SEGMENT 5 ZONING PRINCIPLES

1
SEGMENT 5ZONING PRINCIPLES
2
INTRODUCTION TO ZONING

• Static regain zones better than conventional
• 3 ways to zone
• Variable CFM out of the blower to match Static
  Pressure / Zones calling
• Bypass excess air
• Bypass to a dump zone
• Bypass to return
• Increase the number of outlets in each zone

3
The Realities of Zoning Success

• Increased Available Supply static pressure when
  Low load zones satisfy
• Increased Branch duct velocity delivers Colder,
  Dryer air (more BTUs to the space) when
  available supply static increases.
• Decrease in coil velocity increases BTU/CFM
  transfer
• Coil icing issues only occur when set point is
  not achieved causing extended cycle time.

4
ZONE PAKDAMPER SYSTEM
5
Joes House
Zone 1 - 1st Fl Living Area (565 sq ft)
Porch
Zone 2 - 1st Fl Kitchen/Dinning Area (500 sq ft)
Zone 3 - 2nd Fl Bed Rooms (825 sq ft)
2nd Floor
1st Floor
Porch
1900 Total Sq Ft Two stage, variable speed, 70k
BTU furnace Single stage, 2 ton A/C Zone Pak
Pro-3 Zone panel (W2 initiated when the 2nd fl
zone calls w/ any 1st fl zone)
Porch
6
HPPro Zoning Data
Joes House
Data time range 16,522 min 275
hrs 11 days Min ODT 19 deg f
Max ODT 55 deg f Avg ODT 36
deg f Total Run Time - 150 hrs 2nd stg
Heat- W2 20 hrs 13 Serving Zone 1 (1st fl
Main) 111 hrs 74 Serving Zone 2 (1st
fl kitch) 53 hrs 35 Serving Zone 3
(2nd fl Bd Rms) 36 hrs 24 Serving Single
Zone 72 Serving Two
Zones 25 Serving All Three Zones
3 W1 Cycle data Total cycles 589
Avg Cycle On time 16 Min Avg Cycle Off time
8 Min Avg Cycles/Hr 2
7
Joes House
HPPro Zoning Data
Data time range 5 days Min ODT
78 deg f Max ODT 91 deg f
Avg ODT 84 deg f Total Run Time -
39 hrs 2nd stg Blower- Y2 38 (Y1 only
62) Serving Zone 1 (1st fl Main) 3 Serving
Zone 2 (1st fl kitch) 38 Serving Zone 3 (2nd
fl Bd Rms) 62 Serving Single Zone 70
Serving Two Zones 29 Serving All Three
Zones 1
8
BENEFITS OF ZONING

• Greater Occupant Comfort
• Allows for Decreases in System Capacity Demand
• Increased Installation Flexibility
• Reduced Energy Consumption

9
Market Impact

• Zoning makes any system more effective
• This is especially true for heat pumps that can
  at times be capacity limited. Concentrating the
  conditioned air to those areas that need heat or
  cool just makes sense.
• Staging on Capacity
• Presently only the highest end equipment has the
  capability to adjust its capacity based not only
  on thermostat demand but on equipment capacity.
  Space Pak has taken a large step toward making
  heat pumps an option for more areas of the
  country.

10
Two Zone Layout

• 1st Fl Living area is 60 of the duct capacity
• 2nd Fl Bed Room Zone is 40 of the duct capacity

2nd floor Bedroom
Zone
40
st floor Living Area 60
11
Three Zone Layout

• 1st Fl Living area is 50 of the duct capacity
• 2nd Fl Master suite is 25 of the duct capacity
• 2nd Fl Bed Rooms 1 2 are 25 of the duct
  capacity

Master Suite 25
Bedroom 1 12
Bedroom 2 13
1st floor Living Area
50
12
SEGMENT 6 ZONING COMPONENTS
13
STANDARD ZONE PAK FEATURES

• 2 or 3 zones with one air handler
• Controls integrate with any secondary heat
  source
• Reliable operation provided by Air-Driven
  Dampers
• Easy to install vinyl tubing

14
Reduced Energy Consumption

• Simple 24 Volt Wiring
• Quiet Operation
• Pre-Programmed Controls
• Convenient Packaged Systems
• Unmatched Factory Support

15
PLENUM DAMPER PACKAGES AVAILABLE

• 8" Square 2-Zone System
• 8" Square 3-Zone System
• 9" Round 2-Zone System
• 9" Round 3-Zone System
• SmartPak System 2-Zone System
• SmartPak System 3-Zone System

16
PACKAGES INCLUDE

• Plenum Dampers
• Control Panel
• 24 Volt Transformer
• Tubing
• Cut-Out Templates

17
BRANCH DAMPERS

• 2" Branch Dampers - 2/pack
• 2" Branch Dampers - 5/pack
• Control Panel selected separately for 2 or 3
  zones
• Can be used in conjunction with plenum dampers

18
ZONE PAK PRICE SHEET
19
Market Impact

• High efficiency equipment can be made even more
  efficient with the power of zoning.
• Airflow can be manipulated based on zone weight
  so we have a lesser need for bypass which impact
  actual delivered efficiency.

20
Market Impact

• Humidity Control comfort is not just about
  temperature. Humidity has a large impact on how
  comfortable we feel.
• The Zone Pak Pro provides systems for
  humidification and positive control of the bypass
  humidifier duct.
• The Zone Pak Pro allows you to run a
  dehumidification cycle using standard equipment.
  You no longer need equipment with a dedicated
  Dehum cycle. Fight moisture build up and mold
  in humid climates. Keep everyone more
  comfortable.

21
Market Impact

• The Zone Pak Pro Steps out of the 20th century
  and into the 21st.
• It has been designed to give contractors
  abilitites that have never been available before.
• It has a great new look. The LCD screen makes a
  statement to todays tech savvy consumers
• It is entirely software driven. There are no dip
  switches. The adaptive program walk installers
  and technicians through with no confusion.
• Use ANY thermostats that make sense for your
  application. Zones 2-4 use only 4 or 5 wire
  heat/cool stats. New installers will have no
  problems with this unit.

22
SEGMENT 7ZONING RULES
23
Design Considerations

• Design DX systems with 2 or 3 zones max.
• Unlimited with Chiller applications
• All zones must have a minimum of 3.5 outlets per
  ton (per zone)
• 4 ton system
• 4 x 3.5 14 outlets per zone minimum
• 3 zones x 14 outlets 42 outlets total
• 42 outlets divided by 4 tons 10 outlets/ton
• 2 zone systems can be designed with as high as 5
  outlets per ton per zone (10/ton total outlets)
• Not recommended to use a bypass duct on DX coil
  systems

24
Basic 2 and 3 Zone SystemMinimum Outlet Required
In Each Zone
System Tonnage 2 Zone of Outlets in each Zone 2 Zone System Total Outlets 3 Zone Outlets in each Zone 3 Zone System Total Outlets
2 7 7 w/ 14 7 21
2.5 9 9 w/ 18 9 27
3 11 11 w/ 22 11 33
3.5 12-13 12 w/ 24 12 36
4 14 14 w/ 28 14 42
5 18 18 w/ 36 18 54
25
(No Transcript)
26
Zone 2 Load requires 6 Outlets
3 ton 2 Zone (3 ton X 3.5 11 outlets per zone
minimum) Z-1 15 Outlets (5/ton) Z-2 11
Outlets (3.5/ton min) 26 outlets Total 8.5 / Ton
Zone 1 Load requires 15 Outlets
27
2.5 ton/ 3 Zone (2.5 ton X 3.5 / ton 9 outlets
/ zone) 27 outlets Total 10.5 / Ton
28
4 ton/ 2 Zone (4 ton X 3.5 / ton 14 outlets /
zone) 28 outlets Total 7 / Ton (2 Zone Option -
5 Outlets/Ton/Zone)
29
2.5 ton/ 2 Zone (2.5 ton X 3.5 / ton 9 outlets
/ zone) 18 outlets Total 7 / Ton (2 Zone Option
- 5 Outlets/Ton/Zone)
Duct sizes Square 8.5" x 8.5" (All
Duct) Round Common Trunk - 9" Zone Trunk - 7"
30
Air Schematic
To Zone 2 dampers
To Zone 1 dampers
24 V DC Solenoid
24 V DC Solenoid
N/O to Vacuum
De-energized 0 VDC
Energized 24 VDC
N/C to Pressure
R W1 W2 Y1 Y2 G O B C
1 2 3 4
HVAC OUTPUT
ZONE SOLENOID
ZONE 1
ZONE 2
On MPS Off
AirBoss-2 PC Brd
PUMP
Vacuum Side of Pump -30 to -40 WC
Pressure Side of Pump 40 to 50 WC
24 VAC
31
Reverse-Acting Dump OutletsThe Alternative to
Bypass CFM

• Add additional outlets to dump areas that are
  controlled by reverse acting dampers and open
  when larger zones close.
• Be careful not to overdue it

32
Dump (static relief) Zone
33
USING THE ACM TO SET BACK AND MATCH 2 SPEED
CONDENSER
STEP 1 REFER TO THE CFM SET FOR
MAXIMUM CONDENSER CAPACITY. STEP 2 DETERMINE
THE SET BACK CAPACITY OF THE CONDENSER. ALL
MANUFACTURERS SET BACK A OF TOTAL CAPACITY.
SOME SET BACK 30, 35, 40 OR 50. STEP 3
MULTIPLY THE TOTAL CFM FOR MAXIMUM CAPACITY BY
THE SET BACK. THIS WILL GIVE YOU A CFM TO
SUBTRACT FROM THE TOTAL. STEP 4 SUBTRACT THE
CFM FROM STEP 3 FROM THE TOTAL. STEP 5 FIND
THE SET BACK CFM ON THE ACM AMP CHART STEP 6
SET THE ACM BY READING AMPS TO THE MINIMUM
POSITION.
34
Dump (static relief) Zone
35
Pressure TransmitterExcessive Static Press
Supply Duct
Pressure Transmitter
H V Control
1 to 2 Press range
Variable Bleed-Off
Variable Pressure 0 to 20wc
Pump Pressure _at_ 45wc
.012 Restrictor
36
3 Zone with 6 Round Bypass DuctOn A chiller
37
Market impact

• Programmability
• The Setup Wizard walks the installer through a
  series of very simple setup parameters.
• The setup worksheet gives the installation
  manager or Comfort consultant an easy way to tell
  installers just how they want the system to be
  configured.
• Once the Setup Wizard is complete the parameters
  are burned into non-volatile memory. Loosing
  power will not reset your settings.

38
ZONEPAK PRO PANEL
39
ZONE PAK PRO
PRODUCT DESCRIPTION The Zone Pak Pro is the
first non-proprietary, residential and light
commercial, zoning system that hasbeen designed
specifically for heat pumps. It has been designed
on a very robust hardware platform withsoftware
that will allow the contractor to make any heat
pump perform to its maximum effectiveness. Zone
Pak Pro has several innovative operational
features Staging on "Capacity" as well as
Demand. Never feel "cold blow", if the heat pump
does not have thecapacity to heat or cool the
air to a sufficient degree, then it will
automatically stage up. The consumer willnot
have to wait for the thermostat to start to
"droop" before the equipment reacts. This feature
alsoreduces or eliminates the need for two-stage
the thermostats. Staging on "Zone Weighting". The
Air Handler "stages" independently from
condensers giving theuser more flexibility.
Zoning Weighting reduces or eliminates the need
for a bypass and matches theCFM to available
ductwork. We can also "throttle back" the air
handler to improve latent heat removal. Simplified
Thermostat choices and wiring. The Space Pak
Zone Pak Pro is compatible with anyconventional
24VAC thermostat including Wireless, Auto/Manual
changeover. Programmable andNon-programmable.
Zone 1 will accept any Heat/Cool or Heat Pump
thermostat. You can customizehow the system
operates by the thermostat you choose. A Heat
Pump thermostat can be used on Zone 1for remote
control of emergency heat. Zones 2-4 use standard
four- or five-wire single stage Heat
/Coolthermostats. Zones 2-4 just register a call
for heating, cooling, or fan so simple
thermostats are all that isnecessary. Wfor Heat.
YG for cooling or just a G for fan. nothing could
be easier. The Zone Pak Pro has built in
Humidification and Dehumidification
functions. Additional Built-in Controls-Our
software incorporates these features The
Fossil Fuel feature replaces the need of a fossil
fuel kit. The High / Low LAT Limits provide
the equipment protection at reduced CFM
operation. - The Zone Pak Pro incorporates both
Leaving Air Temperature and Outside Air
Temperaturesensors. The Field Adjustable Low
limit for cooling replaces Low-Ambient Kit. The
software adjusts staging points just like an
outdoor reset controller. - The OAT Sensor
replaces an Outdoor Thermostat for balance point
changeover.Resistance Heat Lockout set point
satisfies many utilities' rebate program
requirements for loadreduction and replaces an
additional auxiliary temperature control.
40
ZONEPAK PRO PANEL
41
Setup Wizard

• The first time the system is powered up the
  Installer must run through all of the Setup
  questions. This sets all of the default
  settings.
• Subsequent times if no changes are made in 30
  seconds the system will power up using its
  current default settings

42
Stage on Demand

• The Zone Pak Pro accepts two-stage inputs from
  the Zone 1 thermostat.
• Demand will be recognized and served.

43
Stage on Capacity

• Heat pumps provide a finite amount of heat or
  cool in any given operating mode.
• This graph shows a simple single-stage scenario.
  
• Call starts
• ?T (the change in temperature over any given
  time) increases rapidly as the refrigerant starts
  to circulate
• ?T starts to decrease, finally going to zero as
  the equipment capacity is reached.

44
Zone Pak Pro PanelCapacity Staging
3rd stage Heat initiated
2nd stage Heat initiated
Pre-Set LAT Min (Leaving Air Temp Minimum)
Heating cycle reaches Steady State LAT above
Min heating LAT setting
Heating cycle initiated
45
Zone Weighting

• Zone weighting gives The Zone Pak Pro several
  distinct advantages
• We are able to stage up the air handler
  independently of the condenser based on the
  amount of ductwork being served. This reduces or
  eliminates the need to bypass increasing system
  effectiveness.
• Priority can be based on the cumulative zone
  weight calling for any particular service.

46
Air Handler Control

• Staging the Air Handler(s) independently from the
  condensers gives us a very powerful tool to
  affect comfort.
• Only stage up the Air Handler when there is
  enough ductwork open to accept the air provided.
• Throttle back the air handler for
  dehumidification.
• Controlling fan speed provides another tool for
  customizing your customers comfort.
• Provides warmer air delivery to single zone
  callers.
• Reduce or Eliminate the need for bypass.

47
Humidification

• On a call from a humidistat
• Send a 24VAC signal to the humidifier
• Open a damper in the humidifier bypass ductwork
• Eliminates the homeowners need to open or close
  a manual damper

48
Dehumidification
The Zone Pak Pro has the ability to operate as
a whole house dehumidifier.

• Standard Equipment
• On a call from a Dehumidistat
• If cooling back off one cooling speed setting
• If not cooling start the condenser and low speed
  fan
• Run the system on and off on a user defined cycle
  period.
• Inhibited during heating cycles

• Lennox Signature/Carrier Infinity
• Pass the call to the proprietary equipment
• Inhibited during heating cycles

49
Built-In Controls

• Balance Point Calculations no need for an
  outdoor thermostat.
• Resistance Heat Lockout control holds off
  resistance heat above a given temperature to
  comply with utility regulations or incentive
  programs
• Low-ambient cooling no need for a low-ambient
  kit, ZPP inhibits cooling below an adjustable
  temperature automatically.
• Outdoor Reset Controls adjusts Leaving Air
  Temperature requirements as outside air
  temperature changes.
• Leaving Air Controls protects HVAC equipment

50
Leaving Air Temperature SensorHeating

• Protects the HVAC Equipment from extreme
  temperatures

• Heating LAT trips 2nd stage 10oF below
  setpoint, and the 1st Stage at setpoint.
• 1st stage is reconnected on a temperature fall of
  15o and 4 minute off-time.
• Up staging is inhibited within 15o of the setpint
• Calls that contain a W will use the Backup Heat
  LAT Setting

The LAT System is a secondary control. It
should be set inside factory limits.
51
Leaving Air Temperature SensorCooling

• Protects the coil from freezing

• Cooling LAT trips 2nd stage 5oF above setpoint,
  and the 1st Stage at setpoint.
• 1st Stage is reconnected after a temperature rise
  of 10o and 4 min off-time.
• Up staging is inhibited within 10o of the setpoint

The LAT System is a secondary control. It
should be set inside factory limits.
52
Equipment Integration

• The Zone Pak Pro has been designed with all the
  features you need to control virtually any heat
  pump.
• All Electric
• Dual Fuel
• Geothermal

53
Thermostats

• Zone 1 Use any thermostat that provides the
  features you need. Heat/cool or Heat pump,
  single or two-stage, wired or wireless. You can
  use the thermostat that gives you the control you
  want.
• Zones 2-4 Use simple 4 or 5 wire heat cool
  thermostats. This simplifies installation and
  planning.

54
Software Driven

• The key to the flexibility and adaptive nature of
  the Zone Pak Pro is the fact that it is 100
  software driven.
• Most settings and timers are field adjustable
• System changes and upgrades can be sent by email
• System will be more end-user friendly

55
Set up Wizard zpp
56
The Setup Worksheet
57
Apply the Template
58
Cut out the Triangle
59
Insert the Damper
60
Twist into Position
61
Fasten with Zip Screws
62
Attach the Air Line
63
Finished!