Precision Control Systems ChamberIR 4069 - Manual (Page 16)

5-3
5.5 ELECTRICAL CONNECTIONS: The Model 4069 is supplied with two 12-
foot (254 mm) power cable bundles. The cable bundles consist of the power wires for the
lamps and fan, as well as control wires for the thermostat (TSTAT), water flow interlock
switch (WFIS), and heater open interlock switch (HILS). If the Model 4069 was ordered
without the "PC" option, the wires are not terminated into a connector. It is the
customer's responsibility to hard wire the heater into the power control system. Wiring
diagrams can be found in the Appendix.
Note: The heater should never be directly wired into a voltage source. The heater should
always be wired into a power controlling system.
THERMOSTAT (TSTAT): The Model 4069 is supplied with a thermostat (TSTAT) to
protect from overheating. The TSTAT protects the heater from overheating only if the
TSTAT is properly wired into the control interlock of the power control system. The
TSTAT should be wired into a disconnect relay of the power controller/system. If the
TSTAT "open" (trips), the disconnect relay of the power control system should remove
power to the Model 4609 Heater. The TSTAT is mounted to the backside of the last
reflector before the cooling fluid exits the heater. The TSTAT has a fixed trip
temperature of 160ºF. If the reflector reaches 160ºF, the TSTAT will "open" and will not
"close" (reset) until it cools down to 130ºF.
WATER FLOW SWITCH (WFIS): Water-cooling is required for proper and safe
operation of the Model 4069. The heater is supplied with a Water Flow Interlock Switch
(WFIS) to ensure that it has water-cooling going through the reflectors, to protect from
overheating. The WFIS protects the heater from overheating only if the WFIS is properly
wired into the control interlock of the power control system. The WFIS should be wired
Model Number
System Voltage
(3 phase)
System
Amperage
4069-12R-10L-12kW-240V-PC-XX 240 29
4069-12R-10L-12kW-480V-PC-XX 480 15
4069-12R-10L-24kW-240V-PC-XX 240 58
4069-12R-10L-24kW-480V-PC-XX 480 29
4069-12R-16L-19kW-240V-PC-XX 240 47
4069-12R-16L-19kW-480V-PC-XX 480 24
4069-12R-25L-30kW-480V-PC-XX 480 37
4069-12R-38L-46kW-480V-PC-XX 480 55
4069-18R-10L-18kW-240V-PC-XX 240 44
4069-18R-10L-18kW-480V-PC-XX 480 22
4069-18R-10L-36kW-480V-PC-XX 480 43
4069-18R-16L-29kW-240V-PC-XX 240 70
4069-18R-16L-29kW-480V-PC-XX 480 35
4069-18R-25L-45kW-480V-PC-XX 480 55
4069-18R-38L-68kW-480V-PC-XX 480 83
Table 5-1. Electrical System Requirements