SpacePak Small Duct High Velocity System Installation Guide
- June 25, 2024
- SPACEPAK
Table of Contents
SpacePak Small Duct High Velocity System
Product Information
Specifications
- Product: Small Duct High Velocity (SDHV) Heating & Cooling System
- Manufacturer: SpacePak
- System Type: Small Duct High Velocity Hearting and Air conditioning distribution system
Principles of Operation
The Small Duct High Velocity (SDHV) system by SpacePak offers efficient heating and cooling distribution. It provides uniform, draft-free comfort with a focus on space and efficiency. The system is designed to deliver high BTU outputs in a compact space compared to conventional duct systems.
Outlet Orientation
The system’s outlets are oriented horizontally to ensure optimal performance and comfort.
Motor & Blower
The system operates with a static pressure of 1.2 – 1.8 inches WC and delivers 220 to 250 CFM per nominal ton, providing efficient airflow for heating and cooling.
Static Pressure Check
During commissioning, start with a static pressure check to ensure proper system operation. The static pressure should remain consistent throughout the plenum.
Air Handler
The J Series Air Handler by SpacePak comes in different models to suit various installation needs, including ESP (DX Coil) and WCSP (Water Coil) models in horizontal and vertical configurations.
Air Handler Models
- ESP-J: DX Horizontal
- ESP-JV: DX Vertical
- WCSP-J: Hydronic Horizontal
- WCSP-JV: Hydronic Vertical
Air Handler Compatibility
The ESP-J Series DX Horizontal Air Handler can be paired with compatible condensers. Check the AHRI website for certified matches. SpacePak is also working towards compatibility with the upcoming A2L refrigerant requirements.
Product Usage Instructions
Installation Training
For installation training and support, contact Jim Bashford, the SpacePak National Sales & Training Manager, or reach out to the Field Support team for pre-sale application assistance.
Frequently Asked Questions
- Q: Where can I find local field support for pricing and project questions?
- A: For local field support, including pricing, availability, and project inquiries, contact your local SpacePak Representative. Visit www.spacepak.com/RepLocator for contact information.
Small Duct High Velocity Installation Training
1
Meet Your Trainer
Jim Bashford
SpacePak National Sales & Training Manager
Jim has been with SpacePak for seven years and is currently the National Sales
and Training manager. Whether in the classroom, on a job site, or on a
podcast, you can be sure he’s bringing real hands-on experience and knowledge
to every conversation. Before joining the SpacePak team, Jim was a
manufacturer’s representative, working with a variety of HVAC products. He has
over 24 years of experience in the HVAC industry which includes experience as
a contractor and business owner where he spent many years selling and
installing SpacePak products.
8
Field Support
Pre-Sale Application Support Team
[email protected]
Available to Representatives, Wholesalers and Contractors · System application
support · Equipment selection · Load calculation and rough material list
Any questions regarding equipment already shipped should be directed to
[email protected] (413) 564 – 5530
15
Field Support
Local Representative Support
For all local field support, including pricing, availability, and project
questions, please contact your local SpacePak Representative. For contact
information visit: www.spacepak.com/RepLocator
16
Contractor
Warranty Policy
Small duct high velocity, hydronic fan coils, & associated equipment
Standard Warranty · 1-year parts Extended Warranty · 5-year parts
Extended Warranty Requirements
· Must be listed as a SpacePak Certified Contractor at time of installation
· Must register project/equipment via the website
18
Contractor
Certified Contractor Program
· Extended warranty · Listed on website · Homeowner leads · Pre-sale support
· Marketing support co-op dollars with project registration
19
Contractor
Contractor Locator Map & Lead Generation
Your Company
Here
20
Contractor
Homeowner Leads Emailed Directly to you
NOTE: Extensive form guarantees
only serious inquiries.
21
The System
Small Duct High Velocity (SDHV) Heating & Cooling
· SpacePak delivers uniform, year-round comfort, with fewer of the unwanted
challenges common to other central heating and air-conditioning systems.
Making sure there are:
· No Major Renovations · No Loss of Usable Floor Space · No High Energy Bills
· No Unsightly Components
· Simply quiet, cost-effective comfort for virtually any home or building,
regardless of the structure’s design, age, size, or construction type.
· SpacePak is an air distribution system which uses a principle known as
aspiration – as the air stream enters the room, it creates a gentle mixing of
air in the room to provide thorough, comfortable draft-free air circulation.
· SpacePak eliminates stratification with a minimum floor-to-ceiling
temperature difference.
28
SpacePak is a Small Duct High Velocity Hearting and Air
conditioning distribution system
Principles Of Operation
Comparing Conventional Duct Space Vs. Small Duct Space
When space and efficiency counts
21″
CONVENTIONAL TRUNK
9″
60,000 Btu Cooling
90-120,000 Btu Heating
2 SDHV MAIN TRUNK SIZE 120,000 Btu
SAME SPACE. MORE BTU’s.
10″
1 CONVENTIONAL DUCT 2,000 Btu cooling
6 SDHV DUCTS
2″
3,000+ Btu Heating
12,000 Btu
30
Principles Of Operation
Uniform, Draft-Free Comfort
· The SDHV air distribution system utilizes a principle known as aspiration.
· As the air stream enters the room, it gently and continuously mixes air to
provide uniform, draft-free air circulation.
· Eliminates stratification with a less than 2°F floor-to-ceiling temperature
differential.
31
Principles Of Operation
Conventional Air Distribution
· Diffusion, throw, & return · Conventional units generally need
individual returns for every room · Needs complete air change · Works for and
is generally designed
for heating or cooling applications. NOT BOTH.
32
Principles Of Operation
Outlet Orientation
H O R I Z O N T A L
D
V
O
E
W
R
N
V
U
T
E
P
I
F
R
C
L
T
F
A
O
I
L
L
W
C
O
A
W
L
33
Principles Of Operation
Motor & Blower
SPACEPAK
1.2 – 1.8 + INCHES
WC STATIC PRESSURE
220 TO 250 CFM
PER NOMINAL TON
CONVENTIONAL
.5 INCHES
WC STATIC PRESSURE
350 TO 400 CFM
PER NOMINAL TON
34
Principles Of Operation
STATIC = EQUAL PRESSURE ON ALL INSIDE SURFACES
1.3″ W.C.
35
Principles Of Operation
The Process of Static Regain (Its about the pressure)
In. W.C.
In. W.C.
MAIN PLENUM
36
Velocity to CFM
Delivered At 37-40 CFM
Static Regain
System layout and target pressures
Principles Of Operation
Static Pressure Check
Note: This is the first place to start during commissioning then we move on to
delivered CFM
No Outlets
Note: In a properly designed system, the static pressure should remain very close to the same throughout the length of the plenum.
18” off blower MAX 1.3” in W.C.
39
?
Questions
40
Air Handler
J Series Air Handler
41
Air Handler Location within the system
AIR HANDLER
J Series
ESP Model (DX Coil)
WCSP Model (Water Coil)
ESP-J
DX Horizontal
ESP-JV
DX Vertical
Available in 3 sizes
WCSP-J
Hydronic Horizontal
WCSP-JV
Hydronic Vertical
Note: Units are not field convertible
43
AIR HANDLER
ESP-J Specifications
44
AIR HANDLER
ESP- J Series DX Horizontal Air Handler
45
AIR HANDLER
ESP- J Series DX Horizontal Dimensions
46
AIR HANDLER
ESP- J Series DX Horizontal Air Handler
Match up with your favorite condenser! Visit AHRI website frequently to see
the growing list of certified matches
SpacePak is currently in process for testing and approval for air handler
compatibility with the upcoming A2L refrigerant requirements.
47
AIR HANDLER
ESP- J Series DX Vertical Air Handler
48
AIR HANDLER
ESP- J Series DX Vertical Dimensions
49
50
CONTROL
J Plus Control Board
· More features and benefits for the contractor · Digital display screen ·
Screen displays (operating mode, cfm, %
speed, S.P.) · Speed is controlled by a static pressure tap on
the blower · Simpler wiring with less components · Infinite speed variation ·
Easy load matching · Temperature sensors allow for delayed fan
operation · IAQ FRIENDLY!!!!!
51
CONTROL
J Plus Control Board
52
· TBD · TBD · TBD
53
AIR HANDLER
SUPERIOR COIL
· 6-row copper coil · More coil surface = greater humidity removal · 30% more
moisture removed · More Btus at lower CFMs · Up to a 28°F air delta across the
coil · Colder discharge allows for lower volumes of
air movement · Suitable for R-410A refrigerants
54
AIR HANDLER
SUPERIOR COIL
· With more moisture removed a higher temperature set point will feel “Cooler”
55
AIR HANDLER
Coated Replacement Coils
56
AIR HANDLER
TXVS: Then & Now
Note: Our current chatliff TXV has NO internal check valves, so it is suitable
for use in air-to-air heat pump applications.
57
AIR HANDLER
Condensate Trap Assembly
· The proper installation of the trap is critical to the correct operation of
the system!
· Supplied by SpacePak
58
AIR HANDLER
EEH Direct Mount Electric Heater
6 Sizes Available
2kw 5kw 7.5kw 10kw 15kw 20kw
59
AIR HANDLER
Additional Heating & Cooling
60
AIR HANDLER
EEH Electric Heating Mounting & Wiring
61
AIR HANDLER
Hot Water Coil
62
AIR HANDLER
Hot Water Coil Installation
63
AIR HANDLER
Hot Water Coil Installation Location
64
AIR HANDLER
BasePak Secondary Drain Pans for Horizontal Fan Coils
65
AIR HANDLER
Hot Water Installation with Drain Pan
Hydronic Coil
Return Flex Duct
Support for Coil
Auxiliary Drain Pan (not factory supplied) Note: Be sure that the drain pan
installed is large enough to protect anything that may drip, this is cheap
insurance!
66
?
Questions
67
The Return
Option of Central or Multiple Returns
68
RETURN
Locate and Roughing in the Return
· Central Location (Hallway/Foyer) · All Equipment Can Fit through the
Return Hole Cut Including the Air Handler · Be Sure to Have More than Enough
Return Air for the System · Do Not “Skimp” On Return. You cannot have too
much.
69
RETURN
Return Basics
· Air Mixing vs. Air Change · Less Return Air Volume · Cooling And Heating By
Temperature,
Not Volume · One Central Return Is Sufficient · Multiple Returns Are Okay ·
Smaller Return Air Duct Than
Conventional · You can never have too much return
air!!!!
70
RETURN
Return Basics
· Size Return in each location for less than 500 FPM (similar to conventional)
· Size Return in each location for a total -.25″ static or less including the
filter · Install at least One 90-degree elbow (this will aid in the abatement
of unwanted noise) · Return Box must be lined with sound attenuation material
(also for noise abatement) · Size transfer grills for the CFM and Free Area
(use standard duct sizing chart)
Note: If return creates to much “suction” over -.5″wc this suggests the lack
of return air and creates the potential to cause issues with proper condensate
draining resulting in faults or water damage.
71
RETURN
Return Considerations
Flexible Return Duct
(90°bend)
Model
ESP-2430 ESP-3642 ESP-4860
Return Duct
15″ 19″ 24″
NOTE: When return lengths of longer than 10ft exist, using a standard return duct sizing chart at 500 FPM and no more than -0.25” WC may be necessary for proper upsizing.
120″ MAX. (10′ of duct)
48″ MIN. (4′ of duct)
Return Air Box
Platform & Drain Pan
72
RETURN
Central Floor Return
This was a central return for (1) 5-ton heating and cooling system (approx. 30″ x 30″)
73
RETURN
Best Practices for Multiple Returns
MULTIPLE RETURN ACCEPTABLE DUCT SIZE BY TONNAGE
ROUND DUCT SIZE, THESE SIZES WILL INSURE A QUIET AIR SPEED OF LESS THAN 500
FPM
AIR FLOW
10′ OR LESS 10′ TO 20′ 30′ TO 40′
10′ OR LESS 10′ TO 20′ 30′ TO 40′
2 TON 440
9″ 10″ 11″
8″ 8″ 9″
2.5 TON 550
10″ 11″ 12″
9″ 9″ 10″
3 TON 660 2 RETURNS
11″ 12″ 13″ 3 RETURNS
9″ 10″ 11″
3.5 TON 770
12″ 13″ 13″
10″ 11″ 12″
4 TON 880
13″ 13″ 14″
12″ 12″ 13″
5 TON 1100
15″ 15″ 16″
12″ 12″ 13″
74
RETURN
Multiple Returns Example
75
RETURN
IAQ Options (J Series + Control Board)
Note: Aftermarket air cleaning solutions are okay to use, but please be sure
that the correct amount of return air is maintained, and that the third-party
product is certified for use with SDHV.
76
?
Questions
77
Main Trunk
78
MAIN TRUNK
Maximum Allowable Plenum Length
250 ft (or equivalent) at 9″ Round IF: · All fittings are long radius · The
system is sealed to stop duct leakage
“completely” · Fittings reduce length by:
· 30 ft for Tees · 15 ft for Elbows
79
MAIN TRUNK
Main Trunk Line “Topics”
· Static Regain replaces Static Reduction · Allows simpler rules for design ·
Easier installation practices · Less energy loss · More plenum/Less duct=$$
80
MAIN TRUNK
Plenum Rules & Topics
· Plenum requirements and allowances · Round, Rectangular and Square will work
· Minimum and Maximum allowable run
lengths · Fittings (tees, elbows, couplings and endcaps) · Most Common
Mistakes
81
MAIN TRUNK
Plenum Size
9-inch round = 64 square inches · 8 X 8-inch square · 7 X 9 rectangular · 6 X 11 rectangular · 5 X 13 rectangular · 4 X 16 rectangular · 3 X 21 rectangular
64 sq. in.
64 sq. in.
82
MAIN TRUNK
Smart Seal Pipe & Fittings
Standard Smart Seal System Duct Features · Approved to SMACNA Duct
Construction Standards
and Leakage Class 3 · 100% Leak Resistant (to 10″ W.C.) · Fittings & Couplings
Have Factory Installed Gasket · Operating Temperature Range -20°F to 212°F ·
Gasket is on the Leading Edge of Fittings, Allowing
Substantial Space for Screw Insertion · Recyclable Material · Contains up to
58% Recycled Materials · Eligible for LEED Points · Significantly Reduced
Installation Time
83
MAIN TRUNK
Smart Seal
The Smart Seal will keep in the pressure and keep out any contaminants
84
MAIN TRUNK
4 Main Plenum Configurations
The Shotgun
Fan Coil Unit
Horseshoe
Fan Coil Unit
Side Branch
Fan Coil Unit
Perimeter Loop
Fan Coil Unit
85
MAIN TRUNK
Minimum Plenum Length Determined By
· 18” from outlet of the blower before a 2” take off · 18” from a fitting
before a 2” take off · 18” from the end cap before a 2” take off · 6” on
center between take-offs “minimum”
So, with straight pipe you can have a “short” plenum even at larger tonnage
outputs
87
PLENUM LAYOUT
Horseshoe
Minimum 18” after the blower & before a tee, elbow, or 2” take-off
No Outlets
Maximum 60% capacity on one side
88
PLENUM LAYOUT
Side Branch
Maximum 30% capacity
9″ RND
No Outlets
Minimum 18” after the blower & before a tee, elbow, or 2” take-off
9″ RND Maximum 70% capacity
89
PLENUM LAYOUT
Straight Duct aka Shot Gun
9″ RND w/40% of Total Outlets
A
DESIGN RULES FOR RETRO-FITTING B & C MODEL SERIES AIR HANDLERS TO NEWER D, E,
F, G, J SERIES EQUIPMENT A: No outlets in the first 18″ of straight pipe
coming off the Air Handler B: Minimum distance between outlets is 6″ on center
C: Minimum distance when placing an outlet from end cap is 12″ D: NEVER place
an outlet in the End Cap
D B
7″ RND w/60% of Total Outlets
C
90
PLENUM LAYOUT
Example of a Side Branch Tee
Former G Series
91
PLENUM LAYOUT
Shotgun layout with a Tee
93
PLENUM LAYOUT
50/50 Split
System One
60/40 Split System Two
No Outlets Here
60/40 Split
94
PLENUM LAYOUT
Perimeter Loop
Note: Takeoffs can be evenly spaced or mostly one side or the other, the 50/50
rules do not apply when dealing with a perimeter loop. This set up will
balance regardless of the layout.
95
LAYOUT
What do you see wrong?
96
LAYOUT
What do you see wrong?
97
?
Questions
98
RETROFIT
RETROFIT CONCIDERATIONS!
· Just because a 2-, 3- or 5-ton unit was installed DOES NOT mean the same
unit can go back in without looking at the existing system, its layout and
available CFM’s
· IT IS STILL GOOD TO DO A LOAD CALCULATION. Many times, if a system has been
installed for many years there may have been considerable efficiency
improvements to the home. Ex.(the house may no longer require 5 tons of
cooling due to window, roof and insulation upgrades)
· Count the total existing supply terminations · If the blower in the existing
system runs (even if the condenser does not) turn it on and take CFM readings
at ALL outlets. Confirm
total available CFMs are equal or greater than the amount required for the new
system. (220-250 CFM PER TON) · Verify, when possible, the main trunk “inside”
diameter and overall length · If the evaluation of the existing system reveals
anything that may lead to the new system not operating properly without
improvements, please note the specifics on your installation proposal.
103
?
Questions
104
Plenum Take-Offs
2” Supply Take-Offs
Main Plenum
PLENUM TAKE-OFFS
Plenum Take-Off Installation
106
PLENUM TAKE-OFFS
Pliers
2 and 1/8” Hole Saw Pliers Part # BM-6998
Note: Be sure to install ALL 4 retainer clips on each takeoff to maintain a
good seal
107
PLENUM TAKE-OFFS
Plenum Take-Off Kits
Note: You will receive these in the box
108
SUPPLY TUBING
Supply Tubing
109
SUPPLY TUBING
Supply Tubing
Available in R-6 and R-8 V R-6 is ordered in boxes of 100 Feet R-8 is ordered
in boxes of 75 Feet
Note: Local building codes will be the deciding factor in your R-Value
required for installation
110
SUPPLY TUBING
Supply Tubing
111
SUPPLY TUBING
SpacePak Supply Tubing Machine, Farmville North Carolina
112
SUPPLY TUBING
Supply Rules & Topics
· 6-7 outlets minimum per Ton on an AC-only · In cooling only above 5000′ use
8 outlets per ton and above 6500′ use 9 outlets per ton · 7-8 outlets minimum
per Ton on a Heat Pump System (due to higher coil pressures) · 2,000 BTUs per
outlet (fully rated) in Cooling at 37 cfm · 3,000 BTUs per outlet (fully
rated) in Heating at 37 cfm · Outlet placement in a room · Room-by-room load
Calculations to ensure the number of outlets in a room · Best length of a duct
run (includes sound attenuator) · Maximum length of a duct run (9′ to 15′ this
length includes the 3′ sound attenuator) · If the termination “hole” is closer
to the trunk than 9 feet you can also loosely coil the supply (not tight)
113
SUPPLY TUBING
Best Length of Duct Run
· Best length to balance the outlets run: 9 to 15 feet (with attenuator) ·
Shorter than 9 feet work with duct orifice balancers · Longer runs work if
more runs are added to make up for the CFM lost · 10% rule (after 15′ of
supply run you lose 10% for every additional 5′) Loss of CFM and BTU’s · CFMs
directly affect the amount of Btu’s delivered
114
SUPPLY TUBING
Kwik Connects / Radius
· Minimum 4″ radius for tubing · For tighter radius use ridged elbow · Tube
cuts easily with bread knife or similar · · “crunch” down 2″ of aluminum core
before
twisting in quick connect · No need to overtighten · Tuck remaining insulation
under twist
collar · Tape connection
115
SUPPLY TUBING
Kwik Connects / Radius
No need to screw or fasten beyond tape No need to overtighten
finished internal connection
116
SUPPLY TUBING
Sound Attenuator
· 3-foot standard section · Pre-assembled connectors · Reduces velocity noise
/cloth-lined · End of every run · Included in the total run length
117
OUTLETS
6 Outlets Per Ton Minimum
System Size
2 Ton 2.5 Ton 3 Ton 3.5 Ton 4 Ton 5 Ton
System CFM
440 550 660 770 880 1100
Number of Outlets
12 15 18 21 24 30
Average CFM
37 37 37 37 37 37
COOLING BTUs per outlet
2000 2000 2000 2000 2000 2000
HEATING BTUs per outlet
3000 3000 3000 3000 3000 3000
118
OUTLETS
10 Outlets Per Ton Maximum
System Size
2 Ton 2.5 Ton 3 Ton 3.5 Ton 4 Ton 5 Ton
System CFM
440 550 660 770 880 1100
Number of Outlets
20 25 30 35 40 50
Average CFM
22 22 22 22 22 22
COOLING BTUs per outlet
1200 1200 1200 1200 1200 1200
HEATING BTUs per outlet
1800 1800 1800 1800 1800 1800
119
OUTLETS
CFM per Outlet
Supply Tube Length
1.8
CFM Per Outlet Plenum Static Pressure “WC
1.5
1.2
1
10
45
40
36
33
15
37
33
30
27
20
32
28
26
23
25
29
25
23
21
30
26
23
21
19
35
24
22
19
18
40
23
20
18
16
Note: When delivered CFMs are low additional supplies may have to be added in a room to achieve the required Btus
0.5
22 18 15 14 13 12 11
120
Main Plenum
Never install on an end cap
Minimum 18” from blower
Minimum 6” on center
Minimum 18” From end cap
COMMON PARTS
Installation Kits
Note: You will receive these in the box
122
ORIFICES
Balancing Orifices
Available in 3 sizes 15, 35, 50% (restriction) · Install ONLY in the Plenum ·
Do NOT install in the room-side termination · Only used for balancing or areas
that need
reduced BTUs · Most commonly used for small room/
bathroom supplies · If installed, please mark plenum and make a
note for future service.
123
ORIFICES
Balancing Orifices
· WILL result in unwanted noise and reduction of output
· Only to be installed at the plenum and only used for balancing and BTU
reduction
NOTE: Use ¼`” screen for floor installs to prevent the introduction of small
objects
DO NOT INSTALL HERE
124
?
Questions
125
Outlets
OUTLETS
Outlet Orientation
H O R I Z O N T A L
V
E
V E R T I C
R
U
T
P
I
C
F
A
L
L
O
D O W N
F L O W
A
W
L
127
OUTLETS
Outlet Placement Rules and Suggestions
DON’T DO THESE · Place in traffic patterns (room ceiling & floor corners, and
behind door swings are ideal) · where it will blow on someone (air can travel
15+ Feet) · where it will blow on something that will move (example; curtains)
· Never block an outlet (reduction of airflow can reduce system performance) ·
Have at least 6 inches from the center of an outlet to a wall
· If an outlet is mounted in the floor, a ¼” screen can be used to prevent the
introduction of foreign objects into the system.
· Ceiling, sidewall, or floor are all ok! Aspiration will work anywhere!!!
128
OUTLETS
OThuetlneut mPlbaceermofeonut tRleutlessinanadroSoumggiessdtieotnesrmined by:
· A proper Room by Room Load Calculation · The BTU’S required in the room
based on the load · CFM per outlet based on supply run and trunk layout ·
Length of the run
SpacePak offers presale support to help with load calculations
129
SYSTEM
Basic System Overview
Project: Spacepak House Albany N.Y.
KITCHEN 14′ X 14′ 196 FT² HEAT: 11100 BTU/H
COOL: 5000 BTU/H
DINING ROOM 12′ X 14′ 168 FT²
HEAT: 3000 BTU/H
COOL: 1600 BTU/H
BATH 5′ X 10′ 50 FT² HEAT: 1100 BTU/H COOL: 800 BTU/H
MASTER BED ROOM 15′ X 18′ 270 FT²
HEAT: 6100 BTU/H COOL: 4400 BTU/H
LIVING ROOM 35′ X 32′ 610 FT²
HEAT: 14700 BTU/H
COOL: 5900 BTU/H
OFFICE 12′ X 8′ 96 FT² HEAT: 4700 BTU/H
COOL: 5600 BTU/H
GUEST BED ROOM 15′ X 14′
210 FT² HEAT: 5000 BTU/H COOL: 4000 BTU/H
total heating load: 45,700 btu total cooling load:27,300 btu
Heating 45,700/ 3000 (btu per full rated outlet) = 15.2 outlets MINIMUM
Cooling 27,300/ 2000 (btu per full rated outlet) = 13.6 outlets MINIMUM
Note: This is a good way to get an approximate system size; however, a full
room-by-room load calculation should be done to ensure that the individual
rooms are supplied properly.
130
SYSTEM
DX Coil Cooling Only
KITCHEN 14′ X 14′ 196 FT² HEAT: 11100 BTU/H
COOL: 5000 BTU/H
BATH
5′ X 10′
DINING ROOM
50 FT²
12′ X 14′
HEAT: 1100 BTU/H
168 FT²
COOL: 800 BTU/H
HEAT: 3000 BTU/H
COOL: 1600 BTU/H
MASTER BED ROOM 15′ X 18′ 270 FT²
HEAT: 6100 BTU/H COOL: 4400 BTU/H
LIVING ROOM 35′ X 32′ 610 FT²
HEAT: 14700 BTU/H
COOL: 5900 BTU/H
OFFICE 12′ X 8′ 96 FT² HEAT: 4700 BTU/H
COOL: 5600 BTU/H
GUEST BED ROOM 15′ X 14′
210 FT² HEAT: 5000 BTU/H COOL: 4000 BTU/H
Kitchen 5,000 Btu Cooling
÷ 2,000 = 2.5
How Many outlets?
3 Outlets
· Dining Room 1, Bath Room 1, Master Bed 3, Guest Bed 2, Office 3, Living Room
3
· Our Cooling Load is 27, 300 BTUH ÷ 2000 = 13.65 outlets.
· The unit we would use is an ESP-2430JH4MB DX FAN COIL with a 2.5 ton
Condenser, 30,000 BTUH ÷ 2000 requires 15 Outlets we have 16 so your good to
go !
N
131
SYSTEM
Dx Coil Option With Hydronic Coil For Heating
KITCHEN 14′ X 14′ 196 FT² HEAT: 11100 BTU/H
COOL: 5000 BTU/H
BATH
DINING ROOM
50 FT²
12′ X 14′
HEAT: 1100 BTU/H
168 FT²
COOL: 800 BTU/H
HEAT: 3000 BTU/H
COOL: 1600 BTU/H
MASTER BED ROOM 15′ X 18′ 270 FT²
HEAT: 6100 BTU/H COOL: 4400 BTU/H
LIVING ROOM 35′ X 32′ 610 FT²
HEAT: 14700 BTU/H
COOL: 5900 BTU/H
OFFICE 12′ X 8′ 96 FT² HEAT: 4700 BTU/H
COOL: 5600 BTU/H
GUEST BED ROOM 15′ X 14′
210 FT² HEAT: 5000 BTU/H COOL: 4000 BTU/H
· Dining Room 1, Bathroom 1, Master Bed 3, Guest Bed 2, Office 3, Living Room
5
· Our Largest Load is the Heating Load of 45,700 BTUH ÷ 3000 = 15.2 outlets.
· The unit we would use is an ESP-3642JH4MB DX FAN COIL combined with a 2.5ton
Condenser, add an AC-WPAK-90 Hydronic Coil requiring 16 Outlets we have 19 so
your good to go !
Kitchen 11,100 Btuh
Heating ÷ 3,000 = 3.7
5,000 Btuh Cooling ÷ 2,000 = 2.5
How Many outlets ?
4 Outlets
N
132
SYSTEM
The Shotgun Duct System
N
133
SYSTEM
The Shotgun with a Tee (be sure to follow the “TEE” rules)
18 ”
No connections within 18″ of a cap , elbow or a tee
N
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SYSTEM
Perimeter Loop
layout with at centrally
located return, this system
would need no “extra
balancing” based on our load
÷
calculations and duct design
chosen.
Note: Since this is a heating and cooling system resulting in being slightly
oversized for one setting you can use the variable speed blower to ensure the
air flow match and btu delivery without the concern of unwanted N noise.
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OUTLETS
Supply Outlets and Terminations
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OUTLETS
Outlets
4” Hole Saw
When installing in a standard sheetrock ceiling be sure to use a 4″ hole saw
other ceiling and floor material may require a slightly different installation
processes.
138
OUTLETS
Installation of termination plate and mounting clips
· The sound attenuator is usually attached to the termination plate at this
time · Altering the clips or hole size may be required in some applications
for proper fastening as different installations may
require adjustments – this is all considered ok as long as you are not
restricting air flow (should not have any effect on system performance)
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OUTLETS
Additional Installation Parts
141
Showing a common supply wall and common return air
If we were standing in this picture, all windows would be at our back.
142
Showing linear slots in a kitchen
143
APPLICATION
Hallway Installation
· Notice the best place for outlet termination is in the center of the hall
· Rough-in plates were used in this installation to ensure proper locations of
the supply terminations
144
Showing horizontal wall terminations
145
This installation shows ceiling terminations. 9 – 10 runs per ton were used in
this installation to ensure that air noise would not be an issue due to the
lack of natural sound deadening material (full carpets, low ceilings, etc.).
146
This install used exterior wall terminations, the main trunk was actually
rectangle and located in the floor. The supplies were run up the outside walls
between the windows and out creating a thermal curtain. This rooms cooling
load was 42kbtu.
147
This install shows the use of no
termination plates, the cabinet
maker made holes and the
contractor attached to the back
of the top plate. Notice the slight
angle to the top plate this will
allow the air to travel under the
timbers and across the room.
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APPLICATION
Spot Conditioning
Great for · areas where it would be financially
exhausting to condition the entire space · kitchen prep lines · Assembly lines
· Gives a great commercial look · You can run fewer outlets per ton due
to the loss of restriction applied by the normally installed supply tubing ·
Generally, 4-5 outlets per ton will work here
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ZONING
Zoning Basics
· When zoning with SpacePak a staged or fully inverter condenser MUST be used.
· In a multi zone system the smallest zone must be of the same size or larger
output
then the lowest turned down capacity of the compressor being used (ex: if the
inverter condenser turns down to 12kbtu then the smallest zone on the system
must be capable of handling that capacity 1-Ton) · When using multiple zones,
the controls on the J-Series air handler will allow you to match the air flow
to the specific needs of the system. · During zoned system installation and
layout be sure to follow all duct design rules. · DO NOT UNDER ANY
CIRCUMSTANCES USE AN AIR BYPASS OF AN CONFIGURATION IN ANY SPACEPAK SYSTEM!
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ZONING
Zoning Basics
50/50 Split
System One
60/40 Split System Two
No Outlets Here
60/40 Split
153
REMINDER
Pre-Sale Application Support Team
[email protected]
Available to Representatives, Wholesalers and Contractors · System application
support · Equipment selection · Load calculation and rough material list
Any questions regarding equipment already shipped should be directed to
[email protected] (413) 564 – 5530
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Questions
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