Bryant 607C024, 607C030, 607C036, 607C042, 607C048 Installation Instructions Manual

607C
PREFERREDt 14 SEER
SINGLE--PACKAGED HEAT PUMP SYSTEM WITH PURONr
(R--410A) REFRIGERANT SINGLE AND THREE PHASE
NOMINAL 2--5 TONS (SIZES 024--060)

Installation Instructions

NOTE: Read the entire instruction manual before starting the

installation.

NOTE: Installer: Make sure the Owner’s Manual and Service
Instructions are left with the unit after installation.

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS 1.........................

INTRODUCTION 2...................................

RECEIVING AND INSTALLATION 2--9..................

Check Equipment 2..................................

Identify Unit 2....................................

Inspect Shipment 2.................................

Provide Unit Support 2...............................

Roof Curb 2......................................

Slab Mount 2.....................................

Ground Mount 2..................................

Provide Clearances 2.................................

Rig and Place Unit 2.................................

Inspection 2......................................

Use of Rigging Bracket 3............................

Select and Install Ductwork 6...........................

Converting Horizontal Discharge Units to Downflow

(Vertical) Discharge Units 8..........................

Provide for Condensate Disposal 8......................

Install Electrical Connections 8.........................

High--Voltage Connections 8.........................

Special Procedures for 208--V Operation 9...............

Control Voltage Connections 9........................

Standard Connections 9.............................

Transformer Protection 9............................

Accessory Electric Heaters Installation 9................

607C Sequence of Operation 9........................

PRE--START--UP 15...................................

START--UP 15--17.....................................

Checking Cooling & Heating Control Operation 15........

Check for Refrigerant Leaks 15.........................

Start--Up Adjustments 15.............................

Checking & Adjusting Refrigerant Charge 16............

Indoor Airflow & Airflow Adjustments 16..............

Continuous Fan Operation 16........................

Defrost Control 17...................................

Quiet Shift 17.....................................

Defrost 17.......................................

MAINTENANCE 18--23................................

Air Filter 18........................................

Indoor Blower and Motor 18...........................

Outdoor Coil, Indoor Coil, & Condensate Drain Pan 20......

Outdoor Fan 21.....................................

Electrical Controls and Wiring 21.......................

Refrigerant Circuit 21.................................

Indoor Airflow 21...................................

Metering Devices-- TXV & Piston 21....................

Pressure Switches 22.................................

Loss of Charge Switch 22.............................

High Pressure Switch 22..............................

Copeland Scroll compressor (Puron Refrigerant) 22.........

TROUBLESHOOTING 23..............................

START-- UP CHECKLIST 23............................

Installation and servicing of this equipment can be hazardous due
to mechanical and electrical components. Only trained and
qualified personnel should install, repair, or service this equipment.

Untrained personnel can perform basic maintenance functions such
as cleaning and replacing air filters. All other operations must be
performed by trained service personnel. When working on this
equipment, observe precautions in the literature, on tags, and on
labels attached to or shipped with the unit and other safety
precautions that may apply.

Follow all safety codes. Installation must be in compliance with
local and national building codes. Wear safety glasses, protective
clothing, and work gloves. Have fire extinguisher available. Read
these instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit.

Recognize safety information. This is the safety--alert symbol
When you see this symbol on the unit and in instructions or manu­als, be alert to the potential for personal injury. Understand these
signal words: DANGER, WARNING, and CAUTION. These
words are used with the safety--alert symbol. DANGER identifies
the most serious hazards which will result in severe personal injury
or death. WARNING signifies hazards which could result in per-

C99062

Fig. 1 -- Unit 607C

Refrigerant System 22................................

Refrigerant 22....................................

Compressor Oil 22.................................

Servicing Systems on Roofs with Synthetic Materials 22....

Liquid Line Filter Drier 23...........................

PuronR (R--410A) Refrigerant Charging 23.............

System Information 23................................

Loss of Charge Switch 23............................

Check Defrost Thermostat 23.........................

SAFETY CONSIDERATIONS

.

1

sonal injury or death. CAUTION is used to identify unsafe practic­es which may result in minor personal injury or product and prop­erty damage. NOTE is used to highlight suggestions which will
result in enhanced installation, reliability, or operation.

!

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal
injury or death.

Before installing or servicing system, always turn off main
power to system. There may be more than one disconnect
switch. Turn off accessory heater power switch if
applicable. TAG THE DISCONNECT SWITCH WITH A
SUITABLE WARNING LABEL.

!

WARNING

607C

FIRE, EXPLOSION, ELECTRICAL SHOCK AND
CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal
injury, death or property damage.

A qualified installer or agency must use only
factory--authorized kits or accessories when modifying this
product.

INTRODUCTION

The 607C heat pump is fully self-- contained and designed for
outdoor installation. (See Fig. 1) Standard units are shipped in a
horizontal--discharge configuration for installation on a
groundlevel slab. Standard units can be converted to downflow
(vertical) discharge configurations for rooftop applications.

RECEIVING AND INSTALLATION

Step 1 — Check Equipment

Identify Unit

The unit model number and serial number are stamped on the unit
identification plate. Check this information against shipping
papers.

Inspect Shipment

Inspect for shipping damage while unit is still on shipping pallet. If
unit appears to be damaged or is torn loose from its anchorage,
have it examined by transportation inspectors before removal.
Forward claim papers directly to transportation company.
Manufacturer is not responsible for any damage incurred in transit.
Check all items against shipping list. Immediately notify the
nearest equipment distributor if any item is missing. To prevent
loss or damage, leave all parts in original packages until
installation.

Step 2 — Provide Unit Support

Roof Curb

Install accessory roof curb in accordance with instructions shipped
with curb (See Fig. 5). Install insulation, cant strips, roofing, and
flashing. Ductwork must be attached to curb.

IMPORTANT: The gasketing of the unit to the roof curb is critical
for a watertight seal. Install gasketing material supplied with the
roof curb. Improperly applied gasketing also can result in air leaks
and poor unit performance.

Curb should be level to within 1/4 in. (6 mm) (See Fig. 6). This is
necessary for unit drain to function properly. Refer to accessory
roof curb installation instructions for additional information as
required.

Slab Mount

Place the unit on a solid, level concrete pad that is a minimum of 4
in. (102 mm) thick with 2 in. (51 mm) above grade (See Fig. 7).
The slab should extend approximately 2 in. (51 mm) beyond the
casing on all 4 sides of the unit. Do not secure the unit to the slab
except when required by local codes.

Ground Mount

The unit may be installed either on a slab or placed directly on the
ground if local codes permit. Place the unit on level ground
prepared with gravel for condensate discharge.

Step 3 — Provide Clearances

The required minimum service clearances are shown in Fig. 2 and

3. Adequate ventilation and outdoor air must be p rovided. The
outdoor fan draws air through the outdoor coil and discharges it
through the top fan grille. Be sure that the fan discharge does not
recirculate to the outdoor coil. Do not locate the unit in either a
corner or under an overhead obstruction. The minimum clearance
under a partial overhang (such as a normal house overhang) is 48
in. (1219 mm)above the unit top. The maximum horizontal
extension of a partial overhang must not exceed 48 in. (1219 mm).

IMPORTANT: Do not restrict outdoor airflow. An air restriction
at either the outdoor--air inlet or the fan discharge may be
detrimental to compressor life.

Do not place the unit where water, ice, or snow from an overhang
or roof will damage or flood the unit. Do not install the unit on
carpeting or other combustible materials. Slab--mounted units
should be at least 4 in. (102 mm) above the highest expected water
and runoff levels. Do not use unit if it has been under water.

Step 4 — Rig and Place Unit

Rigging and handling of this equipment can be hazardous for many
reasons due to the installation location (roofs, elevated structures,
etc.).

Only trained, qualified crane operators and ground support staff
should handle and install this equipment.

When working with this equipment, observe precautions in the
literature, on tags, stickers, and labels attached to the equipment, and
any other safety precautions that might apply.

Trainingforoperators of thelifting equipment should include,but not
be limited to, the following:

1. Application of the lifter to the load, and adjustment of the lifts
to adapt to various sizes or kinds of loads.

2. Instruction in any special operation or precaution.

3. Condition of the load as it relates to operation of the lifting kit,
such as balance, temperature, etc.

Follow all applicable safety codes. Wear safety shoes and work
gloves.

INSPECTION

The lifting/rigging bracket is engineered and designed to be installed
only on Small PackagedProducts.This bracket is to beused torig/lift
a Small Packaged Product onto roofs or other elevated structures.

Prior to initial use, and at monthly intervals, all rigging brackets and
straps should bevisually inspected for any damage,evidence of wear,
structural deformation, or cracks. Particular attention should be paid
to excessive wear at hoist hooking points and load support areas.
Brackets or straps showing any kind of wear in these areas must not
be used and should be discarded.

2

!

WARNING

!

WARNING

UNIT FALLING HAZARD

Failure to follow this warning could result in personal injury
or death.

Never stand beneath rigged units or lift over people.

!

PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal
injury/death or property damage.

Rigging brackets for one unit use only. When removing a
unit at the end of its useful life, use a new set of brackets.

USE OF RIGGING BRACKET

WARNING

Field Installation of Rigging Bracket (if not already
installed)

1. Remove unit from shipping carton. Leave top shipping skid
on the unit for use as a spreader bar to prevent the rigging
straps from damaging the unit. If theskid is not available, use
a spreader bar of sufficient length to protect the unit from
damage.

2. Remove 4 screws in unit corner posts.

3. Attach each of the 4 metal rigging brackets under the panel
rain lip. Use the screws removed in step 2 aboveto securethe
brackets to the unit.

PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal
injury/death or property damage.

Rigging bracket MUST be under the rain lip to provide
adequate lifting.

!

PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal
injury/death or property damage.

Do not strip screws when re--securing the unit. If a screw is
stripped, replace the stripped one with a larger diameter screw
(included). When straps are taut, the clevis should be a
minimum of 36 in. (914 mm) above the unit top cover.

WARNING

Rigging/Lifting of Unit

1. Bend top of bracketsdown approximately 30 degrees from the
corner posts.

2. Attach straps of equal length to the rigging brackets at
opposite ends of the unit. Be sure straps are rated to hold the
weight of the unit.

3. Attach a clevisof sufficient strengthin the middleof the straps.
Adjust the clevis location to ensure unit is lifted level with the
ground.

4. Remove corner post screws and rigging brackets, then
re--install screws.

After the unit is placed on the roof curb or mounting pad, removethe
top crating.

607C

3

607C

A08084

Fig. 2 -- 607C024--030 Unit Dimensions

4

607C

A08085

Fig. 3 -- 607C036--060 Unit Dimensions

5

12

DETAIL A

(914 mm)

RIGGING WEIGHTS (SMALL CABINET) RIGGING WEIGHTS (LARGE CABINET)

607C

Unit

Shipping

Weight

Rigging

Weight

* For 460 volt units, add 14 lb (6.4 kg) to the weight.

024 030 036*

lb kg lb kg lb kg lb kg lb kg lb kg

354 171 364 165 419 190

317 144 327 148 382 173

Step 5 — Select and Install Ductwork

The design and installation of the duct system must be in
accordance with the standards of the NFPA for installation of
non--residence type air conditioning and ventilating systems,
NFPA 90A or residence--type, NFPA 90B and/or local codes and
ordinances.

Select and size ductwork, supply--air registers, and return air grilles
according to ASHRAE (American Society of Heating,
Refrigeration, and Air Conditioning Engineers) recommendations.

The unit has duct flanges on the supply-- and return--air openings
on the side of the unit.

!

WARNING

PERSONAL INJURY HAZARD

Failure to follow this warning could result in personal
injury or death.

For vertical supply and return units, tools or parts could
drop into ductwork Install a 90 degree turn in the return
ductwork between the unit and the conditioned space. If a
90 degree elbow cannot be installed, then a grille of
sufficient strength and density should be installed to prevent
objects from falling into the conditioned space. Units with
electric heaters require 90 degree elbow in supply duct.

34

A08015

Unit

Shipping

Weight

Rigging

Weight

Fig. 4 -- Rigging Weights

When designing and installing ductwork, consider the following:

1. All units should have field--supplied filters or accessory
filter rack installed in the return--air side of the unit.
Recommended sizes for filters are shown in Table 1.

2. Avoid abrupt duct size increases and reductions. Abrupt
change in duct size adversely affects air performance.

IMPORTANT: Use flexible connectors between ductwork and
unit to prevent transmission of vibration. Use suitable gaskets to
ensure weather tight and airtight seal. When electric heat is
installed, use fireproof canvas (or similar heat resistant material)
connector between ductwork and unit discharge connection. If
flexible duct is used, insert a sheet metal sleeve inside duct. Heat
resistant duct connector (or sheet metal sleeve) must extend 24--in.
(610 mm) from electric heater element.

3. Size ductwork for cooling air quantity (cfm). The minimum
air quantity for proper electric heater operation is listed in
Table 2. Heater limit switches may trip at air quantities
below those recommended.

4. Seal, insulate, and weatherproof all external ductwork. Seal,
insulate and cover with a vapor barrier all ductwork passing
through conditioned spaces. Follow latest Sheet Metal and
Air Conditioning Contractors National Association
(SMACNA) and Air Conditioning Contractors Association
(ACCA) minimum installation standards for residential
heating and air conditioning systems.

5. Secure all ducts to building structure. Flash, weatherproof,
and vibration--isolate duct openings in wall or roof
according to good construction practices.

A08005

042* 048* 060*

464 210 484 220 514 233

427 164 447 203 477 216

6

HVAC unit

Scre w

(NO TE A)

*Gask eting

outer flange

Flashing field

supplied

Roofing material

field supplied

Cant str ip

field supplied

base

Gask eting

inner flange*

Wood nailer*

Roofcurb*

Insulation (field

supplied)

Duct wo

field supplied

HVAC unit

base

Scre w

(NOTE A)

*Gask eting

outer flange

Flashing field

supplied

Roofing material

field supplied

rk

Cant str ip

field supplied

Gask eting

inner flange*

Duct wo rk

field supplied

Wood nailer*

Roofcurb*

Insulation (field

supplied)

Roof

*Provided with roofcurb

Roof Curb for Small Cabinet

Note A: When unit mounting scre w is used,

retainer must also be used.

bracket

Supply opening
(B x C)

Return opening

(B X C)

UNIT SIZE

607C024-- 030

607C036-- 060

B Typ.

5

44

/

16

"

(1126 mm)

d

Insulate
deck pan

CATALOG

NUMBER

CPRFCURB006A00 8 (203) 11 (279) 16--1/2 (419) 28--3/4 (730)
CPRFCURB007A00 14 (356) 11 (279) 16--1/2 (419) 28--3/4 (730)
CPRFCURB008A00 8 (203) 16--3/16 (411) 17--3/8 (441) 40--1/4 (1022)
CPRFCURB009A00 14 (356) 16--3/16 (411) 17--3/8 (441) 40--1/4 (1022)

C Typ .

D

Long

Support

Short

Support

A

IN. (MM)

A

NOTES:

1. Roof curb must be set up for unit being installed.

2. Seal strip must be applied, as required, to unit being installed.

4. Dimension in ( ) are in millimeters.

5. Roof curb is made of 16---gauge steel.

6. Attach ductwork to curb (flanges of duct rest on curb).

7. Insu lated panels: 1- --in. (25 mm) thick fiberglass 1 lb. den sity.

8. When unit mounting screw is used (see Note A), a retainer bracket must
be used as well. This bracket must also be used when required by code for
hurricane or seismic conditions. This bracket is available through Micrometl.

Fig. 5 -- Roof Curb Dimensions

Insulated
deck pan

B

IN. (MM)

*Provided with roofcurb

Roof Curb for

Note A: When unit mounting scre w is used,

retainer bra cket must also be used.

Large Cabinet

R/A

Gask et around

duct

Gask et around

outer edge

C

IN. (MM)

Roof

S/A

D

IN. (MM)

607C

C00076

7

A

C

MAXIMUM ALLOWABLE

B

A-B

(6.35)

1/4

DIFFERENCE in. (mm)

B-C

(6.35)

1/4

Fig. 6 -- Unit Leveling Tolerances

1/4

A-C

(6.35)

A07925

If the installation requires draining the condensate water away from
the unit, install a field--supplied 2 --in. (51mm) trap at the
condensate connection to ensure proper drainage. Condensate trap
is available as an accessory or is field--supplied. Make sure that the
outlet of the trap is at least 1 in. (25 mm) lower than the unit
drain--pan condensate connection to prevent the pan from
overflowing. Connect a drain trough using a minimum of
field--supplied 3/4--in. PVC or field--supplied 3/4--in. copper pipe
at outlet end of the 2--in. (51 mm) trap. (See Fig. 11) Do not
undersize the tube. Pitch the drain trough downward at a slope of at
least 1 in. (25 mm) every 10 ft (3 m) of horizontal run. Be sure to
check the drain trough for leaks. Prime the trap at the beginning of
the cooling season start--up.

Step 7 — Install Electrical Connections

607C

2˝

(50.8mm)

OPTIONAL

RETURN

AIR

OPENING

OPTIONAL

SUPPLY

AIR

OPENING

!

UNIT COMPONENT DAMAGE HAZARD

Failure to follow this caution may result in damage to the unit
being installed.

1. Make all electrical connections in accordance with NEC
NFPA 70 (latest edition) and local electrical codes

CAUTION

governing such wiring. In Canada, all electrical

EVAP. COIL COND. COIL

A07926

Fig. 7 -- Slab Mounting Detail

connections must be in accordance with CSA standard
C22.1 Canadian Electrical Code Part 1 and applicable
local codes. Refer to unit wiring diagram.

2. Use only copper conductor for connections between

Converting Horizontal Discharge Units to Downflow
(vertical) Discharge

Units

field--supplied electrical disconnect switch and unit. DO
NOT USE ALUMINUM WIRE.

3. Be sure that high-- voltage power to unit is within

!

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury
or death.

Before installing or servicing system, always turn off main
power to system. There may be more than one disconnect

operating voltage range indicated on unit rating plate. On
3--phase units, ensure phases are balanced within 2
percent. Consult local power company for correction of
improper voltage and/or phase imbalance.

4. Do not damage internal components when drilling
through any panel to mount electrical hardware, conduit,
etc.

switch. Tag the disconnect switch with a suitable warning
label.

1. Open all electrical disconnects before starting any service
work.

2. Remove horizontal duct covers to access bottom return and
supply knock out panels.

3. Use a screwdriver and hammer to remove the panels in the
bottom of the unit base.

NOTE: These panels are held in place with tabs similar to an
electrical knockout.

4. Reinstall the horizontal duct covers (Fig. 10) to block off
the horizontal air openings.

NOTE: Avoid abrupt duct size increases and reductions. Abrupt

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury
or death.

The unit cabinet must have an uninterrupted, unbroken
electrical ground. This ground may consist of an electrical
wire connected to the unit ground screw in the control
compartment, or conduitapprovedfor electrical ground when
installed in accordance with NEC,NFPA 70 National Fire
Protection Association (latest edition) (in Canada, Canadian
Electrical Code CSA C22.1) and local electrical codes.

!

WARNING

change in duct size adversely affects air performance.

Step 6 — Provide for Condensate Disposal

NOTE: Ensure that condensate--water disposal methods comply

with local codes, restrictions, and practices.

The 607C units dispose of condensate through a 3/4 in. NPT
female fitting that exits on the compressor end of the unit.
Condensate water can be drained directly onto the roof in rooftop
installations (where permitted) or onto a gravel apron in ground
level installations. Install a field--supplied condensate trap at end of
condensate connection to ensure proper drainage. Make sure that
the outlet of the trap is at least 1 in. (25 mm) lower than the
drain--pan condensate connection to prevent the pan from
overflowing. Prime the trap with water. When using a gravel apron,
make sure it slopes away from the unit.

High--Voltage Connections

The unit must have a separate electrical service with a
field--supplied, waterproof disconnect switch mounted at, or within
sight from the unit. Refer to the unit rating plate, NEC and local
codes for maximum fuse/circuit breaker size and minimum circuit
amps (ampacity) for wire sizing.

The field--supplied disconnect may be mounted on the unit over
the high--voltage inlet hole when the standard power and
low--voltage entry points are used. See Fig. 2 and 3 for acceptable
location. Remove high voltage knockout.

See unit wiring label (Fig. 12--14) and Fig. 8 for reference when
making high voltage connections. Proceed as follows to complete
the high--voltage connections to the unit.

8

HIGH VOLTAGE
POWER LEADS
(SEE UNIT WIRING
LABEL

)

CONTROL BOX

LOW-VOLTAGE
POWER LEADS
(SEE UNIT
WIRING LABEL)

)

3-PHASE SHOWN
1-PHASE USES
TWO POWER
LEADS

SPLICE BOX

EQUIP GR

FIELD-SUPPLIED
FUSED DISCONNECT

WHT(W1)

VIO (W2)

YEL(Y)

GRN(G)

RED(R)

BRN(C)

ORN(O)

W1

W2

Y

G

R

C

O

POWER
SUPPLY

THERMOSTAT
(TYPICAL)

A08186

Fig. 8 -- High-- and Control--Voltage Connections

Single phase units:

1. Run the high--voltage (L1, L2) and ground lead into the
control box.

2. Connect ground lead to chassis ground connection.

3. Locate the black and yellow wires connected to the line side
of the contactor.

4. Connect field L1 to black wire on connection 11 of the
compressor contactor.

5.ConnectfieldwireL2toyellowwireonconnection23of
the compressor contactor.

Three--phase units:

1. Run the high--voltage (L1, L2, L3) and ground lead into the
control box.

2. Connect ground lead to chassis ground connection.

3. Locate the black and yellow wires connected to the line side
of the contactor.

4. Connect field L1 to black wire on connection 11 of the
compressor contactor.

5.ConnectfieldwireL3toyellowwireonconnection13of
the compressor contactor.

6. Connect field wire L2 to blue wire from compressor.

Special Procedures for 208--V Operation

!

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal
injury or death.

Before installing or servicing system, always turn off main
power to system. Tag the disconnect switch with a suitable
warning label. With disconnect switch open, move black
wire from transformer (3/16 in.) terminal marked 230 to
terminal marked 208. This retaps transformer to primary
voltage of 208 vac.

WARNING

Control Voltage Connections

NOTE: Do not use any type of power--stealing thermostat. Unit

control problems may result.

Use no. 18 American Wire Gage (AWG) color--coded, insulated
(35°C minimum) wires to make the control voltage connections
between the thermostat and the unit. If the thermostat is located
more than 100 ft (30.5 m) from the unit (as measured along the
control voltage wires), use no. 16 AWG color--coded, insulated
(35° C minimum) wires.

Standard Connections

Locate the seven low voltage thermostat leads in 24 volt splice
box. See Fig. 8 for connection diagram. Run the low--voltage leads
from the thermostat, through the control wiring inlet hole grommet
(Fig. 2 and 3), and into the low--voltage splice box. Provide a drip
loop before running wires through panel. Secure and strain relief
all wires so that they do not interfere with operation of unit.

If an accessory electric heater is installed, low voltage leads from
heater must be connected to factory supplied control leads from
Indoor Fan Board P4 connector. Factory wires are provided for
electric heat staging W1 and W2 (W2 and W3 on IFB). If room
thermostat has only one stage of supplemental heat, connect white
and violet wires shown in Fig. 8 to second stage heat field wire.

Some electric heaters have four control wires (plus common wire).
Consult unit wiring diagram and electric heater wiring diagram for
additional details.

Transformer Protection

The transformer is of the energy--limiting type. It is set to withstand
a 30--second overload or shorted secondary condition. If an
overload or short is present, correct overload condition and check
for blower fuse on control board. Replace fuse as required with
correct size and rating.

Accessory Electric Heaters Installation

Electric heaters may be installed with the 607C units per
instructions supplied with electric heater package. See unit rating
plate for factory--approved electric heater kits.

607C Sequence of Operation

a. CONTINUOUS FAN

(1.) Thermostat closes circuit R to G energizing the

blower motor for continuous fan.

b. COOLING MODE

(1.) If indoor temperature is above temperature set

point, thermostat closes circuits R to G, R to Y and
R to O--The unit delivers cooling airflow.

c. ELECTRIC HEATING MODE

(1.) Thermostat closes circuit R to W/W1, or W2 and R
to G. There are no on or off delays.

d. HEAT PUMP HEATING MODE

(1.) Thermostat closes circuits R to G and R to Y. The

compressor, indoor and outdoor fans are energized.

e. HEAT PUMP HEATING WITH AUXILIARY

ELECTRIC HEAT

(1.) Thermostat closes circuits R to G, R to Y and R to

W/W1 or W2. The compressor, indoor and outdoor
fans are energized, as well as the electric heat
relays.

f. DEFROST MODE

The defrost mode is automatically energized by the
defrost board during heating mode. The defrost board
energizes “O” (reversing valve) and “W2” (electric
heat). It also de-- energizes the outdoor fan. When defrost
is complete, unit will return to heating mode. If room
thermostat is satisfied during defrost, unit will shut
down and restart in defrost on next call for heat.

607C

9

Table 1 – Physical Data -- Unit 607C

UNIT SIZE 607C024 607C030 607C036 607C042 607C048 607C060

NOMINAL CAPACITY (ton) 2 2.5 3 3.5 4 5

OPERATING WEIGHT} (lb)

COMPRESSOR QUANTITY 1

Refrigerant (R ---410A) Quantity (lb)

Diameter Motor HP (RPM)

Nominal Cooling Airflow (CFM)

607C

HIGH --- PRESSURE SWITCH (psig)

L O S S --- O F --- C H A R G E / L O W --- P R E S S U R E

RETURN--- AIR FILTERS*{

*Required filter sizes shown are based on the larger of the ARI (Air conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of
300 ft/minute for throwaway type or 450 ft/minute for high --- capacity type. Air filter pressure drop for non --- standard filters must not exceed 0.08 IN. W.C.

{ If using accessory filter rack refer to the filter rack installation instructions for correct filter size and quantity.
} For 460 volt units, add 14 lb (6.4 kg) to the weight.

TYPE SCROLL COMPRESSOR

REFRIGERANT R--- 410A

Quantity (kg)

METERING DEVICE ID TXV

ORIFICE OD (in.)

OUTDOOR COIL

Rows... Fins/in.

face area (sq. ft.)

OUTDOOR FAN

Nominal Airflow (CFM)

INDOOR COIL

Rows... Fins/in.

face area (sq. ft.)

INDOOR BLOWER

Size (in.)

Motor (HP)

Cutout

Reset (Auto)

SWITCH

(Liquid Line) (psig)

Cutout

Reset (Auto)

throwaway (in.)

(kg)

(mm)

(mm)

(mm)

306
139

9.5

4.3

0.032 (2)
.81

2...21

13.6

2500

22

1/8 (825)

3...17

3.7

800

10x10

254x254

1/2

20x20x1

508x508x25

316
143

10.5

4.8

0.038 (2)
.97

2...21

15.4

2600

22

1/8 (825)

3...17

3.7

1000

10x10

254x254

1/2

20x24x1

508x610x25

371
168

9.0

4.1

0.040 (2)

1.02

2...21

13.6

3000

22

1/4 (1100)

3...17

4.7

1200

11x10

279x254

3/4

412
187

14.0

6.4

0.038 (Left OD C oil)

0.040 (Right OD Coil)
.97/102

2...21

19.4
3500

22

1/8 (825)

3...17

4.7

1400

11x10

279x254

3/4

650±15
420±25

20±5

45±10

20±5

45±10

24x30x1

610x762x25

432
196

17.0

7.7

0.040 (2)

1.02

2...21

19.4

3500

22

1/4 (1100)

3...17

5.7

1600

11x10

279x254

1.0

610x914x25

24x36x1

Table 2 – Minimum Airflow for Reliable Electric Heater Operation (CFM)

SIZE 607C024 607C030 607C036 607C042 607C048 607C060

AIRFLOW (CFM) 800 1025 1250 1400 1710 1800

462
210

16.0

7.3

0.049 (2)

1.24

2...21

23.3

3800

22

1/3 (1100)

4...17

5.7

1750

11x10

279x254

1.0

TOP COVER

RETURN
AIR

INDOOR
THERMOSTAT

FROM
POWER
SOURCE

DISCONNECT
PER NEC*

*NEC - NATIONAL ELECTRICAL CODE

Fig. 9 -- Typical Installation (Shown with optional louvers)

C00063

10

Duct Covers

Fig. 10 -- 607C with Duct Covers On (Shown with optional louvers)

607C

C00092

1” (25 mm) MIN

.

Fig. 11 -- Condensate Trap

TRAP
OUTLET

2” (51 mm) MIN.

A08001

11

607C

A08024

Fig. 12 -- Wiring Schematics 208/230--1--60

12

607C

A08025

Fig. 13 -- Wiring Schematics -- 208/230--3--60

13

607C

A08026

Fig. 14 -- Wiring Diagram 460--3--60

14

PRE--START--UP

!

FIRE,EXPLOSION, ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury,
death or property damage.

1. Follow recognized safety practices and wear protective
goggles when checking or servicing refrigerant system.

2. Relieve and recover all refrigerant from system before
touching or disturbing compressor plug if refrigerant
leak is suspected around compressor terminals.

3. Do not remove compressor plug until all electrical
sources are disconnected and tagged.

4. Never attempt to repair soldered connection while
refrigerant system is under pressure.

5. Do not use torch to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective goggles and
proceed as follows:

a. Shut off electrical power to unit and install lockout

tag.

b. Relieve and reclaim all refrigerant from system

using both high-- and low--pressure ports.

c. Cut component connecting tubing with tubing

cutter and remove component from unit.

d. Carefully unsweat remaining tubing stubs when

necessary. Oil can ignite when exposed to torch
flame.

Use the Start--Up Checklist supplied at the end of this book and
proceed as follows to inspect and prepare the unit for initial
start--up:

1. Remove all access panels.

2. Read and follow instructions on all DANGER, WARNING,
CAUTION, and INFORMATION labels attached to, or
shipped with, unit.

3. Make the following inspections:

a. Inspect for shipping and handling damages such as

broken lines, loose parts, disconnected wires, etc.

b. Inspect for oil at all refrigerant tubing connections and

on unit base. Detecting oil generally indicates a
refrigerant leak. Leak--test all refrigerant tubing
connections using electronic leak detector, or
liquid--soap solution. If a refrigerant leak is detected, see
following Check for Refrigerant Leaks section.

c. Inspect all field and factory--wiring connections. Be sure

that connections are completed and tight. Ensure wires
do not touch refrigerant tubing or sharp sheet metal
edges.

d. Inspect coil fins. If damaged during shipping and

handling, carefully straighten fins with a fin comb.

4. Verify the following conditions:

a. Make sure that outdoor-- fan blade is correctly positioned

in fan orifice.

b. Make sure that air filter(s) is in place.

c. Make sure that condensate drain pan and trap are filled

with water to ensure proper drainage.

d. Make sure that all tools and miscellaneous loose parts

have been removed.

5. Each unit system has 2 Schrader--type ports, one low--side
Schrader fitting located on the suction line, and one
high--side Schrader fitting located on the compressor
discharge line. Be sure that caps on the ports are tight.

WARNING

START--UP

Checking Cooling and Heating Control Operation

Start and check the unit for proper control operation as follows:

(1.) Place room thermostat SYSTEM switch or MODE

control in OFF position. Observe that blower
motor starts when FAN mode is placed in FAN ON
position and shuts down when FAN MODE switch
is placed in AUTO position.

(2.) Thermostat:

When the room temperature rises to a point that is
slightly above the cooling control setting of the
thermostat, the thermostat completes the circuit
between thermostat terminal R to terminals Y, O
and G.These completed circuits through the
thermostat connect contactor coil (C) (through unit
wire Y) and Indoor Fan board (through unit wire
G) across the 24--v. secondary of transformer
(TRAN).

(3.) Place system switch or MODE control in HEAT

position. Set control above room temperature.
Observe that compressor, outdoor fan, and indoor
blower motors start. Observe that heating cycle
shuts down when control setting is satisfied.

(4.) When using an automatic changeover room

thermostat place both SYSTEM or MODE control
and FAN mode switches in AUTO positions.
Observe that unit operates in Cooling mode when
temperature control is set to “call for Cooling”
(below room temperature), and unit operates in
Heating mode when temperature control is set to

“call for Heating” (above room temperature).
NOTE: Once the compressor has started and then has stopped, it
should not be started again until 5 minutes have elapsed. The
defrost board has a built--in 5 minute delay between cycles. The 5
minute compressor delay also applies to heat pump heating mode.

Step 1 — Check for Refrigerant Leaks

Proceed as follows to locate and repair a refrigerant leak and to
charge the unit:

1. Locate leak and make sure that refrigerant system pressure
has been relieved and reclaimed from both high-- and
low--pressure ports.

2. Repair leak following Refrigerant Service procedures.

NOTE: Install a bi--flow filter drier whenever the system has been
opened for repair.

3. Add a small charge of R--410A refrigerant vapor to system
and leak--test unit.

4. Recover refrigerant from refrigerant system and evacuate to
500 microns if no additional leaks are not found.

5. Charge unit with Puron (R-- 410A) refrigerant, using an
electronic scale. Refer to unit rating plate for required
charge.

Step 2 — Start--Up Adjustments

Complete the required procedures given in the Pre--Start--Up
section before starting the unit. Do not jumper any safety devices
when operating the unit. Do not operate the unit in Cooling mode
when the outdoor temperature is below 40_F(4_C) (unless
accessory low--ambient kit is installed).

IMPORTANT: Three--phase, scroll compressors are direction
oriented. Unit must be checked to ensure proper compressor
3--phase power lead orientation. If not corrected within 5 minutes,
the internal protector will shut off the compressor. The 3--phase
power leads to the unit must be reversed to correct rotation. When
turning backwards, the difference between compressor suction and
discharge pressures may be near zero.

607C

15

Checking and Adjusting Refrigerant Charge

The refrigerant system is fully charged with Puron (R-- 410A)
refrigerant and is tested and factory sealed.

NOTE: Adjustment of the refrigerant charge is not required
unless the unit is suspected of not having the proper Puron
(R--410A) charge.

A subcooling charging chart is attached to the outside of the
service access panel. The chart includes the required liquid line
temperature at given discharge line pressures and outdoor ambient
temperatures.

An accurate thermocouple-- or thermistor--type thermometer, and a
gauge manifold are required when using the subcooling charging
method for evaluating the unit charge. Do not use mercury or small
dial--type thermometers because they are not adequate for this type
of measurement.

NOTE: Allow system to operate for a minimum of 15 minutes
before checking or adjusting refrigerant charge.

IMPORTANT: When evaluating the refrigerant charge, an

607C

indicated adjustment to the specified factory charge must always be
very minimal. If a substantial adjustment is indicated, an abnormal
condition exists somewhere in the cooling system, such as
insufficient airflow across either coil or both coils.

Proceed as follows:

1. Remove caps from low-- and high--pressure service fittings.

2. Using hoses with valve core depressors, attach low-- and
high--pressure gauge hoses to low-- and high--pressure
service fittings, respectively.

3. Start unit and let run until system pressures stabilize.

4. Measure and record the following:

a. Outdoor ambient--air temperature (°F[°C] db).

b. Liquid line temperature (°F[°C]) at TXV.

c. Discharge (high--side) pressure (psig).

d. Suction (low--side) pressure (psig) (for reference only).

5. Using Cooling Charging Charts compare outdoor--air
temperature (°F[°C] db) with the discharge line pressure
(psig) to determine desired system operating liquid line
temperature (See Fig. 19).

6. Compare actual liquid line temperature with desired liquid
line temperature. Using a tolerance of ±2°F(±1.1°C), add
refrigerant if actual temperature is more than 2°F(1.1°C)
higher than proper liquid line temperature, or remove
refrigerant if actual temperature is more than 2°F(1.1°C)
lower than required liquid line temperature.

NOTE: If the problem causing the inaccurate readings is a
refrigerant leak, refer to Check for Refrigerant Leaks section.

Indoor Airflow and Airflow Adjustments

All 607C blower motors are factory wired for nominal cooling
airflow operation at minimum external static pressure. See Table 1.

NOTE: Be sure that all supply-- and return-- air grilles are open,
free from obstructions, and adjusted properly.

Table 3 – Color Coding for Indoor Fan Motor Leads

Black = High Speed

Orange = Med --High Speed

Red = Med Speed

Pink = Med--Low Speed

Blue = Low Speed

!

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal
injury or death.

Disconnect electrical power to the unit and install lockout
tag before changing blower speed.

The fan speed of the unit is connected to the “HIGH” terminal on
the interface fan board (IFB) (See Fig. 12--14 and 17). The unit is
factory--shipped with a fan speed as noted in Table 4. There are 4
additional speed tap wires available for use (For color coding on
the indoor fan motor leads, see Table 4). The additional 4 speed tap
wires are shipped loose with vinyl caps and are located in the
control box, near the IFB.

To change the fan speed, remove the vinyl cap off of the desired
speed tap wire (Refer to Table 3 for color coding). Remove the
current speed tap wire from the “HIGH” terminal on the interface
fan board (IFB) (Fig. 17) and place vinyl cap over the connector on
the wire. Connect the desired speed tap wire to the “HIGH”
terminal on the IFB. For optimum performance, add the wet coil
pressure drop in Table 5 to the system static to determine the
correct cooling airflow speed in Table 4 that will deliver the
nominal cooling airflow as listed in Table 1 for each size.

NOTE: For cooling operation, the recommended airflow is 350 to
450 CFM for each 12,000 Btuh of rated cooling capacity.

NOTE: If accessory electric heat is installed in the unit, the dry
airflow must meet or exceed the minimum airflow specified in
Table 2 for the specific size. Use Table 4 to determine dry airflow
for a known external static pressure. Electric heat fan speed is the
same as cooling fan speed.

Continuous Fan Operation

The continuous fan operates at the same fan speed as cooling
operation.

ACCUMULATOR

LEGEND

HPS – High Pressure Switch
LCS – Loss of Charge Switch

Accurater
Arrow indicates direction of flo w

HP S

COMPRESSOR

®

Metering De vice

Fig. 15 -- Typical Heat Pump Operation, Cooling Mode

OUTDOOR COIL

16

Bypass

Position

TXV in Metering

Position

LCS

INDOOR COIL

C03011

Fig. 16 -- Interface Fan Board (IFB)

607C

A07794

OUTDOOR COIL

ACCUMULATOR

LEGEND

HPS – High Pressure Switch
LCS – Loss of Charge Switch

HP S

COMPRESSOR

®

Metering De vice

Accurater

Arrow indicates direction of flo w

Fig. 17 -- Typical Heat Pump Operation, Heating Mode

Step 3 — Defrost Control

Quiet Shift

Quiet Shift is a field--selectable defrost mode, which will eliminate
occasional noise that could be heard at the start of defrost cycle and
restarting of heating cycle. It is selected by placing DIP switch 3
(on defrost board) in ON position.

When Quiet Shift switch is placed in ON position, and a defrost is
initiated, the following sequence of operation will occur. Reversing
valve will energize, outdoor fan will turn off, compressor will turn
off for 30 sec and then turn back on to complete defrost. At the
start of heating after conclusion of defrost reversing valve will
de--energize, compressor will turn off for another 30 sec, and the
outdoor fan will stay off for 40 sec, before starting in the Heating
mode.

Defrost

The defrost control is a time/temperature control which includes a
field--selectable time period (DIP switch 1 and 2 on the board)
between defrost cycles of 30, 60, 90, or 120 minutes (factory set at

INDOOR COIL

TXV in Bypass

Position

LCS

Metering
Position

C03012

60 minutes). To initiate a forced defrost, two options are available
depending on the status of the defrost thermostat.

If defrost thermostat is closed, speed--up pins (J1) must be shorted
by placing a flat head screw driver in between for 5 sec and
releasing, to observe a complete defrost cycle. When the Quiet
Shift switch is selected, compressor will be turned off for two 30
sec intervals during this complete defrost cycle, as explained
previously. When Quiet Shift switch is in factory default OFF
position, a normal and complete defrost cycle will be observed.

If defrost thermostat is in open position, and speedup pins are
shorted (with a flat head screw driver) for 5 sec and released, a
short defrost cycle will be observed (actual length is dependent
upon the selected Quiet Shift position). When Quiet Shift switch is
in ON position, the length of defrost is 1 minute (30 sec
compressor off period followed by 30 sec of defrost with
compressor operation). On return to heating operation, compressor
will again turn off for an additional 30 sec and the outdoor fan for
40 sec. When the Quiet Shift is in OFF position, only a brief 30
sec. cycle will be observed.

17

NOTE: Unit will remain in defrost until defrost thermostat
reopens at approximately 65_F(18_C) coil temperature at liquid
line or remainder of defrost cycle time.

MAINTENANCE

To ensure continuing high performance, and to minimize the
possibility of premature equipment failure, periodic maintenance
must be performed on this equipment. This heat pump unit should
be inspected at least once each year by a qualified service person.
To troubleshoot unit, refer to Table 8.

NOTE: TO EQUIPMENT OWNER: Consult your local dealer
about the availability of a maintenance contract.

each cooling season and twice during the heating season, or
whenever the filter becomes clogged with dust and lint.

Indoor Blower and Motor

NOTE: All motors are pre--lubricated. Do not attempt to lubricate

these motors.

NOTE: 460 volt units have a stepdown autotransformer that
supplies approximately 230 volts to a nominal 230 volt indoor
blower motor.

For longer life, operating economy, and continuing efficiency,
clean accumulated dirt and grease from the blower wheel and
motor annually.

!

PERSONAL INJURY AND UNIT DAMAGE HAZARD

Failure to follow this warning could result in personal injury
or death and unit component damage.

The ability to properly perform maintenance on this

607C

equipment requires certain expertise, mechanical skills, tools
and equipment. If you do not possess these, do not attempt to
perform any maintenance on thisequipment,other than those
procedures recommended in the Owner’s Manual.

!

ELECTRICAL SHOCK HAZARD

Failure to follow these warnings could result in personal
injury or death:

1. Turn off electrical power to the unit and install a lockout
tag before performing any maintenance or service on this
unit.

2. Use extreme caution when removing panels and parts.

3. Never place anything combustible either on or in contact
with the unit.

UNIT OPERATION HAZARD

Failure to follow this caution may result in improper
operation.

Errors made when reconnecting wires may cause improper
and dangerous operation. Label all wires prior to
disconnecting when servicing.

The minimum maintenance requirements for this equipment are as
follows:

1. Inspect air filter(s) each month. Clean or replace when
necessary.

2. Inspect indoor coil, drain pan, and condensate drain each
cooling season for cleanliness. Clean when necessary.

3. Inspect blower motor and wheel for cleanliness each
cooling season. Clean when necessary.

4. Check electrical connections for tightness and controls for
proper operation each cooling season. Service when
necessary.

WARNING

WARNING

!

CAUTION

Step 1 — Air Filter

IMPORTANT: Never operate the unit without a suitable air filter

in the return--air duct system. Always replace the filter with the
same dimensional size and type as originally installed. See Table 1
for recommended filter sizes.

Inspect air filter(s) at least once each month and replace
(throwaway--type) or clean (cleanable--type) at least twice during

!

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury
or death.

Disconnect and tag electrical power to the unit before cleaning
the blower motor and wheel.

To clean the blower motor and wheel:

1. Remove and disassemble blower assembly as follows:

a. Remove unit access panel.

b. Disconnect 5 pin plug and 4 pin plug from indoor

blower motor.

c. On all units remove blower assembly from unit.

Remove screws securing blower to blower partition and
slide assembly out. Be careful not to tear insulation in
blower compartment.

d. Ensure proper reassembly by marking blower wheel and

motor in relation to blower housing before disassembly.

e. Loosen setscrew(s) that secures wheel to motor shaft,

remove screws that secure motor mount brackets to
housing, and slide motor and motor mount out of
housing.

2. Remove and clean blower wheel as follows:

a. Ensure proper reassembly by marking wheel orientation.

b. Lift wheel from housing. When handling and/or

cleaning blower wheel, be sure not to disturb balance
weights (clips) on blower wheel vanes.

c. Remove caked--on dirt from wheel and housing with a

brush. Remove lint and/or dirt accumulations from
wheel and housing with vacuum cleaner, using soft
brush attachment. Remove grease and oil with mild
solvent.

d. Reassemble wheel into housing.

e. Reassemble motor into housing. Be sure setscrews are

tightened on motor shaft flats and not on round part of
shaft.

f. Connect 5 pin plug and 4 pin plug to indoor blower

motor.

g. Reinstall unit access panel.

3. Restore electrical power to unit. Start unit and check for
proper blower rotation and motor speeds during cooling
cycles.

WARNING

18

Table 4 – Dry Coil Air Delivery* -- Horizontal and Downflow Discharge -- Unit 607C024--060

Unit

607C024

607C030

607C036

607C042

607C048

607C060

* Air delivery values a r e without air filter and a re for dry coil (See 607C Wet Coil Pressure Drop Table).

1

Factory ---shipped cooling/heat pump heating speed

NOTE: Deduct field ---supplied air filter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting.

Motor
Speed

Low Blue CFM 741 638 547 415 --- --- --- --- ---

Med-Low

Medium Red CFM 973 887 823 733 665 538 451 --- ---

Med-High Orange CFM 1140 1064 996 915 840 758 687 564 480

High Black CFM 1202 1140 1082 1015 961 881 810 732 631

Low Blue CFM 741 638 547 415 --- --- --- --- ---

Med-Low Pink CFM 898 820 738 662 536 --- --- --- ---

Medium Red CFM 973 887 823 733 665 538 451 --- ---

Med-High1Orange CFM 1140 1064 996 915 840 758 687 564 480

1

High

Low Blue CFM 1295 1234 1182 1126 1075 1016 955 898 857

Med-Low

Medium Red CFM 1505 1452 1413 1358 1323 1282 1234 1169 1130

Med-High Orange CFM 1545 1492 1449 1411 1362 1313 1278 1231 1188

High Black CFM 1705 1643 1607 1568 1518 1483 1448 1404 1360

Low Blue CFM 1295 1234 1182 1126 1075 1016 955 898 857

Med-Low Pink CFM 1345 1282 1235 1194 1140 1095 1027 974 921

Medium Red CFM 1505 1452 1413 1358 1323 1282 1234 1169 1130

Med-High1Orange CFM 1545 1492 1449 1411 1362 1313 1278 1231 1188

High Black CFM 1705 1643 1607 1568 1518 1483 1448 1404 1360

Low Blue CFM 1445 1389 1341 1281 1236 1189 1139 1072 1027

Med-Low

Medium Red CFM 1962 1915 1880 1843 1794 1753 1711 1675 1628

Med-High Orange CFM 2131 2088 2065 2013 1982 1941 1888 1860 1785

High Black CFM 2461 2409 2339 2286 2192 2140 2062 1968 1874

Low Blue CFM 1448 1321 1282 1235 1192 1145 1101 1057 1011
Med-Low Pink CFM 1722 1675 1614 1543 1499 1442 1408 1356 1308
Medium

Med-High Orange CFM 2055 2008 1958 1927 1900 1768 1685 1581 1458

High Black CFM 2292 2238 2158 2049 1935 1840 1732 1635 1513

Wire

Color

1

Pink CFM 898 820 738 662 536 --- --- --- ---

Black CFM 1202 1140 1082 1015 961 881 810 732 631

1

Pink CFM 1345 1282 1235 1194 1140 1095 1027 974 921

1

Pink CFM 1678 1635 1602 1558 1513 1474 1438 1404 1349

1

Red CFM 1887 1847 1783 1726 1677 1625 1578 1527 1432

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

External Static Pressure (IN. W.C.)

Table 5 – 607C Wet Coil Pressure Drop (in. W.C.)

UNIT SIZE

024 0.06 0.07 0.08 0.09 0.1
030 0.12 0.15 0.19 0.23 0.27
036 0.07 0.11 0.18 0.26 0.35
042 0.04 0.07 0.1 0.15 0.21
048 0.11 0.14 0.17 0.22 0.28
060 0.1 0.17 0.23 0.31 0.36

500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

STANDARD CFM (S.C.F .M)

Table 6 – Filter Pressure Drop Table (in. W.C.)

FILTER SIZE

in. (mm)

20X20X1

(508X508X25)

20X24X1

(508X610x25)

24X30X1

(610X762x25)

24X36X1

(610X914X25)

500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300

0.05 0.07 0.08 0.1 0.12 0.13 0.14 0.15 — — — — — — — — — — —

— — — .09 .10 .11 .1 3 .14 .15 .16 — — — — — — — — —

— — — 0.04 0.05 0.06 0.07 0.07 0.08 0.09 0.1 — — — — — — — —

— — — — — — — 0.06 0.07 0.07 0.08 0.09 0.09 0.10 0.11 0.12 0.13 0.14 0.14

CFM

607C

5kw 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.04 0.06 0.07

7.5 kw 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.03 0.05 0.07 0.08 0.09
10 kw 0.00 0.00 0.00 0.00 0.00 0.02 0.04 0.06 0.07 0.09 0.10 0.11
15 kw 0.00 0.00 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18
20 kw 0.00 0.00 0.02 0.04 0.06 0.08 0.09 0.11 0.13 0.15 0.17 0.19

5kw 0.00 0.00 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12

7.5 kw 0.00 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13
10 kw 0.00 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13
15 kw 0.00 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15
20 kw 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16

500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600

1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500

Table 7 – Electric Heat Pressure Drop Table

Small Cabinet: 024--036 cfm

Electric Heat Pressure Drop Table (in. W.C.)

Large Cabinet 042--060 cfm

19

Step 2 — Outdoor Coil, Indoor Coil, and
Condensate Drain Pan

Inspect the condenser coil, evaporator coil, and condensate drain
pan at least once each year.

The coils are easily cleaned when dry; therefore, inspect and clean
the coils either before or after each cooling season. Remove all
obstructions, including weeds and shrubs, that interfere with the
airflow through the condenser coil.

Straighten bent fins with a fin comb. If coated with dirt or lint,
clean the coils with a vacuum cleaner, using the soft brush
attachment. Be careful not to bend the fins. If coated with oil or
grease, clean the coils with a mild detergent--and--water solution.

607C

Rinse coils with clear water, using a garden hose. Be careful not to
splash water on motors, insulation, wiring, or air filter(s). For best
results, spray condenser coil fins from inside to outside the unit. On
units with an outer and inner condenser coil, be sure to clean
between the coils. Be sure to flush all dirt and debris from the unit
base.

Inspect the drain pan and condensate drain line when inspecting
the coils. Clean the drain pan and condensate drain by removing all
foreign matter from the pan. Flush the pan and drain trough with
clear water. Do not splash water on the insulation, motor, wiring, or
air filter(s). If the drain trough is restricted, clear it with a plumbers
snake or similar probe device.

A08076

Fig. 18 -- Cooling Charging Table--Subcooling

20

O R W

2

Y C

T2 C C O

OF1

OF2

DFT

T1 Y

P1

SPEEDUP

J1

P3

INTERVAL TIMER

90

30

120

60

30

60

DFT

QUIET

SHIFT

ON

Quiet
Shift

Fig. 19 -- Defrost Control

OFF

Speedup
Pins

Step 3 — Outdoor Fan

Keep the condenser fan free from all obstructions to ensure
proper cooling operation. Never place articles on top of the
unit. Damage to unit may result.

1. Remove 6 screws holding outdoor grille and motor to top
cover.

2. Turn motor/grille assembly upside down on top cover to
expose fan blade.

3. Inspect the fan blades for cracks or bends.

4. If fan needs to be removed, loosen setscrew and slide fan off
motor shaft.

5. When replacing fan blade, position blade back to same posi­tion as before.

6. Ensure that setscrew engages the flat area on the motor shaft
when tightening.

7. Replace grille.

Step 4 — Electrical Controls and Wiring

Inspect and check the electrical controls and wiring annually. Be
sure to turn off the electrical power to the unit.

Remove access panel to locate all the electrical controls and wiring.
Check all electrical connections for tightness. Tighten all screw
connections. If any discolored or burned connections are noticed,
disassemble the connection, clean all the parts, restrip the wire end
and reassemble the connection properly and securely.

After inspecting the electrical controls and wiring, replace all the
panels. Start the unit, and observe at least one complete cooling

607C

Defrost interval
DIP switches

A08020

cycle to ensure proper operation. If discrepancies are observed in
operating cycle, or if a suspected malfunction has occurred, check
each electrical component with the proper electrical
instrumentation. Refer to the unit wiring label when making these
checkouts.

Step 5 — Refrigerant Circuit

Inspect all refrigerant tubing connections and the unit base for oil
accumulation annually. Detecting oil generally indicates a
refrigerant leak.

If oil is detected or if low performance is suspected, leak--test all
refrigerant tubing using an electronic leak detector, or liquid--soap
solution. If a refrigerant leak is detected, refer to Check for
Refrigerant Leaks section.

If no refrigerant leaks are found and low performance is suspected,
refer to Checking and Adjusting Refrigerant Charge section.

Step 6 — Indoor Airflow

The heating and/or cooling airflow does not require checking
unless improper performance is suspected. If a problem exists, be
sure that all supply--air and return--air grilles are open and free
from obstructions, and that the air filter is clean. When necessary,
refer to Indoor Airflow and Airflow Adjustments section to check
the system airflow.

Step 7 — Metering Devices--TXV & Piston

This unit uses 2 types of metering devices. The outdoor metering
device is a fixed orifice and is contained in the brass hex--body in
each liquid line feeding the outdoor coils. The indoor metering
device is a TXV type device.

21

607C

Fig. 20 -- Refrigerant Circuit

Step 8 — Pressure Switches

Pressure switches are protective devices wired into control circuit
(low voltage). They shut off compressor if abnormally high or low
pressures are present in the refrigeration circuit. These pressure
switches are specifically designed to operate with Puron (R--410A)
systems. R--22 pressure switches must not be used as replacements
for the Puron (R--410A) system.

Step 9 — Loss of Charge Switch

This switch is located on the liquid line and protects against low
suction pressures caused by such events as loss of charge, low
airflow across indoor coil, dirty filters, etc. It opens on a pressure
drop at about 20 psig. If system pressure is above this, switch
should be closed. To check switch:

1. Turn off all power to unit.

2. Disconnect leads on switch.

3. Apply ohm meter leads across switch. You should have
continuity on a good switch.

NOTE: Because these switches are attached to refrigeration
system under pressure, it is not advisable to remove this device for
troubleshooting unless you are reasonably certain that a problem
exists. If switch must be removed, remove and recover all system
charge so that pressure gauges read 0 psi. Never open system
without breaking vacuum with dry nitrogen.

Step 10 — High-- Pressure Switch

The high--pressure switch is located in the discharge line and
protects against excessive condenser coil pressure. It opens at 650
psig.

High pressure may be caused by a dirty outdoor coil, failed fan
motor, or outdoor air recirculation.

To check switch:

1. Turn off all power to unit.

2. Disconnect leads on switch.

3. Apply ohm meter leads across switch. You should have
continuity on a good switch.

Step 11 — Copeland Scroll Compressor (Puron
Refrigerant)

The compressor used in this product is specifically designed to
operate with Puron (R--410A) refrigerant and cannot be
interchanged.

C99097

!

EXPLOSION HAZARD

Failure to follow thiswarning could result in personal injury,
death or property damage.

Wear safety glasses and gloves when handling refrigerants.
Keep torches and other ignition sources away from refrigerant
and oils.

The scroll compressor pumps refrigerant throughout the system by
the interaction of a stationary and an orbiting scroll. The scroll
compressor has no dynamic suction or discharge valves, and it is
more tolerant of stresses caused by debris, liquid slugging, and
flooded starts. The compressor is equipped with an internal
pressure relief port. The pressure relief port is a safety device,
designed to protect against extreme high pressure. The relief port
has an operating range between 550 and 625 psi differential
pressure.

The Copeland scroll compressor uses Mobil 3MAF POE oil.
Copeland Ultra 22 CC should be used if additional oil is needed in
the field. Mobil Artic EAL22CC or ICI Emkarate RL22 or 32CF
oil may be used to recharge these compressors if Ultra 22 is not
available.

WARNING

Step 12 — Refrigerant System

This step covers the refrigerant system of the 607C, including the
compressor oil needed, servicing systems on roofs containing
synthetic materials, the filter drier and refrigerant charging.

Refrigerant

!

PROPERTY HAZARD, PERSONAL INJURY OR
ENVIRONMENTAL HAZARD

Failureto follow this warning could resultin property damage
or personal injury or death.
This system uses Puron (R--410A) refrigerant which has
higher operating pressures than R--22 and other refrigerants.
No other refrigerant may be used in this system. Gauge set,
hoses,and recoverysystemmustbe designedto handlePuron.
If you are unsure consult the equipment manufacturer.

Compressor Oil

The compressor in this system uses a polyolester (POE) oil, Mobil
3MAF POE. This oil is extremely hygroscopic, meaning it absorbs
water readily. POE oils can absorb 15 times as much water as other
oils designed for HCFC and CFC refrigerants. Take all necessary
precautions to avoid exposure of the oil to the atmosphere.

Servicing Systems on Roofs with Synthetic Materials

POE (polyolester) compressor lubricants are known to cause long
term damage to some synthetic roofing materials. Exposure, even if
immediately cleaned up, may cause embrittlement (leading to
cracking) to occur in one year or more. When performing any
service that may risk exposure of compressor oil to the roof, take
appropriate precautions to protect roofing. Procedures which risk
oil leakage include, but are not limited to, compressor replacement,
repairing refrigerant leaks, replacing refrigerant components such
as filter drier, pressure switch, metering device, coil, accumulator,
or reversing valve.

Synthetic Roof Precautionary Procedure

1. Cover extended roof working area with an impermeable
polyethylene (plastic) drip cloth or tarp. Cover an
approximate 10x10 ft (3x3 m) area.

WARNING

22

2. Cover area in front of the unit service panel with a terry
cloth shop towel to absorb lubricant spills and prevent
run--offs, and protect drop cloth from tears caused by tools
or components.

3. Place terry cloth shop towel inside unit immediately under
component(s) to be serviced and prevent lubricant run--offs
through the louvered openings in the unit base.

4. Perform required service.

5. Remove and dispose of any oil contaminated material per
local codes.

Liquid Line Filter Drier

The biflow filter drier is specifically designed to operate with
Puron. Use only factory--authorized components. Filter drier must
be replaced whenever the refrigerant system is opened. When
removing a filter drier, use a tubing cutter to cut the drier from the
system. Do not unsweat a filter drier from the system. Heat from
unsweating will release moisture and contaminants from drier into
system.

Puron (R--410A) Refrigerant Charging

Refer to unit information plate and charging chart. Some R--410A
refrigerant cylinders contain a dip tube to allow liquid refrigerant to
flow from cylinder in upright position. For cylinders equipped
with a dip tube, charge Puron units with cylinder in upright
position and a commercial metering device in manifold hose.
Charge refrigerant into suction--line.

Step 13 — System Information

Loss of Charge Switch

The loss of charge switch is a protective device wired into control
circuit (low voltage). It shuts off the compressor if abnormally low
pressures are present in the refrigeration circuit.

NOTE: Because these switches are attached to refrigeration
system under pressure, it is not advisable to remove this device for
troubleshooting unless you are reasonably certain that a problem
exists. If switch must be removed, remove and recover all system
charge so that pressure gauges read 0 psi. Never open system
without breaking vacuum with dry nitrogen.

Check Defrost Thermostat

There is a liquid header with a brass distributor and feeder tube
going into outdoor coil. At the end of 1 of the feeder tubes, there is
a 3/8--in. OD stub tube approximately 3 in. (76 mm) long. (See
Fig. 22). The defrost thermostat should be located on stub tube.
Note that there is only 1 stub tube used with liquid header, and on
most units it is the bottom circuit.

The defrost thermostat signals heat pump that conditions are right
for defrost or that conditions have changed to terminate defrost. It
is a thermally actuated switch clamped to outdoor coil to sense its

temperature. Normal temperature range is closed at 32_  3_F(0
 1.7_C) and open at 65_  5_F(18 2.8_C).

NOTE: The defrost thermostat must be located on the liquid side
of the outdoor coil on the bottom circuit and as close to the coil as
possible.

FEEDER TUBE

STUB TUBE

607C

DEFROST
THERMOSTAT

C99029

Fig. 21 -- Defrost Thermostat

TROUBLESHOOTING

Refer to the Cooling and Heating Troubleshooting Chart (Table 8)
for troubleshooting information.

START--UP CHECKLIST

Use the Start--Up Checklist.

23

PURONR (R--410A) QUICK REFERENCE GUIDE

S Puron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure that servicing equipment and replacement

components are designed to operate with Puron

S Puron refrigerant cylinders are rose colored.
S Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.
S Puron systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose when

charging into suction line with compressor operating

S Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low--side retard.
S Use hoses with 700 psig service pressure rating.
S Leak detectors should be designed to detect HFC refrigerant.
S Puron, as with other HFCs, is only compatible with POE oils.
S Vacuum pumps will not remove moisture from oil.
S Do not use liquid--line filter driers with rated working pressures less than 600 psig.
S Do not leave Puron suction line filter driers in line longer than 72 hours.

607C

S Do not install a suction--line filter drier in liquid line.
S POE oils absorb moisture rapidly. Do not expose oil to atmosphere.
S POE oils may cause damage to certain plastics and roofing materials.
S Wrap all filter driers and service valves with wet cloth when brazing.

S A factory approved liquid--line filter drier is required on every unit.
S Do NOT use an R--22 TXV.
S If indoor unit is equipped with an R--22 TXV or piston metering device, it must be changed to a hard shutoff Puron TXV.
S Never open system to atmosphere while it is under a vacuum.
S When system must be opened for service, recover refrigerant, evacuate then break vacuum with dry nitrogen and replace filter

driers. Evacuate to 500 microns prior to recharging.

S Do not vent Puron into the atmosphere.
S Do not use capillary tube coils.
S Observe all warnings, cautions,andbold text.
S All indoor coils must be installed with a hard shutoff Puron TXV metering device.

24

SYMPTOM CAUSE REMEDY

Compressor and condenser fan will not start.

Compressor will not start but condenser fan
runs

Three-- phase scroll compressor
makes excessive noise, and there may be a

low pressure differential.

Compressor cycles (other than normally sat­isfying thermostat).

Compressor operates continuously

Excessive head pressure

Head pressure too low

Excessive suction pressure

Suction pressure too low

Table 8 – Troubleshooting Chart

Power failure Call power company
Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker

Defective contactor, transformer, or high--pressure,
loss--of--charge or low--pressure switch

Insufficient line voltage Determine cause and correct
Incorrect or faulty wiring Check wiring diagram and rewire correctly

Thermostat setting too high

Faulty wiring or loose connections in compressor cir­cuit

Compressor motor burned out, seized, or Determine cause
internal overload open Replace compressor
Defective run/start capacitor, overload, start relay Determine cause and replace

One leg of 3--phase power dead

Scroll compressor is rotating in the wrong direction

Refrigerant overcharge or undercharge

Defective compressor Replace and determine cause
Insufficient line voltage Determine cause and correct
Blocked condenser Determine cause and correct
Defective run/start capacitor, overload or start relay Determine cause and replace
Defective thermostat Replace thermostat
Faulty condenser-- fan motor or capacitor Replace
Restriction in refrigerant system Locate restriction and remove
Dirty air filter Replace filter
Unit undersized for load Decrease load or increase unit size
Thermostat set too low Reset thermostat
Low refrigerant charge Locate leak, repair, and recharge
Mechanical damage in compressor Replace compressor

Air in system

Condenser coil dirty or restricted Clean coil or remove restriction
Dirty air filter Replace filter
Dirty condenser coil Clean coil
Refrigerant overcharged Recover excess refrigerant

Air in system

Condenser air restricted or air short-- cycling Determine cause and correct

Low refrigerant charge Check for leaks, repair, and recharge.
Compressor IPR leaking Replace compressor
Restriction in liquid tube Remove restriction

High heat load Check for source and eliminate
Compressor IPR leaking Replace compressor
Refrigerant overcharged Recover excess refrigerant

Dirty air filter Replace filter

Low refrigerant charge Check for leaks, repair and recharge

Metering device or low side restricted Remove source of restriction

Insufficient evaporator airflow

Temperature too low in conditioned area Reset thermostat

Outdoor ambient below 55°F (12.7°C) Install low--ambient kit

Filter drier restric ted Replace filter

Replace component

Lower thermostat setting below room tempera­ture

Check wiring and repair or replace

Replace fuse or reset circuit breaker
Determine cause

Correct the direction of rotation by reversing the
3--phase power leads to the unit.

Recover refrigerant, evacuate system, and re­charge to capacities shown on rating plate

Recover refrigerant, evacuate system, and re­charge

Recover refrigerant, evacuate system, and re­charge

Increase air quantity
Check filter–replace if necessary

607C

25

START-UP CHECKLIST

(Remove and Store in Job File)

I. Preliminary Information

MODEL NO.:_________________________________
SERIAL NO.:__________________________________
DATE:_______________________________________
TECHNICIAN:_________________________________

II. PRE-START-UP (Insert checkmark in box as each item is completed)

( ) VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT
( ) REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS
( ) CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS
( ) CHECK THAT INDOOR (EVAPORATOR) AIR FILTER IS CLEAN AND IN PLACE
( ) VERIFY THAT UNIT INSTALLATION IS LEVEL
( ) CHECK FAN WHEEL, AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS

607C

III. START-UP
ELECTRICAL

SUPPLY VOLTAGE __________________________________
COMPRESSOR AMPS_________________________________
INDOOR (EVAPORATOR) FAN AMPS___________

TEMPERATURES

OUTDOOR (CONDENSER) AIR TEMPERATURE ___________DB
RETURN-AIR TEMPERATURE ___________DB ___________WB
COOLING SUPPLY AIR ___________DB ___________WB
HEAT PUMP SUPPLY AIR ___________

ELECTRIC HEAT SUPPLY AIR ___________

PRESSURES

REFRIGERANT SUCTION ___________PSIG SUCTION LINE TEMP*___________
REFRIGERANT DISCHARGE ___________PSIG DISCHARGE TEMP†___________
( ) VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS

*Measured at suction inlet to compressor
†Measured at liquid line leaving condenser.

E2008 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 03/08

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incur r ing obligations.

26

A08187

Catalog No.II607C--- 02

Replaces: II607C--- 01