Danfoss LLZ013 Application guide

Application guidelines

Danfoss scroll for refrigeration

LLZ013 to 034 with NI/VI/LI

Low temperature

50-60 Hz - R404A, R507

http://cc.danfoss.com

FRCC.PC.039.A1.02

Content

	GENERAL INFORMATION........................	4	Manage superheat..................................	28
			Requirement.............................................................	28
			Evaluate the risk......................................................	28
	PRODUCT INFORMATION........................	5	Test, criteria and solutions...................................	28
	Features.....................................................	5	Manage off cycle migration...................	29
	Overview.......................................................................	5	Requirement.............................................................	29
	Compressor model designation	6	Evaluate the risk......................................................	29
			Test, criteria and solutions...................................	29
	Nomenclature.............................................................	6	Control logic	30
	Technical specifications	7
			Safety control logic requirements	30
	50-60 Hz data	7
			Cycle rate limit requirements	30
	Dimensions..............................................	10	Oil management logic recommendations....	30
	Single compressors LLZ013-015-018................	10	Defrost logic recommendations.......................	30
	Single compressors LLZ024.................................	11	Pump-down logic recommendations.............	31
	Single compressors LLZ034 ................................	12	Provide power supply and electrical
	Electrical data, connections and wiring14		protection................................................	32
	Motor voltage...........................................................	14	Wiring information.................................................	32
	Wiring connections.................................................	14
	IP rating.......................................................................	15	INTEGRATION INTO SYSTEMS..............	33
	Three phase electrical characteristics..............	15	Reduce moisture in the system	33
	Motor protection.....................................................	16
	Approval and certificates	17	Requirements...........................................................	33
			Solutions....................................................................	33
	Pressure equipment directive.............................	17	Assembly line procedure	34
	Low voltage directive.............................................	17
	Machines directive..................................................	17	Compressor storage..............................................	34
	Internal free volume...............................................	17	Compressor holding charge...............................	34
			Handling ...................................................................	34
	SYSTEM DESIGN	18	Piping assembly......................................................	35
			System pressure test and leak detection.......	35
	Design piping..........................................	18	Vacuum evacuation and moisture removal .36
	General requirements	18	Refrigerant charging.............................................	36
			Dielectric strength and insulation resistance
	Design compressor mounting	19
			tests.............................................................................	36
	General requirements............................................	19	Commissioning	37
	Single compressor requirements	19
			Preliminary check	37
	Manage sound and vibration	20
			Initial start-up............................................................	37
	Compressor sound radiation..............................	20	System monitoring.................................................	37
	Mechanical vibrations............................................	21	Dismantle and disposal	38
	Gas pulsation	21
	Manage operating envelope.................	22
	Requirement.............................................................	22	ORDERING INFORMATION....................	39
	Evaluate the risk......................................................	24	Packaging	39
	Theory of Injection cycle	25
			Ordering codes	40
	Theory of Vapor injection cycle........................	25
	Theory of liquid injection cycle.........................	25	Accessories..............................................	41
	TREV installation.....................................................	26

3

General Information

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Danfoss scroll compressors are designed and manufactured according to the state of the art and to valid European and US regulations. Particular emphasis has been placed on safety and reliability. Related instructions are highlighted with the following icons:

R This icon indicates instructions to avoid reliability risk.

This icon indicates instructions to avoid safety risk.

You are strongly advised to follow these instructions. For any deviation from the guidelines, please contact Danfoss Technical Support.

In any case, Danfoss accepts no liability as a result of the improper integration of the compressor into the unit by the system manufacturer.

4 FRCC.PC.039.A1.02

Features

Overview	Danfoss scroll compressor for refrigeration, LLZ,
	with its unique scroll design and manufacturing
	process flexibility, offers a highly efficient solution
	for demanding refrigeration applications.
	This new family of refrigeration scroll
	compressors includes 5 sizes of low temperature
	scroll compressors designed for commercial
	refrigeration applications. These compressors are
	engineered for refrigeration and offer cooling
	capacity from 5 to 12 kW (4 to 10 HP) at common
	voltages and frequencies as well as any of the
	common refrigerants (R404A / R507).

Economized compressor: In the LLZ range of refrigeration scrolls, the compressors can work with the economizer line activated, named as economized compressor; or with the economizer line disabled, named as standard compressor. The economized compressor has been developed to provide improved performance and an enlarged operating envelope in refrigeration applications. The economized compressor system presents benefits over standard refrigeration compressor systems of equivalent horse power due to the following:

•Capacity improvement: The capacity is improved without increasing compressor displacement, as it is increased by further increasing system sub cooling with a heat exchanger acting as an economizer

(connected to the compressor economizer line). Furthermore a smaller economized compressor can be used to achieve the same capacity as a larger standard compressor, leading to cost advantages.

•Efficiency improvement: With a suitable sized heat exchanger, the efficiency improves

due to the fact that the gain in capacity is greater than the increase in power that the compressor consumes.

•Enlarged operating envelope: The injection of vapour through the economizer line will reduce the discharge temperature and therefore enlarge the operating envelope based on the same suction status.

Standard compressor with liquid injection: The standard compressor can also connect with a liquid valve to reduce the discharge temperature and enlarge the envelope.

•Enlarged operating envelope: The liquid injection of refrigerant into the compressor will flash and absorb heat from the compressed gas and scroll set leading to cooling of the discharge gas, thus keeping the discharge gas temperature within safe limits. The enlarged operating envelope is therefore based on the same suction status.

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FRCC.PC.039.A1.02 5

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Compressor model designation

Danfoss scroll compressor LLZ for R404A, R507				The example below presents the compressor
is available as single compressor and can be				nomenclature which equals the technical
assembled in manifolding combinations.				reference as shown on the compressor
				nameplate. Code numbers for ordering are listed
				section “Ordering information and packaging”.
Nomenclature
Type	Size	Motor	Features
LLZ	013	T 4 L	Q 9
Family, Refrigerant & lubricant				Other features
				Oil sight	Oil	Oil	LP gauge		Gas
LLZ: low temperature refrigeration,								equalisation
				glass	equalisation	drain	port
R404A, R507 & PVE lubricant									port
			9	Threaded	None	Schrader	None		None
				Tubing and electrical connections
				Q: rotolock connections, screw terminals
Nominal capacity
In thousand Btu/h at 60 Hz,
ARI, LBP conditions				Motor protection
				L: internal motor protection
Model variation				Motor voltage code
				2: 200-220V/3~/50 Hz & 208-230V/3~/60 Hz
T: design optimised for refrigeration
				4: 380-415V/3~/50 Hz & 460V/3~/60 Hz
				9: 380V/3~/60 Hz

6 FRCC.PC.039.A1.02

Technical specifications

50-60 Hz data

Model with activated economizer line only

	Models		Nominal	Nominal cooling		Power	COP	E.E.R.	Swept	Displace-	Oil charge	Net weight
			tons 60 Hz	capacity		input			volume	ment 		
	Refrigerant		TR	W	Btu/h	W	W/W	Btu/h/W	cm3/rev	m3/h	dm3	kg
		LLZ013	4	4044	13802	3011	1.34	4.57	67.4	11.7	1.62	42
	50 Hz	LLZ015	5	4840	16519	3511	1.38	4.71	83.5	14.5	1.62	42
		LLZ018	6	5766	19679	4041	1.43	4.88	97.6	17	1.62	43
	R404A/507*
		LLZ024	8	7242	24717	4994	1.45	4.95	120.2	20.9	2.51	46
		LLZ034	10	9907	33812	6597	1.50	5.12	168.7	29.4	2.51	51
		LLZ013	4	4863	16597	3482	1.40	4.78	67.4	14.2	1.62	42
	60 Hz	LLZ015	5	5778	19720	4158	1.39	4.74	83.5	17.5	1.62	42
		LLZ018	6	6905	23567	4739	1.46	4.98	97.6	20.5	1.62	43
	R404A/507*
		LLZ024	8	8555	29198	5784	1.48	5.05	120.2	25.3	2.51	46
		LLZ034	10	12041	41096	7807	1.54	5.26	168.7	35.4	2.51	51

Displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60 Hz

Net weight with oil charge

TR: Ton of Refrigeration,	Standard rating conditions: EN12900	Evaporating temperature: -35 °C	Superheat: 10 K
EER: Energy Efficiency Ratio	Refrigerant: R404A*	Condensing temperature: 40 °C	Subcooling: 5 K
COP: Coefficient Of Performance		Economizer SH: 5 K	Economizer ΔT: 5K

All of the compressor performance test after run-in 72h

*R507 performance data are nearly identical to R404A performance data Subject to modification without prior notification.

Data given for motor code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/odsg

Model without activated economizer line, without liquid injection

	Models		Nominal	Nominal cooling		Power	COP	E.E.R.	Swept	Displace-	Oil charge	Net weight
			tons 60 Hz	capacity		input			volume	ment 		
	Refrigerant		TR	W	Btu/h	W	W/W	Btu/h/W	cm3/rev	m3/h	dm3	kg
		LLZ013	4	2417	8249	2366	1.02	3.48	67.4	11.7	1.62	42
	50 Hz	LLZ015	5	2937	10024	2776	1.06	3.62	83.5	14.5	1.62	42
		LLZ018	6	3453	11785	3150	1.10	3.75	97.6	17	1.62	43
	R404A/R507*
		LLZ024	8	4411	15055	3957	1.11	3.79	120.2	20.9	2.51	46
		LLZ034	10	6051	20652	5458	1.11	3.79	168.7	29.4	2.51	51
		LLZ013	4	2896	9884	2774	1.04	3.55	67.4	14.2	1.62	42
	60 Hz	LLZ015	5	3552	12123	3307	1.07	3.65	83.5	17.5	1.62	42
		LLZ018	6	4228	14430	3799	1.11	3.79	97.6	20.5	1.62	43
	R404A/R507*
		LLZ024	8	5278	18014	4611	1.14	3.89	120.2	25.3	2.51	46
		LLZ034	10	7404	25270	6157	1.20	4.10	168.7	35.4	2.51	51

Displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60 Hz

Net weight with oil charge

TR: Ton of Refrigeration,	Standard rating conditions: EN12900	Evaporating temperature: -35 °C	Superheat: 10 K
EER: Energy Efficiency Ratio	Refrigerant: R404A*	Condensing temperature: 40 °C	Subcooling: 0 K
COP: Coefficient Of Performance

All of the compressor performance test after run-in 72h

*R507 performance data are nearly identical to R404A performance data Subject to modification without prior notification.

Data given for motor code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/odsg

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FRCC.PC.039.A1.02 7

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Technical specifications

50-60 Hz data

Model with activated economizer line only

	Models		Nominal	Nominal cooling		Power	COP	E.E.R.	Swept	Displace-	Oil charge	Net weight
			tons 60 Hz	capacity		input			volume	ment 		
	Refrigerant		TR	W	Btu/h	W	W/W	Btu/h/W	cm3/rev	m3/h	dm3	kg
		LLZ013	4	4819	16447	3087	1.56	5.32	67.4	11.7	1.62	42
	50 Hz	LLZ015	5	5713	19498	3595	1.59	5.43	83.5	14.5	1.62	42
		LLZ018	6	6806	23229	4137	1.64	5.60	97.6	17	1.62	43
	R404A
		LLZ024	8	8548	29174	5113	1.67	5.70	120.2	20.9	2.51	46
		LLZ034	10	11624	39672	6805	1.71	5.84	168.7	29.4	2.51	51
		LLZ013	4	5776	19713	3573	1.62	5.53	67.4	14.2	1.62	42
	60 Hz	LLZ015	5	6821	23280	4266	1.60	5.46	83.5	17.5	1.62	42
		LLZ018	6	8152	27823	4861	1.68	5.73	97.6	20.5	1.62	43
	R404A
		LLZ024	8	10100	34471	5934	1.70	5.80	120.2	25.3	2.51	46
		LLZ034	10	14028	47877	8055	1.74	5.94	168.7	35.4	2.51	51
	Displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60 Hz

Net weight with oil charge
TR: Ton of Refrigeration,	Standard rating conditions: ARI	Evaporating temperature: -31.7 °C	Superheat: 50 K
EER: Energy Efficiency Ratio	Refrigerant: R404A*	Condensing temperature: 40.6 °C	Subcooling: 5 K
COP: Coefficient Of Performance		Economizer SH: 5 K	Economizer ΔT: 5K

All of the compressor performance test after run-in 72h

*R507 performance data are nearly identical to R404A performance data Subject to modification without prior notification.

Data given for motor code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/odsg

Model without activated economizer line, without liquid injection

	Models		Nominal	Nominal cooling		Power	COP	E.E.R.	Swept	Displace-	Oil charge	Net weight
			tons 60 Hz	capacity		input			volume	ment 		
	Refrigerant		TR	W	Btu/h	W	W/W	Btu/h/W	cm3/rev	m3/h	dm3	kg
		LLZ013	4	3213	10966	2507	1.28	4.37	67.4	11.7	1.62	42
	50 Hz	LLZ015	5	3898	13304	2949	1.32	4.51	83.5	14.5	1.62	42
		LLZ018	6	4583	15642	3346	1.37	4.68	97.6	17	1.62	43
	R404A
		LLZ024	8	5854	19980	4204	1.39	4.74	120.2	20.9	2.51	46
		LLZ034	10	7991	27273	5772	1.38	4.71	168.7	29.4	2.51	51
		LLZ013	4	3857	13164	2938	1.31	4.47	67.4	14.2	1.62	42
	60 Hz	LLZ015	5	4718	16102	3507	1.35	4.61	83.5	17.5	1.62	42
		LLZ018	6	5616	19167	4028	1.39	4.74	97.6	20.5	1.62	43
	R404A
		LLZ024	8	7011	23928	4889	1.43	4.88	120.2	25.3	2.51	46
		LLZ034	10	9791	33416	6616	1.48	5.05	168.7	35.4	2.51	51

Displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60 Hz

Net weight with oil charge

TR: Ton of Refrigeration,	Standard rating conditions: ARI	Evaporating temperature: -31.7 °C	Superheat: 50 K
EER: Energy Efficiency Ratio	Refrigerant: R404A*	Condensing temperature: 40.6 °C	Subcooling: 0 K
COP: Coefficient Of Performance

All of the compressor performance test after run-in 72h

*R507 performance data are nearly identical to R404A performance data Subject to modification without prior notification.

Data given for motor code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/odsg

8 FRCC.PC.039.A1.02

Technical specifications

50-60 Hz data

Model with liquid injection only

	Models		Nominal	Nominal cooling		Power	COP	E.E.R.	Swept	Displace-	Oil charge	Net weight
			tons 60 Hz	capacity		input			volume	ment 		
	Refrigerant		TR	W	Btu/h	W	W/W	Btu/h/W	cm3/rev	m3/h	dm3	kg
		LLZ013	4	2255	7694	2285	0.99	3.38	67.4	11.7	1.62	42
	50 Hz	LLZ015	5	2814	9601	2811	1.00	3.41	83.5	14.5	1.62	42
		LLZ018	6	3307	11283	3247	1.02	3.48	97.6	17	1.62	43
	R404A/507*
		LLZ024	8	4086	13941	4016	1.02	3.47	120.2	20.9	2.51	46
		LLZ034	10	5807	19813	5619	1.03	3.53	168.7	29.4	2.51	51
		LLZ013	4	2754	9397	2750	1.00	3.41	67.4	14.2	1.62	42
	60 Hz	LLZ015	5	3407	11625	3355	1.02	3.46	83.5	17.5	1.62	42
		LLZ018	6	4031	13754	3809	1.06	3.61	97.6	20.5	1.62	43
	R404A/507*
		LLZ024	8	5024	17142	4703	1.07	3.64	120.2	25.3	2.51	46
		LLZ034	10	7154	24409	6383	1.12	3.82	168.7	35.4	2.51	51

Displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60 Hz

Net weight with oil charge

TR: Ton of Refrigeration,	Standard rating conditions: EN12900	Evaporating temperature: -35 °C	Superheat: 10 K
EER: Energy Efficiency Ratio	Refrigerant: R404A*	Condensing temperature: 40 °C	Subcooling: 0 K
COP: Coefficient Of Performance

All of the compressor performance test after run-in 72h

*R507 performance data are nearly identical to R404A performance data Subject to modification without prior notification.

Data given for motor code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/odsg All of these performance data base on using the injection valve: Sporlan Y1037-1/2-230-3/8ODFX3/8ODF

Model with liquid injection only

	Models		Nominal	Nominal cooling		Power	COP	E.E.R.	Swept	Displace-	Oil charge	Net weight
			tons 60 Hz	capacity		input			volume	ment 		
	Refrigerant		TR	W	Btu/h	W	W/W	Btu/h/W	cm3/rev	m3/h	dm3	kg
		LLZ013	4	3027	10341	2403	1.26	4.30	67.4	11.7	1.62	42
	50 Hz	LLZ015	5	3777	12887	2957	1.28	4.36	83.5	14.5	1.62	42
		LLZ018	6	4439	15146	3415	1.30	4.44	97.6	17	1.62	43
	R404A/507*
		LLZ024	8	5450	18595	4225	1.29	4.40	120.2	20.9	2.51	46
		LLZ034	10	7746	26429	5912	1.31	4.47	168.7	29.4	2.51	51
		LLZ013	4	3694	12604	2896	1.28	4.35	67.4	14.2	1.62	42
	60 Hz	LLZ015	5	4569	16688	3533	1.29	4.41	83.5	17.5	1.62	42
		LLZ018	6	5406	18445	4011	1.35	4.60	97.6	20.5	1.62	43
	R404A/507*
		LLZ024	8	6691	22830	4956	1.35	4.60	120.2	25.3	2.51	46
		LLZ034	10	9528	32510	6727	1.41	4.83	168.7	35.4	2.51	51

Displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60 Hz

Net weight with oil charge

TR: Ton of Refrigeration,	Standard rating conditions: ARI	Evaporating temperature: -31.7 °C	Superheat: 50 K
EER: Energy Efficiency Ratio	Refrigerant: R404A*	Condensing temperature: 40.6 °C	Subcooling: 0 K
COP: Coefficient Of Performance

All of the compressor performance test after run-in 72h

*R507 performance data are nearly identical to R404A performance data Subject to modification without prior notification.

Data given for motor code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/odsg All of these performance data base on using the injection valve: Sporlan Y1037-1/2-230-3/8ODFX3/8ODF

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FRCC.PC.039.A1.02 9

Dimensions

Single compressors LLZ013-015-018

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95.3

133

108.8 Schrader

119.3

78.5- 80.5

Discharge line Ø1.00" - 14UN (2A)

92 - 94

451

238.4

231.9

190.25 - 190.75

Schrader valve and cover

1°	95.3
	124.9
106.4	suction
sight	line
glass	231.9
	190.25 - 190.75

34° 31°

45°±2°

Injection line Ø1.00" - 14UN (2A)

Suction line Ø1.25" - 12UN (2A)

478.2

374.5

Sight glass

302.2

86.4

7.2

Terminal box

Mounting grommet

1.7

C T

	S	41 29.5
	T
	R	5/16" - 18 UNC
	T
		self tapping
		Ø11
		Ø 41
		Recommended torque for
	Ring connect screw terminals	mounting bolts: 11 Nm (±1 Nm)
	C terminal box type

10 FRCC.PC.039.A1.02

Dimensions

Single compressors

LLZ024

		231.9
			108.8
	190.25-190.75		4x Ø19.0 - 20.0
95.25
				124.9
			106.4	suction
133				line	95.25
			sight
			glass			231.9
						190.25-
119.3						190.75
			14°±2°
78.5-80.5	34°	31°	73°
		45°±2°
	Ø183.14-185.14
Discharge line			Injection line
			Ø1.00" - 14UN (2A)
Ø1.25" - 12UN (2A)
			Suction line
			Ø1.75" - 12UN (2A)
92.0-94.0
505.5			Sight glass			532.7
			Schrader valve			414.5
278.4
			and cover		342.2
				126.4
				7.2
			48.4

Terminal box

Mounting grommet

	C	1.7
	T
	S	41 29.5
	T
	R	5/16" - 18 UNC
	T
		self tapping
		Ø11
		Ø 41
		Recommended torque for
	Ring connect screw terminals	mounting bolts: 11 Nm (±1 Nm)
	C terminal box type

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FRCC.PC.039.A1.02 11

Dimensions

Single compressors LLZ034

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	231.9	190.25 - 190.75
		108.8	4x Ø19 - 20
	95.25	Schrader
			124.9
		106.4	suction
	133		line	95.25
		sight
		glass		231.9

			190.25 - 190.75
119.3			14°±2°
78.5 - 80.5	34°	31°45°±2°
			73°
	183.14 - 185.14
Discharge line			Injection line
			Ø1.00" - 14UN (2A)
Ø1.25" - 14UN (2A)
			Suction line
			Ø1.75" - 12UN (2A)
92 - 94
			557.7

530.5

Sight glass

439.5

	Schrader valve	367.2
303.4	and cover

126.4 48.4

7.2

Terminal box

Mounting grommet

1.7

C T

	S	41 29.5
	T
	R	5/16" - 18 UNC
	T
		self tapping
		Ø11
		Ø 41
		Recommended torque for
	Ring connect screw terminals	mounting bolts: 11 Nm (±1 Nm)
	C terminal box type

12 FRCC.PC.039.A1.02

Dimensions

Oil sight glass	LLZ scroll compressors come equipped with a
	threaded oil sight glass with 1"1/8 - 18 UNEF
	connection. It can be used for a visual check
	of the oil amount and condition or it may be
	replaced by an accessory oil management device.
	The oil level must be visible in the sight glass
	during operation.

Oil sight glass

Schrader valve and cap

Schrader	The oil fill and drain connection and gauge port
	is a 1/4" male flare connector incorporating a
	schrader valve.
Suction and discharge	LLZ scroll compressors are factory delivered with rotolock connections only.
connections
	Compressor Models		Rotolock Sizes
		Suction Fitting (in)	Discharge Fitting (in)	Injection Fitting (in)
	LZL013	1"1/4	1"	1"
	LLZ015	1"1/4	1"	1"
	LLZ018	1"1/4	1"	1"
	LLZ024	1"3/4	1"1/4	1"
	LLZ034	1"3/4	1"1/4	1"

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FRCC.PC.039.A1.02 13

Danfoss scroll compressors LLZ are available in 3 different motor voltages as listed below.

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Electrical data, connections and wiring

Motor voltage

Motor voltage code	Code 2	Code 4	Code 9
Nominal voltage	200-220V-3 ph	380-415V - 3 ph	-
50 Hz
Voltage range	180-242V*	342-457 V
Nominal voltage	208-230V-3 ph	460V - 3 ph	380V -3 ph
60 Hz
Voltage range	187-253V*	414-506 V	342-418V

The maximum allowable voltage imbalance is	overheating and possible motor damage. Voltage
2%. Voltage imbalance causes high amperage	imbalance is given by the formula:
over one or several phases, which in turn leads to

		% voltage	| Vavg - V1-2 | + | Vavg - V1-3 | + | Vavg - V2-3 |
			=		x 100
		imbalance		2 x Vavg
	Vavg = Mean voltage of phases 1, 2, 3.			V1-3 = Voltage between phases 1 and 3.
	V1-2 = Voltage between phases 1 and 2.			V2-3 = Voltage between phases 2 and 3.
Wiring connections	R	Danfoss scroll compressors LLZ will only
	compress gas while rotating counter-clockwise
	(when viewed from the compressor top).			C
	Three-phase motors will start and run in either			T
	direction, depending on the phase angles of				S
	the supplied power. Care must be taken during
	installation to ensure that the compressor				T
	operates in the correct direction (see “Phase			R
	sequence and reverse rotation protection”).
				T
	The drawings hereafter show electrical terminal
	labelling and should be used as a reference
	when wiring the compressor. For three phase			Ring connect screw terminals
	applications, the terminals are labelled T1, T2, and
				C terminal box type
	T3. . For single-phase applications the terminals
	are labelled C (common), S (start), and R (run).

Terminal cover mounting

Terminal cover removal

The terminal cover and gasket should be installed	that the two outside tabs of the cover engage the
prior to operation of the compressor. Respect the	terminal box.
"up" marking on gasket and cover and ensure

push

push

push

14 FRCC.PC.039.A1.02