Friedrich MULTI ZONE MR48DEY3JM - Page 77

10. Installation
20 _ Ceiling concealed duct - low static pressure
Part 2 Product data_Indoor units
MULTI ZONEMULTI ZONE
5) Checking the drainage
① Remove the air filter.
② Check the drainage
• Spray one or two glasses of water on the evaporator.
• Ensure that water flows through the drain hose from indoor
unit without any leakage.
10.6 Electric wiring work
1) General instructions
① All field supplied parts and materials, electric works must
conform to local codes.
Use copper wire only.
② Follow the "WIRING DIAGRAM” attached to the unit
body to wire the outdoor unit, indoor units and the remote
controller.
③ All wiring must be performed by an authorized electri-
cian.
④ This system consists of multiple indoor units. Mark each
indoor unit as unit A, unit B..., and be sure the terminal
board wiring to the outdoor unit and ID unit are properly
matched. If wiring and piping between the outdoor unit
and an indoor unit are mismatched, the system may
cause a malfunction.
⑤ A circuit breaker capable of shutting down the power
supply to the entire system must be installed.
2) Wiring connection
Connect the wires to the terminals on the control board ind
vidually according to the outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the
terminal No. are the same as those of indoor unit respec-
tively
Unit
Drain pipe
(Local supply)
Thermal insulation
(Local supply)
Elbow
Drain pump
1/50~1/100
Terminal Block Indoor Terminal Block Indoor
1(L) 2(N) 3
Outdoor unitIndoor unit
Terminal Block outdoor
1(L) 2(N) 3