Graco 260021 Heat Pump User Manual


 
Installation
8 311304H
Electrical Installation
12 VDC and 24 VDC
To install wiring for a negative ground system:
1. Ensure pump switch is OFF.
2. To remove electrical cover (2a), remove four bolts
(2c).
3. Strip 3 in. (76 mm) of outside insulation from power
cable (6c) from end opposite of fuse.
4. Strip 3/8 in. (10 mm) of insulation from red and black
wires.
5. Slide strain relief (6b) over end of power cable (6c)
on the end just stripped. Male thread of strain relief
should be toward stripped end.
6. Insert power cable through conduit thread in electri-
cal cover (2a). Connect wires from power cable to
wires from the motor using wire nuts (2e): red to red
and black to black.
7. Screw strain relief (6b) into electrical cover (2a).
8. Position power cable (6c) so the large diameter of
power cable extends through strain relief (6b).
9. Tighten nut on strain relief to form a seal around the
power cable.
10. Reinstall electrical cover (2a) on the pump.
11. Remove 1/2 in. (13 mm) of insulation from wires on
the fuse holder end of the power cable.
12. Attach battery clamps (6a) with red sleeve to red
wire and black sleeve to black wire. Wire must be
crimped to the battery clamp firmly to get a good
electrical connection.
13. Connect red wire with fuse holder inline to positive
battery terminal. Connect black wire to negative bat-
tery terminal.
Electrical Installation
115 VAC and 230 VAC
1. Ensure pump switch is OFF and electrical power is
disconnected.
2. Install conduit and user-supplied power cord to
pump.
3. Strip 3 in. (76 mm) from power cord jacket and 1/2
in. (13 mm) from individual conductor insulation.
4. To remove electrical cover (2a), remove four bolts
(2c).
5. Remove 1/2 in. (13 mm) of insulation from power
wires inside pump electrical terminal cavity.
6. Insert electrical power wire through conduit opening
in back of pump.
7. Using wire nuts (2e), connect wires: green to green,
white to white, and black to black.
8. Replace electrical cover.
If you are installing models 260580 or 260581 skip
this section. These pumps have been factory wired
Power cable can be cut to shorter length if 18 feet
(5.5 m) is not required. Cut to proper length and
proceed with steps 3 and 4.
On 115 VAC and 230 VAC pumps, electrical con-
nections must be made by a licensed electrician per
requirements of local, state, and national codes
regarding class 1, group D installations. Only rigid
conduit with threaded connections should be used.
Conduit opening in pump must be sealed with
waterproof, fuel-resistant sealant. Failure to comply
with this warning could result in injury from electrical
shock.