Mammoth V-Cube Slim E-Series (Air Handler Version) - Manual (Page 10)

10
MAMM-VCS-IOM-2EB (October 2011)
1. Open all valves to the full open position and turn on
power to the V-Cube Slim™.
2. Set room temperature sensor for “Fan Only” opera-
tion by selecting “Off” at the system switch and
“On” at the fan switch. If “Auto” fan operation is se-
lected, the fan will cycle. Check for proper air de-
livery.
3. Measure the temperature difference between en-
tering and leaving water. The difference in water
temperature should be approximately 1 ½ times
greater in the cooling mode as compared to the
heating mode . Adjust the combination shutoff/
balancing valve in the return line to a water flow
rate which will result in the temperature difference.
4. In the heating mode, with the entering water tem-
perature in the range of 60°F to 80°F, the tempera-
ture difference between the entering water and
leaving water should be between 6°F to 12°F. In
the cooling mode, if the leaving air temperature
falls below 35°F, adjust water flow to the unit to >3
gpm/ton to avoid freeze damage to the unit.
Start-up
5. To verify proper drainage of condensate, slowly
add water to the condensate pan until proper drain-
age is accomplished.
6. If the unit fails to operate, check the following:
7. If the unit starts but after a short time trips on high
or low head pressure, check the following:
a. Verify that the incoming power to the unit
matches the nameplate and that the main dis-
connect is turned on.
b. Verify a call for heating or cooling is present.
a. Verify that airflow is not impeded by a dirty air
filter, improper fan rotation or improper duct
sizing.
b. Verify that the water flow rate is within limits.
Check the water flow balance and back flush if
necessary.
Operating voltages
208-230/60/3 . . .. . . . . . . . . . . . . . . . . . 197 volts min.; 253 volts max.
460/60/3 . . . . . . . . . . . . . . . . . . . . . . . . 414 volts min.; 506 volts max.
380-415/50/3. . . . . . . . . . . . . . . . . . . . ..342 volts min.; 418 volts max
575/60/3. . . . . . . . . . . . . . . . . . . . . . . . .515 volts min.; 632 volts max.
Additional Information For Initial Start-up Only
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%.
Operating Limits
Environment
This equipment is designed for indoor installation only.
Sheltered locations such as attics, garages, etc., gen-
erally will not provide sufficient protection against ex- tremes in temperature and/or humidity, and equipment
performance, reliability, and service life may be ad-
versely affected.