Mermaid Air Conditioner - Manual (Page 22)

Once you have selected the spot, remove the face of the thermostat from the back panel
and install by following these instructions:
6. Depress the thumb tab on the bottom of the thermostat and carefully pull the two
pieces apart.
7. Lift the thermostat up and off the subbase.
8. Drill a 1/4 inch hole in the wall and feed the cable through. With the cable behind
the wall, the thermostat back plate can be pressed flat to the wall. Now mark the
mounting hole spots on the wall. Only two 1/2 s/s screws are needed to secure
the thermostat. Predrill the holes before screwing to the wall. (Exact vertical
mounting is necessary only for appearance).
9. Route the thermostat power cable, out of view, back to the air conditioner
compartment. Secure the cable at appropriate spots along the way to prevent
sagging or looping so it will not be inadvertently snagged by stowed equipment.
10. To connect your gray thermostat wire to the thermostat AND the black electrical
box, follow these procedures:
F. On both ends of the gray wire, cut away the gray insulation being
careful not to cut into the RED, GREEN, WHITE, AND BLACK
wires.
G. Intall the four fork terminals (provided) by stripping back ¼” of each
of the colored wires and crimping the terminals to the wires. Ensure
with your crimp that you have a solid grasp of the wire, not insulation.
H. The four fork terminal connection will be connected to the black
terminal block on the upper side of the black electrical box for the air
conditioning unit. Follow the R = RED, G = GREEN, W = WHITE, B
= BLACK color code for the connections at the electrical box.
I. For connections at the thermostat, install (if already not done so) the
RED “jumper” wire (provided) between the “RH” and “RC” terminals
inside the subbase of the thermostat.
J. Carefully insert the other end of the previously ¼” stripped gray wire
into the appropriate locations. Follow the chart below for guideance.
• Red wire = “RH/RC” connection on thermostat – either “RH” or “RC”
lead is acceptable as the red jumper wire (provided) connects these
terminals together. This is the unit’s 24 volts from the transformer when
heating or cooling is called for.
• Green wire = “G” connection on thermostat. This is the fan operation
wire.
• White wire = “W” connection on thermostat. This wire is for heat – if
your system is a heating/cooling unit.
• Black wire = “Y” connection on thermostat. This wire is for the cooling
mode.