Mammoth 3/4 to 5 Tons: Single Circuit Horizontal and Vertical (U-Vintage) - Manual (Page 11)

11
MAMM-WSHP-IOM-1UB (September 2011)
Operating Limits
Application Limits
WATER TEMPERATURES / Degrees F * Standard range Low Temp Geothermal
COOLING HEATING COOLING HEATING
MINIMUM ENTERING WATER TEMPERATURE 50˚ 50˚ 40˚ 25˚
MAXIMUM ENTERING WATER TEMPERATURE 110˚ 90˚ 110˚ 90˚
* Application limits apply at or above standard flow rates specified for size of unit.
Application Limits
AIR TEMPERATURES / Degrees F * Standard range Low Temp Geothermal
COOLING HEATING COOLING HEATING
MINIMUM AMBIENT AIR TEMPERATURE ** 50˚ 50˚ 50˚ 50˚
MAXIMUM AMBIENT AIR TEMPERATURE ** 110˚ 110˚ 110˚ 110˚
MINIMUM ENTERING AIR TEMPERATURE 65˚ 50˚ 65˚ 40˚
MAXIMUM ENTERING AIR TEMPERATURE 100˚ 80˚ 100˚ 80˚
* Application limits apply at or above standard flow rates specified for size of unit.
** Minimum and maximum ambient conditions apply to ducted supply and return units only.
Environment
Standard Range Units
Units are designed to start-up in an ambient
temperature of 50°F (10°C), with entering air at 50°F
(10°C), with entering water at 70°F (21°C), with air and
water flow rates used in the ISO13256-1 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.
Geothermal Range Units
Geothermal heat pump units are designed to start-up in
an ambient temperature of 50°F (10°C), with entering
air at 40°F (5°C), with entering fluid at 25°F (-4°C), with
air and water at flow rates used in the ISO 13256-1
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.
Operating voltages
208-230/60/1 . . . . . . . . . 197 volts min.; 253 volts max.
265/60/1 . . . . . . . . . . . . .239 volts min.; 291 volts max.
208-230/3/60. . . . . . . . . .197 volts min.; 253 volts max.
460/3/60. . . . . . . . . . . . . 414 volts min.; 506 volts max.
380/3/50. . . . . . . . . . . . . 342 volts min.; 418 volts max.
575/3/60. . . . . . . . . . . . . 515 volts min.; 632 volts max.
220-240/1/50 . . . . . . . . . 216 volts min.; 264 volts max.
380/3/60. . . . . . . . . . . . . 342 volts min.; 418 volts max.
Additional Information For Initial Start-up Only
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.
Note:
Voltages listed are to show voltage range. However,
units operating with over- or under-voltage conditions
for extended periods of time will experience premature
component failure. Three phase system imbalance
should not exceed 2%.