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START-UP

42TW unit is designed to operate in hot and 
humid conditions without condensation 
problem because of the rubber insulated 
drain pan. Refer to the startup checklist in 

page 11 for startup procedure. 

SERVICE 

TO CLEAN COIL

1. Be sure electrical service switch is open, 
locked, and tagged while working on unit. 
2. Remove supply-air grille access panel and 
brush between coil fins with stiff wire brush. 
Follow-up by cleaning with vacuum cleaner. If 
coil is cleaned with air hose and nozzle, take 
care not to drive dirt and dust into other 
components. 

CHECK DRAIN 

Lock open and tag unit electrical service 
switch. 
Check drain pan, drain line and trap at start 
of each cooling season. A standard type pipe 
cleaner for 5/8-in. ID pipe can be used to 
ensure that pipe is clear of obstruction so that 
condensate is carried away. 

CLEAN FAN WHEEL 

Lock open and tag unit electrical service 
switch. 
For access to fan assembly, remove front or 
bottom panel. 

Fan assembly may be removed from its 
tracks if unit has a long conduit lead. Use a 
stiff brush or vacuum to remove dirt and 
debris from scroll.Wipe all fan surfaces with a 
damp cloth. 

CLEAN ELECTRIC HEATER 

Lock open and tag unit electrical service 
switch. 
1. Remove dust, dirt, or foreign material 
before start-up. Do not block normal airflow to 
and from units; blockage may damage 
electric heaters. 
2. Clean heater elements with soft brush or 
vacuum cleaner as necessary. 

CLEAN OR REPLACE AIR FILTERS 

Lock open and tag unit electrical service 
switch. 
At the start of each cooling season and after 
each month of operation (more or less 
depending on operating conditions) replace 
throwaway filter or clean permanent filter. 
THROWAWAY FILTER 

²

 Replace filter with 

a good quality filter. Do not attempt to clean 
and reuse disposable filters. 
PERMANENT FILTER 
1. Tap on solid surface to dislodge heavy 
particles. 
2. Wash in hot water. 
3. Set filter on end so that water drains out 
through slots in frame. Allow filter to dry 
thoroughly. 

See Fig.7 for filter access.

Fig.7

±

Filter Access.

Содержание 42TD Series

Страница 1: ...rvicing air conditioning equipment can be hazardous due to system pressure and electrical components Only trained and qualified service personnel should install repair or service air conditioning equi...

Страница 2: ...hould be checked before the installation is started The installer should be familiar with each of the following requirements before the actual installation Space requirement and clearance See Fig 3 Ce...

Страница 3: ...outlet High speed 0 Static Table 3 Physical Data 42TW4 42TD4 4 Pipe System Model 42TW4 Model 42TD4 Size 03 04 05 06 08 10 11 14 CFM 313 533 623 702 795 1065 1247 1416 Cooling Capacity kw 3 4 5 3 6 9 8...

Страница 4: ...0 38 0 29 0 44 0 34 0 24 Watts 109 91 73 93 75 56 86 67 48 10 Amps 0 84 0 75 0 65 0 72 0 62 0 53 0 64 0 54 0 44 Watts 164 145 127 140 121 103 124 105 86 11 Amps 1 03 0 84 0 65 0 86 0 70 0 53 0 78 0 61...

Страница 5: ...7 1055 1091 16 2062 1575 1268 1770 1295 1530 H At High Fan Speed M At Medium Fan Speed L At Low Fan Speed Table 6 b Fan Performance 42TW 4 SI 42TW4 Air Flow m 3 hr Ex Static Pres Pa 0 12 5 25 37 5 Uni...

Страница 6: ......

Страница 7: ...age against available power supply For special installation consult local building and electrical codes INSTALLATION PLACING UNIT IN POSITION 1 Select the unit location Allow adequate space for free a...

Страница 8: ...unit to operate within duct external static pressure limits as shown on job submittals Units designed to operate with ductwork may be damaged if operated without intended ductwork attached Units provi...

Страница 9: ...inutes to prevent overloading 2 Operation Mode Selection Key Toggles the operation mode Cool Dry Heat or Fan only 3 Fan Speed Selection Key Toggles the fan speed Auto High Medium or Low Note Fan key i...

Страница 10: ...n Sleep function for healthy sleep to control automatically the room temperature and stop automatically the operation of the air conditioner after certain set off time Sleep mode is valid in cool or h...

Страница 11: ...WIRING SCHEMATIC 42TW TD COOL HEAT...

Страница 12: ...WIRING SCHEMATIC 42TW TD COOL HEAT WITHOUT CONTROL...

Страница 13: ...fan assembly remove front or bottom panel Fan assembly may be removed from its tracks if unit has a long conduit lead Use a stiff brush or vacuum to remove dirt and debris from scroll Wipe all fan sur...

Страница 14: ...t protected from direct foreign matter Cooling Heating Connections 13 Connect field piping to unit 14 Pressure test all piping for leaks 15 Install drain line traps as required 16 Insulate all piping...

Страница 15: ...NOTES...

Страница 16: ...Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations...

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