Daikin Templifier TGZ Instruction Manual

Installation and Maintenance Manual
Templier®
Heat Recovery Water Heaters
Model TGZ, B Vintage
600 to 3100 MBH
HFC-134a Refrigerant
60/50 Hz
IM 1137-4
Group: Chiller
Part Number: IM1137-4
Date: June 2018
Supersedes: July 2017

IM 1137-4 • TEMPLIFIER®MODEL TGZ 2 www.DaikinApplied.com
Table of ConTenTs
Manufactured in an ISO 9001 & ISO 14001 certied facility
©2018 Daikin Applied. Illustrations and data cover the Daikin Applied product at the time of publication and we reserve the right to
make changes in design and construction at any time without notice.
Table of ConTenTs
Introduction..................................5
Installation...................................6
Piping Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Pressure Drop Data ..........................16
Dimensional Drawings........................19
Physical Data ...............................25
Eletrical Data................................29
Start-Up and Shutdown .......................39
System Maintenance .........................42

Cut Here 
©2018 Daikin Applied Form SF-18002 7 June 2018
Pre-Start Checklist –Scroll Compressor Chillers
Must be completed, signed, and provided to Daikin Applied at least 2 weeks prior to requested start date.
Job Name
Installation Location
Customer Order Number
Model Number(s)
G.O. Number(s)
Chilled Water
Yes
No
N/A
Initials
Piping Complete
Water strainer installed on evaporator entering chilled water piping per IM
Water System filled, flushed and vented
Pumps installed and operational (rotation checked, strainers cleaned)
Controls operational (3-way valves, face/bypass dampers, bypass valves, etc.)
Water system operated and tested; flow meets unit design requirements
Flow switch installed and wired
Vent installed on evaporator
Glycol at design %
Electrical
Yes
No
N/A
Initials
Building controls operational
*Power leads connected to power block or optional disconnect
Power leads have been checked for proper phasing and voltage
All interlock wiring complete and compliant with Daikin specifications
Power applied at least 12 hours before startup
Oil heaters energized at least 12 hours before startup
Chiller components (EXV Sensors Transducers) installed and wired properly.
*Wiring complies with National Electrical Code and local codes (See Notes)
Remote EXV wired with shielded cable
Miscellaneous
Yes
No
N/A
Initials
Unit control switches all off
Remote Evaporator / Condenser Piping factory reviewed
All refrigerant components/piping leak tested, evacuated and charged
Thermometers, wells, gauges, control, etc., installed
Minimum system load of 80% capacity available for testing/adjusting controls
Document Attached: Technical Breakdown from Selection Software
Document Attached: Final Order Acknowledgement
Document Attached: Remote piping approval
Notes: The most common problems delaying start-up and affecting unit reliability are:
1. Field installed compressor motor power supply leads too small. Questions: Contact the local Daikin sales representative*. State size, number and
type of conductors and conduits installed:
a. From Power supply to chiller
* Refer to NFPA 70-2017, Article 440.35
2. Remote Evaporator piping incomplete or incorrect. Provide approved piping diagrams.
3. Items on this list incorrectly acknowledged resulting in delayed start and possible extra expenses incurred by return trips.
Contractor Representative
Daikin Applied Sales Representative
Signed:
Signed:
Name:
Name:
Company:
Company:
Date:
Date:
Phone/Email:
Phone/Email:

InTroduCTIon
www.DaikinApplied.com 5 IM 1137-4 • TEMPLIFIER®MODEL TGZ
This manual provides installation, operation, and maintenance information for the Daikin TGZ Templier®Heat Recovery Scroll
Water Heater with the MicroTech®II controller. Complete operating and maintenance information is in OMM 1136.
NOTE: Installation and maintenance are to be performed only by qualied personnel who are familiar with local codes and
regulations, and experienced with this type of equpuipment.
WARNING
Electric shock hazard. Improper handling of this equipment can cause personal injury or equipment damage. This equipment must
be properly grounded. Connections to and service of the MicroTech®II control panel must be performed only by personnel that are
knowledgeable in the operation of the equipment being controlled.
CAUTION
Static sensitive components. A static discharge while handling electronic circuit boards can cause damage to the components.
Discharge any static electrical charge by touching the bare metal inside the control panel before performing any service work.
Never unplug any cables, circuit board terminal blocks, or power plugs while power is applied to the panel.
CAUTION
When moving refrigerant to/from the chiller from an auxiliary tank, a grounding strap must be used. An electrical charge builds
when halo-carbon refrigerant travels in a rubber hose. A grounding strap must be used between the auxiliary refrigerant tank and
the chiller’s end sheet (earth ground), which will safely take the charge to the ground. Damage to sensitive electronic components
could occur if this procedure is not followed.
HAZARD IDENTIFICATION INFORMATION
DANGER
Dangers indicate a hazardous situation, which will result in death or serious injury if not avoided.
WARNING
Warnings indicate potentially hazardous situations, which can result in property damage, severe personal injury, or death if not
avoided.
CAUTION
Cautions indicate potentially hazardous situations, which can result in personal injury or equipment damage if not avoided.
General Description
Daikin TGZ water heaters are scroll compressor refrigeration units that recover heat from warm uid streams in the evaporator and
deliver hot water, at a useful temperature, from the condenser to a heating load. They are designed for indoor installations only and
are completely assembled, wired, charged and tested. Each unit consists of four or six (depending on unit size) scroll compressors,
evaporator (brazed-plate on models 040 through 120 and shell-and-tube evaporators on models 150 to 190), shell-and-tube
condenser/heater, and complete refrigerant piping.
There are two refrigerant circuits, each with manual liquid line shutoff valves, charging valves, lter-driers, liquid line solenoid
valves, sight glass/moisture indicators, and expansion valves. The electrical control center includes a MicroTech II® control system
and other components necessary for dependable automatic operation.
NOMENCLATURE
T G Z 100 B
Templier
Global
Scroll Compressor
Vintage
Nominal Cooling Tons

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Inspection
When the equipment is received, all items should be carefully
checked against the bill of lading to provide a complete
shipment. All units must be carefully inspected for damage
upon arrival. All shipping damage must be reported to the
carrier and a claim must be led with the carrier. The unit serial
number plate should be checked before unloading the unit to
be sure that it agrees with the power supply available. Physical
damage to unit after acceptance is not the responsibility of
Daikin Applied.
NOTE: Unit shipping and operating weights are given in the
Physical Data Tables beginning on page 25
Handling
Every model TGZ water heater is shipped with a full refrigerant
charge that is isolated in the condenser by the manual
condenser liquid valve and the compressor discharge service
valve.
If the unit has been damaged, allowing the refrigerant to
escape, there can be danger of suffocation in the equipment
area since the refrigerant will displace the air. Be sure to
review Environmental Protection Agency (EPA) requirements
if damage has occurred. Avoid exposing an open ame to the
refrigerant.
The skid option is strongly recommended for ease of handling
and to help prevent damage during installation.
WARNING
Avoid contact with sharp edges. Personal injury can result.
Improper riggin, lifting, or moving of a unit can result in property
damage, severe personal injury or death. Follow rigging and
moving instructions carefully. Do not stand beneath the unit
while it is lifted or being istalled.
Figure 1: Lifting the Unit
It is recommended that all moving and handling be performed
with skids under the unit when possible and that the skids not
be removed until the unit is in the nal location. When moving
the unit, dollies or simple rollers can be used under the skids.
Never put the weight of the unit against the control box.
When moving, only apply pressure to the base on the skids,
and not to the piping or shells. Avoid dropping the unit at the
end of the roll.
If the unit must be hoisted, it is necessary to lift the unit by
attaching cables or chains at the lifting holes located on the
disposable lifting bars. Spreader bars must be used to protect
the control cabinet and other areas of the unit. See Figure 1.
Do not attach slings to piping or equipment. Move unit in the
upright horizontal position at all times. Set unit down gently
when lowering from the trucks or rollers. See Table 12 on page
24 for total and point weights.
Location
The unit is designed for indoor application and must have
equipment room temperature for operating and standby
conditions between 40°F to 122°F (4.4°C to 50°C).
Because of the electronic control devices, the units should not
be exposed to the weather. A plastic cover over the control
box is supplied as temporary protection during shipment. A
reasonably level and sufciently strong oor is required for
the unit. If necessary, additional structural members should
be provided to transfer the weight of the unit to the nearest
beams.
NOTE: Unit shipping and operating weights are available in
the weights section starting in Table 12 on page 24
Placing the Unit
The small amount of vibration normally encountered with the
water chiller makes this unit particularly desirable for basement
or ground oor installations where the unit can be mounted
directly to the oor. The oor construction should be such that
the unit will not affect the building structure nor will it transmit
noise and vibration into the structure.
Vibration Isolators
It is recommended that isolators be used on all upper level
installations or in areas where vibration transmission is a
consideration.
Figure 2: Isolator Locations
NOTE: Representative model for isolator location numbering
only; ordered unit conguration may be different than
shown.

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Once the unit has been located, set the unit in place and level
with a spirit level. When spring-type isolators are required,
install springs running under the main unit supports.
The unit should be set initially on shims or blocks at the listed
spring free height. When all piping, wiring, ushing, charging,
etc., is completed, the springs are adjusted upward to loosen
the blocks or shims that are then removed. Refer to Table 12
on page 24 for correct lifting and mounting locations.
Installation of spring isolators requires exible piping
connections and at least three feet of exible electrical conduit
to avoid straining the piping and transmitting vibration and
noise.
A rubber anti-skid pad should be used under isolators if hold-
down bolts are not used.
Table 1: Vibration Mounting Location and Kit Number

IM 1137-4 • TEMPLIFIER®MODEL TGZ 8 www.DaikinApplied.com
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NOTE: Refer to Figure 2 on page 6 for locating isolators.
NOTE: For spring-ex mountings, CP2E have two springs per isolator housing, CP1E have one spring per housing.
Figure 3: Spring Flex Mounting (CP-1) Isolator Dimensions
Figure 4: Spring Flex Mounting (CP-2) Isolator Dimensions
Figure 5: Rubber-in-Shear Mounting (RP-3) Isolator
Dimensions
Figure 6: Rubber-in-Sheer Mounting (RP-4) Isolater
Dimensions

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www.DaikinApplied.com 9 IM 1137-4 • TEMPLIFIER®MODEL TGZ
Chilled Water Piping
CAUTION
To prevent damage to the evaporator and potential chiller
failure, a supply strainer is required in the inlet water piping
which connects to this evaporator. This strainer must be
installed prior to operation of the chilled liquid pumps.
NOTE: Since the Templier evaporator and/or condenser
may have to be valved off for cleaning or repair, it
may be desirable to pipe a bypass around them
so that system source and hot water ow is not
interrupted.
Field installed water piping to the chiller must include:
• A cleanable strainer installed at the water inlet to the
evaporator to remove debris and impurities before they
reach the evaporator. Install cleanable strainer within
5 feet (1500 mm) of pipe length from the evaporator
inlet connection and downstream of any welded
connections (no welded connections between strainer
and evaporator).
• TGZ models require a strainer with perforations no larger
than 0.062” (1.6 mm) diameter. See the Inlet Strainer
Guidelines on Table 2 on page 11 for more information.
• A water ow switch must be installed in the horizontal
piping of the supply (evaporator outlet) water line to avoid
evaporator freeze-up under low or no ow conditions. The
ow switch may be ordered as a factory-installed option,
a eld-installed kit, or may be supplied and installed in the
eld.
• Piping for units with brazed-plate evaporators must have
a drain and vent connection provided in the bottom of
the lower connection pipe and to the top of the upper
connection pipe, respectively. See Figure 7. These
evaporators do not have drain or vent connections due to
their construction.
• Purge air from the water system before unit start-up to
provide adequate ow through the evaporator.
• Adequate piping support, independent from the unit,
to eliminate weight and strain on the ttings and
connections.
It is recommended that the eld installed water piping to the
chiller include:
• Thermometers at the inlet and outlet connections of the
evaporator.
• Water pressure gauge connection taps and gauges at
the inlet and outlet connections of the evaporator for
measuring water pressure drop.
• Shutoff valves are necessary to isolate the unit from the
piping during unit servicing.
• Minimum bends and changes in elevation to minimize
pressure drop.
• An expansion tank and regulating valve to maintain
adequate water pressure. Tank becomes required
for closed loop systems based on water volume and
temperature ranges.
• Vibration eliminators in both the supply and return water
lines to reduce transmissions to the building.
• Flush the system water piping thoroughly before making
connections to the unit evaporator.
• Piping insulation, including a vapor barrier, helps prevent
condensation and reduces heat loss.
• Regular water analysis and chemical water treatment
for the evaporator loop is recommended immediately at
equipment start-up.
Figure 7: Typical Piping for Brazed-Plate Evaporator
Air
Vent
Flow
Switch
Vibration
Eliminators
Drain
Outlet
Inlet
P
Isolation
Valves
Strainer
WELDED PIPE CONNECTIONS ARE NOT ALLOWED
BETWEEN THE STRAINER AND EVAPORATOR DUE
TO THE CHANCE OF SLAG ENTERING THE EVAPORATOR

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Figure 8: Typical Piping for Shell and Tube Evaporator
Groove Coupling / Flow Switch Warning
All evaporators and condensers have OGS-type grooved water
connections (adhering to Standard AWWA C606) or optional
ange connections. The installing contractor must provide
matching mechanical connections. PVC piping should not be
used.
On units utilizing shell-and-tube evaporator vessels and
factory-mounted ow switches and ange connections (groove-
to-ange adaptors or weld-on anges), relocating the ow
switch is required to allow for possible future replacement. The
ange will interfere with unscrewing the switch. The following
procedure is recommended before installing a ange to avoid
interference:
1.Remove the ow switch and plug the switch opening in the
nozzle.
2.Install the groove-to-ange adaptor or weld on ange.
3.Relocate the ow switch in the water piping outside the
ange close enough to it that the wire leads will reach and the
switch can still be unscrewed.
Source Water Piping
The system water piping must be ushed thoroughly prior to
making connections to the unit evaporator. Lay out the water
piping so the source water circulating pump discharges into the
evaporator inlet.
CAUTION
A cleanable strainer must be placed in the water lines at the
water inlet to the evaporator to remove debris and impurities
before they reach the evaporator. Failure to do so will cause
damage to the equipment. Please refer to Table 2 on page
11 for model-specic diameter sizes.
CAUTION
Templier Models TGZ 040 - TGZ 120 must have clean source
water from a closed and treated loop going to the brazed-plate
evaporator. For open water loop applications, an intermediate
heat exchanger between the source water and evaporator is
required. Failure to provide a clean, closed water loop can
cause equipment failure and possible revocation of the unit
warranty.
Templier evaporator water can come from various sources
and care must be exercised to avoid sources that can
cause corrosion, fouling, or accumulation of debris in the
heat exchanger. Borderline cases will require a careful and
rigorously performed maintenance schedule.
Inlet Strainer Guidelines
An inlet water strainer must be installed in the chilled water
piping before the evaporator inlet. Two paths are available to
meet this requirement:
1. A eld-installed kit shipped loose with the unit that consists
of:
• Y-type area strainer with 304 stainless steel perforated
basket, groove pipe connections and strainer cap. Refer
to Table 2
• Extension pipe with two Schrader ttings that can be
used for a pressure gauge and thermal dispersion ow
switch. The pipe provides sufcient clearance from the
evaporator for strainer basket removal.
• ½-inch blowdown valve
• Two grooved clamps
LEAVING FLUID
TEMP. SENSOR
VENT
3/8” PIPE PLUG
VIBRATION
ELIMINATOR
FLOW
SWITCH
GATE
VALV E
FLOW
FLOW
GATE
VALV E
OUTLET
DRAIN
BALANCING
VALV E
VIBRATION
ELIMINATOR
WATER
STRAINER
VALVED
PRESSURE
GAUGE
PROTECT ALL FIELD PIPING
AGAINST FREEZING
INLET
WELDED PIPE CONNECTIONS ARE NOT ALLOWED
BETWEEN THE STRAINER AND EVAPORATOR DUE TO THE
CHANCE OF SLAG ENTERING THE EVAPORATOR

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www.DaikinApplied.com 11 IM 1137-4 • TEMPLIFIER®MODEL TGZ
The strainer is sized per Table 2. Connection sizes are given in
Dimensions beginning on Figure 17 on page 19.
2. A eld-supplied strainer that meets specication and
installation requirements of this manual on www.DaikinApplied.
com.
Table 2: Evaporator Characteristics
Inlet and outlet connections are clearly marked on the unit and
also appear on the dimension drawings, beginning with Figure
17 on page 19. Drain connections should be provided at all
low points in the system to permit complete drainage. Air vents
should be located at the high points in the system to purge out
air. A vent connection, located on top of the evaporator vessel,
permits the purging of air out of the evaporator. Air purged from
the water system prior to unit start-up provides adequate ow
through the vessel and prevents safety cutouts on the freeze
protection. System pressure should be maintained by using a
properly sized expansion tank.
Pressure gauges should be installed in the inlet and outlet
water lines to the evaporator. Pressure drop through the
evaporator should be measured to calculate proper gpm (L/s)
as specied in the Pressure Drop tables starting with Figure 14
on page 16.
Source water piping may have to be insulated (depending on
its temperature) to reduce heat loss and prevent condensation
if cold water is used. If cooling tower water is used, insulation
may not be necessary. Complete unit and system leak tests
should be performed prior to insulating the water piping.
Insulation with a vapor barrier is recommended. If the vessel is
insulated, the vent and drain connections must extend beyond
the proposed insulation thickness for accessibility. If the unit
operates year-round, or if the system is not drained for the
winter, the chilled water piping exposed to outdoor ambient
should be protected against freezing by wrapping the lines with
a heater cable.
Source/Hot Water Thermostat
The source water temperature sensor is factory installed in the
leaving water connection on the evaporator. The controlling hot
water sensor is in the leaving condenser connection. A sensor
is also located in the entering water connection in order to
measure the condenser Delta-T. Care should be taken not to
damage the sensor cable or lead wires when working around
the unit. It is also advisable to check the lead wire before
running the unit to be sure that it is rmly anchored and not
rubbing on the frame or any other component.
If the sensor is ever removed from the well for servicing,
care must be taken as not to wipe off the heat conducting
compound supplied in the well.
The units can be switched from heating to cooling. In the
cooling mode they are controlled by a thermistor in the leaving
evaporator connection, in the heating mode by the leaving
condenser thermistor.
Flow Switch
A water ow switch must be mounted in the evaporator and
condenser leaving water lines to prove adequate water ow
to the vessels before the unit can start. This will safeguard
against slugging the compressors on startup. It also serves to
shut down the unit in the event that water ow is interrupted to
guard against evaporator freeze-up.
A ow switch is available from Daikin Applied (part #
01750330). It is a “paddle” type switch and adaptable to any
pipe size from 1” (25mm) to 6” (152mm) nominal. Certain
minimum ow rates are required to close the switch and are
listed in Table 3. Installation should be as shown on Figure
9. See Figure 28 on page 31 for terminal locations. The
normally open contacts of the ow switch should be wired
between these two terminals. There is also a set of normally
closed contacts on the switch that could be used for an
indicator light or an alarm to indicate when a “no ow” condition
exists.
NOTE: Install per the vendor instructions and calibrate to a
safe setting based on the application design ow.
1. The ow arrow must be pointed in the correct direction.
2. Provide a straight length of pipe before and after the ow
switch of at least ve times the pipe diameter.
3. Trim ow switch paddle if needed to t the pipe diameter.
Make sure paddle does not hang up in pipe.
CAUTION
Make sure the arrow on the side of the switch is pointed in
the direction of ow. Install per manufacturer’s instructions.
Incorrect installation will cause improper operation and
possible evaporator damage.
Table 3: Flow Switch Minimum Flow Rates
Unit Size 040B-120B 150B-190B
Evaporator Brazed Plate Shell-and tube
Materials Stainless Steel, Copper Carbon Steel, Copper
Max Perf. Size No larger than 0.062” dia. No larger than 0.125” dia.
Cleaning Chemical Chemical
Nominal Pipe Size Inches
(mm)
Minium Req’d Flow to Acve Switch
- GPM (l/s)
2 (50.8) 18.8 (1.2)
2 1/2 (63.5) 24.3 (1.5)
3 (76.2) 30.0 (1.9)
4 (101.6) 39.7 (2.5)
5 (127.0) 58.7 (3.7)
6 (152.4) 79.2 (5.0)

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Figure 9: Flow Switch
Figure 10: Flow Switch (view from end of cooler)
Glycol Solutions
The use of glycol in Templier systems is rare, but if used, the
system glycol capacity, glycol solution ow rate in gpm (Lps),
pressure drop through the cooler, and system pressure drop
can be calculated using the following formulas and table.
1. Capacity — Capacity is reduced from that with plain water.
To nd the reduced value multiply the unit’s water system
capacity by the capacity correction factor C, as shown in Table
4 and Table 5, to nd the unit’s capacity in the glycol system.
2. GPM —To determine evaporator gpm (or ΔT) knowing ΔT (or
gpm) and capacity:
3. Pressure Drop — To determine glycol pressure drop through
the cooler, enter the proper water pressure drop curve,
beginning on page 16, at the water ow. Multiply the water
pressure drop found there by P to obtain corrected glycol
pressure drop.
4. To determine glycol system kW, multiply the water system
kW by factor K. Test coolant with a clean, accurate glycol
solution hydrometer to determine the freezing point. Obtain
percent glycol from the freezing point table below.
Daikin Applied encourages a minimum glycol concentration
of 25% be provided on all glycol applications. Glycol
concentrations below 25% have too little inhibitor content for
long-term corrosion protection of ferrous metals.
NOTE: The effect of glycol in the condenser is negligible
and there is no capacity derate. There is a signicant
increase in pressure drop.
Table 4: Ethylene Glycol
Table 5: Propylene Glycol
Table 6: Burst Protection
Freezing Point P (Pressure
Drop)
% Glycol °F °C C (Capacity) K (Power) G (Flow)
20 18 -8 0.982 0.992 1.04 1.129
30 7 -14 0.972 0.986 1.074 1.181
40 -7 -22 0.961 0.976 1.121 1.263
50 -28 -33 0.946 0.966 1.178 1.308
Freezing Point P (Pressure
Drop)
% Glycol °F °C C (Capacity) K (Power) G (Flow)
20 19 -7 0.975 0.985 1.028 1.147
30 9 -13 0.962 0.978 1.05 1.248
40 -5 -21 0.946 0.971 1.078 1.366
50 -27 -33 0.929 0.965 1.116 1.481
Percent Volume Glycol Concentraon Required
Temp F (C) For Burst Protecon
Ethylene Glycol Propylene Glycol
20 (6.7) 11 12
10 (-12.2) 17 20
0 (-17.8) 22 24
-10 (-23.3) 26 28
-20 (-28.9) 30 30
-30 (-34.4) 30 33
-40 (-40.0) 30 35
-50 (-45.6) 30 35
-60 (-51.1) 30 35

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CAUTION
Do not use automotive grade antifreeze. Industrial grade
glycols must be used. Automotive antifreeze contains
inhibitors which will cause plating on the copper within the
unit evaporator. The type and handling of glycol used must be
consistent with local codes.
Condenser Water Piping
Arrange the condenser water so the water enters the bottom
connection of the condenser. The condenser water will
discharge the condenser from the top connection. Failing to
arrange the condenser water as stated above will negatively
affect the capacity and efciency. Note that the condensers are
shipped as either two-pass (10 to 15-degree F Delta-T) or four-
pass (15 to 40-degree F Delta-T). For 2-pass, the connections
are on the vertical centerline of the condenser. For 4-pass, they
are off to one side.
Pressure gauges should be installed in the inlet and outlet
water lines to the condenser. Pressure drop through the
condenser should be measured to determine gpm (L/s)
from pressure drop curves starting on page 16. Vibration
eliminators are recommended in both the supply and return
water lines.
Templier hot water systems usually have a supplementary
heater located after (downstream) of the Templier condenser
to either boost the hot water temperature or to function as a
standby heater.
Care should be exercised to avoid overly warm water coming
back to the Templier from the system and causing a relief
valve discharge. This is true whether the unit is running or off.
Maximum temperature is 160°F.
Some jurisdictions require double heat exchange walls
between refrigerant and potable water. Potable water run
directly through a condenser has only one heat exchange wall
(the condenser tube), and certain jurisdictions may require an
intermediate heat exchanger.
Refrigerant Relief Valve Piping
Relief valves are located in the following location and require
piping per code, usually to the outside of the building. All valve
connections are 5/8-inch are. There is:
• One relief valve in the suction piping of each of two
circuits
• One relief valve on the shell of each of two condenser
circuits
• One additional valve in the discharge piping of circuits
with 30 HP compressors
Table 7: Relief Valve Piping
The current ANSI/ASHRAE Standard 15 species that
pressure relief valves on vessels containing Group 1 refrigerant
(R-134a) “shall discharge to the atmosphere at a location not
less than 15 feet (4.6 meters) above the adjoining ground
level and not less than 20 feet (6.1 meters) from any window,
ventilation opening or exit in any building.” The piping must
be provided with a rain cap at the outside terminating point
and a drain at the low point on the vent piping to prevent
water buildup on the atmospheric side of the relief valve. In
addition, a exible pipe section should be installed in the line to
eliminate any piping stress on the relief valve(s).
The size of the discharge pipe from the pressure relief valve
shall not be less than the size of the pressure relief outlet.
When two or more vessels are piped together, the common
header and piping to the atmosphere shall not be less than
the sum of the area of the relief valve outlets connected to the
header. Fittings should be provided to permit vent piping to be
easily disconnected for inspection or replacement of the relief
valve.
NOTE: Provide adequate ttings in piping to permit repair or
replacement of relief valve.
TGZ Model Size Sucon Line
Total
Cond. Shell
Total
30 HP Disch.
Line Total
Total per
Unit
040B, 050B, 060B,
080B, 100B, 150B 2 2 0 4
110B, 170B 2 2 1 5
120B, 190B 2 2 2 6

IM 1137-4 • TEMPLIFIER®MODEL TGZ 14 www.DaikinApplied.com
InsTallaTIon
Figure 11: Relief Valve Piping
Heating and Cooling Units
Templiers can be arranged and controlled to act as either
a water chiller or a water heater. These systems vary
considerably in the specics of the piping arrangement. Care
must be exercised when changeover occurs to avoid mixing
water streams that could possibly contaminate a water system.
For example, a unit can have chilled water in the evaporator
and tower water in the condenser when in the cooling mode.
Changeover to heating could put tower water through the
evaporator and hot water (possibly potable water) through the
condenser. This could introduce tower water into the chilled
water system and into the hot water system and should be
avoided.
Water Pressure Drop
The vessel ow rates must fall between the minimum and
maximum values shown on the appropriate evaporator and
condenser curves beginning on page 16. Flow rates below
the minimum values shown will result in laminar ow that will
reduce efciency, cause erratic operation of the expansion
valve, and could cause low temperature cutoffs. On the other
hand, ow rates exceeding the maximum values shown can
cause erosion on the evaporator water tubes.
Measure the water pressure drop through the vessels at eld
installed pressure taps. It is important not to include valves or
strainers in these readings.
The condenser ow rate will determine whether 2-pass or
4-pass condensers are used, according toTable 8
Table 8: Condenser Flow Rate
Condenser ∆-T Passes Flow Rate
10 - 15° F 2-Pass High
15 - 40° F 4-Pass Low

PIPIng sChemaTIC
www.DaikinApplied.com 15 IM 1137-4 • TEMPLIFIER®MODEL TGZ
PIPIng sChemaTIC
Figure 12: Piping Schematic, Models TGZ 040 – 120
Figure 13: Piping Schematic, Models TGZ 150 – 190

IM 1137-4 • TEMPLIFIER®MODEL TGZ 16 www.DaikinApplied.com
Pressure droP daTa
Pressure droP daTa
Figure 14: Evaporator Pressure Drop
Table 9: Evaporator Pressure Drop
TGZ040
TGZ040
TGZ050
TGZ050
TGZ060
TGZ060
TGZ080
TGZ080
TGZ100
TGZ100
TGZ110
TGZ110
TGZ120
TGZ120
TGZ150
TGZ150
TGZ170
TGZ170
TGZ190
TGZ190
1
10
100
10 100 1000
Dp (ft)
Flow Rate (gpm)
TGZ040
TGZ050
TGZ060
TGZ080
TGZ100
TGZ110
TGZ120
TGZ150
TGZ170
TGZ190
TGZ Unit Evap
Minimum Flow Rate Nominal Flow Rate Maximum Flow Rate
Inch-Pound S.I. Inch-Pound S.I. Inch-Pound S.I.
gpm DP ft. lps DP kpa gpm DP ft. lps DP kpa gpm DP ft. lps DP kpa
40 AC500DQ-62H 34 1.2 2.1 3.4 72 4.8 4.5 14.4 120 12.7 7.6 37.9
50 AC500DQ-82H 45 1.2 2.8 3.5 100 5.4 6.3 16.1 167 14.3 10.5 42.8
60 AC500DQ-102H 55 1.2 3.5 3.5 121 5.3 7.6 15.8 202 14.0 12.7 42.0
80 AC500DQ-122H 83 1.9 5.2 5.7 162 6.8 10.2 20.3 270 18.0 17.0 53.7
100 AC500DQ-142H 98 2.7 6.2 8.0 189 9.3 11.9 27.8 315 24.6 19.9 73.4
110 AC500DQ-162H 113 2.8 7.1 8.2 218 9.6 13.8 28.7 363 25.3 22.9 75.6
120 AC500DQ-182H 128 3.0 8.1 9.1 246 10.5 15.5 31.4 410 27.7 25.9 82.9
150 EV34191111/9 147 2.4 9.3 7.3 283 8.5 17.9 25.4 472 22.5 29.8 67.2
170 EV34191212/7 169 3.5 10.7 10.5 326 12.2 20.6 36.5 543 32.2 34.3 96.2
190 EV34191212/7 192 4.5 12.1 13.4 369 15.5 23.3 46.3 615 40.9 38.8 122.3

Pressure droP daTa
www.DaikinApplied.com 17 IM 1137-4 • TEMPLIFIER®MODEL TGZ
Figure 15: Standard Four-pass Condenser Pressure Drop
Table 10: Standard Four-pass Condenser Pressure Drop
UNIT
MODEL
COND.
MODEL
Minimum Flow Rate Nominal Flow Rate Maximum Flow Rate
Inch-Pound S.I. Inch-Pound S.I. Inch-Pound S.I.
GPM DP ft lps DP kpa GPM DP ft lps DP kpa GPM DP ft lps DP kpa
TGZ040 C1010-62 23 1.93 1.45 5.77 47 7.5 3.0 22.4 63 13.1 4.0 39.1
TGZ050 C1010-62 32 2.44 2.02 7.29 64 9.1 4.0 27.2 86 16.0 5.4 47.7
TGZ060 C1010-76 38 3.40 2.40 10.16 77 13.0 4.9 38.9 103 22.6 6.5 67.5
TGZ080 C1410-112 51 2.84 3.22 8.49 103 10.8 6.5 32.3 138 18.8 8.7 56.3
TGZ100 C1410-128 60 3.00 3.79 8.97 120 11.2 7.6 33.5 160 19.3 10.1 57.8
TGZ110 C1610-164 69 2.44 4.35 7.29 138 9.1 8.7 27.2 184 15.7 11.6 47.0
TGZ120 C1610-164 78 3.08 4.92 9.21 156 11.5 9.8 34.4 208 19.9 13.1 59.4
TGZ150 C1612-164 90 4.85 5.68 14.50 180 18.1 11.4 54.1 240 31.3 15.1 93.4
TGZ170 C1612-184 103 4.89 6.50 14.60 207 18.4 13.1 55.0 276 31.8 17.4 95.0
TGZ190 C1612-184 117 6.24 7.38 18.66 234 23.3 14.8 69.6 312 40.2 19.7 120.3

IM 1137-4 • TEMPLIFIER®MODEL TGZ 18 www.DaikinApplied.com
Pressure droP daTa
Figure 16: Optional Two-pass Condenser
Table 11: Optional Two-pass Condenser
TGZ UNIT
MODEL
COND.
MODEL
Minimum Flow Rate Nominal Flow Rate Maximum Flow Rate
Inch-Pound S.I. Inch-Pound S.I. Inch-Pound S.I.
GPM DP ft lps DP kpa GPM DP ft lps DP kpa GPM DP ft lps DP kpa
TGZ040 C1010-62 59 1.6 3.7 4.9 94 4.0 5.9 12.0 150 9.8 9.5 29.3
TGZ050 C1010-62 80 2.0 5.0 6.0 128 4.9 8.1 14.6 205 12.0 12.9 35.8
TGZ060 C1010-76 96 2.9 6.1 8.5 154 7.0 9.7 20.9 246 17.0 15.5 51.0
TGZ080 C1410-112 129 2.4 8.1 7.1 206 5.8 13.0 17.3 330 14.2 20.8 42.3
TGZ100 C1410-128 150 2.5 9.5 7.3 240 6.0 15.1 17.9 384 14.7 24.2 43.8
TGZ110 C1610-164 173 2.0 10.9 6.0 276 4.9 17.4 14.6 442 12.0 27.9 35.8
TGZ120 C1610-164 195 2.5 12.3 7.6 312 6.2 19.7 18.5 499 15.1 31.5 45.3
TGZ150 C1612-164 225 3.3 14.2 9.9 360 8.1 22.7 24.2 576 19.8 36.3 59.1
TGZ170 C1612-184 259 3.5 16.3 10.4 414 8.5 26.1 25.4 662 20.8 41.8 62.1
TGZ190 C1612-184 293 4.4 18.5 13.2 468 10.8 29.5 32.3 749 26.4 47.2 78.8

dImensIonal drawIngs
www.DaikinApplied.com 19 IM 1137-4 • TEMPLIFIER®MODEL TGZ
dImensIonal drawIngs
Figure 17: Dimensions, TGZ040B – TGZ060B, Standard 4-pass Condenser
NOTE: See “Weights” on Table 12 on page 24 for lifting and corner weights. Left-hand condenser connections are an
available option.

IM 1137-4 • TEMPLIFIER®MODEL TGZ 20 www.DaikinApplied.com
dImensIonal drawIngs
Figure 18: Dimensions, TGZ080B – TGZ100B, Standard 4-Pass Condenser
NOTE: See “Weights” on Table 12 on page 24 for lifting and corner weights. Left-hand condenser connections are an
available option.