Related Manuals for Enviro Series D
Summary of Contents for Enviro Series D
- Page 1 HORIZONTAL, LOW PROFILE FAN COILS Series D INSTALLATION, OPERATION & MAINTENANCE Supersedes ET115.24-NOM11 (417) Form ET115.24-NOM11 (118)
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Page 2: Table Of Contents
Coil ........18 ENVIRO-TEC... -
Page 3: Safety Symbols
Use flame and heat be disconnected prior to servicing. protection barriers where needed. Electric Heaters may start automatically, Have fire extinguisher available and disconnect all power and control circuits ready for immediate use. prior to servicing to avoid burns. ENVIRO-TEC... -
Page 4: Section One - Receipt & Initial Installation
PREFACE No attempt should be made to handle, install, or service any unit without ENVIRO-TEC fan coils represent a prudent investment which can, with proper installation, operation, and following safe practices regarding regular maintenance, give trouble-free operation and mechanical equipment. -
Page 5: Unpacking & Inspection
In the event a claim for shipping to a hostile environment such as rain, snow, or extreme damage is filed, the unit, shipping carton, and all packing temperatures. must be retained for physical inspection by the freight ENVIRO-TEC... - Page 6 3. FEATURE QUANTITIES MAY VARY FOR DIFFERENT CONFIGURATIONS. inserts for use with 3/8" all thread hanger rod. The unit’s drain pan is factory sloped toward the drain connection when the unit is installed level and plumb. ENVIRO-TEC...
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Page 7: Drain Pan
All installations should be made in compliance with all governing codes and ordinances. Compliance with all codes is the responsibility of the installing contractor. ENVIRO-TEC... -
Page 8: Cooling/Heating Medium Connections
All water coils must be protected from freezing after initial filling with water. Even if the system is drained, unit coils Figure 3a-3d: Typical auxiliary drain pan removal may still hold enough water to cause damage when exposed to temperatures below freezing. ENVIRO-TEC... -
Page 9: Auxiliary Drain Pans
If not included on the unit or furnished from the factory, ENVIRO-TEC supply and return grilles are available in a variety of types. Units can be configured from the factory with duct Figure 4: Electrical enclosure collars for attaching ductwork. -
Page 10: Telescoping Bottom Panel
NEC and inspected by ETL to maintain product listing. Unauthorized modification to any wiring may impact unit performance and void ETL listing and/or product warranty. ENVIRO-TEC... -
Page 11: Model Hlp Horizontal Fan Coil Optional
FORM ET115.24-NOM11 (118) MODEL HLP HORIZONTAL FAN COIL Optional Telescoping Bottom Panel Assembly, Typical Installation Instructions Drawings are subject to change without notice. Refer to www.enviro-tec.com for current submittal drawings. FHP UNIT CHASSIS 10 1/2" 7 [178] 10 1/2 [267]... -
Page 12: Service & Clearance Requirements
FORM ET115.24-NOM11 (118) SERVICE AND CLEARANCE REQUIREMENTS HORIZONTAL, LOW PROFILE EXPOSED UNITS ENVIRO-TEC... -
Page 13: Height Restricted Application
CORNER PANELS ROTATE ABOVE UNIT ABOUT PIVOT POINT HALF OPENED 4" [102] MIN CORNER PANELS ROTATED 90° REQUIRED CLEARANCE CAN BE LIFTED AND REMOVED BELOW UNIT FULLY OPENED 11" [279] MIN REQUIRED CLEARANCE BESIDE UNIT HORIZONTAL, LOW PROFILE EXPOSED UNITS ENVIRO-TEC... -
Page 14: Width Restricted Application
REQUIRED CLEARANCE LIFT AND ROTATE CORNER PANEL ABOVE UNIT OFF OF PIVOT POINT HALF OPENED 3" [76] MIN REQUIRED CLEARANCE BESIDE UNIT (PANEL REMOVAL REQUIRED FOR ELECTRICAL ACCESS) FULLY OPENED DROP CORNER PANELS STRAIGHT DOWN HORIZONTAL, LOW PROFILE EXPOSED UNITS ENVIRO-TEC... -
Page 15: External Space Requirements
4. Dimensions shown on this drawing apply to standard CW and HW valve packages. Refer to the ordinances. Piping Package Catalog for valve package code details. Contact factory for details on valve packages using non-standard or customer furnished components. 5. Provide sufficient clearance to access electrical components and comply with all applicable codes and ordinances. ENVIRO-TEC... -
Page 16: Section Two - Start-Up
& start-up check sheet, a copy of which is provided on the back of this manual. Contact the Sales Representative or the factory for additional copies of this sheet. ENVIRO-TEC... -
Page 17: Motor & Fan Data
1. Motor electrical data is nameplate data. 2. Watts are based on an HLF with PSC motor, 3 row coil, 12FPI, 1" throwaway filter, 0.05" ESP at 115V. 3. PSC motors are not available in 208-277V on SZ02 and SZ03. 4. Motor data is subject to change and should not be used for submittal purposes. Refer to Web-Select submittal for actual ratings. ENVIRO-TEC... -
Page 18: Water System Balancing
Before and during water system balancing, conditions may exist which can result in noticeable water noise or undesired valve operation due to incorrect system pressures. After the entire system is balanced, these conditions will not exist on properly designed systems. ENVIRO-TEC... -
Page 19: Section Three - Normal Operation & Periodic Maintenance
Motors are permanently lubricated, PSC or EC type and do not require field lubrication. Figure 6b Figure 5a Figure 6c Figure 5b Figure 5a-5b: Bottom panel removal Figure 6a-6c: Fan deck removal ENVIRO-TEC... -
Page 20: Coil
Refer to troubleshooting section for high limit reset instructions. High supply voltage also causes excessive amperage draw and may result in tripping of the circuit breaker or blowing of the fuses on the incoming power supply. ENVIRO-TEC... -
Page 21: Filters, Throwaway
Refer to the Figure 7c Figure 7a Figure 7d Figure 7b Figure 7a-7d: Filter removal ENVIRO-TEC... -
Page 22: Drain
[508, 1016 x 235 x 25] NOTES: 1. Face and free areas are in square feet [square meters]. 2. Filter sizes are in inches [millimeters]. 3. Free area of ENVIRO-TEC Model HLE and Telescoping ® Bottom Panel return grilles. 4. Free area of ENVIRO-TEC Model HLE supply grille and ®... -
Page 23: Optional Item Installation
(See Figure 1) f. Complete all assembly prior to mounting pump cover. Figure 9 Current Switch in circuit g. Connect tubing. Once all of the connections are made, reconnect the main power of the unit. Figure 10 Current Switch mounting ENVIRO-TEC... -
Page 24: Differential Air Pressure Switch
Adjustable set point ranges in H Min. Max. Proof Ranges In H 0.10 0.50 Functional Diaphragm vertical, barbed Operating positing fittings horizontal -40 °F to 140 °F Operating temp. (-40 °C to 60 °C) Figure 12a General measurements: Pressure Switch Figure 11 Figure 12b ENVIRO-TEC... -
Page 25: Discharge Air Sensor
Feet Turns d. Once all of the connections are made, reconnect 2000 8000 the main power. 4000 9000 6000 10000 Electrical ratings WARNING: Do not exceed the maximum wattage, ratings, or published operating conditions as noted below. Figure 13 ENVIRO-TEC... -
Page 26: Unit Weight Data
6 ROW - DRY 12 [5] 14 [6] 17 [8] 21 [10] 26 [12] 28 [13] 34 [16] 39 [18] 6 ROW - WET 19 [9] 21 [10] 25 [11] 29 [13] 36 [16] 38 [17] 45 [21] 51 [23] ENVIRO-TEC... -
Page 27: Condensate Float Switch Installation
7. Test switch sensitivity. Fill pan and confirm that switch stops unit before pan overflows. 8. Place warning sticker on air handler or condenser unit Figure 15a: Drain pan float switch installed Figure 15b: Drain pan float switch diagram ENVIRO-TEC... -
Page 28: Replacement Parts
When ordering parts, the following information must be supplied to ensure proper part identification: 1. Complete unit model number 2. Unit hand connection (right or left hand) while facing the direction of airflow at the inlet 3. Complete part description including any numbers. ENVIRO-TEC... -
Page 29: Section Four - Inspection & Start-Up Checklist
Check all ductwork & units for air leaks Balance air systems as required Record all final settings for future use Check piping & ductwork for vibration Check all dampers for proper operation Verify proper cooling operation Verify proper heating operation Reinstall all covers & access panels ENVIRO-TEC... - Page 30 (J2-J5). verify that a fan speed is selected before providing the command signal to the external electric heat control to Figure F.1: Fan Relay Board (FRBii) ENVIRO-TEC...
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Page 31: Installation
30VA – PC-01-0134 PK-FCU030-0 (25-3043-7) may result in severe personal injury Model(s) 50VA – PC-01-0135 or death. PK-FCU050-0 (25-3043-15) Voltage 120 through 277VAC Current (fan relays) Operating temperature -4°F to 140°F (-20°C to 60°C) ENVIRO-TEC... -
Page 32: Reference Wire Diagram
FORM ET115.24-NOM11 (118) REFERENCE WIRE DIAGRAM ENVIRO-TEC... -
Page 33: Ratings
10 G – Fan Enable W1 – Heat 1 12 COM 13 DAMP - Damper 14 COM 15 HEAT – Heat output 16 COM 17 24V 18 S1 – Common Figure F.2 – Connector layout ENVIRO-TEC... -
Page 34: Tools Needed For Installation/Troubleshooting
R and G on the screw terminals. After wiring the switch, remove jumper JP3. To add a remote 3-speed switch, wire the leads for the switch to G, H, M and L Remote 3-speed switch on the screw terminals. After wiring the switch, remove jumper JP1. ENVIRO-TEC... -
Page 35: Jumpers
In most Enable instances, JP3 will be installed Jumper (unless a thermostat or controller is remotely controlling of the equipment). JP2 and JP3 locations can be seen in Figure F.3. Figure F.3: FRBii Jumpers and Test Points ENVIRO-TEC... -
Page 36: Screw Terminal Signals
[tristate] water valve applications. 12 S1 Common Common side of transformer. Jumped to C (common) through JP2. If application calls for float switch JP2 is removed and float switch is connected between S1 and C. ENVIRO-TEC... -
Page 37: Checking Wire Harnesses
• Remove power from the unit. Unplug motor harness J4 and/or J5 connector. • Unplug motor harness from motor connection or PWM board (depending on type of motor). Verify continuity of wires, then reconnect to J4 or J5 connector and to motor or PWM board. ENVIRO-TEC... -
Page 38: Fan Relay Board
Outside Air Damper Verify that fan motor is running. A fan speed actuator will not Fan speed is not commanded. must be commanded from one of these sources energize to allow the damper actuator to energize. ENVIRO-TEC... -
Page 39: Psc Motor
Replace motor harness Verify motor is not overheated. Check to ensure blower rotates freely with motor disconnected. Verify proper Motor overloaded. duct static. Wait for motor to cool down and verify motor start. If motor overheats again, replace motor. ENVIRO-TEC... - Page 40 Verify proper inlet air to unit. Check cleanliness of coil. Dirty coil fins will restrict Dirty coil airflow. Dirty filters Check for dirty or blocked filters. Replace as needed. Damaged or blocked blower Verify blower rotates freely. Clear blockage. ENVIRO-TEC...
- Page 41 Remover power from unit. Align wheel in housing and Loose fan wheel tighten. Inspect fan wheel to verify fins are not bent. Replace Damaged fan wheel blower as needed. Imbalanced fan wheel Inspect fan wheel. Replace as needed. ENVIRO-TEC...
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Page 42: Ec Motor
Verify PWM signal at motor connector. Refer to PWM board IOM. Wiring harness improperly Unplug harness and re-install, making sure plugs are fully seated seated. Wiring harness(es) open or Replace harness(es). Refer to PWM board IOM. intermittent Damaged motor harness Replace motor harness ENVIRO-TEC... - Page 43 Verify proper inlet air to unit. Check cleanliness of coil. Dirty coil fins will restrict Dirty coil airflow. Dirty filters Check for dirty or blocked filters. Replace as needed. Damaged or blocked blower Verify blower rotates freely. Clear blockage. ENVIRO-TEC...
- Page 44 Verify filter is not dirty and does not obstruct airflow. Motor Control failure Replace motor. EC motor runs in reverse, doesn’t respond Motor Control failure Replace motor. to speed adjustment ENVIRO-TEC...
- Page 45 Fan wheel rubbing on fan Align wheel in housing. housing Loose fan wheel Align and tighten. Inspect fan wheel to verify fins are not bent. Replace Damaged fan wheel blower as needed. Imbalanced fan wheel Inspect fan wheel. Replace as needed. ENVIRO-TEC...
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Page 46: Cooling System
Verify integrity of unit. Verify ducts are properly sealed. Pipe insulation Verify pipes are properly insulated Unit sweats Damaged insulation Verify insulation at point of sweating Unconditioned air to unit Verify conditioned air to unit Drain pan is clogged Locate and remove blockage. ENVIRO-TEC... -
Page 47: Electric Heat
To verify [Magnetic contactor] Electric contactor: with power removed, unwire contactor and verify heat contactor fault continuity across contacts when manually operated. Cover of contactor will need to be removed to access manual operator. Replace contactor if faulty. ENVIRO-TEC... - Page 48 Remove thermostat or control command signal. Verify no control [Solid state relay] Shorted solid voltage to solid state relay. If electric heat continues to operate state relay and all wiring has been verified, replace solid state relay. ENVIRO-TEC...
- Page 49 Primary limit switch cycling. The primary limit switch(es) will auto-reset once the unit cools down. If unit is hot, wait for heater to cool down. This may take up to an hour. If limit trips again, verify heater is not overheating. ENVIRO-TEC...
- Page 50 ENVIRO-TEC is a mark and/or registered mark. Unauthorized use is strictly prohibited. Catalog: ET115.24-NOM11 (118) Supersedes ET115.24-NOM11 (417) © 2018 Johnson Controls www.enviro-tec.com...
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