Carrier 50VS manual

Manufacturer reserves the right to disco ntinue, or change at any time, specifications or de signs without notice and without inc urring obligations. Catalog No . 04-53500046-0 1 Printed in U. S.A. F orm 50VS-1SI Pg 1 311 10-08 Replaces: Ne w Installation, Star t-Up , and Ser vice Instr uctions CONTENTS Page SAFETY CONSIDERA TIONS . . . . . . . . .[...]

2 INST ALLA TION Step 1 — Check Jobsite — Installation, operation and maintenance instructions are pr ovided with each unit. Before unit start-up, read all manuals and become familiar with the unit and its operation. Thoroughly check out the system before operation. Complete the inspections and instructions listed below to prepare a unit for in[...]

3 2 1/4" 2 3 / 8 " 5 5/ 8 " 55 1/2" 3 " 10" 12" 6 1/ 8 " 1 3 1 3 /16" 65 1/4" S WAGE FILTER S UPPLY GRILLE RETURN S UPPLY DRAIN OPTIONAL 24V THERMO S TAT LOCATION RETURN AIR OPENING 88 " 3 " TAILPIECE RI S ER 104" to 115" HO S E KIT S MOTOR /BLOWER CONTROL BOX HEAT PUMP CHA SS I [...]

4 NO TES: 1. Single deflection grilles include adjustable v er tica l b lades f or controlling horizontal path of discharge. 2. Double deflection grilles include adjustab le ver tical and horizontal blades f or controlling horizontal and vertical path of discharge air (recommended). 3. Dimensions are in inches. 4. All dimensions are 1 / 4 inch. 5. [...]

5 NO TES: 1. The opposed blade damper allows control of air v olume (cfm) and path of discharge air . Recommended for applica- tions requir ing unequal airflow or side discharge gr ille(s) with additional top discharge air o pening. 2. Dimensions are in inches. 3. All dimensions are 1 / 4 inch. 4. Discharge grilles are shipped l oose for field inst[...]

6 S T ANDARD PERIMETER BYP A SS ALLEN LOCK, REMO V ABLE OPTIONAL PERIMETER BYP A SS ALLEN LOCK OR KEY LOCK, HINGED OPTIONAL LOUVERED ALLEN LOCK, REMO V ABLE 21.1 3 26.2 8 5 8 .00 6 3 .15 61.11 24.19 17.6 8 24.91 2.95 55. 3 5 S T ANDARD PERIMETER BYP A SS ALLEN LOCK, REMO V ABLE OPTIONAL PERIMETER BYP A SS ALLEN LOCK OR KEY LOCK, HINGED OPTIONAL LOU[...]

7 S T ANDARD PERIMETER BYP A SS ALLEN LOCK, REMO V ABLE OPTIONAL PERIMETER BYP A SS ALLEN LOCK OR KEY LOCK, HINGED OPTIONAL LOUVERED ALLEN LOCK, REMO V ABLE 6 3 .90 5 8 .75 27.1 3 3 2.2 8 3 0.19 61. 8 6 19.6 8 24.91 5 8 .75 2.95 S T ANDARD PERIMETER BYP A SS ALLEN LOCK, REMO V ABLE OPTIONAL PERIMETER BYP A SS ALLEN LOCK OR KEY LOCK, HINGED OPTIONAL[...]

8 Step 2 — Chec k Unit — Upon receipt of shipment at the jobsite, carefully check the shipment against the bill of lading. Make sure all units have been received. Inspect the car - ton or crating of each unit, and inspect each unit for damage. Ensure the shipping company makes proper notation of any shortages or damage on all copies of the frei[...]

9 The direct return system shows the most common piping ar- rangement. This is the most cost ef fective method of piping to install since the water is supplied and returned to a riser column at the same place, at the bottom or top of the building. Howev- er , this type of system requires more effort to individually bal- ance water flow to the units[...]

10 All riser modifications necessitated by variations in floor-to- floor dimensions including cutting of f or extending risers is the sole responsibility of the installing contractor . Additional expansion compensation must be made in the riser system in the field where movement is expected to exce ed the factory allowances. Figure 9 displays the e[...]

11 6. When all units on a riser are anchored into place, com- plete riser joints as follows: a. V erify that all riser joints are vertically aligned and that risers penetrate at least 1 in. into the swaged joint of the riser below . DO NOT let riser joint bot- tom out. b. Braze riser joints with a high-temperature alloy using proper Phos-copper of [...]

12 In areas with extremely hard water , the owner should be in- formed that the heat exchanger may require additional system maintenance and occasional acid flushing. W ater Supply and Quality — Check water supply . W ater sup- ply should be plentiful and of good quality . See T able 3 for wa- ter quality guidelines. In all applications, the qual[...]

13 Step 6 — Wire Field P ower Suppl y Connections ELECTRICAL–LINE V OLTAGE — A ll fie ld -in st al le d wir - ing, including electrical ground, must comply with the National Electrical Code (NEC) as well as all applicable local codes. Re- fer to T ables 4 and 5 for fuse si zes. Refer to T able 6 for blower speed wiring. See Fig. 10 for field [...]

14 BLO WER SPEED WIRING Unit Orange Bro wn Black Blue Red 50VSA,B Low Hig h — — — 50VSC,D —L o w H i g h — — 50VSE,F — — Lo w High — 50VSG,H ——— L o w H i g h 50VSI,J Low Hig h — — — 50VSK,L — — Low High — 50VSM,N ——— L o w H i g h a50-8352 NO TES: 1. Used f or optional communicat ing thermostat. 2. Cut JP1[...]

15 Step 7 — Wire Field Contr ol Connections ST ANDARD 24-V THERMOSTAT CONNECTIONS — The thermostat should be wired directly to the microprocessor board terminals labeled P1 to the corresponding terminals (R,C,Y1,Y2,O,G). Installation of Optional W all-Mounted Thermost at — The unit can be controlled with a remote 24-volt surface mounted therm[...]

16 Table 8 — Braided Water Hose Be nd Allowances NO TE : Do not allow hoses to rest against shar p edges or structural building components. Compressor vi br a tion ma y cause hose f ailure and vibration transmission through the hoses to the structure, caus- ing noise complaints . 7. Slide the chassis part way into the cabinet. Match the W A TER I[...]

17 Step 12 — Install Supply Grille Refer to Fig. 2, 3, and 12 to determine grille size and location based on the type and size of the unit cabinet/chassis combina- tion. Perform the following to install supply grilles over the cabinet discharge openings. 1. T o prevent supply air from short circuiting back into the return air panel a supply duc t[...]

18 Table 9 — Limits of Operatio n LEGEND * Requires additional insulation when operating below the dew point. 4. Unit fan: Manually rotate fan to verify free rotation and ensure that blower wheel is secured to the motor shaft. Be sure to remove any shipping supports if needed. DO NOT oil motors upon start-up. Fan motors are pre-oiled at the facto[...]

19 to determine the unit error . If a digital communicating ther mo- stat is used DIP switch 3 must be set in the “Off” position. If a 24-vac thermostat is used set DIP switch 3 into the “On” position. DIP SWITCH 4 (R V at Coolin g = Off/R V at Cooling = On) Reversing V alve Operation — DIP switch 4 is used to deter- mine the reversing va[...]

20 f. Turn thermostat to “OFF” position. A hissing noise indicates proper functioning of the reversing valve. g. All ow 5 minutes between te sts for pressure to equalize before beginning heatin g test. h. Adj ust the thermostat to the lowest setting. Place the thermostat mode switch in the “HEA T” position. i. Slowly raise the thermost at t[...]

21 SER VICE W ater Coil Maintenance CLOSED LOOP SYSTEM (All Other W at er Loop Applica- ti on s ) — Generally water coil maintenance is not needed for closed loop systems. However , if the piping is known to have high dirt or debris content, it is best to establish a periodic maintenance schedule with the owner so the water coil can be checked re[...]

Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53500046-01 Printed in U. S.A. Form 50VS-1SI Pg 22 311 11-08 Replaces: N e w Copy right 2008 Carrier Cor poration has reached acceptable levels , the unit microprocessor will power on [...]

CL-1 ST A R T -UP CHECKLIST CUSTOMER: ___________________________ JOB NAME: _______________________________________ MODEL NO.:___________________________ SERIAL NO.: ____________________ DA TE: _________ I. PRE-ST AR T -UP DOES THE UNIT VOL T AGE CORRESPOND WI TH THE SUPPL Y VOL T AGE A V AILABLE? (Y/N) HA VE THE POWER AND CONTROL WIRING CONNECTION[...]

Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53500046-01 Printed in U .S.A. Form 50VS-1SI Pg CL-2 311 11-08 Replaces: New Copy right 2008 Carrier Cor poration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [...]