Goodman AGZ 030C Installation Manual
Installation, Operating and Maintenance Manual
Optional Pump Packages for
AGZ 030C – AGZ 190C
IOMM AGZ-C
PUMP PACKAGE
SUPPLEMENT
Group: Chiller
Part Number: 331975401
Date: August 2009
Supersedes: New
Table of Contents
Introduction........................................3
General Description................................... 3
Inspection .................................................. 3
Installation .........................................3
Field Water Piping..................................... 3
System Water Volume ............................... 4
Freeze Protection....................................... 4
Weights & Vibration Isolators ................... 4
Pump Control ............................................ 8
Freeze Protection....................................... 8
Triple-Duty Valve ............................10
Component Location........................16
Dimensions ......................................18
Pump Curves....................................23
Manufactured in an ISO Certified Facility
HAZARD IDENTIFICATION INFORMATION
Wiring Diagrams..............................33
Electrical Data..................................36
Sequence of Operation
S
tart-up.............................................56
.....................55
System Maintenance........................56
Lubrication.............................................. 56
Electrical Terminals................................. 56
Preventative Maintenance Schedule ....... 57
Warranty Statement..........................57
Service
.............................................57
!
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.
©2008 McQuay International. Illustrations and data cover the McQuay International product at the time
of publication and we reserve the right to make changes in design and construction at anytime without
notice. ™® The following are trademarks or registered trademarks of their respective companies:
FanTrol, MicroTech II, Open Choices, and SpeedTrol from McQuay International.
2 IOMM AGZC Pump Pkg
Introduction
General Description
This manual provides additional information on optional pump packages, factory mounted on McQuay
Model AGZ-C scroll-compressor chillers. Follow the directions in the chiller installation and
operating manuals, IMM AGZC and OM AGZC, for installation and operation of the entire unit.
Inspection
When the equipment is received, carefully check all items against the bill of lading to check for a
complete shipment. Check all units for damage upon arrival. All shipping damage must be reported
to the carrier and a claim must be filed with the carrier. Check the unit’s serial plate 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 McQuay International.
Installation
Installation and maintenance are to be performed only by qualified personnel who are familiar with
local codes and regulations, and experienced with this type of equipment.
Follow the directions in IMM AGZC for installation of the unit. The addition of the optional pump
package does not change installation procedure. However, vibration isolator selection and location,
unit weights, dimensions and electrical data will differ from units without a pump package.
Field Water Piping
Due to the variety of piping practices, follow the recommendations of local authorities. They can
supply the installer with the proper building and safety codes required for a proper installation.
Design the piping with a minimum number of bends and changes in elevation to keep system cost
down and performance up. It should contain:
1. Vibration eliminators to reduce vibration and noise transmission to the building.
2. Shutoff valves to isolate the unit from the piping system during unit servicing. The pump
package has suction and discharge service shutoff valves for each pump.
3. Manual or automatic air vent valves at the high points of the system and drains at the low
parts in the system. The evaporator should not be the highest point in the piping system.
4. Some means of maintaining adequate system water pressure (i.e., expansion tank or
regulating valve).
5. Water temperature and pressure indicators located at the unit to aid in unit servicing.
6. A strainer to is provided in the package to remove foreign matter from the water before it
enters the pump and chiller. The use of a strainer will prolong pump life and help maintain
high system performance levels. The strainer must be cleaned after system flushing is
completed.
7. Any water piping to the unit must be protected to prevent freeze-up if below freezing
temperatures are expected.
8. If the unit is used with a replacement chiller on a previously existing piping system, flush
the system thoroughly prior to unit installation.
Make a preliminary leak check prior to insulating the water piping and filling the system.
Include a vapor barrier with the piping insulation to prevent moisture condensation and
possible damage to the building structure. It is important to have the vapor barrier on the
outside of the insulation to prevent condensation within the insulation on the cold surface of
the pipe.
IOMM AGZC Pump Pkg 3
System Water Volume
It is important to have adequate water volume in the system to provide an opportunity for
the chiller to sense a load change, adjust to the change and stabilize. As the expected load
change becomes more rapid, a greater water volume is needed. The system water volume is
the total amount of water in the evaporator, air handling products and associated piping. If
the water volume is too low, operational problems can occur including rapid compressor
cycling, rapid loading and unloading of compressors, erratic refrigerant flow in the chiller,
improper motor cooling, shortened equipment life and other undesirable occurrences.
For normal comfort cooling applications where the cooling load changes relatively slowly,
we recommend a minimum system volume in gallons of 2 to 3 times the flow rate (gpm).
For example, if the design chiller flow rate is 350 gpm, we recommend a minimum system
volume of 700 to 1050 gallons.
Since there are many other factors that can influence performance, systems can successfully
operate below these suggestions. However, as the water volume decreases below these
suggestions, the possibility of problems increases.
Freeze Protection
In installations where the unit is subject to sub-freezing temperatures, some method of
preventing pipe and component freezing and subsequent damage must be employed. The
pump package has an outdoor air thermostat (TH1) that will start the pump at 40F to help
prevent freeze up. It is recommended that one or more of the following strategies also be
employed:
If chilled water circulation is not possible or desired, one or more of the following
procedures must be used.
1. Drain the outdoor portion of the system and cap with a nitrogen charge.
2. Heat trace all outdoor components.
3. Add sufficient anti-freeze to prevent freezing.
Adding of a concentration of a glycol anti-freeze with a freeze point 10 degrees F below the
lowest expected outdoor temperature will result in decreased capacity and increased
pressure drop in the chiller. AGZ units are selected to provide the required capacity with the
fluid specified, water or antifreeze.
Note: Do not use automotive grade antifreezes as it contains inhibitors harmful to chilled
water systems. Use only glycols designated for use in building cooling systems.
Weights & Vibration Isolators
Vibration isolators are recommended for all roof-mounted installations or wherever
vibration transmission is a consideration. If the pump package is installed adjacent to a
chiller that is mounted on springs, it is essential that flexible piping connections be
employed between the two units.
Initially install the unit on shims or blocks at the "free height" of the isolator. When all
piping, wiring, flushing, charging, etc. is complete, adjust the springs upward to load them
and to provide clearance to free the blocks, which are then removed.
Installation of spring isolators requires flexible pipe connections and at least three feet of
conduit flex tie-ins. Support piping and conduit independently from the unit to not stress
connections.
See pages 18 through 22 for the for mounting hole locations.
4 IOMM AGZC Pump Pkg
Table 1, Mounting Weights
2
A
SIZE
030
035
040
045
050
055
060
065
070
075
080
090
100
110
125
130
140
160
180
190
OPERATING.
WEIGHT lbs kg
M1 M2 M3 M4 M5 M6 M7 M8
lbs 4035 1089 1060 956 930
kg 1832 494 481 434 422
lbs 4090 1100 1084 960 946
kg 1857 499 492 436 429
lbs 4205 1123 1112 990 980
kg 1909 510 505 450 445
lbs 4335 1123 1179 992 1041
kg 1968 510 535 450 473
lbs 4465 1179 1190 1043 1053
kg 2027 535 540 474 478
lbs 4405 1176 1214 991 1023
kg 2000 534 551 450 465
lbs 4690 1212 1332 1022 1124
kg 2129 550 605 464 510
lbs 4725 1206 1335 1036 1147
kg 2145 548 606 470 521
lbs 5280 1357 1270 1370 1283
kg 2397 616 577 622 582
lbs 6690 1733 2003 1370 1583
kg 3037 787 910 622 719
lbs 6775 1800 2088 1336 1550
kg 3076 817 948 607 704
lbs 6658 1759 2030 1332 1537
kg 3023 798 922 605 698
lbs 6792 1761 2053 1375 1603
kg 3084 800 932 624 728
lbs 8650 1405 1551 1370 1513 1336 1475
kg 3927 638 704 622 687 606 670
lbs 8800 1437 1559 1407 1526 1377 1494
kg 3995 653 708 639 693 625 678
lbs 8945 1479 1627 1420 1562 1361 1497
kg 4061 672 739 645 709 618 679
lbs 13062 1613 1664 1610 1660 1605 1656 1602 1652
kg 5930 732 756 731 754 729 752 727 750
lbs 13092 1594 1604 1617 1627 1645 1655 1670 1680
kg 5944 724 728 734 739 747 751 758 763
lbs 13213 1616 1647 1628 1660 1643 1675 1656 1688
kg 5999 734 748 739 753 746 760 752 766
lbs 14834 1793 1835 1814 1857 1851 1894 1873 1917
kg 6735 814 833 824 843 840 860 850 870
MOUNTING WEIGHTS, LBS KG AGZ-C
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
RP-4, Rubber-in-Shear Isolator Dimension C2PE, Spring Isolator Dimensions
6.25
3.87
.56 TYP.
5.00
3.75
3.00
R4
VM&C
ø .500-13NC-2B
VM&C
R.28
TYP.
4.63
N/A N/A
N/A N/A
N/A N/A
R4
RECESSED
GRIP RIBS
DURULENE
MATERIAL
NOTES:
MOUNT MATERIAL TO BE DURULENE RUBBER.1.
MOLDED STEEL AND ELASTOMER MOUNT FOR
.
OUTDOOR SERVICE CONDITIONS.
3. RP-4 MOUNT VERSION WITH STUD IN PLACE.
DRAWING NUMBER 3314814
ALL DIMENSIONS ARE IN DECIMAL INCHES
R.250 TYP.
R.750 TYP.
1.13 ± .25
PPROX.
.38
RAISED GRIP RIBS
1.63
IOMM AGZC Pump Pkg 5
Rubber-In- Shear Isolators
Table 2, Rubber-in-Shear Isolator Locations, Aluminum Fin
Mounting hole location dimensions are on the unit dimension drawings beginning on page 18. The
isolator selections are different for AGZ units with pump packages than those without.
AGZ-C
Size
030, 035, 040
045. 050, 055
060, 065, 070
075, 080, 090
100
110, 125, 130
140, 160, 180
190
M1 M2 M3 M4 M5 M6 M7 M8
RP-4 RP-4 RP-4 RP-4
Brown Brown Brown Brown
RP-4 RP-4 RP-4 RP-4
Brick
Red
RP-4 RP-4 RP-4 RP-4 RP-4 RP-4
Brick
Red
RP-4 RP-4 RP-4 RP-4 RP-4 RP-4 RP-4 RP-4
Brick
Red
Brick
Red
Brick
Red
Brick
Red
RUBBER-IN-SHEAR ISOLATORS
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Table 3, Rubber-in-Shear Isolator Locations, Copper Fin
Mounting hole location dimensions are on the unit dimension drawings beginning on page 18. The
isolator selections are different for AGZ units with pump packages than those without.
AGZ-C
Size
030, 035, 040
045, 050
055, 060, 065
070
075, 080, 090
100
110, 125, 130
140, 160, 180
190
M1 M2 M3 M4 M5 M6 M7 M8
RP-4 RP-4 RP-4 RP-4
Brown Brown Brown Brown
RP-4 RP-4 RP-4 RP-4
Brick
Red
RP-4 RP-4 RP-4 RP-4
Lime Lime Lime Lime
RP-4 RP-4 RP-4 RP-4 RP-4 RP-4
Brick
Red
RP-4 RP-4 RP-4 RP-4 RP-4 RP-4 RP-4 RP-4
Brick
Red
RP-4 RP-4 RP-4 RP-4 RP-4 RP-4 RP-4 RP-4
Lime Lime Lime Lime Lime Lime Lime Lime
Brick
Red
Brick
Red
Brick
Red
RUBBER-IN-SHEAR ISOLATORS
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
Brick
Red
KIT
NUMBERS
332325107
332325108
332325109
332325110
KIT
NUMBERS
332325107
332325108
332325111
332325109
332325110
332325112
6 IOMM AGZC Pump Pkg
Spring Isolators
Table 4, Spring Isolator Locations, Aluminum Fin
Mounting hole dimensions are on the unit dimension drawings beginning on page 18. The vibration isolators
are different for AGZ units with pump packages than those without. All isolators have two springs per housing
(C2PE).
AGZ-C
Size
030, 035, 040
045, 050, 055
060, 065, 070
075, 080, 090
100
110, 125, 130
140, 160, 180
190
M1 M2 M3 M4 M5 M6 M7 M8
1D-1350 1D-1350 1D-1350 1D-1350
Purple Purple Purple Purple
1D-1800 1D-1800 1D-1800 1D-1800
Green Green Green Green
1D-2400 1D-2400 1D-1800 1D-1800
Gray Gray Green Green
1D-1800 1D-1800 1D-1800 1D-1800 1D-1800 1D-1800
Green Green Green Green Green Green
1D-2400 1D-2400 1D-2400 1D-2400 1D-2400 1D-2400 1D-2400 1D-2400
Gray Gray Gray Gray Gray Gray Gray Gray
SPRING-FLEX ISOLATORS
NUMBERS
332320116
332320117
332320118
332320119
332320120
KIT
Table 5, Spring Isolator Locations, Copper Fin
Mounting hole dimensions are on the unit dimension drawings beginning on page 18. The vibration isolators
are different for AGZ units with pump packages than those without. All isolators have two springs per housing
(C2PE).
AGZ-C
Size
030, 035, 040
045, 050, 055
060, 065, 070
075, 080, 090
100
110, 125, 130
140, 160, 180
190
M1 M2 M3 M4 M5 M6 M7 M8
1D-1350 1D-1350 1D-1350 1D-1350
Purple Purple Purple Purple
1D-1800 1D-1800 1D-1800 1D-1800
Green Green Green Green
1D-2720 1D-2720 1D-2720 1D-2720
White White Gray Gray
1D-2720 1D-2720 1D-2720 1D-2720 1D-2720 1D-2720
Gray Gray Gray Gray Gray Gray
1D-2720 1D-2720 1D-2720 1D-2720 1D-2720 1D-2720 1D-2720 1D-2720
Gray Gray Gray Gray Gray Gray Gray Gray
SPRING-FLEX ISOLATORS
NUMBERS
332320116
332320117
332320121
332320122
332320120
KIT
IOMM AGZC Pump Pkg 7
Pump Control
There are three possible pump control arrangements:
1. Single Pump/Single Control; the standard single digital output from the chiller’s
microprocessor control starts and stops the pump.
2. Dual Pump/Single Control; the standard single digital output controls the pumps. Pump
operation is automatically selected by an alternating relay arrangement. The panel has a
selector switch allowing selection of pump A, pump B, or automatic (using relays).
3. Dual Pump/Dual Control; an optional second chiller digital output must be supplied and
operation of the pumps is controlled by settings in the microprocessor as follows:
The pump output used is determined by the Evap Pump Control setpoint. This setting
allows the following configurations:
#A only – Pump A will always be used
#B only – Pump B will always be used
Auto – The primary pump is the one with the least run hours, the other is used as a
backup
#A Primary – Pump A is used normally, with pump B as a backup
#B Primary – Pump B is used normally, with pump A as a backup
Primary/Standby Pump Staging
The pump designated as primary will start first. If the evaporator state is START for a
time greater than the RECIRCULATE TIMEOUT setpoint and there is no flow, then the
primary pump will shut off and the standby pump will start. When the evaporator is in
the RUN state, if flow is lost for more than half of the FLOW PROOF setpoint value,
the primary pump will shut off and the standby pump will start. Once the standby pump
is started, the FLOW LOSS alarm logic will apply if flow cannot be established in the
evaporator START state, or if flow is lost in the EVAPORATOR RUN state.
Auto Control
If AUTO pump control is selected, the primary/standby logic above is still used. When
the evaporator is not in the RUN state, the run hours of the pumps will be compared.
The pump with the least hours will be designated as the primary at this time.
Freeze Protection
In installations where the unit is subject to sub-freezing temperatures, some method of
preventing pipe and component freezing and subsequent damage must be employed.
The pump package has an outdoor air thermostat (TH1) that will start the pump at 40F
to help prevent freeze up.
If the chiller is valved out of the building circulation system during freezing
temperatures, a valved bypass must be installed between the supply and return lines, on
the pump side of the chiller isolation valves.
If operation of the chilled water pump during freezing weather is not desired, one or
more of the following strategies must be employed:
4. Drain the portion of the system subject to freezing and cap with a nitrogen charge.
If the system will be drained, the pump(s) and the interconnecting piping also have
to be drained. A drain plug is provided at the very bottom of the pump housing and
at the bottom of the evaporator barrel or package piping. Open the appropriate
vents to assist in draining. A nitrogen head is recommended to decrease corrosion
in the drained portion of the piping
8 IOMM AGZC Pump Pkg
5. Heat trace all outdoor piping and components. If the system is to have field-installed
heat tracing, the factory pipe insulation will have to be removed and replaced after the
installation of the tracing.
6. Add sufficient anti-freeze to prevent freezing. If an anti-freeze solution is to be used,
additional anti-freeze must be added to protect the water in the pump package.
Adding of a concentration of a glycol anti-freeze with a freeze point 10 degrees F below
the lowest expected outdoor temperature will result in decreased capacity and increased
pressure drop in the chiller. AGZ units can be selected to provide the required capacity
with the fluid specified, water or antifreeze.
Note: Do not use automotive grade antifreezes as they contain inhibitors harmful to
chilled water systems. Use only glycols specifically designated for use in building
cooling systems.
IOMM AGZC Pump Pkg 9
Triple-Duty Valve
10 IOMM AGZC Pump Pkg
IOMM AGZC Pump Pkg 11
12 IOMM AGZC Pump Pkg
IOMM AGZC Pump Pkg 13
14 IOMM AGZC Pump Pkg
IOMM AGZC Pump Pkg 15
Component Location
Table 6 ,Standard Pump Package Components
Commponent AGZ 030-070 AGZ 075-130 AGZ 140-190
Strainer Y Strainer w/ B-D Valve Inlet Guide Inlet Guide (1)
Suction S-O Valve 1 per Pump 1 per Pump 1 per Pump
Discharge Check 1 per Pump 1 per Pump 1 per Pump
Discharge S-O Valve 1 per Pump 1 per Pump 1 per Pump
Flow Switch 1 per Unit 1 per Unit 1 per Unit
Triple-Duty Valve 1 per Unit 1 per Unit 1 per Unit
Pump(s) 1 or 2 1 or 2 1 or 2
Control Panel Mounted on the pump package base, not shown below for clarity.
NOTES:
1. Field Installed
2. All cold surfaces are insulated.
Figure 1, Standard Components, AGZ 110C to 130C, Dual Pumps
Control panel not shown for clarity.
To Evaporator
(Factory)
From Evaporator
(Factory)
Flow Switch
Discharge Check
Pumps
Triple Duty Valve
Discharge S O
Valves (2)
Suction S O
Valves (2)
Inlet Guide
(Strainer)
System Inlet Conn.
System Outlet Conn.
BACK OF
UNIT
16 IOMM AGZC Pump Pkg
Figure 2, Standard Components, AGZ 030C to 070C, Dual Pumps
(2)
Control panel not shown for clarity.
Pumps
System Inlet
System Outlet
Triple-Duty
Outlet Valve
LEFT SIDE
Of UNIT
Discharge Check Valves
Y- St r ai n e r
Flow Switch
Figure 3, Standard Components, AGZ 030C to 070C, Single Pump
Control panel not shown for clarity.
Shut-Off
Va l ve s
To Evaporator
From
Evaporator
System Inlet
System Outlet
Triple-Duty
Outlet Valve
LEFT SIDE
Of UNIT
Shut Off Valve
Pump
To Evaporator
From
Evaporator
Y- St r ai n e r
Flow Switch
IOMM AGZC Pump Pkg 17
Dimensions
Figure 4, AGZ 030C to 070C Dimensions with Pump Package
ISOLATOR MOUNTING HOLE LOCATIONS ON BOTTOM SURFACE OF UNIT BASE
13.3
L3
67.8
COMPRESSOR
CIRCUIT #2
M1M3
13.3
L1
2.0
COMPRESSOR
CIRCUIT #1
2.0
NOTE:
1. DUE TO VARIATIONS IN PUMP SIZES, OPERATING WEIGHT WITH WATER IS
APPROXIMATE AND MAY INCREASE UP TO 5%
CG
EVAP
D
B
L2
M2M4
POWER
3.4
CONNECTIONS
OPPOSITE SIDE
OF CONTROL BOX
5.0
2.0
4.0
18.0
FIELD CONTROL
CONNECTION
POWER ENTRY POINT
.875 KNOCK OUTS
FRONT OR SIDE
CONTROL BOX WIDTH
CONTROL
PAN EL
2.5
2.5
8.0
REF.
94.9
100.2
CG
40.7
Y
L1
19.9
L2
Z
43.7
PUMP
COMTROL
PAN EL
88.0
6.4
14.4
X
ALL DIMENSIONS ARE IN DECIMAL INCHES
SCALE
*331779021001*
NONE
43.7
L4
EVAP PIPING
CONNECTIONS
EVAP WATER
INLET
A
C
19.9
EVAP WATER
L3
L4
OUTLET
94.3
NOTES:
1. The dimension drawing depicts the dual-pump option; a single pump is also available. Water connections are
in the same location with either arrangement.
2. See following page for additional dimensions and pump information.
3. Due to variations in pump sizes, operating weight with water is approximate, and may increase up to 5%. The
mounting weights are shown on page 5.
AGZ-C, 4-FAN UNIT, WEIGHTS AND CG (with PUMPS)
AGZ-C
MODEL
030C 43.4 37.8 45.0 4020 4035 1101 1072 936 911
035C 43.7 37.7 44.9 4070 4090 1112 1095 939 925
040C 43.8 37.9 45.0 4185 4205 1134 1122 970 959
045C 45.1 40.0 45.1 4310 4335 1133 1189 971 1018
050C 44.2 38.7 45.1 4435 4465 1187 1198 1020 1030
055C 44.7 38.8 44.3 4375 4405 1191 1229 962 993
060C 46.1 38.2 44.3 4640 4690 1222 1343 989 1087
065C 46.2 38.2 44.6 4670 4725 1213 1342 1004 1111
070C 42.6 36.6 47.3 5225 5280 1341 1255 1358 1271
CG LOCATION (in.) LIFTING WEIGHT BY CORNER (lbs))
X Y Z
SHIPPING
WEIGHT (lbs)
OPERATING
WEIGHT (lbs)
L1 L2 L3 L4
18 IOMM AGZC Pump Pkg
Loading...