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34

STANDARD OR SINGLE SPEED FAN OPERATION
FAN TYPE = 1SPEED is not used on 50GC units.
2 SPEED FAN OPERATION
The W7220 controller has the capability to work with a system us-

ing a 2 speed supply fan. The W7220 does not control the supply

directly but uses the following input status to determine the speed

of the supply fan and controls the OA damper to the required posi-

tion, see Table 9.

The W (heating mode) is not controlled by the W7220 but it re-

quires the status to know where to position the OA damper for

minimum position for the fan speed.
The 2 speed fan delay is available when the system is programmed

for 2 speed fan (in the System Setup menu item). The 2 speed fan

delay is defaulted to 5 minutes and can be changed in the Ad-

vanced Setup menu item. When the unit has a call for Y1 In and in

the free cooling mode and there is a call for Y2 In, the 2-speed fan

delay starts and the OA damper will modulate 100% open, the

supply fan should be set to high speed by the unit controller. See

Table 10.
After the delay one of two actions will happen:

• The Y2 In call will be satisfied with the damper 100%

open and fan on high speed and the call will turn off

OR
If the call for additional cooling in the space has not been satisfied

then the first stage of mechanical cooling will be enabled through

Y1 Out or Y2 Out.

*With stage 3 delay (STG3 DLY) in Advanced setup, COOL Y2-OUT will be turned ON after the delay time specified.
N/A = Not applicable 

Table 9 — Fan Speed

STATE

FAN SPEED

OCC

Low

Y1

Low

Y2

High

W

High

Table 10 —  Economizer Operation - FAN TYPE = 2SPEED

INPUTS

OUTPUTS

DEMAND 

CONTROLLED 

VENTILATION 

(DCV)

OUTSIDE AIR 

GOOD TO 

ECONOMIZE

W

(HEAT ON)

COOL

Y1-IN

COOL

Y2-IN

COOL 

Y1-OUT

COOL 

Y2-OUT

FAN SPEED

(reference 

only)

DAMPER POSITION

OCCUPIED

UNOCCUPIED

NONE

NO

ON

N/A

N/A

OFF

OFF

HIGH

MIN POS H

Closed

OFF

OFF

OFF

OFF

OFF

LOW

MIN POS L

Closed

OFF

ON

OFF

ON

OFF

LOW

MIN POS L

Closed

OFF

ON

ON

ON

ON

HIGH

MIN POS H

Closed

YES

ON

N/A

N/A

OFF

OFF

HIGH

MIN POS H

Closed

OFF

OFF

OFF

OFF

OFF

LOW

MIN POS L

Closed

OFF

ON

OFF

OFF

OFF

LOW

MIN POS L to

Full Open

Closed to

Full Open

OFF

ON

ON

ON

OFF*

HIGH

MIN POS H to

Full Open

Closed to

Full Open

Below CO

2

 Set

NO

ON

N/A

N/A

OFF

OFF

HIGH

VENTMIN H

Closed

OFF

OFF

OFF

OFF

OFF

LOW

VENTMIN L

Closed

OFF

ON

OFF

ON

OFF

LOW

VENTMIN L

Closed

OFF

ON

ON

ON

ON

HIGH

VENTMIN H

Closed

YES

ON

N/A

N/A

OFF

OFF

HIGH

VENTMIN H

Closed

OFF

OFF

OFF

OFF

OFF

LOW

VENTMIN L

Closed

OFF

ON

OFF

OFF

OFF

LOW

VENTMIN L to

Full Open

Closed to

Full Open

OFF

ON

ON

ON

OFF*

HIGH

VENTMIN H to

Full Open

Closed to

Full Open

Above CO

2

 Set

NO

ON

N/A

N/A

OFF

OFF

HIGH

VENTMIN H to 

VENTMAX H

Closed

OFF

OFF

OFF

OFF

OFF

LOW

VENTMIN L to 

VENTMAX L

Closed

OFF

ON

OFF

ON

OFF

LOW

VENTMIN L to 

VENTMAX L

Closed

OFF

ON

ON

ON

ON

HIGH

VENTMAX H to 

VENTMAX H

Closed

YES

ON

N/A

N/A

OFF

OFF

HIGH

VENTMIN H to 

VENTMAX H

Closed

OFF

OFF

OFF

OFF

OFF

LOW

VENTMIN L to 

VENTMAX L

Closed

OFF

ON

OFF

OFF

OFF*

LOW

VENTMIN L to

Full Open

Closed to

Full Open

OFF

ON

ON

ON

OFF*

HIGH

VENTMIN H to

Full Open

Closed to

Full Open

Содержание WeatherMaster 50GC 04-06 Series

Страница 1: ...FAN OPERATION 2SP H C AND 3 SPEED FAN OPERATION CHECKOUT TROUBLESHOOTING RTU Open Controller Factory Option 35 SystemVu Controller Factory Option 35 Controller Options 35 LOW AMBIENT Smoke Detectors 3...

Страница 2: ...uld cause personal injury death and or equipment damage R 410A refrigerant systems operate at higher pressures than standard R 22 systems Do not use R 22 service equipment or components on R 410A refr...

Страница 3: ...installed W7212 EconoMi er IV Non Fault Detection and Diagnostic 2 RTU Open Multi Protocol Controller 3 SystemVu Controller 6 Electro mechanical can be used with W7220 EconoMi er X with Fault Detecti...

Страница 4: ...4 Fig 2 50GC 04 06 Unit Dimensional Drawing...

Страница 5: ...5 Fig 2 50GC 04 06 Unit Dimensional Drawing cont...

Страница 6: ...6 Fig 2 50GC 04 06 Unit Dimensional Drawing cont...

Страница 7: ...ions 9 Install other accessories PAD MOUNTED INSTALLATION 1 Prepare pad and unit supports 2 Check and tighten the bottom condensate drain connection plug 3 Rig and place unit 4 Convert unit to side du...

Страница 8: ...ENGINEERING MANUFACTURING ENGINEERING REQUIREMENTS SIZE DRAWING NUMBER REV T 005 Y 002 DRAFTER CHECKER D 48TC400427 B WEIGHT MMC 06 17 11 SHEET 5 OF 5 SURFACE FINISH MFG PURCH MODEL INTERNAL USE ONLY...

Страница 9: ...using unit frame as a refer ence See Table 2 on page 7 and Fig 5 for additional information Lifting holes are provided in base rails as shown in Fig 5 Refer to rigging instructions on unit Rigging mat...

Страница 10: ...weatherproof all external ductwork joints and roof or build ing openings with counter flashing and mastic in accordance with applicable codes Do not cover or obscure visibility to the unit s informati...

Страница 11: ...Save the aluminum filter for use in the power exhaust hood assembly 1 The indoor coil access panel will be used as the top of the hood Remove the screws along the sides and bottom of the indoor coil a...

Страница 12: ...owered convenience outlet the power source leads to the convenience outlet s transformer primary are not factory connected Installer must connect these leads accord ing to required operation of the co...

Страница 13: ...ndle Fig 18 Power Wiring Connections Field Install the NFD Shaft and Handle 1 Remove the Control Box access panel The NFD enclosure is located below the Control Box see Fig 19 2 Remove 3 cap head scre...

Страница 14: ...sition See Fig 22 6 Tighten the locking screw to secure the shaft to the HACR 7 Turn the handle to the OFF position with red arrow pointing at OFF 8 Install the handle on to the painted cover horizont...

Страница 15: ...over Aweatherproof while in use cover for the factory installed conve nience outlets is now required by UL standards This cover cannot be factory mounted due its depth it must be installed at unit ins...

Страница 16: ...zation is con firmed Observe National Electrical CodeArticle 210 Branch Cir cuits for use of convenience outlets Fuse On Power Type The factory fuse is a Bussman1 Fusetron T 15 non renewable screw in...

Страница 17: ...rminals during operation must be within voltage range indicated on unit nameplate On 3 phase units volt ages between phases must be balanced within 2 and the current within 10 Use the formula shown in...

Страница 18: ...terminal strip on the upper left corner of the Unit Control Board See Fig 32 NOTE If thru the bottom connections accessory is used refer to the accessory installation instructions for information on r...

Страница 19: ...e heater module VIO and BRN two of each if a two circuit heater module is installed identify for circuit 1 to the 4 pole terminal board TB4 located on the heater bulkhead to the left of the Heater mod...

Страница 20: ...ee Fig 40 Fig 40 Humidistat Connections to UCB Connecting the Thermidistat device 33CS2PPRH 01 1 Route the Thermidistat multi conductor thermostat cable field supplied through the hole provided in the...

Страница 21: ...it with Humidi MiZer Adaptive Dehumidification System and Edge Pro Thermidistat Device Rc Rh W1 G Y2 C O W2 B Y1 OAT RRS SRTN HUM D1 D2 V Vg C HUM G W2 W1 Y2 Y1 R PROGRAMMABLE THERMOSTAT UNIT CONTROL...

Страница 22: ...22 Fig 42 Typical 50GC 04 06 Control Wiring Diagram 208 230V W7220 Control Unit Shown...

Страница 23: ...23 Fig 43 Typical 50GC 04 06 Power Wiring Diagram 208 230V Unit Shown...

Страница 24: ...ce Provides status for normal operation setup parameters checkout tests and alarm and error conditions with a 2 line 16 character LCD display and four button keypad Electrical Rated Voltage 20 to 30 V...

Страница 25: ...Sensor Input e g CO2 sensor IAQ COM COM Air Quality Sensor Common IAQ 24V 24 vac Air Quality Sensor 24 vac Source ACT 2 10 2 10 vdc Damper Actuator Output 2 10 vdc ACT COM COM Damper Actuator Output C...

Страница 26: ...t a menu s item and return to the list of menus Fig 48 W7220 Controller Navigation Buttons To use the keypad when working with Setpoints System and Ad vanced Settings Checkout tests and Alarms 1 Navig...

Страница 27: ...the and arrow buttons to move forward and back ward through the menus and press the button to select and confirm setup item changes TIME OUT AND SCREENSAVER When no buttons have been pressed for 10 m...

Страница 28: ...re Displays _ _ _F if sensor sends invalid value if not connected short or out of range OA TEMP _ _ _ F 40 F to 140 F 40 C to 60 C OUTSIDE AIR TEMP Displays measured value of outdoor air temperature D...

Страница 29: ...TILATION MINIMUM POSITION AT LOW SPEED Only displays if unit is set for 2 or 3 speed and CO2 is not used If using 2 speed with 1 heat and 1 cool then set for HEATING ventilation If using 3 speed with...

Страница 30: ...If using 2 speed fan mode you must program CONV mode for W Shutdown is not available in 2 speed fan mode See Menu Note 4 In HP O B mode HP O energize heat pump on Cool default HP B energize heat pump...

Страница 31: ...o adjust for an out of calibration temperature sensor 2SP FAN DELAY 5 Minutes 0 to 20 minutes in 1 minute increments TIME DELAY ON SECOND STAGE ECONOMIZING When in economizing mode this is the delay f...

Страница 32: ...A OUTSIDE AIR TEMPERATURE SENSOR ERROR Outdoor air temperature sensor has failed or become disconnected check wiring then replace if the alarm continues ACT ERROR N A N A ACTUATOR ERROR Actuator has f...

Страница 33: ...dary the conditions are not good to economize and the mode is set to NO Figure 49 shows the 5 current boundaries There is also a high lim it boundary for differential enthalpy The high limit boundary...

Страница 34: ...delay time specified N A Not applicable Table 9 Fan Speed STATE FAN SPEED OCC Low Y1 Low Y2 High W High Table 10 Economizer Operation FAN TYPE 2SPEED INPUTS OUTPUTS DEMAND CONTROLLED VENTILATION DCV O...

Страница 35: ...Once the alarm has been identified and the cause has been removed e g replaced faulty sensor the alarm can be cleared from the display To clear an alarm perform the following 1 Navigate to the desired...

Страница 36: ...e sure that the elbow fitting is pointing down See Fig 51 Step 2 3 Screw the sensor and detector plate into its operating position using screws from Step 1 See Fig 51 Step 3 4 Connect the flexible tub...

Страница 37: ...oc cupied sequence at terminals marked OCCUPANCY Detach the jumper covering the Occupancy terminals on the UCB and then attach the required connections Step 13 Install Accessories Available accessorie...

Страница 38: ...for the base unit Then add Vdc for any accessories installed per the Field Accessories section of the label NOTE The fan speed set up labels are located on the High Volt age cover in the Control Box...

Страница 39: ...he following determin ing the values per the RPM Calculator label see Fig 55 Use the UP and DOWN arrow keys and the BACK key to set the values Press ENTER after setting each value to continue to the n...

Страница 40: ...75 66 80 107 0 4 1477 1544 1615 1688 1764 1842 1921 2003 2068 66 0 6 1639 1699 1763 1828 1897 1967 2040 2115 2191 0 8 1788 1843 1902 1962 2025 2090 2157 2227 2298 66 1 0 1925 1976 2031 2087 2146 2208...

Страница 41: ......

Страница 42: ...iscontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500269 01 Printed in U S A Form 50GC 4 6 03SI Pg 42 12 19A 12 19 Replaces 50...

Страница 43: ...ns Y N _____ Verify that all electrical connections and terminals are tight Y N _____ Check that indoor air filters are clean and in place Y N _____ Check that outdoor air inlet screens are in place Y...

Страница 44: ...______________ F D Liquid line temperature at outlet or reheat coil _______________ F E Confirm correct rotation for compressor Y N _____ F Check for correct ramp up of outdoor fan motor as condenser...

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