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OPERATION AND
INSTALLATION MANUAL
NOTE: ALTHOUGH SOME MODELS
For Models:
DIFFER IN OPERATION, THE BASIC
STEPS ARE SIMILAR.
700DDPOOL
CAUTION
1200DDPOOL
Before installation, careful consideration must be
given to how the system will operate if connected to
1000RHC
any other piece of mechanical equipment, i.e. a forced
air furnace or air handler, operating at a higher static.
1000RHCAC
After installation, the compatibility of the two pieces of
equipment must be confirmed, by measuring the
airf
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Table of Contents Introduction Introduction .....................................................................2 A Heat Recovery Ventilator (HRV) is designed to provide fresh air into a building while exhausting Technical Data - Model 700DDPOOL ............................3 an equal amount of stale air. During the winter Technical Data - Model 1200DDPOOL ..........................4 months, the incoming cold fresh air is warmed by Technical Data - Model 1000RHC..................................
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Model 700DD POOL SPECIFICATIONS PERFORMANCE CORES AIRFLOWS (Each Air Stream) Modular (2 section) patented aluminum heat recovery cores arranged for efficient cross-flow ventilation.Meets the flame spread and smoke 423 (900) developed classifications of the National Building Code and NFPA 90A 378 (800) (1993 Edition) 329 (700) 5.5 HIGH MOTORS HIGH SPEED HIGH SPEED 282 (600) 5.0 MED Two PSC, 3 speed single shafted, 120 VAC, 2.75 Amps each (5.5 total on MED SPEED MED SPEED 235 (500) 4.7 LOW high
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Model 1200DD POOL SPECIFICATIONS PERFORMANCE CORES Modular (3 section) patented aluminum heat recovery cores arranged AIRFLOWS (Each Air Stream) for efficient cross-flow ventilation. Meets the flame spread and smoke developed classifications of the National Building Code and NFPA 90A 613 (1300) (1993 Edition). 566 (1200) 8.1 HIGH MOTORS 518 (1100) Two PSC, 3 speed double shafted, 120 VAC, 4 Amps each (8.1 total 7.8 MED HIGH SPEED HIGH SPEED 472 (1000) on high speed). HP - 1/4, 1625 RPM. Watts
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Model 1000RHC and Model 1000RHCAC SPECIFICATIONS PERFORMANCE CORES Modular (3 section) patented aluminum heat recovery cores arranged for AIRFLOWS (Each Air Stream) high efficiency cross-flow ventilation. Meets the flame spread and smoke developed classifications of the National Building Code and NFPA 90A (1993 613 (1300) Edition). 566 (1200) 8.1 HIGH MOTORS 518 (1100) Two PSC, 3 speed double shafted, 120 VAC, 3.95 Amps each (7.9 total on 7.8 MED HIGH SPEED HIGH SPEED 472 (1000) high speed).
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Sizing your Pool Heat Recovery Ventilator Determining ventilation requirements for Moisture removal capabilities Indoor Pool enclosures In addition to the amount of air being exchanged, There are two primary reasons to ventilate an indoor moisture removal depends largely on the moisture pool enclosure. One is to provide effective and content of both the inside and outside air. The efficient control of harmful humidity levels. The other trends below outline these principles. reason is to control
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Calculation Note: As a general rule, if the water temperature is maintained at 80˚F and the pool room air temperature is maintained at 82˚F, use a factor of 1 cfm/sq ft of pool surface or .5 cfm/sq ft of room area (whichever is greater) to determine amount of ventilation required. Example: Pool surface area 16’ x 32’ (512 sq ft) *Indoor design air temperature 83 ˚F Pool water temperature 81 ˚F Relative Humidity 50 % *Outdoor design air temperature 15 ˚F * Always use design temperatures for in
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Evaporation Rate TABLE 1 Indoor Relative Humidity 40% 50% 60% 40% 50% 60% 40% 50% 60% 40% 50% 60% 40% 50% 60% 40% 50% 60% Evaporation Rate lb/(sq. ft-hr.) 68 0.069 0.063 0.056 0.079 0.073 0.066 0.090 0.084 0.077 0.102 0.095 0.089 0.115 0.108 0.102 0.129 0.122 0.116 70 0.068 0.060 0.053 0.078 0.070 0.063 0.088 0.081 0.074 0.100 0.093 0.086 0.113 0.106 0.099 0.127 0.120 0.113 72 0.065 0.058 0.050 0.075 0.068 0.060 0.086 0.079
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TABLE 2 Flowrate Factor Indoor Relative Humidity 40% 50% 60% 40% 50% 60% 40% 50% 60% 40% 50% 60% 40% 50% 60% 40% 50% 60% Flowrate Factor (cfa-hr./lb.) -30 39.70 31.50 26.10 35.70 28.30 23.40 32.10 25.50 21.10 29.00 23.00 19.00 26.10 20.70 17.20 23.60 18.70 15.50 -25 40.20 31.80 26.20 36.10 28.50 23.60 32.40 25.70 21.20 29.20 23.10 19.10 26.30 20.90 17.20 23.80 18.80 15.60 -20 40.80 32.10 26.50 36.50 28.80 23.80 32.80 25.90
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EXPOSED WALL Installation Diagrams EXPOSED WALL Blanket exposed windows with fresh dry air Main Stale Air Intake EXPOSED WALL HRV Min. 10’-0" Always attempt to minimize Typical Duct Layout short circuiting of air streams, Sketch #1 (supply fresh air on one side of room and exhaust stale air from opposite side of room). 10 EXPOSED WALL
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EXPOSED WALL EXPOSED WALL Blanket exposed windows with fresh dry air Stale Air Intake EXPOSED WALL HRV Min. 10’-0" Always attempt to minimize Typical Duct Layout short circuiting of air streams, Sketch #2 (supply fresh air on one side of room and exhaust stale air from opposite side of room). 11 INTERIOR WALL
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Location for Mounting The Ductwork System The HRV must be located in a heated space A properly designed ducting system will allow the where the surrounding air temperature does not HRV to operate at its maximum efficiency. (Air fall below 60˚F (16˚C). The unit must be mounted flow will be restricted by undersized ducting, use level (horizontal) to obtain proper drainage or of too many elbows, tees, bends, etc.). Always water from the heat exchange element and drip try to keep duct runs as short
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Outside Weatherhoods Stale Air Return System The weatherhoods must have built-in “bird” screen with The stale air return system is used to draw air from the 1/4 in (6.35 mm) minimum mesh to prevent birds and points in the building where the worst air quality prob- rodents from entering into the ductwork. Do not use lems occur. Balancing dampers and/or adjustable smaller mesh as it will be very susceptible to plugging grilles are recommended on all return air lines which up. Gravity dampers at th
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Fresh Air Supply System The fresh air supply ductwork from the HRV may be Supply air grilles may be ceiling or high wall mounted. directly connected to the return air duct of the forced Avoid locating incoming fresh air grilles that could air system. Check the air flow balance of the HRV with cause a direct draft on the occupants as the incoming the air handler blower both “ON” and “OFF” to air may be below room temperature. A reheat duct determine that it does not imbalance the HRV more heater
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Various Installation Types NOTE: When installing your HRV Figure 7A flexible duct connectors should Saddle Installation be installed between the HRV and the galvanized duct work. Vibration Isolators (Supplied by others) Threaded rod and U channel (Supplied by others) Hang unit with suspended rods Figure 7B and "U" channel members. Curb Mounted Curb is wood or metal May be anchored to (Supplied by others) floor,leaving space for drain connections Mount unit on wooden or metal curb assembly.
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Electrical Connections Automatic Self Test of Defrost Systems It is recommended that a licensed electrician make all electrical connections. It is very important that the If confirmation of the defrost system is needed, unit be properly grounded. It is recommended that a complete the following steps. separate 15 amp/120 volt circuit be used. 1. Disconnect power to the unit and open access/ WARNING: In order to prevent electric shock when maintenance doors. cleaning or servicing the HRV, it is
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Operation of the HRV These Recirculating Models of HRV's will provide fresh The exhaust fan to the outside is shut off during this time. clean air without sacrificing the savings of your energy Outside air does not enter the system until the pool room conserving home. When outdoor air is required for pool humidity exceeds the setpoint of the dehumidistat. room dehumidification, the aluminum cores of the HRV provide effective and efficient heat recovery exchange. The unit has an electronically c
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Ducting Requirements & Mode of Operation Ventilation Mode Defrost Mode In ventilation mode, both motors are running and air is In defrost mode both the supply and exhaust motors being exchanged with the outside through the supply run to draw air through the heat exchange cores. This and exhaust ducts. mode is automatic and does not require field adjustments. Defrost light on side of cabinet illuminates Recirculation Mode to indicate defrost operation. In recirculation mode the supply motor cont
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Speed Selection and Controls Air Conditioning (DX) Coil Model 1000RHCAC Only These recirculation models are equipped with a The Direct Expansion (DX) Coil located inside the cabi- 3 speed control, low medium and high, (Note - net is designed to dehumidify the incoming fresh air 1000RHC/RHCAC must be set to high speed from the outside and is not intended as an air condition- when air conditioning is required), as well as a ing unit for the space. The coil must be connected to lighted on/off swit
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Pitot Tube Air Flow Balancing It is necessary to have balanced air flows in an HRV. The volume of Insert the Pitot tube into the duct; pointing the tip into the airflow. air brought in from the outside must equal the volume of air exhaust- For general balancing it is sufficient to move the pitot tube around in ed by the unit. If the air flows are not properly balanced, then; the duct and take an average or typical reading. Repeat this proce- • The HRV may not operate at its maximum efficiency du
