1. Pioneer Church Solon, Ohio
SYSTEM PUMP
HYDROTHERM KN6 CONDENSING BOILERS - Reverse Return Suggested Piping - NTS
Boiler Vent & Combustion Air Elevation – NTS
Elevations can be from 4’-6’ off the floor.
Vents should stagger off the back of the boiler to leave through the wall at the same height (AL29). Combustion air to be PVC and may be common connected.
18”
Primary/Secondary not required, but check flow Delta Tee and running temperatures.
10’
26”
18”
30”
VENTING PLAN VIEW - NTS
Outside wall
Vent Pipe
C Air Pipe
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

2. Boiler Vent & Combustion Air Elevation – NTS
Cargil Salt Brewer Garrett Akron Office
Existing piping and 400mbh boiler Suggested Piping - NTS
SYSTEM PUMP Taco 132-9A170
Existing 400mbh Boiler.
Existing Expansion Tk 14” x 6’
KN4 boiler vent through existing opening. Once through, continue for 2’ and then head up 3’ and goose neck down. Existing ‘outside’ chimney to be dropped. 3’
HYDROTHERM KN4 CONDENSING BOILER - Flow through design Suggested Piping - NTS
SYSTEM PUMP Taco 132-9A170
CWMU add a backflow preventer
New bladder type Expansion by Elbi 8’
Boiler Vent & Combustion Air Elevation – NTS
CA to be piped in PVC and come back through the low point of the existing opening.
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

3. 2550 LANDER ROAD Chagrin, Ohio
HYDROTHERM KN10 CONDENSING BOILER - Suggested Piping - NTS
GARAGE HEAT SYSTEM PUMP
FPE set at 90F
Snow Melt System 90F by FPE Valve
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

4. The Raintree Restaurant Chagrin Falls, Ohio
Air Inlet Damper – Pigtail into boiler panel.
Max 12” Apart
Run duct in front of chimney (hugging wall) to allow air for old water heaters.
2.5” FPE bypass valve to allow for boiler reset at 110F.
RBI FUTERA III MODEL MB Primary / Secondary Suggested Piping - NTS
Vent through the wall into factory SS vent Hood. Direct Connect CA
SYSTEM PUMP
24”
Boiler Vent & Combustion Air Elevation - NTS
Current exhaust to remove heat. Exhaust is creating a very dangerous situation with the combustion equipment.
Dishwasher area.
Shaft to Upstairs
Vent Pipe
C Air Pipe
Mechanical Room
Current Condenser Area that overheats
NOTES:
The existing louver should be sealed and the vent run as high as possible through the wall. The air inlets for the boiler and the water heaters should be placed much lower than the vent. You should construct a duct to direct the outside air to dump over the water heater.
SUGGESTED AIR MOVEMENT - NTS
We will provide an Exhausto RSIB modulating fan to move the warm air OUT of the condenser area and over the warm dishwasher area. The fan will have a manual speed control to obtain a comfort level both in the dishwasher area and the condenser area. The Exhaust fan (existing in the wall) will be turned off but left in position. The colder air will be brought in and across the hot coils, but used to condition the space. This area will reduce or eliminate the negative in the mechanical room. An interlock Freon detection system should be added to shut off our fan and start the exhaust fan if there is a Freon leak.
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

5. Winton Place - General Venting Ambrose / Karpinski
Modulating Combustion air fan from outside Ducted into the space
Swoop Into Breeching
Draft Balancing Baffle supplied by Exhausto.
RBI CW1000 WATER HEATERS – TYP. OF 4
24”
Boiler Vent
Elevation - NTS
Exhausto Engineered Modulating Fan System – In line (typ. of 3)
RBI CB2000 BOILERS – TYP. OF 4
225’ Chimney lined in AL29-4C Single Wall. If Fans are used, 24” dia. Acceptable.
Engineered Modulating Draft Control Damper by Exhausto.
RBI CB2000 BOILERS – TYP. OF 4

6. Winton Place – General Piping Ambrose / Karpinski
NOTES:
All boilers are RBI High efficiency model CB Input is 1999MBH and output is rated at 1899MBH. Total rated output 15,192MBH.
Fusion boilers are Hybrid condensing boilers. All primary pumps and mixing valves are mounted in the package and part of the boiler design.
Fusion boilers include HeatNet control system. This system allows a daisy chain between boilers communicating off of one master.
Each boiler has a required flow rate of 13.8ftpd. Pumps mounted on boilers are rated at this capacity with up to 30’ of normal piping and fittings.
Each boiler has a continuous turndown of 3:1. HeatNet will utilize all boilers to maximize efficiency with the turndown ratio. System turndown is from 15,192MBH to 627MBH output. (About a 23:1 system turndown without straining single boiler combustion or operation.
Layout is purely conceptual, all components are not shown. Please refer to normal engineering design practices and/or the RBI Fusion manual.
SYSTEM PUMP
RBI FUSION MODEL CB2000 FULLMOD-HEATNET - Primary / Secondary Suggested Piping - NTS
Max 12” Apart

7. Boiler Vent & Combustion Air Elevation - NTS
Hybrid Boiler Concept – Perkins Schools
Swoop Into Breeching With WYE.
SYSTEM PUMP
RBI FUTERA III MODEL MB4000 FULL MOD BOILERS - RBI FUSION SERIES MODEL CB2000 FULLY CONDENSING BOILERS
Air Inlet Damper – Pigtail into boiler panel.
RBI fully condensing boiler set to receive the coldest return water. It will have no minimum temperature requirement.
BMS Lonworks
24”
The Futera III 4000 MBH boilers will be designed to come on with a reset ratio that comes on when the KN can no longer keep up. This will be designed at temps of 120F or above.
Boiler Vent & Combustion Air Elevation - NTS
Honeywell BMS tied simply to the ‘master’ boiler. Boilers tied together with a single twisted pair for communications
Vent Pipe
To the vent outlet through the roof in a category II liner (combined), or through the wall (category IV) typical of 3 (not combined).
CB 2000
C Air Pipe
MB 4000
MB 4000
To air inlet from wall or roof. Sized by the manufacturer. Copper boilers shall have a freeze protection damper on each inlet.
VENTING PLAN VIEW - NTS
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

8. Firestone Country Club - CONCEPT Akron, Ohio
EXISTING STORAGE TANKS
NEW RBI FUTERA II WATER HEATERS 750MBH INPUT EACH
NEW 200 GALLON ASME STORAGE DISHWASHER
135F
180F
WATER HEATERS SHALL OFFER ADDITIONAL CAPACITY BASED ON AN 85% EFFICIENCY RATING
A PUMP SHALL BE ADDED TO EACH EXISTING PUMP WITH AN AQUASTAT TO START/STOP AT 135F
NEW STORAGE TANK SUPPLIED WITH A PUMP AND AQUASTAT TO START/STOP AT 180F
WHEN ALL PUMPS ARE STOPPED, LOOP SHALL COME UP TO 180F AND WATER HEATERS SHALL SHUT DOWN ON TEMPERATURE
WATER HEATER PUMPS SHALL RUN CONSTANT TO MONITOR LOOP TEMPERATURE. AS TANKS DROP BELOW SET POINT, TANK PUMP SHALL START AND LOWER THE LOOP TEMPERATURE WHICH WILL ACTIVATE THE WATER HEATER.
RBI SHALL PROVIDE TWO (2) FUTERA II FW0750 WATER HEATERS, WATER HEATER PUMPS, 200 GALLON STORAGE TANK JACKETED WITH INSULATION.
CONTRACTOR TO SUPPLY NEW TANK PUMPS (ALL BRONZE), AQUASTATS, RELIEF OR T/P VALVES AS REQUIRED. MAIN LOOP PIPE SIZE TO BE DETERMINED, FLOW OF NEW PUMPS TO BE SIZED.
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

9. East 4th Street Garage Cleveland, Ohio
Boiler Vent & Combustion Air Elevation – NTS
Elevations can be from 4’-6’ off the floor.
Vents should stagger off the back of the boiler to leave through the wall at the same height (AL29). Combustion air to be PVC and may be common connected.
18”
ST1
HYDROTHERM KN6 CONDENSING BOILERS Geothermal Suggested Piping - NTS
CT-1
HX1
To Building
100 GPM each 10F Delta Tee / 2.7 psi drop
200 GPM
System shall flow through the boilers. The boilers shall sense the temperature and be set to fire below 50F. Boilers will be wired to each other and modulate together on the highest point of the efficiency curve.
From Building
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

10. Boiler Vent & Combustion Air Elevation - NTS
BOILER REPLACEMET Concept – Nestles Solon, Ohio
Swoop Into Breeching With WYE.
SYSTEM PUMP
RBI FUTERA III MODEL MB0750 FULL MOD BOILERS –
With Exhausto Combustion Air System
Using Exhausto CA system, no Combustion air Piping Needed.
Max 12” Apart
Locate Barometric here.
Trane BMS Modbus (Lonworks BacNet?)
RBI MB0750 has a 6” vent outlet each boiler
24”
The Futera III 750 MBH boilers will have a built in reset system. The first boiler will be the ‘master’ and the other the ‘member’. The boilers will communicate with each other to assure they are running at the highest efficiency (modulation point) and report back to the Trane system.
Boiler Vent & Combustion Air Elevation - NTS
Honeywell BMS tied simply to the ‘master’ boiler. Boilers tied together with a single twisted pair for communications 3’
VENTING PLAN VIEW - NTS
Entry point of the chimney is about 8’ off the floor. Single wall stainless steel liner to be fabricated to run through the chimney up about 15’. Water heater shall vent ‘around’ the stainless steel liner. Chimney is estimated at 24” x 30” Liner shall be sized for the two boilers only (750mbh input each).
10’
15’
Small Exhausto Combustion air system fed from existing louver ‘boxed’ under air handler duct.
Existing 199MBH water heater with 4” vent remaining in the chimney
Vent Pipe
MB 0750
MB 0750
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

11. SYSTEM PUMPS ARE SKID PACKAGED BY ARMSTRONG WITH CONTROLS
MASTER BOILER RESET
MEMBER BOILER RESET
MEMBER BOILER RESET
ARMSTRONG EXPANSION TANK
ARMSTRONG SYSTEM PUMPS
RBI MB2000 W/HEATNET TYPICAL OF 3
ARMSTRONG IWH INSTANT WH
SYSTEM RETURN
SYSTEM SUPPLY
SYSTEM PUMPS ARE SKID PACKAGED BY ARMSTRONG WITH CONTROLS
MASTER/MEMBER BOILERS SET TO ACCOMPLISH OUTDOOR RESET AS PROGRAMMED.
IWH AT 150F PROVIDING CONSTANT TEMPERATURE TO THE HEAT EXCHANGER
DOMESTIC PRIORITY SIGNAL SHALL BE SENT TO SYSTEM PUMP CONTROL PANEL TO SHUT THEM DOWN WHILE DOMESTIC HOT WATER IS NEEDED.
IWH SHALL FLOW CONSTANT WITH A 80F DELTA TEE, MASTER BOILER SHALL REACT TO THE SYSTEM TEMPERATURE REQUIREMENTS TO MAKE UP TEMPERATURE TAKEN FROM THE IWH.

12. ARMSTRONG IWH INSTANT WH RBI MB2000 W/HEATNET TYPICAL OF 3
SYSTEM SUPPLY
SYSTEM RETURN
ARMSTRONG EXPANSION TANK
ARMSTRONG SYSTEM PUMPS
MASTER BOILER RESET
MEMBER BOILER RESET
SYSTEM SUPPLY
SYSTEM RETURN
ARMSTRONG EXPANSION TANK
ARMSTRONG SYSTEM PUMPS
ARMSTRONG IWH INSTANT WH
RBI MB2000 W/HEATNET TYPICAL OF 3
MASTER BOILER RESET
MEMBER BOILER RESET

13. Boiler Vent & Combustion Air Elevation – NTS
CASE WESTERN RESERVE LARGE DORM BOILER REPLACEMENT Cleveland, Ohio
System shall flow through the boilers. The boilers shall sense the temperature and be set to fire and modulate in accordance with it’s on board outdoor reset control. Boilers will be wired to each other and modulate together on the highest point of the efficiency curve.
Vents to be routed up and through the existing penetration (AL29).
Combustion air may be PVC routed through the existing 2nd penetration
From Building
200 GPM
GPM each 35F Delta Tee / 2.7 psi drop
To Building
Sensor to be mounted in supply header
Sensor to run to outdoors
Master Boiler
Member Boiler
18”
Boiler Vent & Combustion Air Elevation – NTS
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

14. Boiler Vent & Combustion Air Elevation - NTS
CASE WESTERN RESERVE SMALL DORM BOILER REPLACEMENT Cleveland, Ohio
RBI FUTERA II MODEL FB Primary / Secondary Suggested Piping - NTS
Boiler Vent & Combustion Air Elevation - NTS
24”
Vent directly into existing chimney. Boiler is category I
Barometric Damper supplied with the boiler
Primary pump supplied with the boiler. Pump wired to and controlled by the boiler.
Max 12” Apart
.35pd shall give you 25F delta tee
SYSTEM PUMP
20’
System shall flow on it’s own. For good temperature control and boiler life, we are supplying primary (boiler) pumps. This pump will be activated on a call for heat, remove water from the secondary (system) loop and replace that water with heated water (25F rise) as needed. Boilers shall be provided with an enable/disable relays (24V) for the existing building management control to reset temperatures. The boilers can also run off of it’s own single set point operating control.
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

15. SEQUENCE OF OPERATION (CONCEPTUAL)
BOILER REPLACEMET Concept – Honeywell 5/14/08
SEQUENCE OF OPERATION (CONCEPTUAL)
The RBI boiler will be run on an outdoor reset schedule for the reheat loop.
On a call for heat, the boiler primary pump (supplied by RBI) will be enabled flowing the primary loop.
When the indirect DHW tank drops in temperature, the domestic pump will start.
DHW indirect coil will require 140F so a signal can be sent to the boiler to override the reset and fire the boiler to a local set point (140F). Once the DHW is satisfied, the signal will be dropped and the boiler will return to it’s programmed reset.
If the on board “Heat Net” controls are not used, the sequence will be controlled by others and the boiler will offer a 4-10ma modulation connection and a T to T enable/disable connection.
SYSTEM (Reheat) PUMP
RBI FUTERA III MODEL MB1500 FULL MOD BOILERS
The Futera III 1500MBH IN
Honeywell BMS Modbus (Lonworks BacNet?)
Max 12” Apart
200 Gallon ASME indirect DWH
Boiler Primary Pump
(supplied by manufacturer)
DHW Pump by Others
Water Temperature Sensor
Outdoor Air Sensor
PRICING OPTIONS:
All options include Start up, one year warranty service, and freight to job site (FOB). All options include jacketed and insulated indirect storage tank, Boiler PRIMARY pump, and control sensors when available (FII does not have Heatnet).
Option 1: Fully condensing RBI Fusion boiler model CB1500 (92+ ratings) $27,500.00
Option 2: 88% RBI Futera III Model MB1500 $20,744.00
Option 3: 85% Futera II model FB1500 $19,350.00
RBI modulating 88% boiler (Futera III) shall require AL29-4C vent material (Category II) lining the chimney all the way out. The vent sizing (standard) is 8”. You may use a single wall liner in the chimney. If you chose to substitute an 85% - two stage RBI boiler (Futera II) you may vent into the chimney without the use of a liner. The vent size on the Futera II is 12”. If you chose a fully condensing RBI Fusion boiler, you will need to also line the chimney in AL29-4C sized at 8”.
VENTING PLAN VIEW - NTS
MB 1500
Existing
Existing
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

16. SEQUENCE OF OPERATION (CONCEPTUAL)
BOILER REPLACEMET Concept – Lubrizol Office Bldg
SEQUENCE OF OPERATION (CONCEPTUAL)
The RBI boiler will be run on an outdoor reset schedule for the reheat loop.
On a call for heat, the boiler primary pump (supplied by RBI) will be enabled flowing the primary loop.
When the indirect DHW tank drops in temperature, the domestic pump will start.
DHW indirect coil will require 140F so a signal can be sent to the boiler to override the reset and fire the boiler to a local set point (140F). Once the DHW is satisfied, the signal will be dropped and the boiler will return to it’s programmed reset.
If the on board “Heat Net” controls are not used, the sequence will be controlled by others and the boiler will offer a 4-10ma modulation connection and a T to T enable/disable connection.
VENTING PLAN VIEW - NTS
Existing
Existing
RBI modulating 88% boiler (Futera III) shall require AL29-4C vent material (Category II) lining the chimney all the way out. The vent sizing (standard) is 8”. You may use a single wall liner in the chimney. If you chose to substitute an 85% - two stage RBI boiler (Futera II) you may vent into the chimney without the use of a liner. The vent size on the Futera II is 12”. If you chose a fully condensing RBI Fusion boiler, you will need to also line the chimney in AL29-4C sized at 8”.
PRICING OPTIONS:
All options include Start up, one year warranty service, and freight to job site (FOB). All options include jacketed and insulated indirect storage tank, Boiler PRIMARY pump, and control sensors when available (FII does not have Heatnet).
Option 1: Fully condensing RBI Fusion boiler model CB1500 (92+ ratings) $27,500.00
Option 2: 88% RBI Futera III Model MB1500 $20,744.00
Option 3: 85% Futera II model FB1500 $19,350.00
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

17. Learning Center/ Admin
The Chapel Akron, Ohio
Learning Center/ Admin
250 GPM
70 GPM each
24F Delta Tee / 1.12’ drop each boiler
Boiler room loop
ZONE RETURNS
Z-1
Z-2
Z-3
Z-4
Z-5
Old second boiler loop
VENTING PLAN VIEW - NTS
Venting shall be routed to include a common breaching to all three boilers to the existing chimney. The chimney shall be lined all the way out with a single wall stainless steel liner. Material in the boiler room shall be double wall AL29-4C as manufactured by Schebler.
HYDROTHERM KN10 CONDENSING BOILERS Learning Center / Admin Suggested Piping - NTS
Modulating Combustion air fan from outside
** Existing water heater to be routed into another chimney at the other end of the room.
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

18. Learning Center / Admin
The Chapel Akron, Ohio
Learning Center / Admin
Venting shall be routed to include a common breaching to all three boilers to the existing chimney. The chimney shall be lined all the way out with a single wall stainless steel liner. Material in the boiler room shall be double wall AL29-4C as manufactured by Schebler.
Chimney is approximately 35’ rise from entry point. Entry point is approximately 8’ from the floor.
Centerline of boiler vent outlet is 13.75” from the floor (another 4” for the pad).
Boilers should have about 10” between them but can have as little as 6”.
We would like to see the boilers all come out of the back from 16” – 24” and rise in 6” ID. All should ‘swoop’ into a common 12” breaching and run all the way out the chimney in 12”.
Please supply a tee in the horizontal behind the boiler for a full size 6” barometric (supplied by the boiler manufacturer).
Please supply drain tee at the vertical rise off the boilers.
** Measurements are approximations. Pricing shall be a budget for now.
VENTING PLAN VIEW - NTS
50”
72” 6” 6” 6”
30”
10”
30”
10”
30”
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

19. Kirtland Country Club - CONCEPT
HOT WATER OUTLET
EXISTING Domestic System SET AT 160F – 170F
NEW 340 GALLON ASME STORAGE
NEW 340 GALLON ASME STORAGE
NEW 340 GALLON ASME STORAGE
COLD WATER MAKE UP
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

20. Renaissance Center Akron, Ohio
HYDROTHERM KN4 CONDENSING BOILERS - Piping - NTS
SYSTEM PUMP
Primary/Secondary not required, but check flow Delta Tee and running temperatures.
Isolation valves and check valves not shown.
VENTING PLAN VIEW - NTS
Vent Pipe
C Air Pipe
10’
28”
72”
22”
Boiler outlet is 4”. Combined flue at 8” travels up through the roof about 14’ with standard terminations.
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

21. BRUNSWICK MIDDLE SCHOOL (EDWARDS)
HYDROTHERM KN4 CONDENSING BOILER - Suggested Piping - NTS
MAIN GYM DEMAND LOAD – 176,000 BTU
LOCKER DEMAND LOAD – 71,000 BTU
NOTES:
Boiler must be vented in AL29-4C material. Vent dia. 4”.
Boiler may be directly connected to outside air.
KN boilers have the ability to communicate through Modbus (standard), Lon and BacNet (Add). They can also take a simple 4-20ma set point signal, or if ordered with sensors, all temperature reset can be accomplished with the supplied Heatnet control system.
KN SERIES (KN4) FLOW AND TEMP RISE
(observe maximum operating temp – Max Input 399MBH / Min. input 80MBH )
Temp. Rise
@ flow of (gpm)
Expected Outlet Temp based on a return temp of 160F
20F
34.9
180F
25F
27.92
185F
30F
23.26
190F
KN BOILERS CAN HANDLE VERY LOW FLOW. AT 6.98GPM THE BOILER WILL HAVE A 100F DELTA TEE. LOW FLOW RATES SHOULD ONLY BE CONSIDERED WHEN VERY LOW RETURN TEMPERATURES ARE EXPECTED (AS NOT TO EXCEED THE HIGH LIMIT.. 200F).
This drawing is for conceptual purposes and should not be used for installation. The drawing does not include many required accessories such as expansion air elimination, etc.

22. Brewer Garrett Company
DOWNTOWN OFFICE TOWER
Brewer Garrett Company
MAIN BOILER PLANT
Boilers are RBI Model MB4000 Futera XLF
Vent outlets are 10” centered on the lower back of the boiler.
Boilers should have 2’ of horizontal off the back before entering into a 90D.
Balancing baffles and barometric dampers may be required.
Air intake louver is about 30’ from the boilers, same as exhaust louver. SFTA???? 01 02 03 04 05 06 07 08 09
48”
30’ 6”
12”
60”
13’
30” 10 11 12 13 14
48”
This is currently a louver on the exterior that will be boxed on the interior. The esthetics are critical and can’t be changed. The louver is about 40’ from the center of the boiler rows. Would be desirable to have a common outlet from the fans, but not a deal breaker. The least amount of fans the better.

23. ROOF PLAN VIEW OF STACK / EXHAUST
PCC AIRFOILS – OVEN HEAT RECOVERY CONCEPT
Space Exhaust – Prop type, low velocity About 48” Diameter
ROOF PLAN VIEW OF STACK / EXHAUST
SMELTING OVEN – TYPICAL OF FOUR
Ovens bake molds filled with Alumina to create turbine blades.
Oven bakes at about 1900F in the oven.
Air is diluted a great deal as it only reads about 110F just outside the hood.
Exit temperature on the roof read >500F.
Temp at Exhaust fan read about 95F exiting the space.
Space temperature was about 88F.
Entire plant is short make up air and has been mandated to induce air into this plant.
Oven Stack was about 30” OD.
Stack has an induced fan.
Higher Plant Elevation
BASIC ROOF ELEVATION

24. HEATSPONGE RECOVERY MODULES HEATING COIL RAPID AIR HEAT RECOVERY UNIT
PCC AIRFOILS – OVEN HEAT RECOVERY CONCEPT
EWT 160F GPM 75 PD 8.6’
LWT 169F
HEATSPONGE RECOVERY MODULES
LWT 124.9F
HEATING COIL RAPID AIR HEAT RECOVERY UNIT
EWT 125F – EACH 15GPM – PD 1.2 PSI
Rough budget numbers:
Rapid air handler complete with coil, temperature controls, DDC, and Exhaust heat recovery (face/bypass): $ 70,000.00
Economizers (total of 4): $ 35,000.00
Pumps, three way valves, additional controls (pure guess): $6,000.00
Total equipment cost budget including freight, start up, etc: $111,000.00
Estimated annual fuel savings:
Again, rough estimate, but I used a similar heat calculation based on losses for another project. This project had a 25,000 cfm unit on it. Operating 24/7, figuring $1 per therm with an average temp of 60F the direct fired unit (99% efficiency) running at 100% OA (outdoor air) would cost $38, annually in fuel. This puts the ‘equipment’ (not installation) at under a 3 year payback. Also, can’t get much ‘greener’ since there is no combustion used.
Winter Heat
Summer Load Shed to Domestic?
Stored heated water for process or coil for domestic.

25. RBI FUSION PACKAGED WATER HEATER
UPTOWN DOMESTIC HOT WATER PROJECT
500 GALLON STORAGE TANK
RBI FUSION PACKAGED WATER HEATER

26. ARMSTRONG IWH PIPING AND SELECTION
RBI DOMINATOR 1950
95 35F DELTA T
ARMSTRONG IWH INSTANT DOMESTIC HOT WATER SYSTEM F RISE
RBI DOMINATOR 1950
95 35F DELTA T
203 GPM @ 35F DELTA T
RACK OPTIONAL – EACH BOILER TO BE 4 STAGE
Note: Conditions based on 180F supply temperature. Conditions also based on worse case. Full load likely to never happen.