C L I M AT E M A S T E R WAT E R - S O U R C E H E AT P U M P S
TSM/TSL Vertical Stack
R e v. : J a n u a r y 1 8 , 2 0 2 1
C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s
38
Electrical Wiring – Line Voltage
Electrical - Line Voltage
All field installed wiring, including electrical ground, must
comply with the National Electrical Code as well as all
applicable local codes. Refer to the unit electrical data for
fuse sizes. Consult wiring diagram for field connections
that must be made by the installing (or electrical)
contactor. All final electrical connections must be made
with a length of flexible conduit to minimize vibration and
sound transmission to the building.
WARNING!
To avoid possible injury or death due to electrical
shock, open the power supply disconnect switch and secure
it in an open position during installation.
CAUTION!
Use only copper conductors for field installed
electrical wiring. Unit terminals are not designed to accept
other types of conductors.
⚠
CAUTION!
⚠
General Line Voltage Wiring -
Be sure the available
power is the same voltage and phase shown on the unit
serial plate. Line and low voltage wiring must be done in
accordance with local codes or the National Electric Code,
whichever is applicable.
Power Connection -
Line voltage connection is made by
connecting the incoming line voltage wires to the “L” side
of the contactor.
208 Volt Operation -
All commercial 208/230 Volt units
are factory wired for 208 Volt operation. If supply volt-
age is 230V, then the transformer must be rewired to the
230V tap as illustrated on the wiring diagram by switch-
ing the red (208V) and the orange (230V) wires at the
contactor terminal.
Unit wiring diagrams available at www.climatemaster.
com. Select ‘Commercial Professional‘, ‘Literature‘, ‘Wiring
Diagrams’
Blower Speed Selection –
Units with PSC or ECM-CT Motor
PSC (Permanent Split Capacitor) blower fan speed can be
changed by moving the speed tap wires on the fan motor
terminal block. See Figure 12.
Note: Check blower table 5a-5n, must maintain minimum
CFM for your external static.
Blower Speed Selection – Units with ECM-CV Motor
CFM can be changed from default settings by using a
communicating thermostat or service tool with a vertical
stack service harness. Use information in Table 5 to set
CFM for your static.
Special Note for AHRI Testing:
To achieve rated airflow
for AHRI testing purposes on all PSC products TSM09
and 12 use high speed tap for heating and medium tap
for cooling, all other models use high speed tap for both.
When the heat pump has experienced less than 100
operational hours and the coil has not had sufficient time
to be “seasoned”, it is necessary to clean the coil with a
mild surfactant such as Calgon to remove the oils left by
manufacturing processes and enable the condensate to
properly “sheet” off of the coil.
WARNING!
Disconnect electrical power source to prevent
injury or death from electrical shock.
⚠
WARNING!
⚠
H M L
Azul
Fan Motor
Motor del Ventilador
Conectar el cable azul a:
H para velocidad de ventilador alta
M para velocidad de ventilador media
L para velocidad de ventilador baja
La configuración de fábrica es velocidad
media
H
for High speed tap
M
for Medium speed tap
L
for Low speed tap
Fan Motor
Thermostat
Unit
Type
Terminal
Factory
Motor
Connection
Board Connection
1 Stage
G
Med TAP
G
DXM2/
CXM
2 Stage
Auto Speed
Change
G
Y2
Med TAP
High TAP
G
Y2
DXM2
G
BR2
CXM
Relay
2 Speed
Manual
Change
G
G2
Med TAP
High TAP
G
H
DXM2
G
BR2
CXM
Relay
⚠
WARNING!
⚠
Figure 12: PSC Motor Speed Tap Selection
Table 4
