Optional Secondary Drain Pan Easily Removed Drain Pan & Motor Assembly (Supplied with Piping Packages) • For easy maintenance and service • Noncorrosive • Sloped, polymer drain pan for good IAQ • Easily removed Daikin IM 980-1...
A one-inch duct collar is provided on units with a ducted accept other types of conductors. Failure to do so may cause return and/or discharge to attach ductwork. Daikin damage to the equipment. recommends using galvanized sheet metal ductwork. Slide...
WARNING For hideaway units, if you are using Daikin's Installation and maintenance are to be performed by qualified personnel who are familiar with local codes and Regulations, decorative wallplate, use blocks or other suitable and experienced with this type of equipment..
Install control valves so there is at least 2" (51mm) insulation, also damage to valves, wiring, electronics, minimum clearance to remove the actuator from the 7. When Daikin provides valve sensors, etc. See Figure valve body.
For other arrangements, the secondary drain pan must be ordered separately. and water treatment. • Daikin Deluxe and Enhanced piping packages include a Push the main drain pan condensate hose back inside the end plate to prevent it from getting burned when making strainer which prevents debris from entering the coil.
Make piping connections to the steam coil per job requirements. (Daikin does not supply steam piping connections.) Install a 1/2", 15-degree swing check vacuum breaker in the unused condensate return trapping as close as possible to the coil.The following procedures are...
If used for auxiliary intermediate season Low-voltage heating, additional control is required. A second switch or pipe conductors sensor is required. Contact your Daikin representative for brought in here more information. To protect the electric heat elements, an automatic and manual electric heat switch disengages the electric heat to prevent overheating.
V wire must then be capped off with a wire nut or male terminal as appropriate. Please refer to the unit wiring diagram. Mains Operating Voltages Flexible Hose Operating voltages are as follows (+/– 10%). • 115/60/1 • 208-230/60/1 • 265-277/60/1 Daikin IM 980-1...
IMPORTANT It is Daikin's policy not to make recommendations on water treatment. It is the responsibility of the user to check that the water supply to the units is free of contaminants or corrosive agents, chemicals or minerals.
(see Fresh Air Damper‚ page 16). Daikin publication ED 18513-1 and ED 18527. • High, Medium, Low: Fan runs continuously at the selected speed. The two-position, motorized fresh-air damper, when MT155 Thermostat supplied, is opened.
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For more details refer to page 51, 55 or 59. Series MT158 and MT168 microprocessor-based thermostat-controllers combine a proportional integral control algorithm with adaptive logic. They may be unit-mounted or remote-wall mounted. Figure 16: MT158 and MT168 Thermostats Daikin IM 980-1...
Figure 37, page 28 or the unit’s wiring diagram, which is mounted) Daikin thermostat or control. It can also be used in attached to the corner panel on cabinet units and to the chassis conjunction with a controller of a building automation system front cover on hideaway units.
Figure 22: Condensate Overflow Switch Installation Cold Weather Operation Unit heaters may experience erratic operation during cold ambient conditions with the outside air damper in the open position. Daikin IM 980-1...
Note: The need to reset the manual switch may indicate that there are improperly functioning system components. If Loosen the locking nut on the leveling leg bolt with a the switch trips again, contact Daikin Factory Service 9/16-inch wrench. for help in diagnosing the cause.
(this is opposite the side where the control access until the front edge of the filter drops down. panel is located on units with unit-mounted controls. See Figure 5, page 6 for a description of how to remove it. Daikin IM 980-1...
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Note: Push the tabs inward on the sides of the plug to free out of the unit. it from the connector base. The main condensate drain pan sits atop the fan deck and is now easily accessed for cleaning. To reinstall, follow these steps in reverse order. Daikin IM 980-1...
152 (69) 177 (80) 202 (92) FCVH 55 (25) 63 (29) 74 (34) 91 (41) 110 (50) 129 (59) 149 (68) Note: *Approximate shipping weights do not include valve packages, hot water coils, electric heaters or other options. Daikin IM 980-1...
Return distances are the same. Distances to connections from chassis are from unit mounting holes. Dimensions may vary slightly from given values. 2” [51 mm] 6.4” [163 mm] 4.2” 1.3” [33 mm] [107 mm] 4.9” [125 mm] Daikin IM 980-1...
Wiring Diagrams Wiring Diagrams Figure 35: Fan Coil Wiring Diagram - Typical with solid-state thermostat Note: All field installed conductors should have an insulation rating of 300 volts or greater. Daikin IM 980-1...
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Wiring Diagrams Figure 36: Fan Coil Wiring Diagram - Typical with unit-mounted three-speed fan switch Note: All field installed conductors should have an insulation rating of 300 volts or greater. Daikin IM 980-1...
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Wiring Diagrams Figure 37: Fan Coil Wiring Diagram - Typical with electric heat and low-voltage interface board Note: All field installed conductors should have an insulation rating of 300 volts or greater. Daikin IM 980-1...
Preheat Coil Connection Type Primary Coil Type • S = sweated • C = chilled water only • T = threaded • W = CW/HW 2-pipe • N = none • H = hot water only • S = steam Daikin IM 980-1...
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• 040 = 4.0 kW Electric Heat • D = digital • 050 = 5.0 kW Electric Heat • R = DDC Ready • 060 = 6.0 kW Electric Heat • X = Special • 000 = None • Y = None Daikin IM 980-1...
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• See Table 4 • X = special Valve - Preheat Coil Occ / Vacant Control Input • See Table 4 • Y = None Valve - Reheat Coil • X = special • See Table 4 Daikin IM 980-1...
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• 04 = 4 Inch Extended Depth • XX = special • 08 = 08 inch Extended Depth Filter Unit Lineup Position • 1 = 1” Throwaway Filter • S = Standalone • 3 = 1” Throwaway + (1) Extra Daikin IM 980-1...
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• Y = none from shipment or 60 month from installation) Packaging • X = special • S = Standard Product Style • T = palletized based on tagging and by floor • 1 = Style 1 Daikin IM 980-1...
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The appropriate conversion kits are screws (see Figure available from Daikin for field installation. Contact your Attach the short front panel to the front of the chassis as Daikin Sales Represetative for details. shown. Secure the short panel with four of the retained...
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Figure 1: Removing the Discharge Duct Collar and Front Block-off Plate Discharge Duct Collar Front Block-Off Plate Figure 2: Attaching the Top Block-Off Plate and Short Front Panel Top Block-Off Plate Short Front Panel Daikin IM 1121...
Install the fresh air damper kit according to the Installation and maintenance are to be performed only by instructions provided in Daikin IM 1023. qualified personnel who are familiar with and in compliance with state, local and national codes and regulations, and Locate all damper motor kit components and remove experienced with this type of equipment.
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– with quick connects Unit mounted 24VA LINE sensor Changeover VOLTAGE XFMR pipe sensor or switch Condensate overflow sensor Available in Stock Figure 3: Factory-installed and wired Low Voltage Interface Board (Wiring Diagram) Daikin IM 1089 Page 48...
The following accessories needed for field-installed thermostat manufacturer’s installation literature and use this manual model T*155 (unit-mounted or wall-mounted): as a guideline only. • Thermostat TA155 (kit) – PN 107345302 or Thermostat TB155 (kit) – PN 107345304 Daikin IM 1089 Page 49...
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Thermostat Operation detected, the system will operate in winter mode, the Main output will be heating and First Stage Secondary Output will These thermostats are designed to control On-Off, N.O. and be disabled. In the case of an ambiguous reading, neither hot N.C.
The appropriate HEAT or COOL indicator is This output is ON any time the control is turned ON. enabled in addition to AUTO. A 3°F dead-band is provided to prevent short cycling between heating and cooling modes. Daikin IM 1016-1 Page 56...
4-20 mA Secondary heat. Output Output The thermostat is shipped with all dip switches in the "ON" (closed) position. The damper output is ON when mode is AUTO, HEAT or COOL. Damper is OFF in set back. Daikin IM 1017 Page 60...
Daikin. You must review your application and national and local codes to assure that your installation is functional and safe.
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With the base now secured, verify that the circuit board is firmly snapped into the cover and is not dislodged. Install the cover assembly to the base, pressing firmly to engage the cover locking snaps. Daikin IM 846 Page 66...
5°F above ambient temperature to cycle on heating. COOL—The thermostat operates as a cooling only Using the DOWN arrow, adjust the temperature to more thermostat. than 5°F below ambient temperature to cycle on cooling. HEAT—The thermostat operates as a heating only thermostat. Daikin IM 846 Page 67...
Range limit low White/Violet switch When this function is selected, the current minimum range setting, the SET POINT icon. and the LO icon appear. To increase or decrease the value, press the up or down arrow button. Daikin IM 846 Page 68...
A factory configuration may be provided for minimum heating and cooling requirements. Using this configuration, the HEAT and COOL outputs are automatically cycled on at the heat setback limit. Your thermostat may not have this feature. Daikin IM 846 Page 69...
If at any time the call goes away, the thermostat Note: overrides any user setting except if the control is turned to stops the purge cycle. OFF. The thermostat checks the pipe sensor to verify water temperature. Daikin IM 846 Page 70...
To enable door/window switch only operation, install a jumper to JP3 (see “Mounting and Wiring the Thermostat” on page 65) and the occupancy input must be shorted to circuit common. Daikin IM 846 Page 71...
Note – An optional door and/or window switch (Figure 11) and room. Any occupancy detection will set the operation to slave sensor can be added for use with the SD200-001 occupied mode. sensor. Figure 11: Optional equipment configuration #2 Daikin IM 846 Page 73...
This system provides basic room setback and is ideal for control of HVAC in commercial spaces. Note – To use this configuration, the jumper to JP3 is removed to allow setback input. Figure 12: Optional equipment configuration #3 Daikin IM 846 Page 74...
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Daikin Training and Development Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on training, or call 540-248-9646 and ask for the Training Department.
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Daikin Training and Development Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on training, or call 540-248-9646 and ask for the Training Department.
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