SummerAire SHRV2500DD Operation manual

HEAT RECOVERY VENTILATORS
INSTALLATION AND OWNERS OPERATING MANUAL
MODEL SHRV2500DD
DO NOT ATTEMPT INSTALING THIS HRV WITHOUT FIRST
READING THIS ENTIRE MANUAL
APPLICATION WARNING!!
CAUTION
Before installation, consideration must be given to how
this system will operate if connected to any other piece of
mechanical equipment, i.e. a forced air furnace or air
handler, operating at a higher static. After installation, the
compatibility of the two pieces of equipment must be
confirmed by measuring the airflow’s of the Heat
Recovery Ventilator (HRV) using the balancing procedure
found in this manual.
It is always important to assess how the operation of any
Heat Recovery Ventilator may interact with vented com-
bustion equipment.NEVER install a Heat Recovery
Ventilator in a situation where its’ normal operation
(including defrost function), lack of operation or partial
failure may result in the back drafting or improper func-
tioning of vented combustion equipment!
Summeraire Mfg.,
Peterborough, Ontario,
Canada, K9J 6X6.
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TABLE OF CONTENTS
PRODUCT SPECIFICATIONS ....................................................................3
INTRODUCTION..........................................................................................4
HRV SIZING CHART............................................................................5 & 6
INTRODUCTION..........................................................................................7
INSTALLATION INSTRUCTIONS..............................................................9
INSTALLATION METHODS............................................................12 & 13
PITOT TUBE AIR FLOW BALANCING ..................................................16
GENERAL OPERATING ............................................................................19
GENERAL MAINTENANCE ....................................................................21
WIRING DIAGRAM ..................................................................................22
PARTS LIST ......................................................................................23 & 24
TROUBLE SHOOTING GUIDE ................................................................25
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PRODUCT SPECIFICATIONS
NOMENCLATURE
MODÈLE SHRV2500DD 208 3 16 1/2
Model
Voltage
Phase
CFM Required (X 100)
Total External Static in Inches
ELECTRICAL BOX
BEHIND THIS
PANEL
WARM SUPPLY
COLD EXHAUST
WARM
EXHAUST
COLD SUPPLY
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MODELS AVAILABLE:
230/1/60 single speed 1 H.P.
208/230/460/575 3 phase single speed 1 H.P. and 2 H.P
Refer to Model selection table for capacities available.
MOTORS: Type ODP motors with sleeve bearings or fan cooled with ball
bearings depending on application. Available in 1hp or 2hp in various voltages
and phases including 208/230/460/575 3 phase and 230/1 phase..
CABINET:Cabinet is white powder coated 18ga. Galvanized with 2” foil
faced reinforced insulation. Includes six (6) Access Doors to service air filters,
drain pans, heat recovery cores and fan and motor assemblies.
HEAT RECOVERY CORE: Three (3) polypropylene cores located for easy
removal for cleaning.
BLOWERS: Belt Drive, double inlet, forward curved centrifugal
blowers.Painted housing and galvanized wheels.
FILTERS: Four (4) - 16 “ X 20 “ X 4 “ Pleated Disposable Air Filters
DEFROST: Damper defrost system is actuated when supply air temperature
entering HRV falls below preset temperature. This causes cold supply air to be
dampened off thereby passing ambient indoor air from the building over the
core for a 5-7 minute cycle until the core defrosts.
CONTROLS: Power On/Off is field supplied as a fused disconnect. Control
keypad on the unit gives several options including; Hi420 20 minutes of run
time on high speed, Intermittent ventilation repeating cycle of 20 minutes of
fan on followed by 40 minutes of fan off, Auto Off to put the unit into standby
off mode until activated to high speed ventilation by a remote device or a
Remote Push Button or Crank Timer. Standby mode, power to the main control
remains on but the Remote Devices are inactive, cold supply damper closes.
OPTIONAL REMOTE CONTROLS: Remote On/Off toggle switch, Crank
timers, Remote 20 minute Push Buttons (Maximum 6) and Dehumidistats.
CONDENSATION: Unit supplied with Drain Spigots and a Tee fitting. Drain
hose (5/8 inside diameter) to be field supplied.
MOUNTING: Indoor application only, fasten at four corners of unit using
field supplied threaded rod for ceiling suspension
SHIPPING WEIGHT: 750 pounds
NOTE: ALL WIRING MUST BE IN COMPLIANCE WITH ALL
NATIONAL – STATE – PROVINCIAL AND LOCAL CODES
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INTRODUCTION
The SHRV2500 series of Heat Recovery Ventilators (HRV’s) are designed for
commercial and industrial applications to provide fresh air to a building and
exhaust an equal amount of stale air. During the winter months, the incoming
cold fresh air is warmed by utilizing the heat recovered from the stale air before
it is exhausted to the outdoors. During the summer months, when the indoor air
space is air conditioned, the HRV will help in cooling the incoming fresh air
with the stale air that is being exhausted. Fresh air is distributed throughout the
building by way of the existing duct system or a dedicated duct system.
SELECT THE CORRECT SIZE HRV
Commercial and Institutional Requirements
ASHRAE has produced the Ventilation Standard 62-1989 that is used to
determine acceptable ventilation rates. This standard is referenced directly or
used as Good Engineering Practice in most Code documents or design criteria.
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Small Restaurants, Donut Shops & Fast Food Stores
Seats 4
Employees 5
Total 45
ASHRAE Requirements 20 cfm ( 10 L/s) per person
Ventilation Required 45 X 20 = 900 cfm ( 450 L/s)
Bar or Tavern
Seats 50
Employees 7
Total 57
ASHRAE Requirements 30 cfm ( 15 L/s ) per person
Ventilation Required 57 X30 = 1710 cfm ( 855 L/s )Salle de cours
Classrooms and School Portables
Seats 29
Teacher 1
ASHRAE Requirements 15 cfm ( 7.5 L/s ) per person
Ventilation Required 1 8 X 25 = 450 cfm ( 255 L/s )
Beauty Salon
Customers 12
Employees 6
Total 18
ASRAE Requirements 25 cfm ( 12.5 L/s ) per person
Ventilation Required 18 X 25 = 450 cfm (255 L/s )
Bank
Customers 25
Staff 9
Total 34
ASHRAE Requirements 20 cfm ( 10 L/s) per person
Ventilation Required 34 X 20 = 680 cfm ( 320 L/s )
Bingo Hall
Customers 180
Staff 20
Total 200
ASHRAE Requirements 30 cfm ( 15 L/s ) per person
Ventilation Required 200 X30 = 6000 cfm ( 3000 L/s )
Print Shop
Square Footage of Shop 2000 sq. ft.
ASHRAE Requirements 0.5 cfm / sq. ft. ( 2.5 L/s – m 2 )
Ventilation Required 2000 X 0.5 = 1000 cfm ( 500 L/s )
Swimming Pools
1 cfm per sq. ft. of the water surface area or
.5 cfm per sq. ft. of the water surface + deck area
Hot Tubs
7 – 10 cfm per sq. ft. of the water surface area
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MAKE – UP HEAT REQUIREMENTS @ 1200 CFM ( 566 L/s )
9
Outdoor Temp
°C °F
032
-10 14
-20 -4
-30 -22
-40 -40
Nominal
20 °C
(68 °F)
7
10
12
15
17
Nominal
25 °C
(77 °F)
10
14
15
19
21
Nominal
30 °C
(86 °F)
14
17
19
22
24
NOTE: ALWAYS REFER TO THE MOST RECENT VERSION OF
ASHRAE VENTILATION STANDARD TO DETERMINE CFM
REQUIREMENTS.
INSTALLATION INSTRUCTIONS
LOCATION
The HRV should be suspended from a supported ceiling ideally in a mechanical
room proximate to an outside wall to establish outside venting and weather-
hoods. This unit can only be mounted indoors and consideration should be give
to the location of available power and water drainage for the unit’s condensation.
When installing the unit, ensure that it is level and that adequate space is
allowed around the unit for easy accessibility into the access doors for service
and maintenance.
DUCT SYSTEM
The Duct System must be well designed to allow the HRV to operate at its’
maximum efficiency. It is very important the Duct System must be adequately
sized and includes no sharp radius bends or tees which will significantly
increase the pressure drop in the Duct System and reduce air flows.
Galvanized ducts must be sized for 1200 f.p.m. (6.09 m/s) maximum velocity;
this is recommended to avoid excessive pressure drop and noise. Ducting
should be as short as possible and use the minimum number of elbows and
tees. Connecting duct sections and shorter runs may be flexible ducting one
size larger than the metal duct. The use of flexible duct connectors at the HRV
will considerably reduce noise transmission. All duct joints must be secured
with screws, rivets or duct sealant and sealed with aluminum tape.
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DUCTING OUTSIDE
OUTSIDE WEATHERHOODS
The Outside Weatherhoods required for operation of the SHRV2500 HRV are to
be provided by the installing contractor. Weatherhoods must have built in bird
screens to prevent birds and rodents from entering the premise through the
ductwork. When designing and locating the fresh air intake, consideration
should be given to the best place where the hoods will gather the freshest air,
free from restriction.
We recommend:
• No less than 10 ft. (3 m) apart from each other.
• At least 18 in. (46 cm) above ground level or potential snow accumulation.
• Away from sources of contaminates, such as automobile exhaust fumes,
gas meters, garbage containers, cooling towers, etc.
• Not exposed to prevailing winds, wherever reasonably possible.
The outside perimeter of the weatherhoods must be caulked to prevent leakage
into the building. Roof vents must have adequate curb height for water protection
and to be sealed to the ducting.The design and size of the weatherhoods or
louvers chosen by the installer, must allow for adequate free area. Water and
snow penetration of the system is minimized when the airflow does not exceed
750 fpm (3.81 m/s) free area velocity.
WEATHERHOOD DUCTING
Galvanized metal ducting with sufficient cross section and with an integral
single piece vapor barrier should be used to connect to the HRV to the weather-
hoods. All ducting must meet ULC Class 1 Fire Rating and the minimum R-
value of the insulation should be equal to 4 (RSI 0.75), or as stated in local
codes.
All ducting must be well sealed to prevent air leaks and a sufficient bead of
high quality caulking (preferably acoustical sealant) and taping with a high
quality aluminum foil tape is recommended to seal the duct to both the HRV
and the weatherhoods.
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