Daikin Templifier TGZ - Start-Up and Shutdown

sTarT-uP and shuTdown
www.DaikinApplied.com 39 IM 1137-4 • TEMPLIFIER
®
MODEL TGZ
sTarT-uP and shuTdown
Start-Up and Shutdown
NOTE: Daikin Applied service personnel or factory
authorized service agency must perform initial startup
in order to activate warranty. Return the “Scroll
Compressor Equipment Warranty Form” within 10
working days to Daikin Applied as instructed on the
form to obtain full warranty benets.
Pre Start-Up
1. Perform visual inspection of all components.
2. With main disconnect open, check all electrical connections
in control panel and starter to be sure they are tight and
provide good electrical contact. Use only copper wire to
connection points.
3. Check and inspect all water piping. Make sure ow direction
is correct and piping is made to correct connection on
evaporator and condenser.
4. Open all water ow valves to the condenser and evaporator.
5. Flush the cooling tower (if there is one used) and system
piping to be sure the system is clean. Start source water pump
and manually start hot water pump. Check all piping for leaks.
Vent the air from the evaporator and condenser water circuit as
well as from the entire water system. The cooler circuit should
contain clean, non-corrosive water.
6. Check to see that the water temperature sensor is installed
in the correct water line.
7. Making sure control stop switch S1 is open (off) and
pumpdown switch(es) PS1 and PS2 are on “manual
pumpdown,” throw the main power and control disconnect
switches to “on.” This will energize the crankcase heaters. Wait
a minimum of 12 hours before starting up unit.
8. Check compressor oil level. Prior to start-up, the oil level
should cover at least one-third of the sightglass.
9. Check pressure drop across evaporator and condenser, and
see that water ow is correct per the design ow rates and data
starting on page 16
10. Check the actual line voltage to the unit to make sure it is
the same as called for on the compressor nameplate within +
10% and that phase voltage unbalance does not exceed 2%.
Verify that adequate power supply and capacity is available to
handle load.
11. Check that the panel-mounted Heat/Cool switch is in the
correct position
12. Make sure all wiring and fuses are of the proper size. Also
make sure all interlock wiring is completed per Daikin Applied
diagrams. Use only copper wire.
13. Verify that all mechanical and electrical inspections by code
authorities have been completed.
14. Make sure all auxiliary load and control equipment is
operative and that adequate cooling heat is available for initial
start-up.
Start-Up
1. Open the compressor suction and discharge shutoff valves
until backseated. Always replace valve seal caps.
2. Open the manual liquid line shutoff valve and leak test the
unit.
3. Check to see that the unit circuit breakers are in the “off”
position.
4. Check to see that the pumpdown switches PS1 and PS2
are in the “manual pumpdown” position and the control system
switch S1 is in the “off” position.
5. Place the main power and control circuit disconnects to the
“on” position.
6. Verify crankcase heaters have operated for at least 12 hours
prior to start-up. Crankcase should be warm.
7. Adjust the setpoint on the MicroTech II controller to the
desired hot water temperature.
8. Start the auxiliary equipment for the installation by turning on
the time clock, ambient thermostat and/or remote on/off switch
and chilled water pump.
9. Check resets of all equipment protection controls.
10. Switch the unit circuit breakers to “On”.
11. Place pumpdown switches PS1 and PS2 to “auto” for
restart and normal operation.
12. Start the system by pushing the system switch S1 to “On”.
13. After running the unit for a short time, check the oil level
in each compressor crankcase and check for ashing in the
refrigerant sightglass.
14. After system performance has stabilized, complete
the “Compressorized Equipment Warranty Form” (Form
No. 206036A) to obtain full warranty benets. This form is
shipped with the unit. After completion return to your sales
representative from Daikin Applied.
15. Verify all control settings appropriate to the application.
Start-up after Extended Shutdown
1. Inspect all equipment to see that it is in satisfactory
operating condition.
2. Open the compressor suction and discharge valves until
backseated. Always replace valve seal caps.
3. Open the manual liquid line shutoff valves.
4. Check circuit breakers. They must be in the “off” position.
5. Check to see that the pumpdown switch(es) PS1 and PS2
are in the “manual shutdown” position and the control system
switch S1 is in the “off” position.
6. Throw the main power and control circuit disconnects to the
“on” position.
7. Allow the crankcase heaters to operate for at least 12 hours
prior to start-up.