IM2500AN 02/13

Installation Information

Water Piping Connections

Hot Water Generator Connections

Electrical

Startup Procedures

Troubleshooting

Preventive Maintenance

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Geothermal Heat Pump R-410A Refrigerant

1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6 Ton Single Speed

2, 3, 4, 5, 6 Ton Dual Capacity

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5 SERIES 500A11 INSTALLATION MANUAL

Table of Contents

Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Closed Loop Ground Source Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Open Loop Ground Water Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Hot Water Generator Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Electronic Thermostat Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Auxiliary Heat Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Auxiliary Heat Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Blower Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Physical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

The Aurora Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Reference Calculations and Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Unit Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Operating Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Compressor and Thermistor Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Refrigerant Circuit Guideline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Heat of Extraction/Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Service Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

4

5 SERIES 500A11 INSTALLATION MANUAL

1

N

2

D

3

V

4-6

049

7

G

8

1

9

1

10

1

11

C

12

T

13

L

14

0

15

A

16

N

Model Type N = 5 Series Water-to-Air

Compressor Type D = Dual Capacity

S = Single Speed

Cabinet Configuration V = Vertical

H = Horizontal

Unit Capacity 012, 018, 022, 026, 030, 036, 038,

042, 048, 049, 060, 064, 070, 072

Vintage G = Current

Voltage 1 = 208-230/60/1

Hot Water Generation 0 = No Hot Water Generation

1 = Hot Water Generation with factory

installed pump (018-072)

Blower Options 0 = PSC

1 = Variable Speed ECM (018-072)

2 = High Static Variable Speed ECM (036-049)

3 = High Static PSC (022, 030, 036, 042, 048)

4 = 5-Speed ECM (022-072)

NOTES: All models include sound kits as standard equipment. 1 Available on vertical configurations only (not available on horizontal models).

2 Control option not available with PSC motor.

IntelliStart Options N = None

A = IntelliStart (022-072)

Controls Options A = AuroraTM Base Control (ABC)

B = Aurora Advanced Control

(ABC and AXB)

C = Aurora Performance Package

(018-072) 2

D = Aurora Performance and

Refrigeration Package (018-072) 2

Filter Option 0 = 2 in. MERV 11 Filter

1 = AlpinePure 411 (022-072) 1

Return Air Configuration L = Left

R = Right

Discharge Air Configuration T = Top (vertical)

S = Side (horizontal)

E = End (horizontal)

B = Bottom (vertical 022-072)

R = Rear (vertical 042-072)

Water Coil Options C = Copper

N = Cupronickel

Model Nomenclature

5

5 SERIES 500A11 INSTALLATION MANUAL

WARNING: Before performing service or maintenance operations on a system, turn off main power switches to the indoor unit. If applicable, turn off the accessory heater power switch. Electrical shock could cause personal injury.

Installing and servicing heating and air conditioning

equipment can be hazardous due to system pressure and

electrical components. Only trained and qualified service

personnel should install, repair or service heating and air

conditioning equipment. Untrained personnel can perform

the basic maintenance functions of cleaning coils and

cleaning and replacing filters. All other operations should

be performed by trained service personnel. When working

on heating and air conditioning equipment, observe

precautions in the literature, tags and labels attached to the

unit and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work

gloves. Use a quenching cloth for brazing operations and

have a fire extinguisher available.

Moving and StorageMove units in the normal up orientation. Horizontal units

may be moved and stored per the information on the

packaging. Do not stack more than three units in total

height. Vertical units may be stored one upon another to

a maximum height of two units. Do not attempt to move

units while stacked. When the equipment is received, all

items should be carefully checked against the bill of lading

to be sure all crates and cartons have been received.

Examine units for shipping damage, removing the units

from the packaging if necessary. Units in question should

also be internally inspected. If any damage is noted, the

carrier should make the proper notation on the delivery

receipt, acknowledging the damage.

Unit LocationLocate the unit in an indoor area that allows for easy removal

of the filter and access panels. Location should have enough

space for service personnel to perform maintenance or

repair. Provide sufficient room to make water, electrical and

duct connection(s). If the unit is located in a confined space,

such as a closet, provisions must be made for return air to

freely enter the space by means of a louvered door, etc. Any

access panel screws that would be difficult to remove after

the unit is installed should be removed prior to setting the

unit. On horizontal units, allow adequate room below the

unit for a condensate drain trap and do not locate the unit

above supply piping. Care should be taken when units are located in unconditioned spaces to prevent damage from frozen water lines and excessive heat that could damage electrical components.

Safety Considerations

General Installation Information

Figure 1: Vertical Unit Mounting

2 in. ExtrudedPolystyrene

Filter Rack ConversionA 2 in. MERV 11 filter is shipped with the heat pump. To

field convert the filter rack to use 1 in. filters, simply insert

the provided plastic push pins into the holes located in the

filter rack. There are holes on the top and bottom of the

rack, underneath the instruction labels, for field conversion

to 1 in. filters.

Installing Vertical UnitsPrior to setting the unit in place, remove and discard the

compressor hold down shipping bolt located at the front of

the compressor mounting bracket.

Vertical units are available in left or right a