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Rheem Heating, Cooling and Water Heating         3

 

8

SELECTION PROCEDURE

(WITH EXAMPLE)

I. Define hot water load for the total

required domestic hot water

usage.

As an example, let’s assume that the

selected Tankless Water Heater for your

whole house solution is the RTG-74 and

your calculated heat gain and heat loss

values are as stated in section II.

II. Determine cooling and heating

requirements at design conditions:

The ACCA’s Manual J Residential Load

Calculation method is the established

trade standard, approved by ANSI, for

the correct siziing and selection of

Heating, Ventilation, Air-Conditioning

and Refrigeration (HVACR) equipment in

residential homes. The most recent

revision is the eight edition, an all-

inclusive new approach to ensuring that

Indoor Air Quality (IAQ) systems are as

efficient, safe, and healthy as possible.

Refer to the Air Conditioning Contractors

of America website at:

http://www.acca.org/tech/manualj/ or a

qualified HVACR contractor for further

assistance.

Assumptions:
Required Cooling Capacity . 48,000 BTU/HR

(Total Capacity)
Required Heating Capacity . 60,000 BTU/HR
Evaporator Air Quantity. . . . . . . . . 1600 CFM
External Static Pressure . . . . . . . 0.2 in. W.C.
Electrical Characteristics . . . . . . . . . 115-1-60

III. Determine total external static

pressure (ESP) at design

conditions:

Before using the Airflow Performance

Table calculate the total static pressure

required. From the given example, note

the Wet Coil Pressure Drop (selected

from the field supplied Evaporative

Cased Coil Installation Instructions), and

the Filter Pressure Drop. Determine both

static pressures at 1600 CFM:
Wet Coil Pressure Drop. . . . .30 in. W.C.

(From Coil Manufacturer’s Installation Instructions)

External Static Pressure . . . 0.2 in. W.C.

(Ductwork, etc.)

Filter Pressure Drop

0.8 in. W.C.

(0.8 inches if the included filter is used; refer to

the filter’s manufacturer’s instructions if another

filter is used.)

Total Static Pressure

0.58 in. W.C.

IV. Select unit based on required

cooling capacity airflow:

For an initial selection, choose a unit

size that will provide the required

airflow. Refer to Airflow Performance

Table. Note that at 0.6 ESP (external

static pressure) the RHWB-

06WMP48A unit will deliver 1560

CFM when configured for HIGH

speed.

V. Select heating capacity of unit

to provide the requisite design

condition:

From the Hydronic Air Handler/

Tankless Water Heater, note that the

unit RHWB-06WMP48A, (as selected

above) when matched with the RTG-

95 Tankless Water Heater, will

provide 59.2 MBH (59,200 BTU/HR)

at an input water temperature (to Air

Handler) of 150°F.

Model Number Nomenclature 

 

RHWB 06W M P 36

A

Rheem

Air Handler

Water

Denotes a major design change in the

product line (i.e. capacity)

Nominal Heating Capacity (BTU/HR)

06W 60,000

08W 80,000

10W 100,000

Revision

A = Rev 0

Blower Size

M = 11x7

R = 11x10

Variations

P = PSC Motor

48 = 15-1700 CFM

60 = 1900-2100 CFM

Design Series

R

Brand

Application

Type

Design

Series

Heating Output Designation

Blower

Size

Variations

Heat/Cool

Designation

Revision

Inlet Water

Temp = 150F

Output

BTU/HR

H

W

B

-0

6

W

M

P

36

A

R = Rheem H = Air handler

W = Water B = 2nd Series

06W

60,000

M = 11x7

P = PSC

48 = 1500-1700 CFM

A = Rev 0

08W

80,000

R = 11x10

60 = 1900-2100 CFM

10W

90,000

HYDRONIC AIR HANDLER PHYSICAL DATA AND SPECIFICATIONS

U.S. and Canadian Models

IMPORTANT: BEFORE PURCHASING THIS APPLIANCE, READ IMPORTANT ENERGY COST AND EFFICIENCY 

INFORMATION AVAILABLE FROM YOUR RETAILER.

HYDRONIC AIR HANDLER MODEL IDENTIFICATION

MODEL NUMBERS

RHWB-06WMP48A

RHWB-08WRP60A

RHWB-10WRP60A

NOMINAL HEATING CAPACITY RANGE (BTUH)

32,000 to 72,000

35,000 to 82,000

35,000 to 90,000

BLOWER (D x W) [mm]

11 x 7

[279 x 178]

11 x 10

[279 x 254]

11 x 10

[279 x 254]

MOTOR HP [W] - SPEEDS - TYPE

3

/

4

[559] - 4 - PSC

3

/

4

[559] - 4 - PSC

3

/

4

[559] - 4 - PSC

HEATING SPEED

Med Low

Med High

High

MOTOR FULL LOAD AMPS

9.5

9.5

9.5

HEAT EXT. STATIC PRESSURE (IN.W.C.) [kPa]

0.8 [.20]

0.8 [.20]

0.8 [.20]

HEATING CFM @ .8" [.199 kPa] W.C. ESP [L/s]

1000 [471]

1453 [685]

1818 [858]

RATED EXT. STATIC PRESSURE (IN.W.C.) [kPa]

0.5 [.12]

0.5 [.12]

0.5 [.12]

COOLING SPEED

High

High

High

TEMPERATURE RISE RANGE °F [°C]

40-70

[22.2-38.9]

35-65

[19.4-36.1]

35-65

[19.4-36.1]

STANDARD, HIGH VELOCITY

PERMANENT FILTER (IN.)

15

3

/

4

x 25 x 1

22

3

/

4

x 25 x 1

22

3

/

4

x 25 x 1

RETURN AIR CABINETS (OPT.)

RXGR-

FILTER SIZE

[mm]

C17B

(2) 12" x 16"

[305 x 406]

C24B

(2) 24" x 16"

[609 x 406]

C24B

(2) 24" x 16"

[609 x 406]

COOLING CFM @ .5" [.124 kPa] W.C. ESP [L/s]

1622 [765]

1871 [883]

1973 [931]

APPROX. SHIPPING WEIGHT (LBS) [kg]

118 [53.5]

137 [62.1]

145 [65.7]

Содержание RHWB series

Страница 1: ...r Handler Low profile 34 inch design is lighter easier to handle and leaves room for optional accessories Left or right side electric connections Integrated control board features diagnostics manages...

Страница 2: ...ween the tankless water heater and the hydronic coil 3 COOLING COIL In cooling mode the cooling coil operates the same as any other Rheem heating and cooling system STANDARD EQUIPMENT Completely assem...

Страница 3: ...major design change in the product line i e capacity Nominal Heating Capacity BTU HR 06W 60 000 08W 80 000 10W 100 000 Revision A Rev 0 Blower Size M 11x7 R 11x10 Variations P PSC Motor 48 15 1700 CF...

Страница 4: ...11 32 593 225 8 575 7 8 22 600 2025 32 528 0 0 0 1 25 2 51 10WR 241 2 622 2311 32 593 225 8 575 7 8 22 600 2025 32 528 0 0 0 1 25 2 51 UPFLOW MODELS Designates Metric Conversions FIGURE 4 CLEARANCE TO...

Страница 5: ...77 1246 1210 1161 1090 1019 High 1841 1795 1747 1681 1622 1560 1500 1420 1358 1288 Low 1319 1307 1300 1240 1236 1210 1177 1149 1100 1032 M Lo 1484 1480 1471 1463 1418 1385 1359 1314 1246 1166 RHWB 08W...

Страница 6: ...assembly High altitude capability up to 9 840 ft elevation above sea level no chip required Exclusive Guardian OFW overheat film wrap All Rheem tankless models are third party efficiency certified by...

Страница 7: ...and maintenance codes Built in electric blower Supplied with a 120 volt power cord Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements Freeze protection to 30 F Product appeara...

Страница 8: ...etting and maintenance codes Built in electric blower Supplied with a 120 volt power cord Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements Freeze protection to 30 F Product...

Страница 9: ...ay be used or a suitable 1 25 4 mm filter Designates Metric Conversions Rheem Heating Cooling and Water Heating 7 FILTER RACK FILTER SIZES INCHES mm MODEL RXGF CB BOTTOM RHWB 04WMAES 153 4 x 25 400 x...

Страница 10: ...heem Heating Cooling and Water Heating TYPICAL PIPING ARRANGEMENT FOR DIRECT SPACE HEATING AND DOMESTIC WATER SUPPLY WITH TANKLESS All piping to be 3 4 inch BV DV Evaporator Coil Air Separator Flow Sw...

Страница 11: ...Rheem Heating Cooling and Water Heating 11...

Страница 12: ...S A 04 10 DC FORM NO H11 534 Supersedes Form No G11 450 Rev 16 Rheem Heating Cooling and Water Heating 5 Designates Metric Conversions GENERAL TERMS OF LIMITED WARRANTY Rheem will furnish a replacemen...

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