Fujitsu ASU-RLF Installation instructions

Fujitsu ASU-RLF Coil Cleaning

Disassembly Instructions

ALWAYS SHUT FF P WER BEF RE ANY W RK

IS PERF RMED

Remove the front

cover and the air

filters. Next remove

the 2 screws on the

right and 1 screw on

the left, see arrows.

After removing all the screws, take a flat head screwdriver and locate where the top of

the cover clips in. Gently pry the top of the cover off at the locations shown. The p ll the

cover off, top first.

Once the cover is off

remove the room and

pipe thermistors off the

top right of the nit.

Remove the 3

screws for the

electrical section.

Pipe thermistor

Room

Temperature

thermistor

This is how it sho ld

look once yo remove

the control box.

Ground screws

thermistor

Ground screw

Next yo need to

separate the coil

from the blower

wheel and drain

pan. Remove the

2 screws on the

right and 2 screws

on the left.

Remove the fan

motor cover

screw.

Disconnect the

field wires from

the terminal

block and make

s re they are not

attached to the

nit anywhere.

LEFT SIDE RIGHT SIDE

Once all screws have been removed, the fan section sho ld be able to drop o t of the nit.

Unclip the bottom of the nit from the wall bracket. Disconnect the drain line from the back

of the nit. The drain pan, blower wheel, and fan motor sho ld drop o t of the nit now.

Fix a plastic sheet aro nd the

evaporator eno gh to protect the

wall, floor, and a reasonable area

aro nd the evaporator.

Use a non-acidic HVAC coil cleaner.

Follow the instr ction on the cleaning

sol tion on how to apply and rinse the

cleaner.

Cleaning the Evaporator Coils.

Cleaning the Drain Pan

Remove the blower wheel from the from the

drain pan and remove the blower motor.

Example: Simple Green

Use a ready to se non-acid cleaner,

make s re to follow the instr ctions on

the cleaning sol tion.

Make s re to dry the drain pan

before re-installing.

Cleaning the Blower Wheel

After cleaning the blower wheel, be s re

to l bricate the fan holder with a

silicone grease.

Be s re to clean the blower wheel with

warm water and allow the blower wheel

time to dry before placing the wheel in

the system.

Insert

silicone

grease

here.

MOLD- A f ng s that prod ces growth on n mero s types of damp or decaying organic

matter.

MOLD- Grows where it is cool and dark and where the area contin es to stay wet.

MOLD- Spores that can be carried thro gh the air with d st and other partic lates.

MOLD- Cannot grow on s bstances, s ch as clean metal and clean plastic.

HOW TO AVOID MOLD AND MILDEW GROWTH

INSPECT AND CLEAN ALL FILTERS PERI DICALLY.

INSPECT AND CLEAN ALL C ILS PERI DICALLY.

PR PERLY SEAL ALL PENETRATI N H LES.

PR PERLY WRAP ALL PIPES THAT C NDENSATE.

Basic maintenance procedures will be found

IN ALL PERATI N

MANUALS

Basic maintenance procedures will be found

IN ALL PERATI N

MANUALS

WARRANTY- Does not cover Mold and Mildew growth.

F jits General America Inc.

353 Ro te 46 West, Fairfield NJ 07004

Phone: (973) 575-0380 Fax: (973) 575-2194

Email: ServiceHVAC@f jits general.com

Ca se of Mold Mold growth on the evaporator is ca sed by improper cleaning of the

filters and coil.

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