Greenheck Fan Part #470655 manual

Installation, Operation and Maintenance Manual Please read and save these instructions for futur e refer ence. Read carefully befor e attempting to assemble, install, operate or maintain the product described. Pr otect yourself and others by observing all safety information. Failure to comply with instructions could r esult in personal injury and/o[...]

2 DGX Industrial Space Heating The unit should be stored at least 3½ in. (89 mm) of f the floor on wooden blocks covered with moistur e proof paper or polyethylene sheathing. Aisles between parts and along all walls should be provided to permit air circulation and space for inspection. OUTDOOR — Units designed for outdoor applications may be st[...]

3 DGX Industrial Space Heating T able of Contents Installation Clearance to Combustibles/Service Clearances .. 3 Indoor Unit ............................... 4 Unit Arrangement DB / HZ ................... 5 Diffuser .................................. 6 Remote Panel (TSCP) ...................... 6 Electrical Wiring ........................... 7 Gas P[...]

4 DGX Industrial Space Heating Installation of Indoor Unit 3. Seal W all Opening Apply sealant around the perimeter of the weatherhood to prevent water penetration and drafts into the building. 1. Install Hangers Install threaded hangers fr om ceiling supports. When locating hangers, allow enough room to open access panel(s). Be sure to allow for t[...]

5 DGX Industrial Space Heating Installation of Arrangement DB / HZ 1. Install Curb and/or Equipment Support(s) Position curb/equipment support(s) on the roof (refer ence the CAPS submittal for placement of curb/ equipment support(s) in relation to the unit). V erify that unit supports are level; shim if necessary . Attach curb to roof and flash in[...]

6 DGX Industrial Space Heating Installation of Dif fuser and Remote Panel (TSCP) NOTE The location of the discharge diffuser and the TSCP Space Heat Remote Panel are critical for optimum performance of the Greenheat™ System. 2. Install TSCP When installing the TSCP Space Heat Remote Panel, the location is critical to performance of the Greenheat?[...]

7 DGX Industrial Space Heating Installation of Electrical W iring IMPORTANT Before connecting power to the unit, read and understand the following instructions and wiring diagrams. Complete wiring diagrams are attached on the inside of the control center door(s). IMPORTANT All wiring should be done in accordance with the latest edition of the Natio[...]

8 DGX Industrial Space Heating Installation of Gas Piping IMPORTANT All gas piping must be installed in accordance with the latest edition of the National Fuel Gas Code ANSI/Z223.1 and any local codes that may apply. In Canada, the equipment shall be installed in accordance with the Installation Code for Gas Burning Appliances and Equipment (CGA B1[...]

9 DGX Industrial Space Heating Optional V ent Line WARNING NEVER test for a gas leak with an open flame. NOTE The factory piping has been checked for leaks, but should be rechecked due to shipping and installation. 4. Pipe the Optional V ent Line If an optional vent line is located between the safety shutoff valves it must be piped to the outdoors.[...]

10 DGX Industrial Space Heating 2. Check the Blower Rotation Open the blower access door and run the blower momentarily to determine the rotation. Arr ows are placed on the blower scroll to indicate the pr oper direction or r eference the example shown. NOTE To reverse the rotation on three phase units, disconnect and lock-out the power, then inter[...]

11 DGX Industrial Space Heating Start-Up Dir ect Gas IMPORTANT For proper unit function and safety, follow the start-up procedure in the exact order that it is presented. IMPORTANT This start-up should begin after all of the installation procedures and the blower start-up have been completed. 1. Check the Supply Gas Pressur e Check the supply gas p[...]

12 DGX Industrial Space Heating 5. Set the Low Fire Time Delay Set the low fire time delay to 75% of its maximum setting. See below for location of the time delay setting. 6. Set the Maximum Firing Rate Monitor the unit’ s actual temperature rise by placing a thermocouple in the unit’ s inlet and a second in the dischar ge, three duct diameter[...]

13 DGX Industrial Space Heating Start-Up Dir ect Gas continued IMPORTANT Setting the maximum firing rate during mild weather conditions may cause the high limit to trip out during extreme conditions requiring manual resetting. NOTE The minimum setting for the maximum firing rate may be higher than required. This is acceptable, the burner will still[...]

14 DGX Industrial Space Heating 10. Program the 7 Day Time Clock Follow the detailed Programming and Operating Instructions for 7 Day Time Clock that shipped with the unit. Set the timer ON times to the times when the daytime temperature setting is to be used. Set the timer OFF times to the times when the nighttime temperature setting is to be used[...]

15 DGX Industrial Space Heating  • PowerpassesthroughN.O.contactonfanr elay (RF), which is ener gized and closed  • Powerpassestoandener gizestheheatrelay(RH)  • PowerpassesthroughN.O.contactonheatr elay (RH), which is ener gized and closed  • Po[...]

16 DGX Industrial Space Heating Operation - Electrical Sequence W ith 7-Day Timer 1. Switch (S2) in Summer Mode  • PowerpassesthroughN.C.eld-suppliedr e contact (FSC)  • PowerpassesthroughterminalG  • PowerpassesthroughN.C.contactonsupply starter overload (ST1 OL), whi[...]

17 DGX Industrial Space Heating Proper supply power at main disconnect Check Main Voltage (See Blower Start-Up – Step #1) Main Disconnect (DS1) Off (T urn Main Disconnect DS1 On) Primary Fuses Blown (Replace Fuses) 24V ACbetween terminals R and X? Main Transformer (TR1) Defective (Replace T ransformer) 24V ACbetween terminals G and X?[...]

18 DGX Industrial Space Heating Motor Overamps T roubleshooting Air volume too high? Adjust drives or increase external static pressur e as needed. (Reference Blower Start-Up – Step #5) Motor horsepower too low? Resize motor . Motor voltage correct? Provide pr oper power supply . (Reference Blower Start-Up – Step #1) Blower rotation corr ect? R[...]

19 DGX Industrial Space Heating Insufficient Airflow T roubleshooting Damper(s) not fully opened? Adjust damper linkage(s), or replace faulty actuator(s). (Damper actuators may take a few minutes to open) Filters dirty or clogged? Clean or replace filters. (Reference Filters in the Maintenance section). Blower speed too low? Adjust drives as need[...]

20 DGX Industrial Space Heating Excessive Noise or Vibration T roubleshooting Sheaves aligned? Align sheaves. (Reference V -Belt Drives in the Maintenance section) Wheel(s) unbalanced? Clean and/or balance wheel(s). Belts worn or loose? Replace worn belts or tighten loose belts. (Reference V -Belt Drives in the Maintenance section) Yes Yes No No Ye[...]

21 DGX Industrial Space Heating Heater Does Not Operate Does not attempt to light (No visible spark) T roubleshooting 24V ACbetween terminals W1 and X? Heat Switch (S4) Off (T urn Heat Switch (S4) On) Heat Switch Not Wired (Wire Heat Switch (S4)) 115V ACbetween terminals 102 and 101? Primary Fuses Blown (Replace Fuses) Main Transf[...]

22 DGX Industrial Space Heating Heater Does Not Operate Attempts to light, but no pilot (visible spark) T roubleshooting Gas pressur e between the minimum and maximum shown on the direct gas label? Check inlet gas pressur e. (Direct Gas Start-Up Step #1) Air in the gas line? Purge gas line (V erify gas at the pilot) Check for proper pilot pr essure[...]

23 DGX Industrial Space Heating Heater Does Not Operate Visible pilot T roubleshooting Flame signal greater than1.25VDC Measure the flame signal when there is a visible pilot Pressur e drop acr oss the burner between 0.625 and 0.675 in. wg? Check for proper airflow (Direct Gas Start-Up Step #4) Does the flame signal remain constant? Adj[...]

24 DGX Industrial Space Heating Maintenance - Routine CAUTION Lock-out the gas and the electrical power to the unit before performing any maintenance or service operations to this unit. V -Belt Drives V -belt drives must be checked on a regular basis for wear , tension, alignment, and dirt accumulation. Check the tension by measuring the deflectio[...]

25 DGX Industrial Space Heating Bearings The bearings for manufacturer fans ar e carefully selected to match the maximum load and operating conditions of the specific class, arrangement and fan size. The instructions provided in this manual and those provided by the bearing manufactur er will minimize any bearing problems. IMPORTANT Lubricate bear[...]

26 DGX Industrial Space Heating Maintenance - Fall WARNING Do not enlarge burner ports when clearing a blockage, performance could be affected. NOTE Flame rods can last many years, but because of thermal expansion of the porcelain, flame rods can fail over time. Start-Up Repeat the Blower Start-Up Step #5 and Direct Gas Start-Up Step #1, 2 and 4a o[...]

27 DGX Industrial Space Heating Refer ence T ypical Gas T rain Layout 400 – 800 MBH T ypical Gas T rain Layout > 800 MBH Burner Differential Pressur e Sensor High Gas Pressur e Switch (optional) Low Gas Pressur e Switch (optional) Manual Pilot Shut-Off V alve Pilot Gas Pressur e T est Port Pilot Solenoid Burner Gas Pressur e T est Port Burner [...]

28 DGX Industrial Space Heating T ypical Control Center Layout Dirty Filter Switch Refer ence 7 15 14 12 13 4 1 6 2 3 5 8 9 10 11 1. Supply Motor Starter — 24 volt magnetic contacts for starting supply motor . 2. Supply Overload — pr ovides electronic overload protection to supply motor . 3. Low V oltage T ransformer — provides low voltage to[...]

29 DGX Industrial Space Heating Start-Up Checklist Unit Model Number _______________________________ (e.g. DGX-120-GH100-1600) Unit Serial Number ________________________________ (e.g. 10111000) Start-Up Date ____________________________________ Start-Up Personnel Name _________________________ Start-Up Company ________________________________ Phon[...]

30 DGX Industrial Space Heating Maintenance Log Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Da[...]

31 DGX Industrial Space Heating Maintenance Log Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Da[...]

32 470655 • DGX Industrial Space Heating, Rev . 3, August 2012 Copyright 2012 © Greenheck Fan Corporation Greenheckwarrantsthisequipmenttobefreefromdefectsinmaterialandworkmanshipforaperiodofoneyearfromthe shipment date. Any units or parts which prove to be defective during the warra[...]