Echelon HC1B Installation And Start-up Instructions Manual - page 2
PROCEDURE 2—INSTALL ON A SOLID, LEVEL MOUNTING PAD
If conditions or local codes require the unit be attached to pad, tiedown bolts should be used and fastened through knockouts provided in unit base
pan. Refer to unit mounting pattern in Fig. 2 to determine base pan size and knockout hole location.
When installing, allow sufficient space for airflow clearance, wiring, refrigerant piping, and service. Allow 30-in. clearance to service end of unit
and 48 in. above unit. For proper airflow, a 6-in. clearance on 1 side of unit and 12 in. on all remaining sides must be maintained. Maintain a
distance of 24 in. between units. Position so water, snow, or ice from roof or eaves cannot fall directly on unit.
On rooftop applications, locate unit at least 6 in. above roof surface. Place unit above a load-bearing wall and isolate unit and tubing set from
structure.
Arrange supporting members to adequately support unit and minimize transmission of vibration to building. Consult local codes governing rooftop
applications.
PROCEDURE 3—ELEVATE UNIT
For proper drainage the heat pump must be raised off the mounting surface.
PROCEDURE 4—REPLACE INDOOR REFRIGERANT FLOW-CONTROL DEVICE PISTON WITH THERMOSTATIC EXPANSION
VALVE (TXV)
CAUTION: For proper unit operation and reliability, this unit must be installed with a field-supplied hard shutoff TXV.
Do not install with evaporator coils having capillary tube metering devices of piston.
After removing existing refrigerant flow-control device piston from indoor coil, install field-supplied bi-flow hard shutoff TXV kit.
(See Fig. 3.)
For TXV kit part number and charging instruction, refer to TXV label in your unit. If the indoor unit (fan coil) comes factory equipped with a
bi-flow hard shutoff TXV, no TXV charge is required.
Install TXV kit to indoor coil as follows:
1. Install suction tube adaptor.
2. Install liquid flare-to-sweat adaptor.
3. Connect external equalizer tube to fitting on suction tube adaptor.
4. Position sensing bulb on horizontal portion of suction tube adaptor. Secure using supplied hardware. Insulate bulb after installation. (See
Fig. 4.)
5. Leak check all connections.
CAUTION: DO NOT BURY MORE THAN 36 IN. OF REFRIGERANT TUBING IN GROUND. If any section of tubing is
buried, there must be a 6-in. vertical rise to the valve connections on the outdoor unit. If more than the recommended length
is buried, refrigerant may migrate to cooler buried section during extended periods of unit shutdown, causing refrigerant
slugging and possible compressor damage at start-up.
Fig. 2—Unit Reference Drawing
UNIT
SIZE
A
B
C
D
E
In.
In.
In.
In.
In.
018
22-1/2
18-1/2
4-1/16
8-3/16
5/8
024-036
30
23-1/2
6-1/2
10
3/4
042-060
30
23-1/2
6-1/2
10
7/8
A92490
.
UNIT RATING
PLATE
INDIANAPOLIS IN
46206
313948-401
REV A
MAX CKT-BKR
MAX HACR CKT-BKR
MAX FUSE
TYPE
MINIMUM CIRCUIT AMPS
LO
HI
DESIGN/TEST PRESSURE GAGE
FLA
HZ
PH
VOLTS AC
LRA
RLA
HZ
PH
VOLTS AC
MAX
PH
LBS
PISTON
MODEL
PROD
SERIAL
N/A
USA
N/A
CANADA
MAX OVERCURRENT PROTECTIVE DEVICE
kPa
kPa
PSI
PSI
FAN MOTOR
COMPRESSOR
SUITABLE FOR OUTDOOR USE
MIN
HZ
Kg
VOLTS
POWER SUPPLY
ID
OD
FACTORY CHARGED R-22
®
®
PERMISSIBLE VOLTAGE AT UNIT
CARRIER CORP
AIR
DISCHARGE
AIR
DISCHARGE
AIR IN
AIR IN
B
AIR IN
D
C
AIR DISCHARGE
3
/
8
″
DIA
LIQUID TUBE CONN
FIELD POWER SUPPLY CONN
7
/
8
″
DIA HOLE WITH
1
1
/
8
″
DIA KNOCKOUT
AND 1
3
/
8
″
DIA KNOCKOUT
AIR IN
A
FIELD CONTROL POWER
SUPPLY CONN
7
/
8
″
DIA HOLE
E
DIA SERVICE LINE CONN
TIEDOWN KNOCKOUTS
(2) PLACES
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