Lifebreath 700DDPOOL, 1000RHCAC, 1200DDPOOL, 1000RHC User Manual

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OPERATION AND

INSTALLATION MANUAL

For Models:

700DDPOOL

1200DDPOOL

1000RHC

1000RHCAC

NOTE: ALTHOUGH SOME MODELS DIFFER IN OPERATION, THE BASIC STEPS ARE SIMILAR.

CAUTION

Before installation, careful consideration must be given to how the 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/Energy Recovery Ventilator (HRV), by using the balancing procedure in this manual.

It is always important to assess how the operation of any HRV may interact with vented combustion equipment (ie. Gas Furnaces, Oil Furnaces, Wood Stoves, etc.).

NEVER install an HRV in a situation where its normal operation, lack of operation or partial failure may result in the backdrafting or improper functioning of vented combustion equipment!!!

TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION

Installing Contractor

Telephone / Contact

Serial Number

Installation Date

Model

* LEAVE FOR HOMEOWNER

NOTE: Due to ongoing research and product development, specifications, ratings and dimensions are subject to change without notice.

TI-81C

1203

Table of Contents

 

Introduction .....................................................................

2

Technical Data - Model 700DDPOOL ............................

3

Technical Data - Model 1200DDPOOL ..........................

4

Technical Data - Model 1000RHC ..................................

5

Technical Data - Model 1000RHCAC.............................

5

Sizing Your Pool HRV......................................................

6

Calculation ......................................................................

7

System Installations .....................................................

7

Table 1 Evaporation Rate ...............................................

8

Table 2 Flowrate Factor ................................................

9

Installation Diagram Sketch #1 ....................................

10

Installation Diagram Sketch #2 ....................................

11

Location for Mounting ...................................................

12

The Ductwork System ...............................................

12

Outside Weatherhoods ................................................

13

Ducting from Weatherhoods ........................................

13

Warmside Ducting - General.........................................

13

Stale Air Return System ..............................................

13

Fresh Air Supply System .............................................

14

Various Installation Types .............................................

15

Electrical Connections ...............................................

16

Damper Defrost ............................................................

16

Auto Self Test of Defrost Systems ................................

16

Operation of the HRV..................................................

17

Ducting Requirements & Mode of Operation ...............

18

Speed Selection and Controls ......................................

19

Hydronic Reheat Coil ....................................................

19

Air Conditioning (DX) Coil ............................................

19

Pitot Tube Air Flow Balancing ...................................

20

Service/Maintenance ..................................................

21

Motor ...........................................................................

21

HRV Core......................................................................

21

Filters ............................................................................

22

Duct Work .....................................................................

22

Damper Motor ..............................................................

22

General Maintenance ...................................................

22

Troubleshooting Your HRV System...........................

23

Wiring Diagram ..........................................................

24

Warranty ......................................................................

25

Introduction

A Heat Recovery Ventilator (HRV) is designed to provide fresh air into a building while exhausting 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 summer months when the indoor space is air conditioned, the Heat Recovery Ventilator will help in cooling the incoming fresh air with the stale air that is being exhausted.

2

SPECIFICATIONS

CORES

Modular (2 section) patented aluminum heat recovery cores arranged for efficient cross-flow ventilation.Meets the flame spread and smoke developed classifications of the National Building Code and NFPA 90A (1993 Edition)

MOTORS

Two PSC, 3 speed single shafted, 120 VAC, 2.75 Amps each (5.5 total on high speed). HP - 1/10, 1625 RPM. Watts - total on high speed - 648.

FILTERS

Washable air filters in exhaust and supply air streams.

BLOWERS

Centrifugal type rated at 700 cfm (329 L/s) free air delivery. Each air stream has one single shafted motor driving a centrifugal blower.

CONNECTION DUCT SIZES

Five - 14" x 8" H (356 mm x 200 mm H).

MOUNTING

Unit to be set on support brackets hung by threaded rod type apparatus. (brackets and rod not provided.)

CASE

20 gauge prepainted galvanized steel (G60) for superior corrosion resistance. Insulated with foil faced insulation duct liner where required to prevent exterior condensation. Drain connections; two - 1/2" (12 mm) O.D.

CONTROLS

Illuminated power switch, 3 speed blower control, low voltage (24 VAC) terminals for connection of remote dehumidistat (supplied) and defrost light indicating automatic operation.

DEFROST

Supply bypass routes indoor air to defrost core.

WEIGHT 142 lbs. (64.4 kg) SHIPPING WEIGHT 167 lbs. (75.8 kg)

 

 

 

 

 

 

 

Model 700DD POOL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PERFORMANCE

 

 

 

 

 

 

 

 

 

 

 

AIRFLOWS (Each Air Stream)

VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(CFM)L/sAIRFLOW

423

(900)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

@(AMPS)DRAWCURRENT120

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

378

(800)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

329

(700)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.5 HIGH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HIGH SPEED

 

282

(600)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.0 MED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MED SPEED

 

235

(500)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.7 LOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOW SPEED

 

190

(400)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

143

(300)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

94

(200)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

(100)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOTAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25 (.1)

50 (.2)

75 (.3)

100 (.4)

125 (.5)

150 (.6)

175 (.7)

 

 

 

 

EXTERNAL STATIC PRESSURE IN PASCALS (IN. W.C.)

 

 

 

 

 

TEMPERATURE EFFECTIVENESS

 

 

 

EFFECTIVENESS

50%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

70%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: Exhaust Relative Humidity (RH) at 40%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

143

 

 

190

 

235

282

 

329

 

 

 

 

 

(300)

 

 

(400)

 

(500)

(600)

 

(700)

 

 

 

AIRFLOW IN L/s (CFM)

DIMENSIONS 700DDPOOL mm (inches)

SUPPLY AIR

FROM OUTSIDE

POOL AND

DEFROST

AIR

NOTE:

Service clearance is 760 mm (30 in.) from front access doors

EXHAUST AIR

FROM POOL

DRAIN CONNECTION 753 mm (29 5/8")

FRONT VIEW

All units conform to CSA and UL standards.

EXHAUST AIR

TO OUTSIDE

625 mm

(24 5/8 ")

SUPPLY AIR

TO BUILDING

MOUNTING POINTS

CONTROLS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

356 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

356 mm

 

 

 

 

 

 

 

 

 

 

 

 

(14")

 

165 mm

 

165

mm

(14")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(6 1/2")

 

(6 1/2")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

210 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

159 mm

 

 

 

 

 

 

 

 

 

 

 

 

(8 1/4")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(6 1/4")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200 mm

 

 

 

 

 

 

 

 

 

200 mm

 

 

 

 

 

 

 

 

 

 

 

 

(8")

 

 

 

 

 

 

 

 

 

(8")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

730 mm

 

 

 

 

 

 

 

 

 

730 mm

(28 3/4")

 

 

 

 

 

 

 

 

 

(28 3/4")

 

 

 

 

 

 

 

 

 

 

DISCHARGE SIDE

 

 

 

 

INLET SIDE

WARRANTY

All units carry a 15 year warranty on the heat recovery cores and a 2 year replacement parts warranty.

DATE: ____________________________________________PROJECT: _______________________________________

MECHANICAL CONTRACTOR: _________________________________________________________________________

TI-104

3

1203

 

Model 1200DD POOL

SPECIFICATIONS

CORES

Modular (3 section) patented aluminum heat recovery cores arranged for efficient cross-flow ventilation. Meets the flame spread and smoke developed classifications of the National Building Code and NFPA 90A (1993 Edition).

MOTORS

Two PSC, 3 speed double shafted, 120 VAC, 4 Amps each (8.1 total on high speed). HP - 1/4, 1625 RPM. Watts - total on high speed - 972.

FILTERS

Washable air filters in exhaust and supply air streams.

BLOWERS

Centrifugal type rated at 1200 cfm (566 L/s) free air delivery. Each air stream has one double shafted motor driving a centrifugal blower.

CONNECTION DUCT SIZES

Five - 20" x 8" H (508 mm x 200 mm H).

MOUNTING

Unit to be set on support brackets hung by threaded rod type apparatus. (brackets and rods not provided).

CASE

20 gauge prepainted galvanized steel (G60) for superior corrosion resistance. Insulated with foil faced insulation duct liner where required to prevent exterior condensation. Drain connections; two - 1/2" (12 mm) O.D.

CONTROLS

Illuminated power switch, 3 speed blower control, low voltage (24 VAC) terminals for connection of remote dehumidistat (supplied) and defrost light indicating automatic operation.

DEFROST CONTROLS

Supply bypass damper routes indoor air to defrost core.

WEIGHT 191 lbs. (87 kg) SHIPPING WEIGHT 215 lbs. (98 kg)

DIMENSIONS 1200DDPOOL mm (inches)

 

 

 

 

PERFORMANCE

 

 

 

 

 

 

 

 

 

 

AIRFLOWS (Each Air Stream)

 

 

 

 

(CFM)L/s

613 (1300)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

@(AMPS)120

566 (1200)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.1 HIGH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

518 (1100)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.8 MED

 

 

472 (1000)

 

 

 

 

 

 

 

 

 

 

 

 

 

HIGH

SPEED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIRFLOW

423 (900)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.1 LOW

DRAWCURRENT

 

378 (800)

 

 

 

 

 

 

 

 

 

 

 

 

MED

SPEED

 

 

 

 

 

329 (700)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

282 (600)

 

 

 

 

 

 

 

 

 

 

 

 

LOW

SPEED

 

 

 

 

 

 

 

235 (500)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOTAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25 (.1)

50 (.2)

75 (.3)

100 (.4)

125 (.5)

150 (.6)

175 (.7)

 

 

 

 

 

 

 

 

 

 

EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.)

 

 

 

 

 

 

TEMPERATURE EFFECTIVENESS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EFFECTIVENESS 50%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

70%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: Exhaust Relative Humidity (RH) at 40%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

235

282

329

378

423

472

518

566

 

 

(500)

(600)

(700)

(800)

(900)

(1000)

(1100)

(1200)

 

AIRFLOW IN L/s (CFM)

SUPPLY AIR

FROM OUTSIDE EXHAUST AIR

TO OUTSIDE

POOL AND

DEFROST AIR

NOTE:

Service clearance is 760 mm (30 in.) from front access doors

EXHAUST AIR

FROM POOL

DRAIN CONNECTION

759 mm (29 7/8") SUPPLY AIR

 

FRONT VIEW

TO BUILDING

 

All units conform to CSA and UL standards.

MOUNTING POINTS

CONTROLS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

508 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

508 mm

 

 

 

 

 

 

 

263

mm

 

263 mm

 

 

 

 

 

 

(20")

 

 

(20")

 

 

 

 

 

 

 

 

(10 3/8")

 

(10 3/8")

 

 

 

 

 

 

 

172 mm

 

 

 

 

625 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

159 mm

 

 

 

 

 

 

 

 

(24 5/8 ")

 

 

 

 

 

 

 

(6 3/4")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(5 7/8")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200 mm

 

 

 

 

 

 

 

 

200 mm

 

 

 

 

 

 

(8")

 

 

 

 

 

 

 

 

(8")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1055 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1055 mm

 

 

 

 

(41 1/2")

 

 

 

 

 

 

 

 

(41 1/2")

 

 

 

 

 

DISCHARGE SIDE

 

 

 

 

 

 

 

INLET SIDE

WARRANTY

Units carry a 15 year warranty on the heat recovery cores and a 2 year replacement parts warranty.

DATE: ___________________________________________PROJECT: _________________________________________

MECHANICAL CONTRACTOR: _________________________________________________________________________

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

TI -121

 

 

 

 

 

1203

SPECIFICATIONS

CORES

Modular (3 section) patented aluminum heat recovery cores arranged for high efficiency cross-flow ventilation. Meets the flame spread and smoke developed classifications of the National Building Code and NFPA 90A (1993 Edition).

MOTORS

Two PSC, 3 speed double shafted, 120 VAC, 3.95 Amps each (7.9 total on high speed). HP - 1/4, 1625 RPM. Watts - total on high speed - 848.

FILTERS Washable air filters in exhaust and supply air streams.

BLOWERS

Each air stream has one double shafted motor driving 2 centrifugal blowers.

HYDRONIC REHEAT COIL

Standard built-in coil in both 1000RHC and 1000RHCAC. Rated 35,000 BTU

@ 140°F, 3 US gal./min. Design temperature drop is 20°F, fluid pressure drop is 1.3 feet WG at rated flow, 3/4" fittings.

CONNECTION DUCT SIZES Five - 20" X 8" H (508 mm x 200 mm H).

DIRECT EXPANSION (DX) EVAPORATOR COIL (model 1000RHCAC only) Factory installed 1.5 ton DX coil, 0.875" OD suction side, 0.625" OD liquid side, built-in orifice.

MOUNTING

Two brackets under cabinet, connect to threaded rod type supports (not included).

CASE

20 gauge prepainted galvanized steel (G60) for superior corrosion resistance. Insulated with foil faced insulation where required to prevent exterior condensation. Drain connections; two - 1/2" (12 mm) O.D.

CONTROLS

Illuminated power switch, 3 speed blower control, low voltage (24 VAC) terminals to connect remote controls (not included), defrost light indicating defrost/recirculation mode.

DEFROST CONTROLS

Supply bypass damper routes indoor air to defrost core.

WEIGHT 255 lbs.(116 Kg) SHIPPING WEIGHT 280 lbs.(127 Kg)

DIMENSIONS 1000RHC/RHCAC mm (inches)

Model 1000RHC and

Model 1000RHCAC

PERFORMANCE

AIRFLOWS (Each Air Stream)

L/s (CFM)

613 (1300)

 

 

 

 

 

 

 

VAC

 

 

 

 

 

 

 

(AMPS) @ 120

566 (1200)

 

 

 

 

 

 

8.1 HIGH

518 (1100)

 

 

 

 

 

 

 

472 (1000)

 

 

 

 

HIGH SPEED

7.8 MED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIRFLOW

423 (900)

 

 

 

 

 

 

 

CURRENT DRAW

378 (800)

 

 

 

 

 

 

7.1 LOW

 

 

 

 

 

 

 

329 (700)

 

 

 

 

 

 

 

282 (600)

 

 

 

 

 

 

 

235 (500)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOTAL

 

25 (.1)

50 (.2)

75 (.3)

100 (.4)

125 (.5)

150 (.6)

175 (.7)

200 (.8)

 

 

EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.)

TEMPERATURE EFFECTIVENESS

EFFECTIVENESS

50%

 

70%

 

60%

NOTE: Exhaust Relative Humidity (RH) at 40%

235

282

329

378

423

472

518

566

(500)

(600)

(700)

(800)

(900)

(1000)

(1100)

(1200)

AIRFLOW IN L/s (CFM)

Performance data includes both reheat and DX coil installed. Note there is little change in air flow with the DX coil removed.

DEFROST &

 

 

SUPPLY AIR

EXHAUST AIR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FROM OUTSIDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECIRCULATION

 

 

 

 

 

 

TO OUTSIDE

 

 

 

CONTROLS

 

 

 

 

 

 

 

 

 

 

AIR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

508 mm

 

 

 

 

 

 

 

 

263 mm

 

508 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(10 3/8 ")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(20")

 

 

 

 

 

 

 

 

(20 ")

 

 

 

 

NOTE:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

625 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

149 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Service clearance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is 760 mm (30 in.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(24 5/8")

 

 

 

 

(5 7/8 ")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

263 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200 mm

 

(10 3/8 ")

 

 

 

 

 

 

 

508 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(8")

 

 

 

 

 

 

 

 

 

 

 

(20 ")

 

 

 

 

EXHAUST AIR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FROM BUILDING

1088 mm

 

 

 

 

 

 

 

 

 

 

 

 

1055 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

DRAIN CONNECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(46 3/4")

SUPPLY AIR COIL FITTINGS (41 1/2")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FRONT VIEW

TO BUILDING

 

 

 

DISCHARGE SIDE

 

 

 

 

INLET SIDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

99-101 Sixty Minute Remote Timer

99-130 Remote Wall Mount Dehumidistat Control

24VAC only

All units conform to CSA and UL standards.

WARRANTY

Units carry a 15 year warranty on the heat recovery cores and a 2 year replacement parts warranty.

NOTE: Hydronic reheat coil is designed to temper the ventilation air (after heat recovery) back to room temperature, and is not intended for use as a primary heating source for the space.

Additional controls MUST be added to pump system (not included / not available from Nutech) feeding the coil to ensure continuous water flow through it, and prevent freezing of the coil.

DX coil is designed to reduce humidity brought in from outside during ventilation. Coil MUST be connected to an outdoor condensing unit (not included) by certified trades person. Not intended as a primary air conditioning system for the space.

DATE:_____________________________________________PROJECT: ________________________________________

MECHANICAL CONTRACTOR: __________________________________________________________________________

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

TI-115

1203

Sizing your Pool Heat Recovery Ventilator

Determining ventilation requirements for Indoor Pool enclosures

There are two primary reasons to ventilate an indoor pool enclosure. One is to provide effective and efficient control of harmful humidity levels. The other reason is to control the Indoor Air Quality (IAQ) in the pool room enclosure. When an HRV system is adequately sized to control humidity, the IAQ will automatically be controlled for most situations. Therefore this HRV sizing guide will focus on the amount of moisture introduced into the air from the pool and the moisture removing capabilities of an HRV at various flow rates.

The amount of moisture evaporated from a pool is effected by:

1.Surface area of the pool

2.The water temperature

3.Indoor air temperature

4.Indoor relative humidity (R.H.)

5.The amount of activity in the pool room

These short rules will help in understanding how these factors will effect moisture generation

1.Larger areas of water will evaporate greater amounts of water.

(By using a pool cover the surface area of the pool will be reduced and will substantially reduce water evaporation.)

2.Higher water temperatures will increase water evaporation.

3.Lower indoor air temperatures will increase water evaporation.

4.Lower indoor relative humidity will increase water evaporation.

5.Activities in the pool will increase the water surface area, therefore water evaporation will increase.

Moisture removal capabilities

In addition to the amount of air being exchanged, moisture removal depends largely on the moisture content of both the inside and outside air. The trends below outline these principles.

The higher the indoor relative humidity, the larger the moisture removing capabilities.

The higher the indoor temperature, the larger the moisture removing capabilities

The lower the outdoor temperature, the larger the moisture removing capabilities.

Detailed Calculation of Total

Ventilation Requirements

The following charts and equations can be used to accurately size the HRV for a indoor pool application. At this time some decisions should be made with regards to:

Pool water temperature

Indoor air temperature

Relative humidity

It should be noted that the construction and quality of materials used in the construction of the pool room will influence the size of HRV required. High quality windows such as triple glazed, argon filled will allow a higher indoor humidity level before condensation will occur. A pool room built with loose construction techniques will have a higher natural ventilation rate than that of a room built to higher standards. It is recommended for all applications it is assumed there is no natural ventilation.

The first table contains the evaporation rate of water based on the water temperature, room temperature, and room relative humidity.

The second table contains the flowrate factor based on the indoor temperature, outdoor temperature, and room relative humidity.

The total ventilation rate per square foot of water surface area is the result of these calculations. The total ventilation rate is this product multiplied by the water surface area.

6

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 indoor and outdoor air temperatures. Outdoor design temperatures are published by organizations such as ASHRAE. Do not us day to day temperatures for this calculation.

1. From Table 1, select the appropriate evaporation rate based on the room air temperature, water temperature, and relative humidity.

Evaporation Rate = 0.052

2.From Table 2, select the corresponding flowrate factor depending on the indoor air temperature, outdoor temperature, and room relative humidity.

Flowrate Factor = 21.70

3.Multiply the values obtained from step 1 and step 2 to obtain the minimum CFM required per square foot of pool surface area.

Evaporation rate

X

Flowrate

=

CFM / square foot of water surface area

0.052

 

X

21.70

=

1.12

4. Multiply the value in step 3 by the area of the pool

 

Area of pool

X

Value for step 3

=

CFM

512

X

 

1.12

=

573

System Installation

It is necessary to design and size the duct distribution system for both the supply and the exhaust air streams.

Proper duct design will

Minimize air flow requirements

Ensure a comfortable environment by using reheat if required

Optimize humidity control, including eliminating condensation on windows by blanketing the windows with airflow

Please refer to sketch 1 and 2 for typical duct layouts.

7

TABLE 1

 

 

Evaporation Rate

 

 

 

 

 

 

 

 

 

 

 

 

 

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

0.071

0.098

0.090

0.083

0.111

0.103

0.096

0.125

0.117

0.110

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

74

0.063

0.055

0.047

0.073

0.065

0.057

0.084

0.076

0.068

0.096

0.088

0.079

0.109

0.101

0.092

0.123

0.115

0.106

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

76

0.061

0.052

0.043

0.071

0.062

0.053

0.082

0.073

0.064

0.094

0.085

0.076

0.107

0.098

0.089

0.121

0.112

0.103

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

78

0.059

0.049

0.039

0.069

0.059

0.049

0.080

0.070

0.060

0.091

0.082

0.072

0.104

0.095

0.085

0.118

0.109

0.099

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

0.056

0.046

0.035

0.066

0.056

0.045

0.077

0.067

0.056

0.089

0.079

0.068

0.102

0.091

0.081

0.116

0.105

0.095

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

82

0.053

0.042

0.031

0.063

0.052

0.041

0.074

0.063

0.052

0.086

0.075

0.064

0.099

0.088

0.077

0.113

0.102

0.091

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

84

0.050

0.039

0.027

0.060

0.049

0.037

0.071

0.060

0.048

0.083

0.071

0.060

0.096

0.084

0.073

0.110

0.098

0.087

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

86

0.047

0.035

0.022

0.057

0.045

0.032

0.068

0.056

0.043

0.080

0.068

0.055

0.093

0.080

0.068

0.107

0.094

0.082

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

88

0.044

0.031

0.017

0.054

0.041

0.027

0.065

0.052

0.038

0.077

0.063

0.050

0.090

0.076

0.063

0.104

0.090

0.077

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

78

 

 

81

84

 

87

 

90

 

 

93

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

+ 18 hidden pages