 -55
- Dimensions
- Net weight (Ib)
- Gross weight (Ib)
- Cabinet finish
- Cabinet material
- 23.4” W x 26.6” D x 75.4” H
- 332
- 350
- Black covered with dark gray EPDM
- Steel
Documentation
Without ERV
With ERV
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