Koldwave KWV-20, Инструкция по установке, эксплуатации и обслуживанию

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Subject to change without notice.
6
KWV-20G*ATA**
REV — 02/26/20
Figure 2 – Power Block Location
Internal wiring connects the incoming power to
a circuit breaker, which also serves as a service
disconnect switch. Switching the breaker to the
“ON” position supplies power to the unit.
Once the power is turned “ON”, proper sequencing
of the three phase power input will be indicated by
the lighting of the Phase Indicator Lamp (PIL). If
the lamp is lit, change any two of the conductors
(excluding the ground wire) at the power source.
Do not change wiring internal to the unit! This unit
will not run unless the phasing is correct.
CONTROLS
Toggle Switch TS1 – Blower Control:
When Toggle Switch TS1 is set to the ON position,
the Supply Air Blower will operate continuously.
At this point the system must be controlled using
either manual control or by the use of a thermostat.
Selector Switch 1 (SS1)
(Selection for Manual Control of Heat or Cool
Modes)
The Selector Switch 1 (SS1) is used to select
the desired manual control mode for the unit.
Set the selection to Thermostat Control when
the Thermostat shall be used to control the
conditioning of the air. Select Manual Cool when
1 to 2 stages of Manual Cooling is/are desired.
Select Manual Heat when 1 to 2 stages of Manual
Heating is/are desired. If Manual Cool or Manual
Heat is selected, the appropriate switch must then
be used to control the desired number of Heating
or Cooling Stages desired.
NOTE : A time delay is built into the system to
prevent Stage 1 and Stage 2 compressors
from energizing simultaneously if two
stages are desired to operate at the same
time. This time delay is set to 5 minutes.
Figure 3 - Thermostat
Thermostat Operation – Unit Mounted:
1. Set Selector Switch SS1 to the desired mode
of operation (COOL or HEAT).
2. Set the thermostat settings on the Penn A28
thermostat (see Figure 3 – Thermostat) to the
desired temperature setting. Turn the Tem-
perature dial to the desired temperature set-
ting.
3. Stage 1 and Stage 2 cooling or heating will op-
erate based upon the thermostat setting and
the mode selected in Step 1.
When the space temperature rises approximately
1° F above the setting the system will turn “ON”.
The differential between stages is approximately
2° F. The equipment will not cycle more than 6
times per hour in the cooling mode.
Mode
Switch
208-3-60
Phase
Reversal
MCA 78 .8
Optional
Hour Meter
Thermostat