Download MTD 070 Series Unit installation

Operating Limits
Environment
This equipment is designed for indoor installation only.
Sheltered locations such as attics, garages, etc., generally
will not provide sufficient protection against extremes in
temperature and/or humidity, and equipment performance,
reliability, and service life may be adversely affected.
Air and water limits
Water enthalpy
Standard Units
Min. Ambient Air
Normal Ambient Air
Max. Ambient Air
Min. Ent. Air ➀ ➁
Normal Ent. Air,
dw/wb
Max. Ent. Air
db/wb ➀ ➁
Cooling
50˚F/10˚C
80˚F/27˚C
100˚F/38˚C
50˚F/10˚C
80/67˚F
27/19˚C
100/83˚F
38/28˚C
Heating
50˚F/10˚C
70˚F/21˚C
85˚F/29˚C
50˚F/10˚C
70˚F
21˚C
80˚F
27˚C
Extended Range
Units
Cooling
Heating
40˚F/5˚C
40˚F/5˚C
80˚F/27˚C 70˚F/21˚C
100˚F/38˚C 85˚F/29˚C
50˚F/10˚C 40˚F/5˚C
80/67˚F
70˚F
27/19˚C
21˚C
100/83˚F
80˚C
38/28˚C
27˚C
Extended Range
Units
Cooling
Heating
Cooling
Heating
55°F/13°C 55°F/13°C 40°F/5°C 40°F/5°C
85°F/29˚C 70˚F/21°C 85°F/29˚C 70˚F/21°C
110°F/43˚C 90°F/32°C 110°F/43˚C 90°F/32°C
Standard Units
Min. Ent. Water ➀ ➁
Normal Ent. Water
Max. Ent. Air ➀ ➁
➀ At ARI flow rate.
➁ Maximum and minimum values may not be combined. If one
value is at maximum or minimum, the other two conditions
may not exceed the normal condition for standard units.
Extended range units may combine any two maximum or
minimum conditions, but not more than two, with all other
conditions being normal conditions.
Additional Information For Initial Start-up Only
Standard units
Units are designed to start and operate in an ambient of
40°F (5°C), with entering air at 40°F (5°C), with entering
water at 70°F (21°C), with both air and water flow rates
used in the ARI Standard 320-86 rating test, for initial startup in winter.
Note: This is not a normal or continuous operating condition. It is assumed that such a start-up is for the purpose
of bringing the building space up to occupancy temperature.
Extended range units
Extended range heat pump conditioners are designed to
start and operate in an ambient of 40°F (5°C), with entering
air at 40°F (5°C), with entering water at 40°F (5°C), with both
air and water at flow rates used in the ARI Standard 320-86
rating test, for initial start-up in winter.
Note: This is not a normal or continuous operating condition. It is assumed that such a start-up is for the purpose
of bringing the building space up to occupancy temperature.
Page 10 / IM 526
Operating voltages
115/60/1 . . . .
208-230/60/1
265/60/1 . . . .
230/50/1 . . . .
460/60/3 . . . .
380/50/3 . . . .
575/60/3 . . . .
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104
197
238
197
414
342
515
volts
volts
volts
volts
volts
volts
volts
min.;
min.;
min.;
min.;
min.;
min.;
min.;
127
253
292
253
506
418
632
volts
volts
volts
volts
volts
volts
volts
max.
max.
max.
max.
max.
max.
max.
Note: Voltages listed are to show voltage range. However,
units operating with overvoltage and undervoltage for
extended periods of time will experience premature component failure. Three phase system unbalance should not
exceed 2%.