InverterCool SVS Smart Variable Speed Ducted Split Heat Pump User Guide

Up to 18 SEER
Smart Variable Speed
Ducted Split Heat Pump
Quick Start-up Guide

SVS Smart Variable Speed Ducted Split Heat Pump

Manufacturer reserves the right to change specifications or designs without notice.
April 2022
www.invertercool.com

Smart Variable Speed (SVS)
Ducted Split Heat Pump and Fault Detection and Diagnostics(FDD) Device
The InverterCool Smart Variable Speed (SVS) heat pump is one of the industry’s most innovative and efficient systems, with ratings up to 18 SEER and 10 HSPF per AHRI standard 210/240-2017. With InverterCool’s patented technology, the SVS heat pump automatically adjusts itself while maintaining constant and consistent speeds to avoid temperature swings.
Compared with fixed speed systems, InverterCool SVS system have a much wider capacity range which helps to achieve faster heating and cooling. With more than 30 variable stage settings, InverterCool SVS system provide more accurate and efficient temperature control while using less energy.
With the Fault Detection and Diagnostics(FDD) device, InverterCool provides an easy way for dealers to help their customers complete registration via InverterCool FDD App in just minutes. Then dealers can monitor the units’ live data and perform remote field settings for the condensing unit. Working alongside the InverterCool Service Team, the dealer can guarantee installation and servicing quality.

Features

• Up to 18.0 SEER and 10.0 HSPF
• Variable Speed Compressor (25%-110% speed)
• 24×7 Fault Detection and Diagnostics(FDD) service*
• 9 Speed ECM outdoor unit blower
• Easy to install – compatible with most traditional 24V AC thermostats
• AUTO charge mode to make accurate refrigerant coefficient for the system
• Back-up running for maximum 2 failed sensors
• 10-year Residential Limited Parts Warranty**
• 10-year Labor Warranty**

*FDD service provide monitoring your HVAC system in real time so that our installer can remotely view how your system is performing. We will send you a notice if the system doesn’t run well and make an appointment for a site-check under your permission. An agreement need to be signed by the home owner before we provide such service.
**Residential: To receive 10-Year Parts Limited Warranty and 10-year Labor Warranty, online registration must be completed within 60 days of installation, otherwise 5-Year will be applied for Part Limited Warranty and Labor Warranty . Online registration is not required in California or Quebec.
Commercial: 3-Year Parts Limited Warranty ONLY.

Specification

• Certified per AHRI 210/240-2017
  (1) Seasonal Energy Efficiency Ratio; (2) Energy Efficiency Ratio @ Afull; (3) Heating Seasonal Performance Factor

Wiring Diagrams

Outdoor W terminal outputs 24Vac once ambient temperature (TA) is lower than specified value with pretty low high pressure. Work when n02 setting is default ON and Heat ON at thermostat.

n03 setting
0: TA<15°F (24V output) –Factory
1: TA<30°F (24V output)
2: TA<40°F (24V output)
3: TA<-3°F (24V output)
4: OFF

NOTES:

1. Be sure power supply agrees with equipment nameplate.
2. Power wiring and grounding of equipment must comply with local codes.
3. Low voltage wiring to be No. 18 AWG minimum conductor.
4. “—” means the electric heater kit’s connection.

• Some thermostats may use W2/AUX for heat pump.

Line Sets and Charging

The InverterCool SVS heat pump is factory pre-charged for 25ft of standard size line set and for the smallest rated indoor coil combinations. Up to 100ft of line set is allowed with a maximum of 50ft lift (see below).

• Standard line set is recommended, N/A: Not allowed

Refrigerant charge is suggested to be done by the following methods:

1. Charge by Weigh-In
   This method can be used for the initial installation, or anytime a system charge needs to be replaced. This method can be used when power is not available on the job site or the ambient temperature is improper to use refrigerant coefficient and sub-cooling. A refrigerant adjustment may be necessary if the line set length is over or under the precharged 25ft (adding or removing 0.6 oz/ft on 3/8 liquid line respectively). An additional amount of refrigerant adjustment may be required for a large indoor coil.

2. Charge by Refrigerant Coefficient
   Ambient temperature must be between 50ºF and 120ºF and indoor temperature must be kept between 70ºF and 80ºF.
   After starting the system in cooling mode, Press and hold BS4 button for five seconds until SEG1 displays blinking 7, and operate the system for a minimum of 20 minutes.
   Check refrigerant coefficient number (here short for “X”, 0<X<1) on the display. If X>0.6, remove refrigerant; or X<0.4, add more refrigerant. Then wait for 5 minutes to allow pressure balanced. Check the new coefficient number to make sure you get 0.5. Basically, 0.4 to 0.6 is acceptable if SH≤20゜F.
   When the LED displays “–” for more than 20 minutes, adjust the TXV opening to ensure required compressor suction superheat (SH>7゜F).

Exit Charge Mode: Press BS4 once or After 2 hours running or Turn off the system at thermostat

Control Board Settings

In most scenarios, it is recommended to keep all outdoor unit board dip switch positions in their manufacturer default positions. There are some specific scenarios when it makes sense to change dip switch settings.

Dip Switch SW1
SW1-1 is not used and should remain in the factory default position at all times.
SW1-2 selects Tonnage of the condensing unit.
SW1-3 sets Air Conditioner or Heat Pump
SW1-4 is suggested to remain in the factory default position (OFF). FDD command responses such as remote field setting, troubleshooting, software programming etc. only work when this switch remains in the OFF position.

Must power off the unit for at least two (2) minute to activate your dial of switches.

SEG1: Normally blank

SEG2: Normally blank

SEG3: Normally shows operation mode

SEG2 and SEG3: Show following codes when system is in fault

Troubleshoot based on service manual, or via InverterCool FDD App.

BS1 Button – “Menu” or “Back” button
Shortly press “BS1” to query settings
n00: Mode choice (Energy Saving, Dry, High Capacity)
n01: Prohibited heat pump running temperature
n02: Turn ON/OFF W output
n03: W output settings
n04: Defrost Mode (Heavy/light snow, standard)
n05: Silent Mode (level 1 or 2, night silent level 1 or 2)
n06: Night Silent Start Hour
n07: Night Silent End Hour
n08: Manual Defrost
Press and hold “BS1” for 5 seconds to set above functions (n01 to n08). Refer to install or service manual for details. You can change these settings besides n08 via InverterCool FDD App.

BS2 Button – “UP” button
BS3 Button – “Spot check” and “Confirm” button

1. After first pressing on the “BS3” button, it will display the sequence, and after 1 second it will display the value of the parameter.
2. After 20 seconds on same parameter, display will revert back to normal status.

Key parameters can be remotely monitored via InverterCool Smart Service Pro App.

BS4 Button
Press and hold “BS4” for 5 seconds to enter AUTO charge mode by coefficient number in cooling or pump down in heating.

FDD Connection and Registration

Hook the FDD device on the shell of control board inside the condensing unit, make sure it cannot move. Unscrew the cable locker cap and fasten the waterproof joint based on the FDD install guide.
Plug the male blue terminal of FDD device into CN11 (FDD) connector on main control board of condensing unit. Power ON the condensing unit and check if the FDD device is working properly. The normal working state of FDD device should be the blue LED (No.1) is blinking with other LEDs light OFF.

Always ON
Blinking| Power off
Booting
Running
2| Red| LTE Status| Always OFF
Always ON
Blinking| LTE connected
Booting
LTE disconnected
3| Green| Connection to PCB| Always OFF
Always ON
Blinking| Local link connected
Booting
Local link disconnected

Get the InverterCool FDD App
Download or update the InverterCool FDD App free on the App Store or Google Play.

Steps of warranty registration

1. Create an InverterCool account
2. Add Unit (Register a new HP)
   • Sign an agreement with homeowner
   • Scan/Input serial numbers to submit

About InverterCool

InverterCool (IC) is a technology company that centers its core competence and offering around the patent based Full-Fledged Inverter Control residential HVAC system. Bundled with world-class FDD (Fault Detection and Diagnostics) option, we offer consumers One-Stop Shop variable-speed HVAC system purchase, installation and maintenance (PIM) and guarantee their best experience.
Our mission is to provide consumes with Peach of Mind through higher quality product at lower Total Ownership Cost (TOC – comprised of costs of purchase, installation, service/maintenance and life-time electricity consumption). We make every effort to give our customers the best user experience, whether it’s pre-, on or after sales.

©2022 InverterCool, Inc.
6611 NW 84th Ave, Miami, FL 33166
Tel: 1 (855) 632 0620
www.invertercool.com

References

• InverterCool®|one-stop shop for Heat Pump System and Installation

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