Induction Unit. Installation, Operation and Maintenance. Cooling Fresh Air Clean Air

Induction Unit Installation, Operation and Maintenance Heating Cooling Fresh Air Clean Air i

Models and arrangements 1 Performance data 3 Dimensions and data 12 General information 21 Receiving 21 Safety considerations 22 Unpacking and preparation 23 Handling and installation 24 Chilled/hot water connections 25 Ductwork connections 26 Start-up 26 Air system balancing 27 Cooling/heating system 27 Water system balancing 28 Water treatment 28 Normal operation/maintenance 29 Replacement parts 30 Troubleshooting 30 Equipment start-up checklist 31 IMPORTANT: Submittal documentation, specific to each project, supersedes the general guidelines contained within this manual.

Water control models Ceiling models Nine models are available in low profile wall hung, wall hung and ceiling mounted types. Each model has 4 lengths and 5 nozzle arrangements to meet the desired air flow. The vertical units are best suited for under the window applications to counteract downdrafts during the heating season. Horizontal units are the best choice where the use of full length draperies is desirable and heating requirements are not too severe. Model HC: Horizontal ceiling 2-pipe system Model H4C: Horizontal ceiling 4-pipe system Wall models Model VL: Vertical wall with low profile 2-pipe system Model V4L: Vertical wall low profile 4-pipe system Models and arrangements 1

Wall models Model VH: Vertical wall with heat recovery stack 2-pipe system Model V2H: Vertical wall with heat recovery stack high capacity coil 2-pipe system Model V4H: Vertical wall with heat recovery stack 4-pipe system Model VW: Vertical wall 2-pipe system Model V4W: Vertical wall 4-pipe system 2

Performance Data H4C: Cooling coil capacities (Btuh) Primary Air Cfm F T (Btuh) Capacity 20 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 15 324 1383 (0.89) 20 432 (1.59) (0.94) (0.81) 1820 1872 1888 25 540 2251 2316 2358 2199 2402 (2.48) (1.47) (0.97) (1.26) (0.74) 30 648 (3.57) (2.11) (1.39) (1.82) (1.07) (0.71) 2678 2756 2806 2490 2720 2904 35 756 3192 3250 3233 2766 3022 3227 (2.88) (1.90) (1.10) (2.48) (1.46) (0.97) 40 864 3625 3691 3672 3030 3310 3534 (3.76) (2.48) (1.44) (3.24) (1.91) (1.26) 45 972 4129 4108 3587 3830 (3.14) (1.82) (2.42) (1.60) 50 1080 (3.88) (2.25) (2.99) (1.97) 4565 4542 3854 4116 55 1188 (2.72) (3.62) (2.39) 4974 4113 4392 60 1296 (3.24) (2.85) 5403 4661 65 1405 5832 4923 (3.80) (3.34) 70 1512 (3.88) 5178 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 2375 (0.89) 2612 2884 (1.21) (0.71) 3746 2837 3131 (0.73) (1.58) (0.94) 4060 3050 3367 3627 (0.93) (2.01) (1.19) (0.78) 4362 3255 3594 3870 (1.14) (2.48) (1.46) (0.96) 4655 3453 3811 4105 (1.39) (3.57) (1.77) (1.17) 4940 3643 4022 4331 (1.65) (3.57) (2.11) (1.39) 5217 4225 4550 (1.94) (2.48) (1.63) 5488 4423 4763 (2.25) (2.87) (1.90) 5753 4615 4971 (2.58) (3.30) (2.18) 6012 4803 5173 (2.94) (3.76) (2.48) 6265 5370 (3.32) (2.80) 6515 5563 (3.72) (3.14) 5751 (3.50) 5936 (3.87) 2646 (0.92) 2823 3200 (1.17) (0.72) 4151 2991 3391 (0.56) (1.45) (0.89) 4403 3152 3573 3860 (0.68) (1.75) (1.07) (0.68) 4645 3307 3748 4049 (0.81) (2.09) (1.28) (0.81) 4881 3455 3917 4231 (0.95) (2.45) (1.50) (0.95) 5109 3599 4079 4407 (1.10) (2.84) (1.74) (1.11) 5331 3738 4237 4578 (1.26) (3.26) (2.00) (1.27) 5548 3873 4390 4743 (1.44) (3.71) (2.27) (1.45) 5759 4539 4904 (1.62) (2.57) (1.63) 5966 4684 5060 (1.82) (2.88) (1.83) 6168 4825 5213 (2.03) (3.21) (2.04) 6367 4963 5362 (2.25) (3.56) (2.26) 6561 5098 5508 (2.48) (3.92) (2.50) 6752 5650 (2.72) (2.74) 6940 5790 (2.97) (2.99) 7125 5927 (3.24) (3.26) 7307 6061 (3.51) (3.54) 7486 6194 (3.80) (3.83) 2852 (0.95) 2995 (1.15) 3131 3545 (1.36) (0.81) 3263 3693 (1.60) (0.95) 3389 3836 4215 (1.86) (1.10) (0.72) 5027 3511 3974 4366 (0.75) (2.13) (1.26) (0.83) 5209 3629 4108 4513 (0.86) (2.43) (1.44) (0.95) 5385 3743 4238 4656 (0.87) (2.74) (1.62) (1.07) 5557 3855 4364 4794 5279 (1.09) (3.08) (1.82) (1.20) (0.69) 5725 3963 4486 4929 5427 (1.21) (3.43) (2.03) (1.34) (0.77) 5888 4069 4606 5060 5572 (1.34) (3.80) (2.25) (1.48) (0.86) 6048 4722 5188 5713 (1.48) (2.48) (1.63) (0.95) 6205 4836 5313 5851 (1.63) (2.72) (1.79) (1.04) 6359 4948 5436 5986 (1.78) (2.97) (1.96) (1.14) 6509 5057 5556 6118 (1.94) (3.24) (2.13) (1.24) 6657 5164 5673 6247 (2.10) (3.51) (2.32) (1.34) 6802 5269 5788 6374 (2.27) (3.80) (2.51) (1.45) 6944 5901 6498 (2.45) (2.70) (1.57) 7084 6012 6620 (2.64) (2.91) (1.69) 7222 6121 6741 (2.83) (3.12) (1.81) 7358 6229 6859 (3.03) (3.34) (1.94) 7492 6334 6975 (3.23) (3.56) (2.07) 7624 6438 7089 (3.44) (3.80) (2.20) 7754 7202 (3.66) (2.34) 7882 7313 (3.89) (2.49) Notes: Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. All ratings include allowance for lint screens. T = trm - tew (trm = room temperature and tew = entering water temperature). All ratings include reduction in capacity for double coil (4-pipe). Ratings 3

Performance Data HC: Cooling coil capacities (Btuh) Primary Air Cfm F T (Btuh) Capacity 20 15 324 20 432 25 540 30 648 35 756 40 864 45 972 50 1080 55 1188 60 1296 65 1405 70 1512 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 1537 (0.89) 2022 2080 (1.59) (0.94) 2501 2573 2620 (2.48) (1.47) (0.97) 2976 3062 3118 (3.57) (2.11) (1.39) 3546 3611 (2.88) (1.90) 4028 4101 (3.76) (2.48) 4588 (3.14) 5073 (3.88) 2098 (0.81) 2443 2669 (1.26) (0.74) 2767 3022 3227 (1.82) (1.07) (0.71) 3592 3074 3357 3585 (1.10) (2.48) (1.46) (0.97) 4080 3367 3678 3927 (1.44) (3.24) (1.91) (1.26) 4564 3986 4256 (1.82) (2.42) (1.60) 5046 4283 4573 (2.25) (2.99) (1.97) 5526 4570 4880 (2.72) (3.62) (2.39) 6004 5179 (3.24) (2.85) 5470 (3.34) 2639 (0.89) 2902 3204 (1.21) (0.71) 4163 3152 3479 (0.73) (1.58) (0.94) 4511 3389 3742 4030 (0.93) (2.01) (1.19) (0.78) 4847 3617 3993 4300 (1.14) (2.48) (1.46) (0.96) 5173 3836 4235 4561 (1.39) (3.00) (1.77) (1.17) 5489 4048 4469 4812 (1.65) (3.57) (2.11) (1.39) 5797 4695 5056 (1.94) (2.48) (1.63) 6098 4915 5293 (2.25) (2.87) (1.90) 6392 5128 5523 (2.58) (3.30) (2.18) 6680 5337 5747 (2.94) (3.76) (2.48) 6962 5966 (3.32) (2.80) 6181 (3.14) 6390 (3.50) 2940 (0.92) 3137 3555 (1.17) (0.72) 4612 3324 3767 (0.56) (1.45) (0.89) 4892 3503 3970 4289 (0.68) (1.75) (1.07) (0.68) 5162 3674 4164 4499 (0.81) (2.09) (1.28) (0.81) 5423 3839 4352 4702 (0.95) (2.45) (1.50) (0.95) 5677 3999 4533 4897 (1.10) (2.84) (1.74) (1.11) 5924 4154 4708 5086 (1.26) (3.26) (2.00) (1.27) 6164 4304 4878 5270 (1.44) (3.71) (2.27) (1.45) 6399 5043 5449 (1.62) (2.57) (1.63) 6629 5204 5622 (1.82) (2.88) (1.83) 6854 5361 5792 (2.03) (3.21) (2.04) 7074 5514 5958 (2.25) (3.56) (2.26) 7290 5664 6120 (2.48) (3.92) (2.50) 7503 6278 (2.72) (2.74) 7711 6433 (2.97) (2.99) 7917 6586 (3.24) (3.26) 8119 6735 (3.51) (3.54) 3169 (0.95) 3328 (1.15) 3479 3939 (1.36) (0.81) 3625 4104 (1.60) (0.95) 3765 4263 4683 (1.86) (1.10) (0.72) 5586 3901 4416 4852 (0.75) (2.13) (1.26) (0.83) 5788 4032 4564 5015 (0.86) (2.43) (1.44) (0.95) 5984 4159 4709 5173 (0.97) (2.74) (1.62) (1.07) 6175 4283 4849 5327 5866 (1.09) (3.08) (1.82) (1.20) (0.69) 6361 4403 4985 5476 6030 (1.21) (3.43) (2.03) (1.34) (0.77) 6543 4521 5118 5622 6191 (1.34) (3.80) (2.25) (1.48) (0.86) 6721 5247 5765 6348 (1.48) (2.48) (1.63) (0.95) 6895 5374 5904 6501 (1.63) (2.72) (1.79) (1.04) 7065 5498 6040 6651 (1.78) (2.97) (1.96) (1.14) 7232 5619 6173 6797 (1.94) (3.24) (2.13) (1.24) 7396 5738 ) 6303 6941 (2.10) (3.51) (2.32) (1.34) 7558 5854 6431 7082 (2.27) (3.80) (2.51) (1.45) 7716 6557 7220 (2.45) (2.70) (1.57) 7872 6680 7356 (2.64) (2.91) (1.69) 8025 6802 7490 (2.83) (3.12) (1.81) 8176 6921 7621 (3.03) (3.34) (1.94) 8325 7038 7750 (3.23) (3.56) (2.07) 8471 7154 7877 (3.44) (3.80) (2.20) 8002 (2.34) 8126 (2.49) Notes: Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. All ratings include allowance for lint screens. T = trm - tew (trm = room temperature and tew = entering water temperature). All ratings include reduction in capacity for double coil (4-pipe). 4

Performance Data V2H: Cooling coil capacities (Btuh) Primary Air Cfm F T (Btuh) Capacity 20 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 15 324 2131 (0.89) 20 432 (1.59) (0.94) (0.81) 2803 2884 2839 25 540 3467 3567 3632 3306 3611 (2.48) (1.47) (0.97) (1.26) (0.74) 30 648 (3.57) (2.11) (1.39) (1.82) (1.07) (0.71) 4125 4244 4321 3744 4089 4367 35 756 4915 5005 4979 4159 4543 4851 (2.88) (1.90) (1.10) (2.48) (1.46) (0.97) 40 864 5582 5684 5655 4556 4976 5314 (3.76) (2.48) (1.44) (3.24) (1.91) (1.26) 45 972 6359 6326 5393 5758 (3.14) (1.82) (2.42) (1.60) 50 1080 (3.88) (2.25) (2.99) (1.97) 7031 6995 5795 6188 55 1188 (2.72) (3.62) (2.39) 7660 6184 6603 60 1296 (3.24) (2.85) 8332 7007 65 1405 8981 7400 (3.80) (3.34) 70 1512 (3.88) 7784 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 3484 (0.89) 3831 4230 (1.21) (0.71) 5632 4160 4593 (0.73) (1.58) (0.94) 6103 4474 4939 5319 (0.93) (2.01) (1.19) (0.78) 6558 4775 5271 5677 (1.14) (2.48) (1.46) (0.96) 6999 5064 5590 6021 (1.39) (3.00) (1.77) (1.17) 7427 5343 5899 6353 (1.65) (3.57) (2.11) (1.39) 7844 6197 6674 (1.94) (2.48) (1.63) 8251 6487 6987 (2.25) (2.87) (1.90) 8648 6769 7290 (2.58) (3.30) (2.18) 9038 7045 7587 (2.94) (3.76) (2.48) 9419 7876 (3.32) (2.80) 9794 8159 (3.71) (3.14) 8435 (3.50) 8707 (3.87) 3784 (0.92) 4037 4576 (1.17) (0.72) 6088 4278 4849 (0.56) (1.45) (0.89) 6457 4508 5109 5520 (0.68) (1.75) (1.07) (0.68) 6813 4729 5360 5791 (0.81) (2.09) (1.28) (0.81) 7158 4941 5601 6051 (0.95) (2.45) (1.50) (0.95) 7493 5147 5834 6303 (1.10) (2.84) (1.74) (1.11) 7819 5346 6059 6546 (1.26) (3.26) (2.00) (1.27) 8137 5539 6278 6783 (1.44) (3.71) (2.27) (1.45) 8447 6491 7012 (1.62) (2.57) (1.63) 8750 6698 7236 (1.82) (2.88) (1.83) 9047 6900 7455 (2.03) (3.21) (2.04) 9338 7097 7668 (2.25) (3.56) (2.26) 9624 7290 7876 (2.48) (3.92) (2.50) 9904 8080 (2.72) (2.74) 10179 8280 (2.97) (2.99) 10450 8476 (3.24) (3.26) 10717 8668 (3.51) (3.54) 10979 8857 (3.80) (3.83) 3974 (0.95) 4173 (1.15) 4363 4939 (1.36) (0.81) 4546 5146 (1.60) (0.95) 4722 5345 5873 (1.86) (1.10) (0.72) 7189 4892 5538 6084 (0.75) (2.13) (1.26) (0.83) 7449 5056 5724 6289 (0.86) (2.43) (1.44) (0.95) 7701 5216 5905 6487 (0.97) (2.74) (1.62) (1.07) 7947 5371 6080 6680 7356 (1.09) (3.08) (1.82) (1.20) (0.69) 8187 5522 6251 6868 7562 (1.21) (3.43) (2.03) (1.34) (0.77) 8421 5669 6417 7050 7764 (1.34) (3.80) (2.25) (1.48) (0.86) 8649 6580 7229 7960 (1.48) (2.48) (1.63) (0.95) 8873 6739 7403 8152 (1.63) (2.72) (1.79) (1.04) 9093 6874 7574 8340 (1.78) (2.97) (1.96) (1.14) 9308 7046 7741 8524 (1.94) (3.24) (2.13) (1.24) 9519 7195 7905 8704 (2.10) (3.51) (2.32) (1.34) 9727 7341 8065 8881 (2.27) (3.80) (2.51) (1.45) 9931 8223 9054 (2.45) (2.70) (1.57) 10131 8377 9225 (2.64) (2.91) (1.69) 10328 8529 9392 (2.83) (3.12) (1.81) 10523 8679 9557 (3.03) (3.34) (1.94) 10714 8826 9719 (3.23) (3.56) (2.07) 10902 8971 9878 (3.44) (3.80) (2.20) 11088 10035 (3.89) (2.34) 11272 10190 (3.89) (2.49) Notes: Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. All ratings include allowance for lint screens. T = trm - tew (trm = room temperature and tew = entering water temperature). 5

Performance Data V4H: Cooling coil capacities (Btuh) Primary Air Cfm F T (Btuh) Capacity 20 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 15 324 1851 (0.89) 20 432 (1.59) (0.94) (0.81) 2436 2505 2375 25 540 3012 3100 3156 2765 3021 (2.48) (1.47) (0.97) (1.26) (0.74) 30 648 (3.57) (2.11) (1.39) (1.82) (1.07) (0.71) 3584 3687 3754 3132 3421 3652 35 756 4270 4348 4326 3479 3800 4057 (2.88) (1.90) (1.10) (2.48) (1.46) (0.97) 40 864 4850 4939 4912 3811 4162 4445 (3.76) (2.48) (1.44) (3.24) (1.91) (1.26) 45 972 5525 5496 4510 4816 (3.14) (1.82) (2.42) (1.60) 50 1080 (3.88) (2.25) (2.99) (1.97) 6108 6077 4847 5175 55 1188 (2.72) (3.62) (2.39) 6654 5172 5523 60 1296 (3.24) (2.85) 7230 5861 65 1405 7812 6190 (3.80) (3.34) 70 1512 (3.88) 6511 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 2803 (0.89) 3083 3403 (1.21) (0.71) 4710 3347 3695 (0.73) (1.58) (0.94) 5104 3000 3974 4280 (0.93) (2.01) (1.19) (0.78) 5485 3841 4241 4568 (1.14) (2.48) (1.46) (0.96) 5854 4074 4497 4894 (1.39) (3.00) (1.77) (1.17) 6212 4300 4746 5111 (1.65) (3.57) (2.11) (1.39) 6562 4986 5370 (1.94) (2.48) (1.63) 6901 5219 5621 (2.25) (2.87) (1.90) 7233 5446 5865 (2.58) (3.30) (2.18) 7559 5667 6104 (2.94) (3.76) (2.48) 7878 6336 (3.32) (2.80) 8191 6564 (3.72) (3.14) 6787 (3.50) 7005 (3.87) 2900 (0.92) 3094 3508 (1.17) (0.72) 4899 3279 3716 (0.56) (1.45) (0.89) 5195 3455 3916 4231 (0.68) (1.75) (1.07) (0.68) 5482 3625 4108 4439 (0.81) (2.09) (1.28) (0.81) 5760 3788 4293 4591 (0.95) (2.84) (1.50) (0.95) 6030 3945 4471 4831 (1.10) (2.84) (1.74) (1.11) 6291 4098 4645 5018 (1.26) (3.26) (2.00) (1.27) 6547 4245 4812 5200 (1.44) (3.71) (2.27) (1.27) 6796 4975 5375 (1.62) (2.57) (1.63) 7090 5134 5547 (1.82) (2.88) (1.83) 7280 5289 5714 (2.03) (3.21) (2.04) 7513 5440 5878 (2.25) (3.56) (2.26) 7743 5588 6037 (2.48) (3.92) (2.50) 7968 6194 (2.72) (2.74) 8190 6397 (2.97) (2.99) 8408 6497 (3.24) (3.26) 8622 6644 (3.51) (3.54) 8834 6790 (3.80) (3.83) 2893 (0.95) 3038 (1.15) 3177 3596 (1.36) (0.81) 3309 3746 (1.60) (0.95) 3438 3899 (1.86) (1.10) 5511 3562 4032 (0.75) (2.13) (1.26) 5710 3682 4167 (0.86) (2.43) (1.44) 5903 3797 4300 (0.97) (2.74) (1.62) 6092 3910 4426 (1.09) (3.08) (1.82) 6275 4020 4551 (1.21) (3.43) (2.03) 6454 4127 4672 (1.34) (3.80) (2.25) 6630 4790 5262 5795 (1.48) (2.48) (1.63) (0.95) 6802 4906 5390 5935 (1.63) (2.72) (1.79) (1.04) 6970 5018 5514 6072 (1.78) (2.97) (1.96) (1.14) 7134 5130 5636 6205 (1.94) (3.24) (2.13) (1.24) 7296 5238 5757 6337 (2.10) (3.51) (2.32) (1.34) 7455 5344 5871 6465 (2.27) (3.80) (2.51) (1.45) 7612 5986 6592 (2.45) (2.70) (1.57) 7765 6099 6716 (2.64) (2.91) (1.69) 7917 6210 6837 (2.83) (3.12) (1.81) 8065 6318 6957 (3.03) (3.34) (1.94) 8212 6425 7076 (3.23) (3.56) (2.07) 8357 6531 7191 (3.44) (3.80) (2.20) 8500 7306 (3.66) (2.34) 8640 7418 (3.89) (2.49) Notes: Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. T = trm - tew (trm = room temperature and tew = entering water temperature). All ratings include reduction in capacity for double coil (4-pipe system). 6

Performance Data V4L: Cooling coil capacities (Btuh) Primary Air Cfm F T (Btuh) Capacity 20 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 15 324 1517 (0.89) 20 432 (1.59) (0.94) (0.81) 1996 2054 1979 25 540 2469 2540 2587 2304 2516 (2.48) (1.47) (0.97) (1.26) (0.74) 30 648 (3.57) (2.11) (1.39) (1.82) (1.07) (0.71) 2938 3022 3079 2609 2850 3043 35 756 3500 3565 3546 2899 3166 3381 (2.88) (1.90) (1.10) (2.48) (1.46) (0.97) 40 864 3976 4048 4027 3175 3468 3703 (3.76) (2.48) (1.44) (3.24) (1.91) (1.26) 45 972 4529 4506 3758 4013 (3.14) (2.25) (2.42) (1.60) 50 1080 (3.88) (2.25) (2.99) (1.97) 5007 4981 4039 4312 55 1188 (2.72) (3.62) (2.39) 5454 4310 4602 60 1296 (3.24) (2.85) 5926 4883 65 1405 6396 5158 (3.80) (3.34) 70 1512 (3.88) 5425 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 2375 (0.89) 2612 2884 (1.21) (0.71) 3926 2837 3131 (0.73) (1.58) (0.94) 4254 3050 3368 3627 (0.93) (2.01) (1.19) (0.78) 4571 3255 3594 3870 (1.14) (2.48) (1.46) (0.96) 4958 3453 3812 4105 (1.39) (3.00) (1.77) (1.17) 5176 3643 4022 4335 (1.65) (3.57) (2.11) (1.39) 5467 4226 4559 (1.94) (2.48) (1.63) 5750 4424 4769 (2.25) (2.87) (1.90) 6028 4615 4971 (2.58) (3.30) (2.18) 6300 4803 5172 (2.94) (3.76) (2.48) 6565 5370 (3.32) (2.80) 6826 5563 (3.72) (3.14) 5751 (3.50) 5936 (3.87) 2523 (0.92) 2691 3050 (1.17) (0.72) 4151 2852 3231 (0.56) (1.45) (0.89) 4403 3005 3407 3680 (0.68) (1.75) (1.07) (0.68) 4646 3152 3573 3861 (0.81) (2.09) (1.28) (0.81) 4881 3294 3734 4034 (0.95) (2.45) (1.50) (0.95) 5109 3431 3889 4202 (1.10) (2.84) (1.74) (1.11) 5332 3564 4039 4364 (1.26) (3.26) (2.00) (1.27) 5548 3693 4183 4522 (1.44) (3.71) (2.27) (1.45) 5759 4327 4675 (1.62) (2.57) (1.63) 5966 4465 4824 (1.82) (2.88) (1.83) 6169 4600 4970 (2.03) (3.21) (2.04) 6367 4731 5112 (2.25) (3.56) (2.26) 6561 4860 5251 (2.48) (3.92) (2.50) 6753 5387 (2.72) (2.74) 6940 5520 (2.97) (2.99) 7126 5651 (3.24) (3.26) 7307 5780 (3.51) (3.54) 7485 5905 (3.80) (3.83) 2560 (0.95) 2687 (1.15) 2809 3181 (1.36) (0.81) 2927 3314 (1.60) (0.95) 3040 3442 3782 (1.86) (1.10) (0.72) 4793 3151 3566 3918 (0.75) (2.13) (1.26) (0.83) 4966 3256 3686 4050 (0.86) (2..43) (1.44) (0.95) 5134 3359 3803 4177 (0.97) (2.74) (1.62) (1.07) 5298 3459 3915 4301 4736 (1.09) (3.08) (1.82) (1.20) (0.69) 5458 3556 4025 4423 4870 (1.21) (3.43) (2.03) (1.34) (0.77) 5614 3651 4133 4540 5000 (1.34) (3.80) (2.25) (1.48) (0.86) 5766 4237 4655 5126 (1.48) (2.48) (1.63) (0.95) 5916 4340 4768 5250 (1.63) (2.72) (1.79) (1.04) 6061 4440 4877 5370 (1.78) (2.97) (1.96) (1.14) 6205 4537 4985 5489 (1.94) (3.24) (2.13) (1.24) 6346 4633 5090 5605 (2.10) (3.51) (2.32) (1.34) 6485 4727 5194 5719 (2.27) (3.80) (2.51) (1.45) 6620 5295 5830 (2.45) (2.70) (1.57) 6754 5395 5940 (2.64) (2.91) (1.69) 6885 5493 6048 (2.83) (3.12) (1.81) 7075 5589 6154 (3.03) (3.34) (1.94) 7142 5683 6259 (3.23) (3.56) (2.07) 7268 5777 6361 (3.44) (3.80) (2.20) 7392 6462 (3.66) (2.34) 7515 6560 (3.89) (2.49) Notes: Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. All ratings include allowance for lint screens. T = trm - tew (trm = room temperature and tew = entering water temperature). All ratings include reduction in capacity for double coil (4-pipe). 7

Performance Data V4W: Cooling coil capacities (Btuh) Primary Air Cfm Notes: F T (Btuh) Capacity 20 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 15 324 1383 (0.89) 20 432 (1.59) (0.94) (0.81) 1820 1872 1888 25 540 2251 2316 2358 2199 2402 (2.48) (1.47) (0.97) (1.26) (0.74) 30 648 (3.57) (2.11) (1.39) (1.82) (1.07) (0.71) 2678 2756 2806 2490 2720 2904 35 756 3192 3250 3233 2766 3022 3227 (2.88) (1.90) (1.10) (2.48) (1.46) (0.97) 40 864 3625 3691 3672 3030 3310 3534 (3.76) (2.48) (1.44) (3.24) (1.91) (1.26) 45 972 4129 4108 3587 3830 (3.14) (1.82) (2.42) (1.60) 50 1080 (3.88) (2.25) (2.99) (1.97) 4565 4542 3854 4116 55 1188 (2.72) (3.62) (2.39) 4974 4113 4392 60 1296 (3.24) (2.85) 5403 4661 65 1405 5832 4923 (3.80) (3.34) 70 1512 (3.88) 5178 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). 2375 (0.89) 2612 2884 (1.21) (0.71) 3746 2837 3131 (0.73) (1.58) (0.94) 4060 3050 3367 3627 (0.93) (2.01) (1.19) (0.78) 4362 3255 3594 3870 (1.14) (2.48) (1.46) (0.96) 4655 3453 3811 4105 (1.39) (3.00) (1.77) (1.17) 4940 3643 4022 4331 (1.65) (3.57) (2.11) (1.39) 5217 4225 4550 (1.94) (2.48) (1.63) 5488 4423 4763 (2.25) (2.87) (1.90) 5753 4615 4971 (2.58) (3.30) (2.18) 6012 4803 5173 (2.94) (3.76) (2.48) 6265 5370 (3.32) (2.80) 6515 5563 (3.72) (3.14) 5751 (3.50) 5936 (3.87) 2646 (0.92) 2823 3200 (1.17) (0.72) 4151 2991 3391 (0.56) (1.45) (0.89) 4403 3152 3573 3860 (0.68) (1.75) (1.07) (0.68) 4645 3307 3748 4049 (0.81) (2.09) (1.28) (0.81) 4881 3455 3917 4231 (0.95) (2.45) (1.50) (0.95) 5109 3599 4079 4407 (1.10) (2.84) (1.74) (1.11) 5331 3738 4237 4578 (1.26) (3.26) (2.00) (1.27) 5548 3873 4390 4743 (1.44) (3.71) (2.27) (1.45) 5759 4539 4904 (1.62) (2.57) (1.63) 5966 4684 5060 (1.82) (2.88) (1.83) 6168 4825 5213 (2.03) (3.21) (2.04) 6367 4963 5362 (2.25) (3.56) (2.26) 6561 5098 5508 (2.48) (3.92) (2.50) 6752 5650 (2.72) (2.74) 6940 5790 (2.97) (2.99) 7125 5927 (3.24) (3.26) 7307 6061 (3.51) (3.54) 7486 6194 (3.80) (3.83) The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. All ratings include allowance for lint screens. 2852 (0.95) 2995 (1.15) 3131 3545 (1.36) (0.81) 3263 3693 (1.60) (0.95) 3389 3836 4215 (1.86) (1.10) (0.72) 5027 3511 3974 4366 (0.75) (2.13) (1.26) (0.83) 5209 3629 4108 4513 (0.86) (2.43) (1.44) (0.95) 5385 3743 4238 4656 (0.97) (2.74) (1.62) (1.07) 5557 3855 4364 4794 5279 (1.09) (3.08) (1.82) (1.20) (0.69) 5725 3963 4486 4929 5427 (1.21) (3.43) (2.03) (1.34) (0.77) 5888 4069 4606 5060 5572 (1.34) (3.80) (2.25) (1.48) (0.86) 6048 4722 5188 5713 (1.48) (2.48) (1.63) (0.95) 6205 4836 5313 5851 (1.63) (2.72) (1.79) (1.04) 6359 4948 5436 5986 (1.78) (2.97) (1.96) (1.14) 6509 5057 5556 6118 (1.94) (3.24) (2.13) (1.24) 6657 5164 5673 6247 (2.10) (3.51) (2.32) (1.34) 6802 5269 5788 6374 (2.27) (3.80) (2.51) (1.45) 6944 5901 6498 (2.45) (2.70) (1.57) 7084 6012 6620 (2.64) (2.91) (1.69) 7222 6121 6741 (2.83) (3.12) (1.81) 7358 6229 6859 (3.03) (3.34) (1.94) 7492 6334 6975 (3.23) (3.56) (2.07) 7624 6438 7089 (3.44) (3.80) (2.20) 7754 7202 (3.66) (2.34) 7882 7313 (3.89) (2.49) T = trm - tew (trm = room temperature and tew = entering water temperature). All ratings include reduction in capacity for double coil (4-pipe system). 8

Performance Data VH: Cooling coil capacities (Btuh) Primary Air Cfm F T (Btuh) Capacity 20 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 15 324 1969 (0.89) 20 432 (1.59) (0.94) (0.81) 2591 2665 2581 25 540 3204 3297 3357 3005 3283 (2.48) (1.47) (0.97) (1.26) (0.74) 30 648 (3.57) (2.11) (1.39) (1.82) (1.07) (0.71) 3812 3922 3994 3404 3718 3970 35 756 4543 4626 4602 3781 4130 4410 (2.88) (1.90) (1.10) (2.48) (1.46) (0.97) 40 864 5159 5254 5226 4142 4524 4831 (3.76) (2.48) (1.44) (3.24) (1.91) (1.26) 45 972 5878 5847 4902 5235 (3.14) (1.82) (2.42) (1.60) 50 1080 (3.88) (2.25) (2.99) (1.97) 6498 6465 5268 5625 55 1188 (2.72) (3.62) (2.39) 7079 5622 6003 60 1296 (3.24) (2.85) 7691 6370 65 1405 8301 6728 (3.80) (3.34) 70 1512 (3.88) 7077 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 3114 (0.89) 3425 3781 (1.21) (0.71) 5120 3719 4106 (0.73) (1.58) (0.94) 5548 4000 4415 4755 (0.93) (2.01) (1.19) (0.78) 5962 4268 4712 5075 (1.14) (2.48) (1.46) (0.96) 6363 4527 4997 5382 (1.39) (3.00) (1.77) (1.17) 6752 4777 5273 5679 (1.65) (3.57) (2.11) (1.39) 7131 5540 5966 (1.94) (2.48) (1.63) 7501 5799 6246 (2.25) (2.87) (1.90) 7862 6051 6517 (2.58) (3.30) (2.18) 8216 6297 6782 (2.94) (3.76) (2.48) 8563 7040 (3.32) (2.80) 8903 7293 (3.72) (3.14) 7541 (3.50) 7783 (3.87) 3296 (0.92) 3516 3986 (1.17) (0.72) 5443 3726 4223 (0.56) (1.45) (0.89) 5772 3926 4450 4808 (0.68) (1.75) (1.07) (0.68) 6091 4119 4668 5044 (0.81) (2.09) (1.28) (0.81) 6399 4304 4878 5271 (0.95) (2.45) (1.50) (0.95) 6699 4483 5081 5490 (1.10) (2.84) (1.74) (1.11) 6990 4656 5278 5702 (1.26) (3.26) (2.00) (1.27) 7274 4824 5468 5908 (1.44) (3.71) (2.27) (1.45) 7551 5653 6108 (1.62) (2.57) (1.63) 7822 5834 6303 (1.82) (2.88) (1.83) 8088 6010 6493 (2.03) (3.21) (2.04) 8348 6182 6679 (2.25) (3.56) (2.26) 8603 6350 6860 (2.48) (3.92) (2.50) 8853 7038 (2.72) (2.74) 9100 7212 (2.97) (2.99) 9342 7383 (3.24) (3.26) 9580 7550 (3.51) (3.54) 9815 7715 (3.80) (3.83) 3404 (0.95) 3574 (1.15) 3737 4230 (1.36) (0.81) 3893 4407 (1.60) (0.95) 4044 4578 (1.86) (1.10) 6262 4190 4743 (0.75) (2.13) (1.26) 6488 4331 4902 (0.86) (2.43) (1.44) 6708 4467 5057 (0.97) (2.74) (1.62) 6922 4600 5207 (1.09) (3.08) (1.82) 7131 4729 5354 (1.21) (3.43) (2.03) 7334 4855 5496 (1.34) (3.80) (2.25) 7534 5635 6191 6818 (1.48) (2.48) (1.63) (0.95) 7729 5771 6341 6982 (1.63) (2.72) (1.79) (1.04) 7920 5904 6487 7143 (1.78) (2.97) (1.96) (1.14) 8107 6035 6630 7300 (1.94) (3.24) (2.13) (1.24) 8291 6162 6770 7455 (2.10) (3.51) (2.32) (1.34) 8472 6287 6907 7606 (2.27) (3.80) (2.51) (1.45) 8650 7042 7755 (2.45) (2.70) (1.57) 8824 7175 7901 (2.64) (2.91) (1.69) 8996 7305 8044 (2.83) (3.12) (1.81) 9165 7433 8185 (3.03) (3.34) (1.94) 9332 7559 8324 (3.23) (3.56) (2.07) 9496 7683 8460 (3.44) (3.80) (2.20) 9658 8595 (3.66) (2.34) 9818 8727 (3.89) (2.49) Notes: Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. All ratings include allowance for lint screens. T = trm - tew (trm = room temperature and tew = entering water temperature). 9

Performance Data VL: Cooling coil capacities (Btuh) Primary Air Cfm F T (Btuh) Capacity 20 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 15 324 1614 (0.89) 20 432 (1.59) (0.94) (0.81) 2123 2185 2151 25 540 2626 2702 2752 2504 2735 (2.48) (1.47) (0.97) (1.26) (0.74) 30 648 (3.57) (2.11) (1.39) (1.82) (1.07) (0.71) 3125 3215 3274 2836 3098 3308 35 756 3724 3792 3772 3151 3441 3675 (2.88) (1.90) (1.10) (2.48) (1.46) (0.97) 40 864 4229 4306 4284 3451 3770 4025 (3.76) (2.48) (1.44) (3.24) (1.91) (1.26) 45 972 4818 4793 4085 4362 (3.14) (1.82) (2.42) (1.60) 50 1080 (3.88) (2.25) (2.99) (1.97) 5326 5299 4390 4687 55 1188 (2.72) (3.62) (2.39) 5803 4685 5002 60 1296 (3.24) (2.85) 6304 5308 65 1405 6804 5606 (3.80) (3.34) 70 1512 (3.88) 5897 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 2639 (0.89) 2902 3204 (1.21) (0.71) 4267 3152 3479 (0.73) (1.58) (0.94) 4624 3389 3742 4030 (0.93) (2.01) (1.19) (0.78) 4968 3617 3993 4300 (1.14) (2.48) (1.46) (0.96) 5302 3836 4235 4561 (1.39) (3.00) (1.77) (1.17) 5626 4048 4469 4812 (1.65) (3.57) (2.11) (1.39) 5942 4695 5056 (1.94) (2.48) (1.63) 6250 4915 5293 (2.25) (2.87) (1.90) 6552 5128 5523 (2.58) (3.30) (2.18) 6847 5337 5747 (2.94) (3.76) (2.48) 7136 5966 (3.32) (2.80) 7419 6181 (3.72) (3.14) 6390 (3.50) 6596 (3.87) 2867 (0.92) 3058 3466 (1.17) (0.72) 4612 3241 3673 (0.56) (1.45) (0.89) 4892 3415 3871 4182 (0.68) (1.75) (1.07) (0.68) 5162 3582 4060 4387 (0.81) (2.09) (1.28) (0.81) 5423 3743 4243 4584 (0.95) (2.45) (1.50) (0.95) 5677 3899 4419 4775 (1.10) (2.84) (1.74) (1.11) 5924 4050 4590 4959 (1.26) (3.26) (2.00) (1.27) 6164 4196 4756 5138 (1.44) (3.71) (2.27) (1.45) 6399 4917 5312 (1.62) (2.57) (1.63) 6629 5074 5482 (1.82) (2.88) (1.83) 6854 5227 5647 (2.03) (3.21) (2.04) 7074 5376 5809 (2.25) (3.56) (2.26) 7290 5523 5967 (2.48) (3.92) (2.50) 7503 6121 (2.72) (2.74) 7711 6272 (2.97) (2.99) 7917 6421 (3.24) (3.26) 8119 6567 (3.51) (3.54) 8317 6710 (3.80) (3.83) 3011 (0.95) 3161 (1.15) 3305 3742 (1.36) (0.81) 3444 3898 (1.60) (0.95) 3577 4049 4449 (1.86) (1.10) (0.72) 5446 3706 4195 4609 (0.75) (2.13) (1.26) (0.83) 5643 3830 4336 4764 (0.86) (2.43) (1.44) (0.95) 5834 3951 4473 4914 (0.97) (2.74) (1.62) (1.07) 6020 4069 4606 5060 5572 (1.09) (3.08) (1.82) (1.20) (0.69) 6202 4183 4735 5203 5729 (1.21) (3.43) (2.03) (1.34) (0.77) 6379 4295 4862 5341 5881 (1.34) (3.80) (2.25) (1.48) (0.86) 6552 4985 5476 6030 (1.48) (2.48) (1.63) (0.95) 6722 5105 5609 6176 (1.63) (2.72) (1.79) (1.04) 6888 5223 5738 6318 (1.78) (2.97) (1.96) (1.14) 7051 5338 5864 6457 (1.94) (3.24) (2.13) (1.24) 7211 5451 5988 6594 (2.10) (3.51) (2.32) (1.34) 7369 5561 6110 6728 (2.27) (3.80) (2.51) (1.45) 7523 6229 6859 (2.45) (2.70) (1.57) 7675 6346 6988 (2.64) (2.91) (1.69) 7824 6462 7115 (2.83) (3.12) (1.81) 7972 6575 7240 (3.03) (3.34) (1.94) 8116 6686 7363 (3.23) (3.56) (2.07) 8259 6796 7483 (3.44) (3.80) (2.20) 8400 7602 (3.66) (2.34) 8539 7719 (3.89) (2.49) Notes: Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. All ratings include allowance for lint screens. T = trm - tew (trm = room temperature and tew = entering water temperature). 10

Performance Data VW: Cooling coil capacities (Btuh) Primary Air Cfm F T (Btuh) Capacity 20 Nozzle Arrangement F G H J K Unit Size 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 24" 32" 40" 52" 15 324 1537 (0.89) 20 432 (1.59) (0.94) (0.81) 2022 2080 2098 25 540 2501 2573 2620 2443 2669 (2.48) (1.47) (0.97) (1.26) (0.74) 30 648 (3.57) (2.11) (1.39) (1.82) (1.07) (0.71) 2976 3062 3118 2767 3022 3227 35 756 3546 3611 3592 3074 3357 3585 (2.88) (1.90) (1.10) (2.48) (1.46) (0.97) 40 864 4028 4101 4080 3367 3678 3927 (3.76) (2.48) (1.44) (3.24) (1.91) (1.26) 45 972 4588 4564 3986 4256 (3.14) (1.82) (2.42) (1.60) 50 1080 (3.88) (2.25) (2.99) (1.97) 5073 5046 4283 4573 55 1188 (2.72) (3.62) (2.39) 5526 4570 4880 60 1296 6004 5179 (3.24) (2.85) 65 1405 (3.34) 5470 70 1512 75 1620 80 1730 85 1838 90 1942 95 2055 100 2160 105 2265 110 2375 115 2482 120 2590 125 2700 130 2810 135 2918 140 3022 145 3130 150 3240 155 3350 160 3460 165 3565 170 3675 2639 (0.89) 2902 3204 (1.21) (0.71) 4163 3152 3479 (0.73) (1.58) (0.94) 4511 3389 3742 4030 (0.93) (2.01) (1.19) (0.78) 4847 3617 3993 4300 (1.14) (2.48) (1.46) (0.96) 5173 3836 4235 4561 (1.39) (3.00) (1.77) (1.17) 5489 4048 4469 4812 (1.65) (3.57) (2.11) (1.39) 5797 4695 5056 (1.94) (2.48) (1.63) 6098 4915 5293 (2.25) (2.87) (1.90) 6392 5128 5523 (2.58) (3.30) (2.18) 6680 5337 5747 (2.94) (3.76) (2.48) 6962 5966 (3.32) (2.80) 6181 (3.14) 6390 (3.50) 2940 (0.92) 3137 3555 (1.17) (0.72) 4612 3324 3767 (0.56) (1.45) (0.89) 4892 3503 3970 4289 (0.68) (1.75) (1.07) (0.68) 5162 3674 4164 4499 (0.81) (2.09) (1.28) (0.81) 5423 3839 4352 4702 (0.95) (2.45) (1.50) (0.95) 5677 3999 4533 4897 (1.10) (2.84) (1.74) (1.11) 5924 4154 4708 5086 (1.26) (3.26) (2.00) (1.27) 6164 4304 4878 5270 (1.44) (3.71) (2.27) (1.45) 6399 5043 5449 (1.62) (2.57) (1.63) 6629 5204 5622 (1.82) (2.88) (1.83) 6854 5361 5792 (2.03) (3.21) (2.04) 7074 5514 5958 (2.25) (3.56) (2.26) 7290 5664 6120 (2.48) (3.92) (2.50) 7503 6278 (2.72) (2.74) 7711 6433 (2.97) (2.99) 7917 6586 (3.24) (3.26) 8119 6735 (3.51) (3.54) 3169 (0.95) 3328 (1.15) 3479 3939 (1.36) (0.81) 3625 4104 (1.60) (0.95) 3765 4263 4683 (1.86) (1.10) (0.72) 5586 3901 4416 4852 (0.75) (2.13) (1.26) (0.83) 5788 4032 4564 5015 (0.86) (2.43) (1.44) (0.95) 5984 4159 4709 5173 (0.97) (2.74) (1.62) (1.07) 6175 4283 4849 5327 5866 (1.09) (3.08) (1.82) (1.20) (0.69) 6361 4403 4985 5476 6030 (1.21) (3.43) (2.03) (1.34) (0.77) 6543 4521 5118 5622 6191 (1.34) (3.80) (2.25) (1.48) (0.86) 6721 5247 5765 6348 (1.48) (2.48) (1.63) (0.95) 6895 5374 5904 6501 (1.63) (2.72) (1.79) (1.04) 7065 5498 6040 6651 (1.78) (2.97) (1.96) (1.14) 7232 5619 6173 6797 (1.94) (3.24) (2.13) (1.24) 7396 5738 6303 6941 (2.10) (3.51) (2.32) (1.34) 7558 5854 6431 7082 (2.27) (3.80) (2.51) (1.45) 7716 6557 7220 (2.45) (2.70) (1.57) 7872 6680 7356 (2.64) (2.91) (1.69) 8025 6802 7490 (2.83) (3.12) (1.81) 8176 6921 7621 (3.03) (3.34) (1.94) 8325 7038 7750 (3.23) (3.56) (2.07) 8471 7154 7877 (3.44) (3.80) (2.20) 8002 (2.34) 8126 (2.49) Notes: Coil capacity for other than 25 F T use the following formula: (trm - tew)/25 x rating at 25 F T. To aide in balancing the water systems, all units regardless of size have the same pressure drop across the water coils. The values in the ( ) indicate the nozzle pressure (inches of wg). The ratings above are based on 25 F T, 1.50 gpm water flow rate and 8 ft water coil pressure drop (all sizes) for a single coil. All ratings include allowance for lint screens. T = trm - tew (trm = room temperature and tew = entering water temperature). 11

Dimensions and data Model H4C PLENUM END PLUG FRONT VIEW F 5/16" x 5/8" SLOTS IN SUSPENSION MTG. "Z" BARS TYP (6) PLACES OPTIONAL AIR VENT AVAILABLE 3" BALANCING DAMPER ADJUSTMENT OPTIONAL TRANSITION FITTING AVAILABLE RETURN 4" O.D. PRIMARY AIR INLET SUPPLY 3 9/16" OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT 3" E D OPTIONAL LINT SCREEN AVAILABLE SEE CHART BELOW FOR OPTIONAL FITTINGS RIGHT SIDE VIEW 22 7/16" 3 3/16" 6 11/16" 6 11/16" 1" WALL 4" MIN 3 1/2" 4 7/8" 5 1/4" 10 5/16" 9 7/8" 4 1/2" 4 1/2" TYP. 12 11/16" 3/4" 1 5/16" 14 1/4" 13/16" 7 3/16" TYP. Unit size (H4C) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 30-1/4" 38-1/4" 46-1/4" 58-1/4" Nom. coil (E) 24-1/8" 32" 40" 52" Z Bar (F) 27-1/8" 35" 43" 55" Min. free areas (sq. In.) Discharge grille 81 108 135 175 Recirculation grille 234 288 343 439 Approx. shipping weight (LB) 38 57 59 73 Notes: Condensate connection mounted same side as coil connection Four inch minimum distance from wall required to obtain rated capacity; 8-1/2" minimum for screen removal Shipping weight includes packaging Code digit #8 Optional fittings Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Description: The H4C is shipped from the factory with the following: Acoustically designed plenum and nozzles as specified Two 6-tube coils with copper tubes and aluminum fins Condensate pan as specified Two Z brackets for mounting unit to a rigid flat horizontal surface Coil connections as specified Hardware kit includes: (8) Mounting screws (8) Tinnerman nuts (1) Lint screen clip All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Hydro-Air at its base office. 12 Dimensions and data

Dimensions and data Model HC PLENUM END PLUG FRONT VIEW 5/16" x 5/8" SLOTS IN SUSPENSION MTG. "Z" BARS TYP (6) PLACES BALANCING DAMPER ADJUSTMENT F 3" OPTIONAL AIR VENT AVAILABLE OPTIONAL TRANSITION FITTING AVAILABLE RETURN 4" O.D. PRIMARY AIR INLET SUPPLY 3 9/16" OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT 3" E D OPTIONAL LINT SCREEN AVAILABLE 3 3/16" SEE CHART BELOW FOR OPTIONAL FITTINGS RIGHT SIDE VIEW 21 9/16" 6 11/16" 6 11/16" 1" WALL 4" MIN 3 1/2" 4 7/8" 10 5/16" 9 7/8" 11 3/8" 4 1/2" 4 1/2" 3/4" Unit Size (HC) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 30-1/4" 38-1/4" 46-1/4" 58-1/4" Nom. coil (E) 24-1/8" 32" 40" 52" 13 7/16" 7 3/16" 1 5/8" Optional fittings Code digit #8 Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Z Bar (F) 27-1/8" 35" 43" 55" Min. free areas (sq. In.) Discharge grille 81 108 135 175 Recirculation grille 234 288 343 439 Approx. shipping weight (LB) 36 45 52 64 Notes: Condensate connection mounted same side as coil connection Four inch minimum distance from wall required to obtain rate capacity; 8-1/2" minimum for screen removal Shipping weight includes packaging Description: The HC is shipped from the factory with the following: Acoustically designed plenum and nozzles as specified One 6-tube coil with copper tubes and aluminum fins Condensate pan as specified Two Z brackets for mounting unit to a rigid flat horizontal surface Coil connections as specified Hardware kit includes: (8) Mounting screws (8) Tinnerman nuts (1) Lint screen clip All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Zehnder Rittling at its base office. 13

Dimensions and data Model V2H RIGHT SIDE VIEW 8 13/16" BALANCING DAMPER ADJUSTMENT FRONT VIEW OPTIONAL AIR VENT AVAILABLE 1 9/16" 3 5/8" (DISCH) 2 15/16" RETURN OPTIONAL TRANSITION FITTING AVAILABLE 2 1/4" 23" 4" O.D. 18 5/8" PRIMARY AIR INLET 3 1/2" 12 1/4" PLENUM END PLUG SUPPLY 3 9/16" SEE CHART BELOW FOR OPTIONAL FITTINGS LEVELING SCREW BOTH ENDS 2 5/8" E OPTIONAL LINT SCREEN AVAILABLE OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT 1 7/16" 3/4" WALL D Unit Size (V2H) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 29-1/2" 37-1/2" 45-1/2" 57-1/2" Nom. coil (E) 24-1/8" 32" 40" 52" Z Bar (F) Min. free areas (sq. In.) Discharge grille 3 inches 81 108 135 175 Recirculation grille 473 630 788 1023 Approx. shipping weight (LB) 35 43 52 66 Notes: Condensate connection mounted same side as coil connection Shipping weight includes packaging Code digit #8 Optional fittings Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Description: The V2H is shipped from the factory with the following: Acoustically designed plenum and nozzles as specified One 12-tube coil with copper tubes and aluminum fins Condensate pan as specified Coil connections as specified Recovery stack and drain pan assembled and ready for wall mounting Hardware kit includes: (2) Leveling screws (2) Leveling screw clips (4) Lint screen clips (2) Coil condensate plates with clips All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Zehnder Rittling at its base office. 14 Dimensions and data

Dimensions and data Model V4H RIGHT SIDE VIEW 10 5/16" FRONT VIEW 1 9/16" 3 5/8" (DISCH) OPTIONAL AIR VENT AVAILABLE PLENUM END PLUG BALANCING DAMPER ADJUSTMENT OPTIONAL TRANSITION FITTING AVAILABLE 2 1/4" 23" RETURN PRIMARY AIR INLET 3/4" 3 1/2" 4" O.D. RETURN SUPPLY SUPPLY 3 9/16" SEE CHART BELOW FOR OPTIONAL FITTINGS 8 7/16" LEVELING SCREW BOTH ENDS 12 1/4" 3 1/16" E OPTIONAL LINT SCREEN AVAILABLE OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT 1 7/16" 1 1/2" WALL D Unit Size (V4H) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 29-1/2" 37-1/2" 45-1/2" 57-1/2" Nom. coil (E) 24-1/8" 32" 40" 52" Min. free areas (sq. in.) Discharge grille 81 108 135 175 Recirculation grille 237 315 394 512 Approx. shipping weight (LB) 37 45 55 70 Notes: Condensate connection mounted same side as cooling coil connection Shipping weight includes packaging Orientation of coil connections to be determined Inner coil is always for cooling and determines whether it is RH or LH connections. Heating coil connections are opposite of cooling connections Code digit #8 Optional fittings Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Description: The V4H shipped from the factory with the following: Acoustically designed plenum and nozzles as specified Two 6-tube coil with copper tubes and aluminum fins Condensate pan as specified Coil connections as specified Recovery stack and drain pan, assembled ready for wall mounting Hardware kit includes: (2) Leveling screws (2) Leveling screw clips (4) Lint screen clips (2) Coil condensate plates with clips All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Zehnder Rittling at its base office. 15

Dimensions and data Model V4L RIGHT SIDE VIEW RETURN BALANCING DAMPER ADJUSTMENT FRONT VIEW OPTIONAL AIR VENT AVAILABLE OPTIONAL TRANSITION FITTING AVAILABLE 3/4" 3/4" 4 1/2" 7 1/16" 2 1/4" RETURN 4" O.D. PRIMARY AIR INLET 2 7/16" 3 1/2" WALL PLENUM END PLUG SUPPLY 3 1/16" E OPTIONAL LINT SCREEN AVAILABLE SUPPLY 3 9/16" SEE CHART BELOW FOR OPTIONAL FITTINGS OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT 8 7/16" 1 1/4" 1 9/16" 11" LEVELING SCREW BOTH ENDS 12 1/4" D Unit Size (V4L) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 29-1/2" 37-1/2" 45-1/2" 57-1/2" Nom. coil (E) 24-1/8" 32" 40" 52" Min. free areas (sq. in.) Discharge grille 81 108 135 175 Recirculation grille 124 165 206 269 Approx. shipping weight (LB) 26 31 36 47 Notes: Condensate connection mounted same side as cooling coil connection Shipping weight includes packaging Orientation of coil connections to be determined Inner coil is always for cooling and determines whether it is RH or LH connections. Heating coil connections are opposite of cooling connections Code digit #8 Optional fittings Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Description: The V4L is shipped from the factory with the following: Acoustically designed plenum and nozzles as specified Two 6-tube coils with copper tubes and aluminum fins Condensate pan as specified Coil connections as specified Hardware kit includes: (2) Leveling screws (2) Leveling screw clips (4) Lint screen clips (2) Coil condensate plates with clips All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Zehnder Rittling at its base office. 16 Dimensions and data

Dimensions and data Model V4W RIGHT SIDE VIEW 8 13/16" PLENUM END PLUG BALANCING DAMPER ADJUSTMENT FRONT VIEW OPTIONAL TRANSITION FITTING AVAILABLE 4 1/2" 7 1/4" 2 1/4" 3 1/2" 4" O.D. PRIMARY AIR INLET OPTIONAL AIR VENT AVAILABLE 3 9/16" COOLING COIL HEATING COIL WALL 22 7/8" RETURN RETURN SEE CHART BELOW FOR OPTIONAL FITTINGS 7 3/16" 13/16" 1 1/4" SUPPLY SUPPLY 3 1/16" OPTIONAL ACCESSORY LINT SCREEN E D OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT FLOOR 1 5/16" 2 1/2" 4 1/2" 3" MIN Unit Size (V4W) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 29-3/8" 37-3/8" 45-3/8" 57-3/8" Nom. coil (E) 24-1/8" 32" 40" 52" Min. height from floor Min. free areas (sq. in.) Discharge grille 3 inches 81 108 135 175 Recirculation grille 237 315 394 512 Approx. shipping weight (LB) 37 47 55 69 Notes: Condensate connection mounted same side as cooling coil connection Shipping weight includes packaging Orientation of coil conenctions to be determined Inner coil is always for cooling and determines whether it is RH or LH connections. Heating coil connections are opposite of cooling connections Code digit #8 Optional fittings Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Description: The V4W is shipped from the factory with the following: Acoustically designed plenum and nozzles as specified One 6-tube coil with copper tubes and aluminum fins Condensate pan as specified Coil connections as specified Hardware kit includes: (2) Leveling screws (2) Leveling screw clips (4) Lint screen clips (2) Coil condensate plates with clips All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Zehnder Rittling at its base office. 17

Dimensions and data Model VH RIGHT SIDE VIEW FRONT VIEW 1 9/16" 8 13/16" 3 5/8" (DISCH) BALANCING DAMPER ADJUSTMENT OPTIONAL TRANSITION FITTING AVAILABLE 2 1/4" 23" 3/4" RETURN 4" O.D. PRIMARY AIR INLET 3 1/2" 12 1/4" PLENUM END PLUG SUPPLY 3 9/16" SEE CHART BELOW FOR OPTIONAL FITTINGS 8 7/16" LEVELING SCREW BOTH ENDS 2 5/8" E OPTIONAL LINT SCREEN AVAILABLE OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT 1 7/16" WALL D Unit Size (VH) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 29-1/2" 37-1/2" 45-1/2" 57-1/2" Nom. coil (E) 24-1/8" 32" 40" 52" Min. height from floor Min. free areas (sq. in.) Discharge grille 3 inches 81 108 135 175 Recirculation grille 237 315 394 512 Approx. shipping weight (LB) 32 40 48 61 Notes: Condensate connection mounted same side as coil connection Shipping weight includes packaging Code digit #8 Optional fittings Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Description: The VH is shipped from the factory with the following: Acoustically designed plenum and nozzles as specified One 6-tube coil with copper tubes and aluminum fins Condensate pan as specified Coil connections as specified Recovery stack and drain pan, assembled and ready for wall mounting Hardware kit includes: (2) Leveling screws (2) Leveling screw clips (4) Lint screen clips (2) Coil condensate plates with clips All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Zehnder Rittling at its base office. 18 Dimensions and data

Dimensions and data Model VL FRONT VIEW RIGHT SIDE VIEW BALANCING DAMPER ADJUSTMENT OPTIONAL AIR VENT AVAILABLE OPTIONAL TRANSITION FITTING AVAILABLE 3/4" 3/4" 4 1/2" 7 1/16" 2 1/4" 2 7/16" 3 1/2" RETURN 4" O.D. PRIMARY AIR INLET 3 9/16" 8 7/16" 12 1/4" PLENUM END PLUG SEE CHART BELOW FOR OPTIONAL FITTINGS LEVELING SCREW BOTH ENDS SUPPLY 2 5/8" E OPTIONAL LINT SCREEN AVAILABLE OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT WALL D Unit Size (VL) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 29-1/2" 37-1/2" 45-1/2" 57-1/2" Nom. coil (E) 24-1/8" 32" 40" 52" Min. free areas (sq. in.) Discharge grille 81 108 135 175 Recirculation grille 124 165 206 269 Approx. shipping weight (LB) 21 26 31 38 Notes: Condensate connection mounted same side as coil connection Shipping weight includes packaging Code digit #8 Optional fittings Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Description: The VL is shipped from the factory with the following: Acoustically designed plenum and nozzles as specified One 6-tube coil with copper tubes and aluminum fins Condensate pan as specified Coil connections as specified Hardware kit includes: (2) Leveling screws (2) Leveling screw clips (4) Lint screen clips (2) Coil condensate plates with clips All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Zehnder Rittling at its base office. 19

Dimensions and data Model VW RIGHT SIDE VIEW PLENUM END PLUG BALANCING DAMPER ADJUSTMENT FRONT VIEW OPTIONAL TRANSITION FITTING AVAILABLE 7 1/2" 7 1/4" 4 1/2" 2 1/4" 3 1/2" 4" O.D. PRIMARY AIR INLET 3/4" 3 9/16" OPTIONAL AIR VENT AVAILABLE LEVELING SCREW BOTH ENDS 22 1/4" RETURN WALL 7 3/16" SUPPLY SEE CHART BELOW FOR OPTIONAL FITTINGS 1 1/4" 2 5/8" E OPTIONAL LINT SCREEN AVAILABLE OPTIONAL CONDENSATE PAN WITH 11/16" DRAIN ODF SWEAT 1/2" FLOOR 4 1/2" 3" MIN. D Unit Size (VW) 24" 32" 40" 52" Dimensions (in.) Drain pan (D) 29-1/2" 37-1/2" 45-1/2" 57-1/2" Nom. coil (E) 24-1/8" 32" 40" 52" Min. height from floor Min. free areas (sq. in.) Discharge grille 3 Inches 81 108 135 175 Recirculation grille 234 288 343 439 Approx. shipping weight (LB) 31 40 46 57 Notes: Condensate connection mounted same side as coil connection Shipping weight includes packaging Code digit #8 Optional fittings Description 0 1/2" ODF sweat fitting 1 1/2" ODF sweat fitting w/vent 2 1/2" ODM flare fitting 3 1/2" ODM flare fitting w/vent Description: The VW is shipped from the factory with the following: Acoustically designed plenum and nozzles as specified One 6-tube coil with copper tubes and aluminum fins Condensate pan as specified Coil connections as specified Drain pan, assembled and ready for wall mounting Hardware kit includes: (2) Leveling screws (2) Leveling screw clips (4) Lint screen clips (2) Coil condensate plates with clips All listed dimensions are approximate and are subject to change without notice. Modifications to the product specifications must be accepted by Zehnder Rittling at its base office. 20 Dimensions and data

General information This installation and start-up instructions literature is for horizontal and vertical Induction Units. Induction Units are hydronic terminal units designed for year-round cooling or cooling/heating. Your equipment is initially protected under the Zehnder Rittling standard 2-year warranty provided the steps outlined in this manual for initial inspection, installation, periodic maintenance and normal every day operation of the equipment are followed. This manual should be thoroughly reviewed prior to the installation, start-up or maintenance of the equipment. If any questions arise, please contact your local Zehnder Rittling sales representative or the factory before proceeding any further. There are a multitude of options and accessories available with the equipment covered in this manual. For more specific details on the included options and accessories, refer to the order acknowledgment, approved submittals and catalogs. Receiving Upon delivery, examine the shipment against the bill of lading to make sure all of the units have been received and then check each unit carefully for shipping damage. Any damage should be reported to the freight carrier and a claim should be filed with them. Ensure the shipping company makes proper notation of any shortages or damage on all copies of the freight bill. Concealed damage not discovered during unloading must be reported to the shipping company within 15 days of receipt of the shipment. All units are shipped F.O.B. factory. Therefore, Zehnder Rittling is not responsible for damage during transit. It is the responsibility of the installing contractor to inspect and verify that the units shipped were in fact the correct model number, have the correct nozzles, etc. Any discrepancies should be reported to the local sales representative for immediate resolution prior to unpackaging and installation. The factory should be notified of any warranty repairs required in writing before any corrective action is taken. The factory must be fully informed of the expected costs before the work is begun. Zehnder Rittling is not responsible for any repairs or alterations made by the purchaser without Zehnder Rittling s written consent and will not accept any back charges associated with these repairs or alterations. The return of damaged equipment will not be accepted without written authorization from Zehnder Rittling. A unit that has received a written Return Goods Authorization will be inspected by Zehnder Rittling upon receipt. Any damage, missing parts, reworking or repackaging resulting from prior installation will constitute just cause for Zehnder Rittling to issue partial credit. Several components are shipped loose for field installation and to offer added protection during shipment and job site storage. These items may include; lint screens, wall mounting strips, air transition fittings, etc. General information 21