HVAC Integration with Home Automation September 7-9 SAN DIEGO CONVENTION CENTER

Home , Smart thermostat

+ CoolAutomation

TRAINING SESSION HVAC Integration with Home Automation September 7-9 SAN DIEGO CONVENTION CENTER

01 02 03 04 Traditional Inverter Integration Our Solutions HVAC HVAC with Inverter HVAC

A brief explanation about the different HVAC system types 01

Small Scale Medium Scale Large Scale Residential Sector Commercial Sector Large-Commercial Sector

Chillers

Window Fan Coils (FCU)

PTAC Rooftops + VAV

Packaged / Self-Contained + VAV

Traditional HVAC 24v AC Control The “Brains” & User Input

Cool System Y

Fan Relay G

Heat System W

Rc Power Supply Rh

Traditional Smart Controllers with Thermostats Thermostats BACNET

Non -Programmable 24v AC Control Programmable BMS integration R, C, Y1, Y2, W1, W2, P/O, G1, G2, G3 and Smart with or without wifi Honeywell, Honeywell, Aprilaire Nest, Raywall EcoBee, Marley Aprilaire King Etc … Etc...

Small Scale Medium Scale Large Scale Residential Sector Commercial Sector Large-Commercial Sector

Multi-Split Chillers (Inverter / Non-Inverter)

Window Fan Coils (FCU)

PTAC Rooftops + VAV

Packaged / Self-Contained + VAV

Mini-Split (Inverter) VRV/VRF (Inverter)

Inverter Motor Multi -zone Internal Variety of indoor Technology Operation Communication unit types

Variable speed of the Multiple air handlers Each Brand has it’s Wall mounted, Ducted, compressor motor Usually one Unit per zone proprietary built-in Cassettes, in–wall, instead of the traditional communication system Standing, etc’ On/Off HVAC operation

And Refrigerant based coolant

Remote Control Wall Mounted

Indoor Units Communication

Refrigerant Pipe IR Remote

Outdoor Unit (Up to 1 Indoor Unit)

Communication

Remote Control Line (RC) (For original wired remote) Inverter Single Air Cooling & Heating IR (Infra Red) Compressor Handlers Both air-conditioning (no 2 way integration modes available, “Cooling available (no feedback! ) Allows lowering power Multiple Air Handlers consumption with partial (indoor units) on the same Only” and “Heat Pump” High Voltage cooling/heating loads. refrigerant loop / circuit. Communication (outdoor – indoors)

Remote Control Ducted

Communication Ceiling

Refrigerant Pipe Wall Mounted IR Remote Floor Standing

Outdoor Unit (Up to 10 Indoor Units) Indoor Units Refrigerant only

— Where refrigerant is the only coolant material in the Inverter Multiple Air Modular system (in contrary to the Compressor Handlers Expandability chilled water systems, where refrigerant is used Allows lowering power Multiple Air Handlers Especially good for large for cooling/heating the consumption with partial (indoor units) on the same projects, that can grow in water that is circulated cooling/heating loads. refrigerant loop / circuit. stages throughout the whole system).

Cooling & Heating

Remote Control Ducted

Communication Ceiling

Refrigerant Pipe Wall Mounted IR Remote Floor Standing

Ancillary Units

Refrigerant only Outdoor Unit (Up to 64 Indoor Units)

— Where refrigerant is the only coolant material in the system (in contrary to the chilled water systems, Inverter Multiple Air Modular where refrigerant is used Compressor Handlers Expandability for cooling/heating the water that is circulated Allows lowering power Multiple Air Handlers Especially good for large throughout the whole consumption with partial (indoor units) on the same projects, that can grow in system). cooling/heating loads. refrigerant loop / circuit. stages

Cooling only systems Heat Pump systems Heat Recovery systems (most popular)

Heating is not available. Fan and Dry All the indoor units can either heat, or The most sophisticated ones, where modes are available for each indoor cool (not at the same time). Fan and cooling and heating may be available unit independently. Dry modes are available for each by each indoor unit, independently, at indoor unit independently. the same time.

Local Centralized PC Software Gateways Controls Controllers BMS integration Wired Remote Control IR Remote Control BACnet LON MODBus

Inverter HVAC The “Brains” User Input

Energy Consumption Saves up to30%

70%

Non Inverter Inverter (Traditional Outdoor Unit HVAC) (Up to 64 Indoor Units)

Temperature Longer lifespan Lower Noise Lower Power Comfort Levels Consumption Constant operation, no on- off operation, lower wear & The noisy outdoor unit is Due to continuous Room temperature tear outside the house operation can work in fluctuation is minimal, +/- partial loads. 0.5 deg. No startup peaks .

Traditional HVAC Logic Inverter HVAC Logic Logic is Inside the Smart Thermostat Logic is Inside the Smart Indoor & Outdoor

User Input User Input

Logic “Smarts”

User defines his targets User indicates his and analyses the targets and the results of the operation system responds by the cool/heat operation, in the process analyzing own performance.

“So, hey, why don’t I use those nice looking and “smart thermostats” with these “smart” air- conditioning systems?!”

The system is already “smart”, not designed to accept a non-native additional “brain”

Operation logic fundamental difference by design - no Modulation algorithm, just On/Off

Feature set is a subset of the system’s features and functions

One-way “mis”-communication – no feedback, hence, no real control loop

Wiring difference – 5 vs 2, forcing use of logic- conflicting solutions, hence, degradation (digital I/O’s vs communication protocols

“One-way” communication Two-way communication

One-way communication is a basic Two-way communication is fundamental for “send & forget” control method: control systems: - Open control loop due to lack of feedback - Commands are acknowledged, can repeat upon failure - No real-time monitoring - System status (on demand or periodic): state (on/off), set - Inability to handle events & errors point temperature, mode (cool/heat/fan/auto), fan speed, etc. - Events or errors notified - malfunction codes, filter reset sign, room temperature, etc.

As a result – insufficient to implement The VRF air-conditioning system is open of an integrated and automated system integration with an automated system

The VRF HVAC system appears as a “closed-loop” communication Setting units’ addresses is network, where all indoors can be considered as “clients”. part of the HVAC installation.

Prior to beginning of the integration process, the integrator should obtain a list of addresses of the

Unit 101 Indoor units and the corresponding room (space). Unit 102

Unit 103

Unit 104

Unit 105 Central Control Module

Unit 106

Outdoor Unit Uniquely addressed Indoor Units (Up to 64 Indoor Units) (“clients”)

Important for precise and fastest way to reach Ambient Temperature can be the desired comfort temperature. measured from the Indoor unit or from the local wired thermostat controller.

Quite frequently, the facility owner prefers clean walls, no

Unit 101 thermostats – remote sensors will need to be used, their readings fed into the integrated system – even by removing the Wired Remote Unit 104 Control with its sensor, the indoor unit still has its own sensor.

Traditional HVAC Inverter HVAC Predominantly one-way commands A communication exchange between external devices and HVAC systems components

User Input User Input

Logic “Smarts”

PLC, Computer

External Systems

Multiple options: Modbus BACnet LON KNX

Monitoring & Control Control Parameters Monitoring parameters (feedback) Those are the parameters that can be controlled and Operation state (on/off) Operation State (on/off) monitored for each indoor Operation mode Operation mode unit independently: (Cool/Heat/Fan/Dry/Auto) (Cool/Heat/Fan/Dry/Auto) *Auto mode is only available *Auto mode is only available for heat recovery systems for heat recovery systems Set point temperature Set point temperature Fan speed Fan speed (high/medium/low/auto) (high/medium/low/auto) Room temperature Error code (if any) Filter sign notification

Changing HVAC mode Consideration Action) Heat/Cool/Fan/Dry/Auto There is a difference All indoor units should be between the various turned off manufacturers on how the Mode change command modes are changed. should be sent to all the In order to make a indoors in the defined VRF common procedure, there system. is a set of actions to be carried out:

Support Malfunction Consideration Action Codes When an error code The indoor unit can still be Be aware when a notification appears on turned on/off, the fan speed malfunction code appears the HVAC wired remote, might work, but the led on in the VRF system it should show via Home the wired remote will blink, Automation as well (so and the whole HVAC system that the HVAC installer will not function properly may handle and (won’t cool or heat). At this resolve the issue). point system may not accept any command from Home Automation

Small Scale Medium Scale Large Scale Residential Sector Commercial Sector Large-Commercial Sector

Multi-Split Chillers (Inverter / Non-Inverter)

Window Fan Coils (FCU)

PTAC Rooftops + VAV

Packaged / Self-Contained + VAV

Mini-Split (Inverter) VRV/VRF (Inverter)

Multi-Split & Mini-Split VRV / VRF Chillers & Packaged

CoolPlug + CooLinkHUB CoolMasterNet CooLinkBridge

HVAC

Multi—HVAC systems Multi-device support CoolRemote cloud Connect, monitor and CoolMasterNet, Access to HVAC data, control multiple HVAC CooLinkNet and OEM analytics from thousands system types. bridges, provide realtime of devices. two-way data link to HVAC All communications are CoolRemote App systems via the Cloud. secure and respectful to CoolRemote, a simple end-customer privacy. cross-platform App to control and monitor Air Conditioning systems remotely.

CoolMasterNet

NEST API VRF system

VRF support: NEST thermostats wired to 24V power supply and connected to Nest cloud via WiFi. Nest’s send commands thru Nest cloud to CoolRemote cloud and on via the CoolMasterNet to the VRF units.

Home Automation BMS Nest

Main controls and Hospitality, Remote Control service Multi-Dwelling

To improve our content in the future, we would greatly appreciate your feedback on this presentation.

Please, use this link to answer 5 quick questions and help us learn from you. https://vicky411.typeform.com/to/y2Wfxk